Log in

Relevant bibliographies by topics / Colour of OLED in CIE coordinates / Journal articles

To see the other types of publications on this topic, follow the link: Colour of OLED in CIE coordinates.

Journal articles on the topic 'Colour of OLED in CIE coordinates'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Colour of OLED in CIE coordinates.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Zhou, Yan, Lin Ding, Li-Ming Xiang, and Jian Pei. "Covalent Functionalized Conjugated Dendrimers for Organic Light Emitting Diodes: Synthesis, Characterization, and the Deep Blue Electroluminescence." Australian Journal of Chemistry 64, no. 2 (2011): 160. http://dx.doi.org/10.1071/ch10320.

Full text

Abstract:

Two deep blue-emitting dendrimers 11 and 12 with carbazole containing dendrons were developed in this contribution. The carbazole-containing units were introduced to tune the charge-transporting property of the desired dendrimers. The investigation of photophysical properties, electrochemical, and electroluminescence properties demonstrated that the balance between electron and hole transporting was achieved from both dendrimers. The preliminary organic light-emitting diode (OLED) fabrication achieved a pure blue colour with stable CIE chromaticity coordinates (X: 0.15–0.16, Y: 0.09–0.10) for

APA, Harvard, Vancouver, ISO, and other styles

2

Huang, Chen-Chao, Miao-Miao Xue, Fu-Peng Wu, Yi Yuan, Liang-Sheng Liao, and Man-Keung Fung. "Deep-Blue and Hybrid-White Organic Light Emitting Diodes Based on a Twisting Carbazole-Benzofuro[2,3-b]Pyrazine Fluorescent Emitter." Molecules 24, no. 2 (2019): 353. http://dx.doi.org/10.3390/molecules24020353.

Full text

Abstract:

A novel deep-blue fluorescent emitter was designed and synthesized. The external quantum efficiency (ηEQE) of the blue-emitting, doped, organic light-emitting diode (OLED) was as high as 4.34%. The device also exhibited an excellent color purity with Commission Internationale de l’Eclairage (CIE) coordinates of x = 0.15 and y = 0.05. In addition, the triplet energy had a value of 2.7 eV, which is rare for an emitter with deep-blue emission, which makes it a preferred choice for high-performance white OLEDs. By optimizing the device architectures, the color of hybrid-white OLEDs could be tunabl

APA, Harvard, Vancouver, ISO, and other styles

3

Tabaka, Przemysław, and Pawel Rozga. "The light color quality of LED operating at winter temperatures." Photonics Letters of Poland 11, no. 4 (2019): 112. http://dx.doi.org/10.4302/plp.v11i4.955.

Full text

Abstract:

The paper presents the results of calculations of colorimetric parameters of LED sources operating at a temperature range from -25oC to 25oC. The chromaticity coordinates and color rendition quality parameters were calculated on the basis of registered spectral distributions of radiation. For individual LED chromaticity shift is illustrated at CIE 1931 x,y diagram with 3 step and 7 step MacAdam ellipses. Full Text: PDF ReferencesJ. P. Freyssinier, D. Frering, J. Taylor, N. Narendran, and P. Rizzo, Reducing lighting energy use in retail display windows. Sixth International Conference on Solid S

APA, Harvard, Vancouver, ISO, and other styles

4

Patel, Krishn Das, Fuh-Shyang Juang, Hao-Xuan Wang, Chong-Zhe Jian, and Jia-You Chen. "Quantum Dot-Based White Organic Light-Emitting Diodes Excited by a Blue OLED." Applied Sciences 12, no. 13 (2022): 6365. http://dx.doi.org/10.3390/app12136365.

Full text

Abstract:

In this study, white organic light-emitting diodes (OLEDs) consisting of red quantum dots (RQD) and green quantum dots (GQD) were investigated. These are the most exciting new lighting technologies that have grown rapidly in recent years. The white OLED development processes used consisted of the following methods: (a) fabrication of a blue single-emitting layer OLED, (b) nanoimprinting into QD photoresists, and (c) green and red QD photoresists as color conversion layers (CCL) excited by blue OLEDs. To fabricate the blue OLED, the HATCN/TAPC pair was selected for the hole injection/transport

APA, Harvard, Vancouver, ISO, and other styles

5

Rashamuse, Thompho Jason, Reagan Lehlogonolo Mohlala, Elena Mabel Coyanis, and Nomampondo Penelope Magwa. "A Review: Blue Fluorescent Zinc (II) Complexes for OLEDs—A Last Five-Year Recap." Molecules 28, no. 13 (2023): 5272. http://dx.doi.org/10.3390/molecules28135272.

Full text

Abstract:

Blue emissions in organic light-emitting diodes (OLEDs) are essential for their application in solid-state lighting and full-colour flat panel displays. On the other hand, high-power blue emitters are still uncommon, especially those that can achieve the Commission Internationale de l’Eclairage (CIE, X, Y) coordinates of (0.14, 0.08) in the National Television System Committee (NTSC) blue standard and have high external quantum efficiencies (EQE) of more than 5% because their molecular design presents an enormous challenge. Therefore, creating effective, stable, pure, and deep blue fluorescent

APA, Harvard, Vancouver, ISO, and other styles

6

Meng, Xin-Yue, Zi-Qi Feng, You-Jun Yu, Liang-Sheng Liao, and Zuo-Quan Jiang. "Highly Efficient Blue Thermally Activated Delayed Fluorescence Emitters Based on Multi-Donor Modified Oxygen-Bridged Boron Acceptor." Molecules 27, no. 13 (2022): 4048. http://dx.doi.org/10.3390/molecules27134048.

Full text

Abstract:

The employment of thermally activated delayed fluorescence (TADF) emitters is one of the most promising ways to realize the external quantum efficiency (EQE) of over 25% for organic light-emitting diodes (OLEDs). In addition, the TADF emitter based on oxygen-bridged boron (BO) fragment can maintain blue emission with high color purity. Herein, we constructed two blue TADF emitters, 3TBO and 5TBO, for OLEDs application. Both emitters consist of three donors linked at the oxygen-bridged boron acceptor. OLED devices based on 3TBO and 5TBO exhibited both high excellent device efficiency and high c

APA, Harvard, Vancouver, ISO, and other styles

7

Cengiz, Akay, and Gültekin Z. "Design Design and Construction of Home-Made Source Measure Unit." Engineering and Technology Journal 07, no. 03 (2022): 1183–89. https://doi.org/10.5281/zenodo.6379362.

Full text

Abstract:

The voltage values used in an IV measurement often depend on the specific electronic components being tested. For example, to test a solar cell, voltage values in the range of -3 V - 3 V are sufficient, while for an LED this value is in the range of 0 V - 12 V. However, sometimes applying a voltage can change the electronic properties of a system under test. For example, the voltage applied to a diode changes the capacitive values of the diode. Therefore, the parameters of the tested system should not change the current-voltage values of the testing system during the test. In this study, a sof

APA, Harvard, Vancouver, ISO, and other styles

8

Kutsiy, S., Y. Danyliv, I. Danyliv, et al. "The development of non-doped oled based on donor-acceptor tetrachloropyridine-carbazole material with the emission in "deep-blue" region." Information and communication technologies, electronic engineering 1, no. 2 (2021): 123–30. http://dx.doi.org/10.23939/ictee2021.02.123.

Full text

Abstract:

The development of efficient organic light emitting diodes (OLED) based on the phenomenon of intramolecular thermally activated delayed fluorescence (TADF), in the design of which there are no blue phosphorescent emitters based on rare earth metals, still remains a challenge in the development of new lighting systems and OLED displays. The article proposes a technological approach to the formation of new type of OLED, where the emitter is an organic donor-acceptor molecular material 9- (2,3,5,6-tetrachloropyridin-4-yl) -9H-carbazole (4-CzPyCl4), in which electronic interaction between the dono

APA, Harvard, Vancouver, ISO, and other styles

9

Kwon, Hyukmin, Sunwoo Park, Hayoon Lee, Minjin Park, and Jongwook Park. "P‐165: Implementation of Three‐Color White Electroluminescence Emission Utilizing Perovskite Nanocrystals and Organic Emitters." SID Symposium Digest of Technical Papers 54, no. 1 (2023): 1774–77. http://dx.doi.org/10.1002/sdtp.16948.

Full text

Abstract:

In the present study, we report for the first‐time three‐color white‐light emission with high brightness from white‐emitting PeQD organic light‐emitting diodes (WPeQD‐OLEDs) fabricated using a PeQD material and organic emitters. A WPeQD‐OLED bilayer was prepared by depositing a blue‐emitting organic layer on top of a CsPb(Br/I)3 QD layer mixed with N9,N10‐Bis(4‐(tert‐butyl) phenyl)‐N9,N10‐Di‐o‐Tolylanthracene‐9,10‐Diamine (p‐Tb‐o‐Me‐TAD), which were spin‐coated as red and green emitters, respectively. In the WPeQD‐OLED device, charge carriers were distributed by an 9‐(naphthalen‐1‐yl)‐10‐(naph

APA, Harvard, Vancouver, ISO, and other styles

10

Oh, Saeyoung, Hyukmin Kwon, Sangwook Park, et al. "High-Efficiency Deep-Blue Solution-Processed OLED Devices Enabled by New Dopant Materials." Materials 18, no. 10 (2025): 2213. https://doi.org/10.3390/ma18102213.

Full text

Abstract:

Two blue fluorescent dopants were designed and successfully synthesized, 5-(2,12-di-tert-butyl-5,9-dioxa-13b-boranaphtho [3,2,1-de]anthracen-7-yl)-5H-benzo[b]carbazole (TDBA-Bz) and 9-(2,12-di-tert-butyl-5,9-dioxa-13b-boranaphtho[3,2,1-de]anthracen-7-yl)-9H-carbazole (TDBA-Cz). Both in solution and the film state, the two emitters demonstrated deep-blue luminescence characteristics. In solution-processed organic light-emitting diodes (OLEDs), TDBA-Bz and TDBA-Cz used as dopant materials showed electroluminescence peaks at 436 nm and 413 nm, respectively. The corresponding CIE color coordinates

APA, Harvard, Vancouver, ISO, and other styles

11

Yan, Jingxiao, Jiachen Hua, and Dong Zhai. "P‐2.5: a Color Compensation Scheme for Solving Metamerism Failure between OLED and LCD Displays." SID Symposium Digest of Technical Papers 56, S1 (2025): 856–63. https://doi.org/10.1002/sdtp.18950.

Full text

Abstract:

In the case where the color coordinates of the screen display are consistent across different display devices, there can still be inconsistencies in the perceived display effect by the human eye, which is known as the metamerism failure. Especially between OLED displays and LCD displays, due to the significant spectral differences between them, even if they are calibrated to the same color gamut and white point, there are still noticeable differences in their subjective effects. This study proposes a compensation scheme for this problem: selecting one OLED display and one LCD display, choosing

APA, Harvard, Vancouver, ISO, and other styles

12

Chapran, Marian, Enrico Angioni, Neil J. Findlay, et al. "An ambipolar BODIPY derivative for a white exciplex OLED and cholesteric liquid crystal laser toward multifunctional devices." ACS Applied Materials and Interfaces 9, no. 5 (2017): 4750–57. https://doi.org/10.1021/acsami.6b13689.

Full text

Abstract:

A new interface engineering method is demonstrated for the preparation of an efficient white organic light-emitting diode (WOLED) by embedding an ultrathin layer of the novel ambipolar red emissive compound 4,4-difluoro-2,6-di(4-hexylthiopen-2-yl)-1,3,5,7,8-pentamethyl-4-bora-3a,4a-diaza-s-indacene (bThBODIPY) in the exciplex formation region. The compound shows a hole and electron mobility of 3.3 × 10<sup>-4</sup> and 2 × 10<sup>-4</sup> cm<sup>2</sup> V<sup>-1</sup> s<sup>-1</sup>, respectively, at electric fields higher than 5.3 × 10<sup>5</sup> V cm<sup>-1</sup>. The resulting WOLED exhibi

APA, Harvard, Vancouver, ISO, and other styles

13

Kim, Jiyun, Suhyeon Jeong, Sangwook Park, et al. "Electrical and Optical Properties Depending on the Substitution Position of a Novel Indolocarbazole Dimer." Materials 18, no. 9 (2025): 2058. https://doi.org/10.3390/ma18092058.

Full text

Abstract:

Two innovative dimeric derivatives of indolo[3,2,1-jk]carbazole (ICz), named 7,7′-biindolo[3,2,1-jk]carbazole (ICzDO) and 4,4′-biindolo[3,2,1-jk]carbazole (ICzDM), have been developed. Both dimers consist of two ICz units coupled through distinct ortho and meta positions. In the solution state, ICzDO and ICzDM exhibited photoluminescence (PL) maxima at 379 nm and 391 nm, demonstrating emission in the deep-blue region. These compounds show exceptionally narrow emission spectra, characterized by full width at half maximum (FWHM) of 28 nm for ICzDO and 26 nm for ICzDM. In the film state, ICzDM ex

APA, Harvard, Vancouver, ISO, and other styles

14

Xu, Yan Mei, Chong Liu, and Zhi Ping Yang. "Numerical Model of Organic Light Emitting Device with Different Thickness." Applied Mechanics and Materials 44-47 (December 2010): 1758–62. http://dx.doi.org/10.4028/www.scientific.net/amm.44-47.1758.

Full text

Abstract:

In the paper a new OLED is provided. By adjusting the thickness of each layer in OLED the peak spectral wavelength moves to red. To explain the phenomenon a new simulation is presented to research the relation between thickness of the layer and their CIE coordinates. We use optical transmission matrix to deal with multiple layers. As a result, we obtain the relationships between the CIE coordinates of the device and the thickness of each layerIn this paper, we provide such a theoretic analysis.

APA, Harvard, Vancouver, ISO, and other styles

15

Li, Guijie, Feng Zhan, Weiwei Lou, et al. "Efficient deep-blue organic light-emitting diodes employing difluoroboron-enabled thermally activated delayed fluorescence emitters." Journal of Materials Chemistry C 8, no. 48 (2020): 17464–73. http://dx.doi.org/10.1039/d0tc04162a.

Full text

Abstract:

The design and development of efficient emitters for deep-blue OLED with CIE<sub>y</sub> < 0.10 remains a challenge. A new D–π–A-BF<sub>2</sub>-type TADF emitter BF<sub>2</sub>-DMCz was developed, and the BF<sub>2</sub>-DMCz-doped deep-blue OLED achieved a peak EQE of 8.4% with CIE coordinates of (0.149, 0.083).

APA, Harvard, Vancouver, ISO, and other styles

16

Xu, Yan Mei, and Chong Liu. "A New Method for OLED Optical Output Simulation." Applied Mechanics and Materials 110-116 (October 2011): 3389–93. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.3389.

Full text

Abstract:

In the paper a new method is presented to simulate the course of light output from organic light emitting device. The method uses optical transmission matrix to deal with multiple layers. To confirm the validity of our theories, a comparison of the theoretic analysis with testing results is given. The calculated curve consistented with the experimental value. By this methoed the Commission Internationale de L'Eclairage （CIE） coordinates of device were simulated. By adjusting the thickness of each layer in organic light emission diode (OLED) we obtained different CIE coordinates. When thickness

APA, Harvard, Vancouver, ISO, and other styles

17

Yao, Zi Jun, Hua Jing Zheng, Zheng Ruan, and Quan Jiang. "The Performance of White Light OLED Phosphorescence Materials." Advanced Materials Research 512-515 (May 2012): 1807–12. http://dx.doi.org/10.4028/www.scientific.net/amr.512-515.1807.

Full text

Abstract:

High-efficiency WOLEDs based on phosphorescent dye bis[2-(4-tert-butylphenyl)benzothiazolato-N,C2′]iridium (acetylacetonate) [(t-bt)2 lr (acac)] as yellow emitting layer were fabricated. The turn-on voltage of the device was 3 V with a maximum luminance of 15,460 cd/m2 at 16.5 V and a maximum luminance efficiency of 7.5 lm/W at 4 V. The CIE coordinates located at (0.33, 0.32) and remained unchanged at over 8 V, almost consistent with optimum the white CIE of (0.33, 0.33). The effect of carrier trapping and energy transfer on the device performance was also discussed.

APA, Harvard, Vancouver, ISO, and other styles

18

Kuo, Hsin-Hung, Ling-Yang Hsu, Jen-Yung Tso, et al. "Blue-emitting bis-tridentate Ir(iii) phosphors: OLED performances vs. substituent effects." Journal of Materials Chemistry C 6, no. 39 (2018): 10486–96. http://dx.doi.org/10.1039/c8tc03194k.

Full text

Abstract:

Dependence of external quantum efficiency (EQE) and radiative decay lifetime of blue-emitting OLED is established with photostable, bis-tridentate Ir(iii) emitters, giving max. EQE and luminescence of 12.2% and 18 980 cd m<sup>−2</sup>, and with CIE<sub>x,y</sub> coordinates between (0.16, 0.22) and (0.17, 0.27).

APA, Harvard, Vancouver, ISO, and other styles

19

De Silva, Thenahandi Prasanthi Deepthika, Sang Gil Youm, Frank R. Fronczek, Girija Sahasrabudhe, Evgueni E. Nesterov, and Isiah M. Warner. "Pyrene-Benzimidazole Derivatives as Novel Blue Emitters for OLEDs." Molecules 26, no. 21 (2021): 6523. http://dx.doi.org/10.3390/molecules26216523.

Full text

Abstract:

Three novel small organic heterocyclic compounds: 2-(1,2-diphenyl)-1H-benzimidazole-7-tert-butylpyrene (compound A), 1,3-di(1,2-diphenyl)-1H-benzimidazole-7-tert-butylpyrene (compound B), and 1,3,6,8-tetra(1,2-diphenyl)-1H-benzimidazolepyrene (compound C) were synthesized and characterized for possible applications as blue OLED emitters. The specific molecular design targeted decreasing intermolecular aggregation and disrupting crystallinity in the solid-state, in order to reduce dye aggregation, and thus obtain efficient pure blue photo- and electroluminescence. Accordingly, the new compounds

APA, Harvard, Vancouver, ISO, and other styles

20

Chu, Chun-Chieh, Yuan-Zhen Zhuang, Chia-Hsun Chen, et al. "P‐123: Double Emitting Layer Structure for high efficiency and ultra‐stable blue Triplet‐Triplet Annihilation OLED." SID Symposium Digest of Technical Papers 54, no. 1 (2023): 1312–13. http://dx.doi.org/10.1002/sdtp.16822.

Full text

Abstract:

By using the double emitting layer (DEML) structure in a blue triplet‐triplet annihilation organic light‐emitting diode (TTA‐OLED), maximum external quantum efficiency (EQEmax) of 16.1% with CIE coordinates of (0.135, 0.188) and half‐lifetime of 224,000 hours at initial luminance of 1,000 cd/m2was achieved. The degradation mechanism of TTA‐OLEDs was also investigated by conducting photoluminescence degradation experiment.

APA, Harvard, Vancouver, ISO, and other styles

21

Chen, Kan-Lin, Chien-Jung Huang, Wen-Ray Chen, Chih-Chieh Kang, Wen-How Lan, and Yu-Chen Lee. "The Investigation on Color Purity of Blue Organic Light-Emitting Diodes (BOLED) by Hole-Blocking Layer." International Journal of Photoenergy 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/878537.

Full text

Abstract:

Organic light-emitting diodes (OLEDs) with triple hole-blocking layer (THBL) structure, which consist of 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (BCP), 4,4′-bis(2,2′diphenyl vinil)-1,1′-biphenyl (DPVBi), and (4,4′-N,N′-dicarbazole)biphenyl (CBP), have been fabricated. Regardless of applied voltage variation, the luminous efficiency of the OLEDs with THBL structure was increased by 41% as compared with the dual hole-blocking layer (DHBL) structure. The CIE coordinates of (0.157, 0.111) of device with THBL structure are close to pure blue emission than that of other devices of DHBL. There

APA, Harvard, Vancouver, ISO, and other styles

22

Xue, Yan, Qiong Nie, Xin Hou, et al. "Deep-Blue Organic Light-Emitting Diodes Employed Traditional Hole Transporting Material as Emitter for 31-Inch 4K Flexible Display." Crystals 13, no. 4 (2023): 687. http://dx.doi.org/10.3390/cryst13040687.

Full text

Abstract:

High-efficiency deep-blue organic light-emitting diodes (OLEDs) play a crucial role in realizing ultra-high-definition (UHD) flat-panel displays and reducing power consumption. Generally, most reported OLEDs with a Commission Internationale de L’Eclairage (CIE) y coordinate < 0.06 are achieved by traditional fluorescent deep-blue emitters. However, it is challenging to obtain deep-blue fluorescent OLEDs with a high external quantum efficiency (EQE) (reaching the theoretical limit of 5%). In this work, we have successfully employed a hole-transporting material for an emitter, which can incre

APA, Harvard, Vancouver, ISO, and other styles

23

Marciniak, L., D. Hreniak, and W. Strek. "Controlling luminescence colour through concentration of Dy3+ ions in LiLa1−xDyxP4O12 nanocrystals." J. Mater. Chem. C 2, no. 28 (2014): 5704–8. http://dx.doi.org/10.1039/c4tc00682h.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Kadim, Akeel M. "Fabrication of Quantum Dots Light Emitting Device by Using CdTe Quantum Dots and Organic Polymer." Journal of Nano Research 50 (November 2017): 48–56. http://dx.doi.org/10.4028/www.scientific.net/jnanor.50.48.

Full text

Abstract:

Cadmium telluride CdTe QDs was prepared by chemical reaction and used to fabricate electroluminescence quantum dot hybrid junction device. QD-LED was fabricated using TPD: PMMA/CdTe/Alq3 device which synthesized by phase segregation method. The hybrid white light emitting devices consists, of three-layers deposited successively on the ITO glass substrate; the first layer was of Tetra-Phenyl Diaminobiphenyl (TPD) polymer mixed with polymethyl methacrylate (PMMA) polymers, while the second layer was 0.5wt% of the (CdTe) QDs for hybrid device, whereas the third layer was Tris (8-hydroxyquinoline)

APA, Harvard, Vancouver, ISO, and other styles

25

Surkov, Ilya V., Maxim A. Fenik, Victoria A. Rybina, and Andrey N. Turkin. "Spectrum Modelling as a Method for Temperature Correction of Organic Light Emitting Diodes Based on Three-Component Structures." Light & Engineering, no. 06-2023 (December 2023): 113–17. http://dx.doi.org/10.33383/2023-062.

Full text

Abstract:

OLED technology is widely used in various displays, which operate in a wide range of temperatures. For such devices, it is necessary to maintain the luminance and chromaticity coordinates at the given level when the external temperature changes. In this work, a program was developed that, based on the electro-physical characteristics and electroluminescence spectra of a white OLED sample at different temperatures and currents, as well as the spectral characteristics of the coloured filters, allows for selection of currents in the range of (1–25) mA, applied to each subpixel in such a way as to

APA, Harvard, Vancouver, ISO, and other styles

26

Chiu, Chien-Liang, Meng-Syun Lin, and Yi-Chen Wu. "Hermetic Seal of Organic Light Emitting Diode with Glass Frit." Molecules 27, no. 1 (2021): 76. http://dx.doi.org/10.3390/molecules27010076.

Full text

Abstract:

The components of OLED encapsulation with hermetic sealing and a 1026-day lifetime were measured by PXI-1033. The optimal characteristics were obtained when the thickness of the TPBi layer was 20 nm. This OLED obtained a maximum luminance (Lmax) of 25,849 cd/m2 at a current density of 1242 mA/cm2, an external quantum efficiency (EQE) of 2.28%, a current efficiency (CE) of 7.20 cd/A, and a power efficiency (PE) of 5.28 lm/W. The efficiency was enhanced by Lmax 17.2%/EQE 0.89%/CE 42.1%/PE 41.9%. The CIE coordinates of 0.32, 0.54 were all green OLED elements with wavelengths of 532 nm. The shear

APA, Harvard, Vancouver, ISO, and other styles

27

Godumala, Mallesham, Suna Choi, Min Ju Cho, and Dong Hoon Choi. "Thermally activated delayed fluorescence blue dopants and hosts: from the design strategy to organic light-emitting diode applications." Journal of Materials Chemistry C 4, no. 48 (2016): 11355–81. http://dx.doi.org/10.1039/c6tc04377a.

Full text

Abstract:

Thermally activated delayed fluorescence materials exhibited outstanding external quantum efficiencies in OLEDs along with good CIE color coordinates and improved device stabilities. Hence these are most promising for commercialization of OLEDs.

APA, Harvard, Vancouver, ISO, and other styles

28

Lemr, Karel, and Milan Kotouček. "Evaluation of colour changes of screened acid-base indicators." Collection of Czechoslovak Chemical Communications 54, no. 2 (1989): 346–60. http://dx.doi.org/10.1135/cccc19890346.

Full text

Abstract:

Based on computer-assisted calculations, six screened indicators were prepared and used for visual titration end point indication. Three of them were evaluated in terms of objective colour characteristics. Their colour changes were characterized in the CIE-xy (1931) international colorimetric system, by the Helmholtz coordinates, complementary Qx, Qy coordinates, perceptibility and course of the ΔJ/ΔpH = f(pH) function. In addition, new indices were introduced, viz. partial quality indices IE, Ip and Im, related with the colour difference between the two indicator species (IE), their colour pu

APA, Harvard, Vancouver, ISO, and other styles

29

Shualdi, Wedianti, Nik Mohd Azmi, Nurul Huda Yusoff, Nor Adhila Muhammad, and Khairuldin Mohd Isha. "Thermally Stable Encapsulation Material Based on Green and Red Lanthanide Phosphor for White Light Emitting Diodes." Applied Mechanics and Materials 815 (November 2015): 182–87. http://dx.doi.org/10.4028/www.scientific.net/amm.815.182.

Full text

Abstract:

This study reported thermal stability of hybrid sol-gel encapsulation materials doped with lanthanides complexes for generating white light. Red and green lanthanide phosphor, Eu (tta)3phen and Tb (4DBBA)3TPPO were incorporated into VTES:TEOS hybrid sol-gel and dispensed into 360 nm to 390 nm UV LED packages. Thermal properties of developed encapsulation material were analysed by TGA. A thermal aging test up to 96 hours was done to check the stability of developed encapsulation material towards UV LED junction temperature of 120°C and the luminescence properties changes was observed using phot

APA, Harvard, Vancouver, ISO, and other styles

30

Liao, Ying Jie, Ji Zhong Liu, Yong Zhang, Long Li, Fang Fang Yu, and Bin Wei. "High-Performance Thin Film Encapsulation for the Application of White Organic Light-Emitting Diodes." Materials Science Forum 663-665 (November 2010): 256–59. http://dx.doi.org/10.4028/www.scientific.net/msf.663-665.256.

Full text

Abstract:

Color conversion method has been used to fabricate chromatic-stability white organic light-emitting diodes (OLEDs). Experimental results found little CIE coordinate migration while changing operation voltage from 5 V to 12 V. A simple thin-film encapsulation (TFE) structure has been developed through vacuum thermal deposition in combination with plasma enhanced chemical vapor deposition. The luminance of the encapsulated white OLED remain unchanged during the test time. The novel approach is being expected to lower the cost and achieve high-performance TFE.

APA, Harvard, Vancouver, ISO, and other styles

31

Wang, Jun, Ya Dong Jiang, and Jun Sheng Yu. "Identification of White Light Emission with Two Complementary Colors in Organic Light-Emitting Devices." Advanced Materials Research 284-286 (July 2011): 2157–60. http://dx.doi.org/10.4028/www.scientific.net/amr.284-286.2157.

Full text

Abstract:

Simple method of determining emission light color in organic light-emitting diodes (OLEDs) with two emissive materials from their electroluminescent (EL) spectra has been presented. The Commission Internationale de l'Eclairage (CIE) coordinates and two EL intensity rates of OLEDs can be simulated with this method. White light OLEDs were fabricated with a blue light emission from 4,4'-bis[N-1-napthyl-N-phenyl-amino]biphenyl (NPB) and a yellow light emission from bis[2-(4-tert-butylphenyl)benzothiazolato-N,C2’]iridium (acetylacetonate) [(t-bt)2Ir(acac)], and the device shows the CIE coordinates

APA, Harvard, Vancouver, ISO, and other styles

32

Jang, Beomsu, Giwoong Han, Kiju Kim, Hakjun Lee, Youngkwan Kim, and Seungsoo Yoon. "9-(10-phenylanthracen-9-yl)-Benzo[b]Fluoreno[3,4-d] Thiophene Derivatives for Blue Organic Light-Emitting Diodes." Journal of Nanoscience and Nanotechnology 21, no. 7 (2021): 3914–18. http://dx.doi.org/10.1166/jnn.2021.19231.

Full text

Abstract:

In this study, two blue fluorescence materials using phenylanthracene-substituted fluorene derivatives were synthesized and characterized for organic light-emitting diodes (OLEDs). To study their electroluminescent properties, OLED devices were fabricated using these two materials as emissive layer (EML). A device using 7,7-diphenyl-9-(10-phenylanthracen-9-yl)-7H-benzo[b]fluoreno[3,4-d]thiophene in emitting layer showed the highest value of EQE value which is 3.51%. It also showed the luminance efficiency of 3.22 cd/A and power efficiency of 2.89 lm/W with the CIE coordinates (0.15, 0.09).

APA, Harvard, Vancouver, ISO, and other styles

33

Yang, Mingxue, Tian-Xiang Zhao, Si-Chao Ji, et al. "Voltage-Dependent Emission Varying from Blue to Orange–Red from a Nondoped Organic Light-Emitting Diode with a Single Emitter." Nanomaterials 12, no. 14 (2022): 2333. http://dx.doi.org/10.3390/nano12142333.

Full text

Abstract:

Organic light-emitting diodes (OLEDs) with tunable emission colors, especially white OLEDs, have rarely been observed with a single emitter in a single emissive layer. In this paper, we report a new compound featuring a D–A–D structure, 9,9′-(pyrimidine-2,5-diylbis(2,1-phenylene))bis(3,6-di-tert-butyl-9H-carbazole) (PDPC). A nondoped OLED using this compound as a single emitter exhibits unique voltage-dependent dual emission. The emission colors range from blue to orange–red with an increase in voltage, during which white electroluminescence with a Commission Internationale De L’Eclairage (CIE

APA, Harvard, Vancouver, ISO, and other styles

34

Yu, Pengfei, та Yin Xiao. "Non-Doped Deep-Blue OLEDs Based on Carbazole-π-Imidazole Derivatives". Materials 14, № 9 (2021): 2349. http://dx.doi.org/10.3390/ma14092349.

Full text

Abstract:

In this work, we designed and synthesized four bipolar blue-emitting materials with carbazole, imidazole, and biphenyl as donor, acceptor, and p bridge, respectively. The twisted phenylimidazole acceptor leads to a wider band-gap and hence deeper blue emission than the conjugated phenanthrimidazole acceptor. For the substituents on the carbazole donor, the t-butyl group could prevent the intramolecular charge transfer (ICT) process more effectively than the methoxy group. A non-doped deep-blue organic light-emitting diodes (OLED) is obtained with CIE coordinates of (0.159, 0.080), a maximum lu

APA, Harvard, Vancouver, ISO, and other styles

35

Lee, Jin Ho, Gi Woong Han, Ki Ju Kim, Hakjun Lee, Young Kwan Kim, and Seung Soo Yoon. "7,7-Dimethyl-9-(10-phenylanthracen-9-yl)-7H-Benzo[b] Fluoreno[3,4-d]Thiophene Derivatives for Blue Fluorescent Organic Light-Emitting Diodes." Journal of Nanoscience and Nanotechnology 21, no. 9 (2021): 4665–69. http://dx.doi.org/10.1166/jnn.2021.19294.

Full text

Abstract:

In this study, we designed and synthesized two blue fluorescence materials using 7,7-dimethyl-9-(10-phenylanthracen-9-yl)-7H-benzo[b]fluoreno[3,4-d]thiophene substituted anthracene derivatives. To characterize their electroluminescent properties, we fabricated the OLED devices using these two emitting materials. Particularly, a device using 7,7-dimethyl-9-(10-phenylanthracen-9-yl)-7Hbenzo[ b]fluoreno[3,4-d]thiophene showed maximum values of luminous efficiency, power efficiency, and external quantum efficiency of 2.42 cd/A, 1.48 lm/W, 3.08% at 20 mA/cm2, respectively with CIE (x, y) coordinate

APA, Harvard, Vancouver, ISO, and other styles

36

Jang, Beomsu, Giwoong Han, Kiju Kim, Hakjun Lee, Young Kwan Kim, and Seung Soo Yoon. "9-(10-phenylanthracen-9-yl)-7H-Fluoreno[4, 3-b]Benzofuran Derivatives for Blue Organic Light-Emitting Diodes." Journal of Nanoelectronics and Optoelectronics 16, no. 5 (2021): 844–48. http://dx.doi.org/10.1166/jno.2021.3011.

Full text

Abstract:

In this study, two blue fluorescent using phenylanthracene-substituted furan derivatives were synthesized for organic light-emitting diodes (OLEDs) and subsequently characterized. To study the electroluminescent properties of the materials, OLED devices were fabricated using these two materials as an emissive layer (EML). The device using 7,7-diphenyl-9-(10-phenylanthracen-9-yl)-7H-fluoreno[4,3-b]benzofuran in the emitting layer showed the highest external quantum efficiency (EQE) value, 3.10%. It also showed the maximum luminance efficiency of 2.41 cd/A and maximum power efficiency of 1.90 lm

APA, Harvard, Vancouver, ISO, and other styles

37

Mikalainis, Povilas, Jonas Sidaravičius, and Vytautas Turla. "THE INFLUENCE OF FORMULATING A DAMPING SOLUTION ON DOT GAIN." Mokslas - Lietuvos ateitis 2, no. 4 (2010): 18–23. http://dx.doi.org/10.3846/mla.2010.061.

Full text

Abstract:

Difference in dot gain using various additives to the damping solution was investigated on two offset web presses. Dot gain was measured using a densitometer and calculated considering CIE L*a*b* coordinates. It was found that while using a non alcohol additive instead of the alcohol one, dot gain became smaller and printing stability was lower. Changes in dot gain depend on the ink that may vary in colours. The influence of changes in dot gain on the colour was determined. Besides, it was found that differences in colour were unacceptable in many cases.

APA, Harvard, Vancouver, ISO, and other styles

38

Chang, Qiaowen, Ke Zhang, Caixian Yan та ін. "Synthesis, Photo-Physical Properties, and Electroluminescence Characteristics of Iridium Phosphorescent Materials Based on Different β-Diketonate Ancillary Ligands". Molecules 30, № 4 (2025): 861. https://doi.org/10.3390/molecules30040861.

Full text

Abstract:

Organic light-emitting diodes (OLEDs) based on phosphorescent materials are among the most promising technologies for displays and lightings. For red-emitting heteroleptic iridium complexes (HICs), vast and major research has been focused on the design and synthesis of cyclometalated ligands, while relatively little attention has been given to ancillary ligands which also play important roles in manipulating the optoelectronic and electroluminescent properties of HICs. Seven deep red-emitting HICs were designed and synthesized by systematically modifying the alkyl groups in β-diketone-type anc

APA, Harvard, Vancouver, ISO, and other styles

39

Eyarkai Nambi, V., K. Thangavel, S. Shahir, and V. Geetha. "Evaluation of colour behavior during ripening of Banganapalli mango using CIE-Lab and RGB colour coordinates." Journal of Applied Horticulture 17, no. 03 (2015): 205–9. http://dx.doi.org/10.37855/jah.2015.v17i03.38.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Dzurenda, Ladislav, and Michal Dudiak. "Colour Change of Steamed Alder Wood Caused by UV Radiation." Drvna industrija 73, no. 3 (2022): 289–97. http://dx.doi.org/10.5552/drvind.2022.0019.

Full text

Abstract:

Alder wood (Alnus glutinosa L.) was steamed with a saturated steam-air mixture at a temperature of t = 95 °C, or saturated steam at t = 115 °C and t = 135 °C to obtain a pale brown colour, a light red-brown colour and a dark brown-grey colour. Subsequently, samples of unsteamed and steamed alder wood were irradiated with a UV lamp in a Xenotest Q-SUN Xe-3-HS after drying in order to test the colour stability of steamed alder wood. The colour change of the wood surface was evaluated by means of measured values on the coordinates of the colour space CIE L*a*b*. The results show that the surface

APA, Harvard, Vancouver, ISO, and other styles

41

Kubík, Ľubomír, Viera Kažimírová, Monika Božiková, Tomáš Giertl, and Štefan Mihina. "Correlation of the colour of straw fuel pellets to the compressive properties." Journal on Processing and Energy in Agriculture 25, no. 1 (2021): 7–12. http://dx.doi.org/10.5937/jpea25-31141.

Full text

Abstract:

The aim of the manuscript was the evaluation of the compressive properties of straw pellets in relation to the colour differences between them. Modulus of elasticity and failure strength of the pellets at the compression were determined. A testing machine Andilog Stentor 1000 (Andilog Technologies, Vitrolles, France) was employed for uniaxial compression tests. L*, a*, b* colour coordinates of CIE LAB 3D colour space were used for the characterization of the pellet's colour. Two sorts of pellets were measured: made from wheat straw and made from the mixed wheat and barley straw. Samples were m

APA, Harvard, Vancouver, ISO, and other styles

42

Jayabharathi, Jayaraman, Ramaiyan Ramya, Venugopal Thanikachalam, Palanivel Jeeva, and Elayaperumal Sarojpurani. "Efficient full-colour organic light-emitting diodes based on donor–acceptor electroluminescent materials with a reduced singlet–triplet splitting energy gap." RSC Advances 9, no. 6 (2019): 2948–66. http://dx.doi.org/10.1039/c8ra09486a.

Full text

Abstract:

The Cz-DEPVI device showed high efficiencies of L: 13955 cd m<sup>−2</sup>, η<sub>ex</sub>: 4.90%, η<sub>c</sub>: 6.0 cd A<sup>−1</sup>, η<sub>p</sub>: 5.4 lm W<sup>−1</sup> and CIE coordinates of (0.15, 0.06) at 2.8 V.

APA, Harvard, Vancouver, ISO, and other styles

43

Chełpiński, Piotr, Ireneusz Ochmian, and Paweł Forczmański. "Sweet Cherry Skin Colour Measurement as an Non-Destructive Indicator of Fruit Maturity." Acta Universitatis Cibiniensis. Series E: Food Technology 23, no. 2 (2019): 157–66. http://dx.doi.org/10.2478/aucft-2019-0019.

Full text

Abstract:

Abstract Colour measurement is one of the methods used to evaluate food quality. Aim of completed research was the evaluation of a fast and non-destructive method which consisted of assessing colour changes. It was used to determine the ripeness of cherries during their harvest. Additionally, the most significant parameter determining fruit ripeness was identified. Colour measurements of the Burlat cherry on the PHL A rootstocks were supposed to provide standards for practical evaluation of fruit ripeness of this species at an orchard. During the research, the measurements concerned the intern

APA, Harvard, Vancouver, ISO, and other styles

44

Budak, Vladimir P., and Ruzana А. Delyan. "Changing MacAdam Ellipses with Adaptation." Light & Engineering, no. 04-2023 (August 2023): 14–18. http://dx.doi.org/10.33383/2022-102.

Full text

Abstract:

Modern light sources (light emitting diodes, organic light emitting diodes) have considerable flexibility in creating a wide range of colours and brightness of lighting devices and monitors in which they are used. Evaluation of the homogeneity of the chromaticity of radiation is carried out using the colour thresholds obtained in the McAdam experiment and named after their shape McAdam ellipses. This experiment was carried out under the same observation conditions. Their application in practice is limited and requires research in a wide range of observation conditions. To date, in colorimetry,

APA, Harvard, Vancouver, ISO, and other styles

45

Li, Jie, Jincheng Zhang, Heqi Gong, Li Tao, Yanqing Wang, and Qiang Guo. "Efficient Deep-Blue Electroluminescence Employing Heptazine-Based Thermally Activated Delayed Fluorescence." Photonics 8, no. 8 (2021): 293. http://dx.doi.org/10.3390/photonics8080293.

Full text

Abstract:

We report an efficient deep-blue organic light-emitting diode (OLED) based on a heptazine-based thermally activated delayed fluorescent (TADF) emitter, 2,5,8-tris(diphenylamine)-tri-s-triazine (HAP-3DPA). The deep-blue-emitting compound, HAP-3DPA, was designed and synthesized by combining the relatively rigid electron-accepting heptazine core with three electron-donating diphenylamine units. Due to the rigid molecular structure and intramolecular charge transfer characteristics, HAP-3DPA in solid state presented a high photoluminescence quantum yield of 67.0% and obvious TADF nature with a sho

APA, Harvard, Vancouver, ISO, and other styles

46

Kirk, Richard A. "Chromaticity coordinates for graphic arts based on CIE 2006 LMS with even spacing of Munsell colours." Color and Imaging Conference 2019, no. 1 (2019): 215–19. http://dx.doi.org/10.2352/issn.2169-2629.2019.27.38.

Full text

Abstract:

We construct redness-greenness (r,g) coordinates to fit the spectral locus into a triangle in the normalised CIE 2006 LMS plane. The reflection spectra for the Munsell patches for blackbody illuminants from 5000 to 6500 K appear as near circles in this space, suggesting that equal steps in (r,g) space may correspond to equal perceived colour contrasts within the gamut of reflective colours. We fit a matrix to convert from XYZ to LMS for reflective colours.

APA, Harvard, Vancouver, ISO, and other styles

47

Al-Asbahi, Bandar Ali, Mohamad S. AlSalhi, Mohammad Hafizuddin Hj Jumali, et al. "Conjugated Polymers-Based Ternary Hybrid toward Unique Photophysical Properties." Molecules 27, no. 20 (2022): 7011. http://dx.doi.org/10.3390/molecules27207011.

Full text

Abstract:

The improvement of optical and optoelectronic properties of the individual poly [2-methoxy-5- (2-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV), poly[2-methoxy-5-(3,7-dimethyl-octyloxy)-1,4-phenylenevinylene]–End capped with Dimethyl phenyl (OC1C10–PPV–DMP), and poly (9,9′-di- n -octylfluorenyl-2,7-diyl) (F8) was revealed by blending them in ternary hybrid with optimal ratio (F8/2 wt.% MEH-PPV/2 wt.% OC1C10–PPV–DMP). All individual and optimal ternary solutions were prepared via the solution-blending method followed by depositing them onto glass and ITO substrates using spin-coating technique

APA, Harvard, Vancouver, ISO, and other styles

48

GODOVČIN, PETER, JOZEF MARTINKA, PETER RANTUCH, et al. "IMPACT OF TEMPERATURE AND ULTRAVIOLET RADIATION ON CHANGES OF COLOUR OF FIR AND SPRUCE WOOD." WOOD RESEARCH 67(6) 2022 67, no. 6 (2022): 894–907. http://dx.doi.org/10.37763/wr.1336-4561/67.6.894907.

Full text

Abstract:

This study deals with the investigation of impact of temperature and ultraviolet (UV) radiation on spruce wood (Picea abies(L.) H. Karst.) and fir wood (Abies albaMill.) colour changes. Samples of investigated woods species were loaded by temperatures of 110, 130, and 150°C and UV radiation (with 253.7 nm wavelength and 40 W m-2intensity) during 72, 168, 336 and 672 hours. Colour changes were evaluated in the CIE Lab colour space. Theneural network for prediction of both colour coordinates and total colour difference of spruce and fir wood was trained by data regarding exposure conditions (tem

APA, Harvard, Vancouver, ISO, and other styles

49

Li, Qizheng, Feiyan Zhang, Xiaoke Jin, and Chengyan Zhu. "Optimal yarn colour combination for full-colour fabric design and mixed-colour chromaticity coordinates based on CIE chromaticity diagram analysis." Coloration Technology 130, no. 6 (2014): 437–44. http://dx.doi.org/10.1111/cote.12117.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

DZURENDA, LADISLAV. "The effect of UV radiation in Xenotest 450 on the colour of steamed beech wood during the process of simulated ageing." Annals of WULS, Forestry and Wood Technology 106 (January 15, 2019): 114–20. http://dx.doi.org/10.5604/01.3001.0013.7746.

Full text

Abstract:

The effect of UV radiation in Xenotest 450 on the colour of steamed beech wood during the process of simulated ageing .The aim of the paper is to present the changes in colour of steamed beech wood in the pocess of simulated ageing in Xenotest 450. Red-brown colour of beech wood with the coordinates of L* = 62.6 ± 2.8; a* = 10.9 ± 2.3; b* = 17.1 ± 1.3 in the CIE L*a*b* colour space resulted from the mode of colour modification of wood with saturated vapour with the temperature of t = 120 ± 2 oC for τ = 6.5 hours. The surface of samples after drying to the moisture content of w = 12 % and plani

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!