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Journal articles on the topic 'Phosphorescence Emitters'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 September 2023

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1

Wang, Shuai, Zhiqiang Cheng, Xianchao Han, et al. "Efficient and tunable purely organic room temperature phosphorescence films from selenium-containing emitters achieved by structural isomerism." Journal of Materials Chemistry C 10, no. 13 (2022): 5141–46. http://dx.doi.org/10.1039/d2tc00337f.

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The organic emitters based on 9H-selenoxanthen-9-one can realize fluorescent-to-phosphorescent transformation at room temperature by structural isomerism, and the room temperature phosphorescence quantum yield of the doped film is up to 66.7%.

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2

Lee, Dong Ryun, Si Hyun Han, and Jun Yeob Lee. "Metal-free and purely organic phosphorescent light-emitting diodes using phosphorescence harvesting hosts and organic phosphorescent emitters." Journal of Materials Chemistry C 7, no. 37 (2019): 11500–11506. http://dx.doi.org/10.1039/c9tc03203g.

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3

Guo, Yujie, Lingyu Zhang, and Zexing Qu. "Benchmark Study on Phosphorescence Energies of Anthraquinone Compounds: Comparison between TDDFT and UDFT." Molecules 28, no. 7 (2023): 3257. http://dx.doi.org/10.3390/molecules28073257.

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Phosphorescent material is widely used in light-emitting devices and in the monitoring of cell phenomena. Anthraquinone compounds (AQs), as important phosphorescent materials, have potential applications as emitters for highly efficient organic light-emitting diodes (OLEDs). Therefore, the accurate calculation of the phosphorescence energy of anthraquinone compounds is particularly important. This study mainly analyzes the phosphorescence energy calculation method of anthraquinone compounds. The time-dependent density functional theory (TDDFT) and the unrestricted density functional theory (UD

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4

Shu, Haiyang, Liang Chen, Xiaofu Wu, et al. "Persistent room temperature phosphorescence films based on star-shaped organic emitters." Journal of Materials Chemistry C 10, no. 5 (2022): 1833–38. http://dx.doi.org/10.1039/d1tc05367a.

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Metal-free star-shaped organic luminogens exhibit persistent phosphorescence in neat films with phosphorescence lifetime up to 166 ms under ambient conditions, which can be used in information encryption and white electroluminescent devices.

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5

Miao, Yanqin, Kexiang Wang, Bo Zhao, et al. "High-efficiency/CRI/color stability warm white organic light-emitting diodes by incorporating ultrathin phosphorescence layers in a blue fluorescence layer." Nanophotonics 7, no. 1 (2018): 295–304. http://dx.doi.org/10.1515/nanoph-2017-0021.

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AbstractBy incorporating ultrathin (<0.1 nm) green, yellow, and red phosphorescence layers with different sequence arrangements in a blue fluorescence layer, four unique and simplified fluorescence/phosphorescence (F/P) hybrid, white organic light-emitting diodes (WOLEDs) were obtained. All four devices realize good warm white light emission, with high color rending index (CRI) of >80, low correlated color temperature of <3600 K, and high color stability at a wide voltage range of 5 V–9 V. These hybrid WOLEDs also reveal high forward-viewing external quantum efficiencies (EQE) of 17.8

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6

Huang, Rongjuan, Jonathan S. Ward, Nadzeya A. Kukhta, et al. "The influence of molecular conformation on the photophysics of organic room temperature phosphorescent luminophores." Journal of Materials Chemistry C 6, no. 34 (2018): 9238–47. http://dx.doi.org/10.1039/c8tc02987c.

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7

Wu, Yong, Guo-Gang Shan, Hai-Bin Li, et al. "Theoretical study and design of multifunctional phosphorescent platinum(ii) complexes containing triarylboron moieties for efficient OLED emitters." Physical Chemistry Chemical Physics 17, no. 4 (2015): 2438–46. http://dx.doi.org/10.1039/c4cp04919e.

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8

Hayduk, Matthias, Steffen Riebe, and Jens Voskuhl. "Phosphorescence Through Hindered Motion of Pure Organic Emitters." Chemistry - A European Journal 24, no. 47 (2018): 12221–30. http://dx.doi.org/10.1002/chem.201800521.

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9

Akhigbe, Joshua, Michael Luciano, Adewole O. Atoyebi, Steffen Jockusch, and Christian Brückner. "Quinoline-annulated porphyrin platinum complexes as NIR emitters." Journal of Porphyrins and Phthalocyanines 24, no. 01n03 (2020): 386–93. http://dx.doi.org/10.1142/s1088424619501256.

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The platinum(II) complexes of known quinoline-annulated porphyrins were prepared and spectroscopically characterized. Their optical properties (UV-vis absorption and phosphorescence spectra and phosphorescence lifetimes) were recorded and contrasted against their 2,3-dioxoporphyrin precursor platinum(II) complex. The absorbance and emission spectra (in EtOH glass at 77 K) of the quinoline-annulated porphyrins fall within the NIR optical window of tissue, ranging, depending on the derivative, between [Formula: see text]950 and 1200 nm. The much red-shifted optical spectra, when compared to thei

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10

Ko, Ik Jang, Hyuna Lee, Jin Hwan Park, et al. "An accurate measurement of the dipole orientation in various organic semiconductor films using photoluminescence exciton decay analysis." Physical Chemistry Chemical Physics 21, no. 13 (2019): 7083–89. http://dx.doi.org/10.1039/c9cp00965e.

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In this study, we report an accurate and more reliable approach to estimate the dipole orientation of emitters especially phosphorescence, fluorescence and even thermally activated delayed fluorescence.

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11

Bhattacharjee, Indranil, Nirmalya Acharya, and Debdas Ray. "Thermally activated delayed fluorescence and room-temperature phosphorescence in naphthyl appended carbazole–quinoline conjugates, and their mechanical regulation." Chemical Communications 55, no. 13 (2019): 1899–902. http://dx.doi.org/10.1039/c8cc09220f.

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12

Nitsch, Jörn, Frederick Lacemon, Andreas Lorbach, Antonius Eichhorn, Federico Cisnetti, and Andreas Steffen. "Cuprophilic interactions in highly luminescent dicopper(i)–NHC–picolyl complexes – fast phosphorescence or TADF?" Chemical Communications 52, no. 14 (2016): 2932–35. http://dx.doi.org/10.1039/c5cc09659f.

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Cuprophilic interactions can greatly enhance the radiative rate constants via either exceptionally fast phosphorescence or TADF, and thus present a design motif for highly efficient Cu<sup>I</sup>-based emitters.

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13

Zhao, Ancong, Xiulan Wu, Xin Jiang, Jingran Gao, Jian Wang, and Wei Shen. "Unveiling the mechanisms of organic room-temperature phosphorescence in various surrounding environments: a computational study." Physical Chemistry Chemical Physics 23, no. 47 (2021): 26813–21. http://dx.doi.org/10.1039/d1cp03010h.

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Room-temperature phosphorescence from pure organic molecules is explored in detail to unveil the influence of diverse environments (solution, crystal, and amorphous phase) and provide a good understanding of metal-free organic RTP emitters.

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14

Kritchenkov, Ilya S., Anastasia I. Solomatina, Daria O. Kozina, et al. "Biocompatible Ir(III) Complexes as Oxygen Sensors for Phosphorescence Lifetime Imaging." Molecules 26, no. 10 (2021): 2898. http://dx.doi.org/10.3390/molecules26102898.

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Synthesis of biocompatible near infrared phosphorescent complexes and their application in bioimaging as triplet oxygen sensors in live systems are still challenging areas of organometallic chemistry. We have designed and synthetized four novel iridium [Ir(N^C)2(N^N)]+ complexes (N^C–benzothienyl-phenanthridine based cyclometalated ligand; N^N–pyridin-phenanthroimidazol diimine chelate), decorated with oligo(ethylene glycol) groups to impart these emitters’ solubility in aqueous media, biocompatibility, and to shield them from interaction with bio-environment. These substances were fully chara

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15

Salas Redondo, Caterin, Paul Kleine, Karla Roszeitis, et al. "Interplay of Fluorescence and Phosphorescence in Organic Biluminescent Emitters." Journal of Physical Chemistry C 121, no. 27 (2017): 14946–53. http://dx.doi.org/10.1021/acs.jpcc.7b04529.

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16

Shizu, Katsuyuki, Jiyoung Lee, Hiroyuki Tanaka, et al. "Highly efficient electroluminescence from purely organic donor–acceptor systems." Pure and Applied Chemistry 87, no. 7 (2015): 627–38. http://dx.doi.org/10.1515/pac-2015-0301.

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AbstractThermally activated delayed fluorescence (TADF) emitters are third-generation electroluminescent materials that realize highly efficient organic light-emitting diodes (OLEDs) without using rare metals. Here, after briefly reviewing the principles of TADF and its use in OLEDs, we report a sky-blue TADF emitter, 9-(4-(benzo[d]thiazol-2-yl)phenyl)-N3,N3,N6,N6-tetraphenyl-9H-carbazole-3,6-diamine (DAC-BTZ). DAC-BTZ is a purely organic donor–acceptor-type molecule with a small energy difference between its lowest excited singlet state and lowest triplet state of 0.18–0.22 eV according to fl

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17

Farias, Giliandro, Cristian A. M. Salla, Jéssica Toigo, et al. "Enhancing the phosphorescence decay pathway of Cu(i) emitters – the role of copper–iodide moiety." Dalton Transactions 51, no. 3 (2022): 1008–18. http://dx.doi.org/10.1039/d1dt03912a.

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18

Zhang, Shuai, Yanling Si, and Zhijian Wu. "Theoretical study on the effect of different substituents on the electronic structures and photophysical properties of phosphorescent Ir(iii) complexes." RSC Adv. 4, no. 31 (2014): 15849–55. http://dx.doi.org/10.1039/c4ra00436a.

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The high quantum yield of 1 compared to 4 is explained by the S<sub>1</sub>–T<sub>1</sub> splitting energy, the transition dipole moment and the energy gap between <sup>3</sup>MLCT/π–π* and <sup>3</sup>MC d–d states. Complexes 2 and 3 are expected to be the potential phosphorescence emitters in OLEDs with high quantum efficiency.

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19

Kalinowski, J., J. Mȩżyk, F. Meinardi, R. Tubino, M. Cocchi, and D. Virgili. "Phosphorescence response to excitonic interactions in Ir organic complex-based electrophosphorescent emitters." Journal of Applied Physics 98, no. 6 (2005): 063532. http://dx.doi.org/10.1063/1.2060955.

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20

Першукевич, П. П., Д. И. Волкович, Е. А. Макарова, Е. А. Лукьянец та К. Н. Соловьёв. "Люминесценция Pd и Pt бензогидропорфиразинов в ближнем ИК диапазоне". Журнал технической физики 128, № 11 (2020): 1657. http://dx.doi.org/10.21883/os.2020.11.50169.119-20.

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Phosphorescence in the near-IR range under stationary lamp excitation was studied of three palladium and three platinum complexes of benzocondensed hydroporphyrazine phthalocyanine analogues in which molecule one or two isoindole fragments are replaced by a hydrogenated pyrrole ring, giving macrocycles of photosynthetic pigments analogues of chlorin, bacteriochlorin and isobacteriochlorin types. For the first time, the phosphorescence spectra of trans-dibenzotetrahydroporphyrazines (for both platinum and palladium) have been registered, which detection failed during long time due to the record

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21

Higginbotham, Heather F., Marc K. Etherington, and Andrew P. Monkman. "Fluorescence and Phosphorescence Anisotropy from Oriented Films of Thermally Activated Delayed Fluorescence Emitters." Journal of Physical Chemistry Letters 8, no. 13 (2017): 2930–35. http://dx.doi.org/10.1021/acs.jpclett.7b00729.

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22

Thomas, Heidi, Dominik L. Pastoetter, Max Gmelch, et al. "Aromatic Phosphonates: A Novel Group of Emitters Showing Blue Ultralong Room Temperature Phosphorescence." Advanced Materials 32, no. 19 (2020): 2000880. http://dx.doi.org/10.1002/adma.202000880.

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23

Malpicci, Daniele, Clelia Giannini, Elena Lucenti, Alessandra Forni, Daniele Marinotto, and Elena Cariati. "Mono-, Di-, Tri-Pyrene Substituted Cyclic Triimidazole: A Family of Highly Emissive and RTP Chromophores." Photochem 1, no. 3 (2021): 477–87. http://dx.doi.org/10.3390/photochem1030031.

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The search of new organic emitters is receiving a strong motivation by the development of ORTP materials. In the present study we report on the preparation, optical and photophysical characterization, by both steady state and time resolved techniques, of two pyrene-functionalized cyclic triimidazole derivatives. Together with the already reported mono-substituted derivative, the di- and tri-substituted members of the family have revealed as intriguing emitters characterized by impressive quantum yields in solution and RTP properties in the solid state. In particular, phosphorescence lifetimes

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24

Zhang, Liang, Meng Li, Tai-Ping Hu, et al. "Phthalimide-based “D–N–A” emitters with thermally activated delayed fluorescence and isomer-dependent room-temperature phosphorescence properties." Chemical Communications 55, no. 81 (2019): 12172–75. http://dx.doi.org/10.1039/c9cc06384f.

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25

Bui, Thanh-Tuân, Fabrice Goubard, Malika Ibrahim-Ouali, Didier Gigmes, and Frédéric Dumur. "Recent advances on organic blue thermally activated delayed fluorescence (TADF) emitters for organic light-emitting diodes (OLEDs)." Beilstein Journal of Organic Chemistry 14 (January 30, 2018): 282–308. http://dx.doi.org/10.3762/bjoc.14.18.

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The design of highly emissive and stable blue emitters for organic light emitting diodes (OLEDs) is still a challenge, justifying the intense research activity of the scientific community in this field. Recently, a great deal of interest has been devoted to the elaboration of emitters exhibiting a thermally activated delayed fluorescence (TADF). By a specific molecular design consisting into a minimal overlap between the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) due to a spatial separation of the electron-donating and the electron-releasing pa

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26

Liu, Lei, Dongyu Zhang, Tao Chu, et al. "Inkjet printed organic light-emitting diodes employing organometal-halide perovskite as hole transport layer." Journal of Physics D: Applied Physics 55, no. 10 (2021): 105101. http://dx.doi.org/10.1088/1361-6463/ac3b0f.

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Abstract Due to their narrow spectrum and high photoluminescence quantum yield, organic-inorganic hybrid perovskite materials have become an important emitter for light-emitting diodes (LED). In addition to the perovskite emitters, other perovskite materials such as methyl lead ammonium chloride (MAPbCl3) with high charge mobility can potentially be used as excellent charge transport materials. In this work, phosphorescence LED devices in which MAPbCl3 was employed as hole transport layer (HTL) was designed and fabricated by inkjet printing (IJP) process. Ethanolamine was added to the poly(3,4

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27

Kim, Inkoo, Won-Joon Son, Youn-Suk Choi, et al. "Predicting Phosphorescence Quantum Yield for Pt(II)-Based OLED Emitters from Correlation Function Approach." Journal of Physical Chemistry C 123, no. 17 (2019): 11140–50. http://dx.doi.org/10.1021/acs.jpcc.9b02031.

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28

von Arx, Tobias, Alexander Szentkuti, Thomas N. Zehnder, Olivier Blacque, and Koushik Venkatesan. "Stable N-heterocyclic carbene (NHC) cyclometalated (C^C) gold(iii) complexes as blue–blue green phosphorescence emitters." Journal of Materials Chemistry C 5, no. 15 (2017): 3765–69. http://dx.doi.org/10.1039/c6tc05551f.

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29

Tang, Shan‐Shun, Guo‐Xi Yang, Jie‐Ji Zhu, et al. "Multifunctional Materials Serving as Efficient Non‐Doped Violet‐Blue Emitters and Host Materials for Phosphorescence." Chemistry – A European Journal 27, no. 35 (2021): 9102–11. http://dx.doi.org/10.1002/chem.202100717.

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30

Zobel, J. Patrick, Hanna Radatz, and Leticia González. "Photodynamics of the Molecular Ruby [Cr(ddpd)2]3+." Molecules 28, no. 4 (2023): 1668. http://dx.doi.org/10.3390/molecules28041668.

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The introduction of strong-field ligands can enable luminescence in first-row transition-metal complexes. In this way, earth-abundant near-infrared emitters can be obtained using early 3d metals. A prime example is the molecular ruby [Cr(ddpd)2]3+ (ddpd = N,N′-dimethyl-N,N′-dipyridin-2-ylpyridine-2,6-diamine) that can achieve high phosphorescence quantum yields at room temperature in aqueous solution. To understand these remarkable properties, here, we simulate its photodynamics in water using trajectory surface hopping on linear vibronic coupling potentials parametrized from multiconfiguratio

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31

Liu, Hong-Wei, Inamur R. Laskar, Chin-Ping Huang, et al. "Enhanced phosphorescence and electroluminescence in triplet emitters by doping gold into cadmium selenide/zinc sulfide nanoparticles." Thin Solid Films 489, no. 1-2 (2005): 296–302. http://dx.doi.org/10.1016/j.tsf.2005.04.094.

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32

Rebollar, Esther, Jorge Bañuelos, Santiago de la Moya, Julien Eng, Thomas Penfold, and Inmaculada Garcia-Moreno. "A Computational-Experimental Approach to Unravel the Excited State Landscape in Heavy-Atom Free BODIPY-Related Dyes." Molecules 27, no. 15 (2022): 4683. http://dx.doi.org/10.3390/molecules27154683.

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We performed a time-gated laser-spectroscopy study in a set of heavy-atom free single BODIPY fluorophores, supported by accurate, excited-state computational simulations of the key low-lying excited states in these chromophores. Despite the strong fluorescence of these emitters, we observed a significant fraction of time-delayed (microseconds scale) emission associated with processes that involved passage through the triplet manifold. The accuracy of the predictions of the energy arrangement and electronic nature of the low-lying singlet and triplet excited states meant that an unambiguous ass

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33

Vogler, Arnd. "Nickel(II) complexes as triplet emitters? IL phosphorescence of Ni(II)(binap)Cl 2 under ambient conditions." Inorganic Chemistry Communications 65 (March 2016): 39–40. http://dx.doi.org/10.1016/j.inoche.2016.01.008.

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34

Arakawa, Etsuo, Wolfgang Voegeli, Chika Kamezawa, et al. "Gemstones and Salts as Light Emitters for Learning X-ray Detectors." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C1818. http://dx.doi.org/10.1107/s2053273314081820.

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The scintillation counter is a widely-used X-ray detector. It contains a scintillator as a luminescent material that converts X-rays into visible light, which is detected with a sensor. A well-known scintillator in the X-ray region is sodium iodide, NaI, an ionic crystal. Before use, it is important to understand how the detector works. For students, the material name and the chemical formula of the scintillator are not familiar, however. In addition, students cannot watch or touch the key element in the detector, because the scintillator is installed inside the housing. Many jewels emit visib

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35

Xiao, Zhengqi, Nengquan Li, Wei Yang, et al. "Saccharin-derived multifunctional emitters featuring concurrently room temperature phosphorescence, thermally activated delayed fluorescence and aggregation-induced enhanced emission." Chemical Engineering Journal 419 (September 2021): 129628. http://dx.doi.org/10.1016/j.cej.2021.129628.

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36

Paredis, Simon, Tom Cardeynaels, Jasper Deckers, et al. "Bridge control of photophysical properties in benzothiazole-phenoxazine emitters – from thermally activated delayed fluorescence to room temperature phosphorescence." Journal of Materials Chemistry C 10, no. 12 (2022): 4775–84. http://dx.doi.org/10.1039/d1tc04885f.

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37

Evans, Rachel C., Peter Douglas, and Christopher J. Winscom. "Coordination complexes exhibiting room-temperature phosphorescence: Evaluation of their suitability as triplet emitters in organic light emitting diodes." Coordination Chemistry Reviews 250, no. 15-16 (2006): 2093–126. http://dx.doi.org/10.1016/j.ccr.2006.02.007.

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38

Mao, Meng-Xi, Fang-Ling Li, Yan Shen, et al. "Simple Synthesis of Red Iridium(III) Complexes with Sulfur-Contained Four-Membered Ancillary Ligands for OLEDs." Molecules 26, no. 9 (2021): 2599. http://dx.doi.org/10.3390/molecules26092599.

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Phosphorescent iridium(III) complexes have been widely researched for the fabrication of efficient organic light-emitting diodes (OLEDs). In this work, three red Ir(III) complexes named Ir-1, Ir-2, and Ir-3, with Ir-S-C-S four-membered framework rings, were synthesized efficiently at room temperature within 5 min using sulfur-containing ancillary ligands with electron-donating groups of 9,10-dihydro-9,9-dimethylacridine, phenoxazine, and phenothiazine, respectively. Due to the same main ligand of 4-(4-(trifluoromethyl)phenyl)quinazoline, all Ir(III) complexes showed similar photoluminescence e

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39

Ryu, Chan Hee, Un Hyeok Jo, Jun Yeob Lee, and Kang Mun Lee. "P‐111: Tetradentate Ligand‐Based Novel Platinum(II) Complex and Its Outstanding Performance in Blue Phosphorescent Organic Light‐Emitting Diodes." SID Symposium Digest of Technical Papers 54, no. 1 (2023): 1275–78. http://dx.doi.org/10.1002/sdtp.16812.

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Even though the remarkable growth of the organic light‐emitting diode (OLED) industry has occurred via continuous, extensive efforts toward the utilization of various organometallic luminophores as phosphorescent emitters, the development of blue phosphorescent emitters with improved efficiencies and high electrochemical stabilities is essential. To satisfy this, developing emitter featuring a narrow full width at half maximum (FWHM) is necessary. We herein designed and preparation of a novel tetradentate Pt(II) complex, Pt3, and its application as blue phosphorescent emitters in OLED devices.

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40

Ivanova, Anna A., Victoria E. Gontcharenko, Alexey M. Lunev, et al. "New Carboxylate Anionic Sm-MOF: Synthesis, Structure and Effect of the Isomorphic Substitution of Sm3+ with Gd3+ and Tb3+ Ions on the Luminescent Properties." Inorganics 10, no. 8 (2022): 104. http://dx.doi.org/10.3390/inorganics10080104.

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Two new compounds, namely {(NMe2H2)}[Ln(TDA)(HCOO)] 0.5H2O, Ln = Sm3+ (Sm-TDA) and Gd3+ (Gd-TDA), where TDA3− is the anion of 1H-1,2,3-triazole-4,5-dicarboxylic acid (H3TDA), were synthesized by the solvothermal method in a DMF:H2O mixture. According to single-crystal X-ray diffraction data, the compounds are 3d-MOFs with an anionic lattice and dimethylammonium cations occupying part of the cavities. Based on these compounds, two series of mixed-metal complexes, [NMe2H2][SmxLn1-x(TDA)(HCOO)], (x = 0.9 (Sm0.9Ln0.1-TDA), x = 0.8 (Sm0.8-Ln0.2-TDA)…Sm0.02Ln0.98-TDA, Ln = Tb, Gd), were also obtaine

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41

Sun, Yiping, Hongmei Qu, Jiacai Zhang, Xingyu Duan, and Xiaokun Zhang. "Room temperature phosphorescence, thermally activated delayed fluorescence and multicolor mechanochromic luminescence of emitters through molecular interaction and conformational modulations." Tetrahedron 110 (March 2022): 132692. http://dx.doi.org/10.1016/j.tet.2022.132692.

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42

Kukhta, Nadzeya A., Rongjuan Huang, Andrei S. Batsanov, Martin R. Bryce, and Fernando B. Dias. "Achieving Conformational Control in Room-Temperature Phosphorescence and Thermally Activated Delayed Fluorescence Emitters by Functionalization of the Central Core." Journal of Physical Chemistry C 123, no. 43 (2019): 26536–46. http://dx.doi.org/10.1021/acs.jpcc.9b08238.

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43

Xie, Gaozhan, Jiangchao Wang, Xudong Xue, et al. "Achieving low driving voltage and high-efficiency afterglow organic light-emitting diodes through host–guest doping." Applied Physics Reviews 9, no. 3 (2022): 031410. http://dx.doi.org/10.1063/5.0093704.

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Achieving afterglow organic light-emitting diodes (OLEDs) that exhibit the organic ultralong room temperature phosphorescence (OURTP) emission after switching off the applied voltage is highly attractive. However, it is difficult to obtain appropriate emitting layers that are of excellent charge transport ability and OURTP properties simultaneously to fabricate highly efficient afterglow OLEDs. Here, we report an easy but effective strategy to construct afterglow OLEDs via host–guest doping by adopting the excellent carrier transporting materials as rigid host and the commendable OURTP emitter

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44

Gu, Yuhan, Shigang Wan, Qing Liu, and Changqing Ye. "Luminescent Materials for Volumetric Three-Dimensional Displays Based on Photoactivated Phosphorescence." Polymers 15, no. 9 (2023): 2004. http://dx.doi.org/10.3390/polym15092004.

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True three-dimensional (3D) displays are the best display technologies and their breakthrough is primarily due to advancements in display media. In this paper, we propose two luminescent materials for a static volumetric 3D display based on photoactivated phosphorescence. The luminescent materials include (1) dimethyl sulfoxide (DMSO)/1-methyl-2-pyrrolidinone (NMP) or tetramethylene sulfoxide (TMSO) as the solvent and photochemically-deoxygenating reagent; (2) a metal phthalocyanine complex as the sensitizer; (3) a phosphorescent platinum complex as the emitter. The metal phthalocyanine comple

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45

Albrecht, Ken. "(Invited) Development of Highly Luminescent Radical Core Carbazole Dendrimer." ECS Meeting Abstracts MA2022-01, no. 13 (2022): 895. http://dx.doi.org/10.1149/ma2022-0113895mtgabs.

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The development of emitting materials for OLEDs has started with fluorescence, moved to phosphorescence, and reached TADF. These materials have singlet ground state, but recently some ground state doublet (radical) emitting materials have been reported.1,2 The excited state of doublet emitters also has a doublet character, and theoretically, can achieve 100% exciton utilization efficiency in an OLED device. Triphenylmethyl radicals such as PTM (perchlorotriphenylmethyl) radical were recognized as emitters from the 1980s. The photostability of these radicals are extremely low, but in 2006 the i

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Ono, Toshikazu, Kazuki Kimura, Megumi Ihara, et al. "Room‐Temperature Phosphorescence Emitters Exhibiting Red to Near‐Infrared Emission Derived from Intermolecular Charge‐Transfer Triplet States of Naphthalenediimide−Halobenzoate Triad Molecules." Chemistry – A European Journal 27, no. 37 (2021): 9535–41. http://dx.doi.org/10.1002/chem.202100906.

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Ono, Toshikazu, Kazuki Kimura, Megumi Ihara, et al. "Room‐Temperature Phosphorescence Emitters Exhibiting Red to Near‐Infrared Emission Derived from Intermolecular Charge‐Transfer Triplet States of Naphthalenediimide–Halobenzoate Triad Molecules." Chemistry – A European Journal 27, no. 37 (2021): 9465. http://dx.doi.org/10.1002/chem.202101685.

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Kang, Guo-Jun, Xue-Feng Ren, and Qiong-Qiong He. "Theoretical study on effect of thiophene substitution on the structure and phosphorescence quantum yields of red-emitting iridium(III) emitters in OLEDs." Journal of Photochemistry and Photobiology A: Chemistry 319-320 (March 2016): 25–33. http://dx.doi.org/10.1016/j.jphotochem.2015.12.013.

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Sanz-Rodrigo, Javier, Yoann Olivier, and Juan-Carlos Sancho-García. "Computational Studies of Molecular Materials for Unconventional Energy Conversion: The Challenge of Light Emission by Thermally Activated Delayed Fluorescence." Molecules 25, no. 4 (2020): 1006. http://dx.doi.org/10.3390/molecules25041006.

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In this paper we describe the mechanism of light emission through thermally activated delayed fluorescence (TADF)—a process able to ideally achieve 100% quantum efficiencies upon fully harvesting the energy of triplet excitons, and thus minimizing the energy loss of common (i.e., fluorescence and phosphorescence) luminescence processes. If successful, this technology could be exploited for the manufacture of more efficient organic light-emitting diodes (OLEDs) made of only light elements for multiple daily applications, thus contributing to the rise of a sustainable electronic industry and ene

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Sivasubramaniam, Varatharajan, Florian Brodkorb, Stephanie Hanning, et al. "Investigation of FIrpic in PhOLEDs via LC/MS technique." Open Chemistry 7, no. 4 (2009): 836–45. http://dx.doi.org/10.2478/s11532-009-0084-1.

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AbstractThe commercial breakthrough of phosphorescent organic white light sources is presently hampered due to the unavailability of a stable blue phosphorescent emitter material. Moreover, only few analytical investigations have been made regarding the chemical degradation of the phosphorescent emitter materials during the processing or the operation of the devices. Organic light emitting devices (OLEDs) containing phosphorescent metal complexes with iridium as central ion were investigated. Special attention was paid to the chemical degradation of the material. The devices were analyzed by m

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