Log in

Relevant bibliographies by topics / Alq / Journal articles

To see the other types of publications on this topic, follow the link: Alq.

Journal articles on the topic 'Alq'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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 'Alq.'

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

Tagaya, Motohiro, Kenji Shinozaki, and Yuri Maruko. "A Simple Incorporation Route of Tris(8-hydroxyquinoline)aluminum(III) into Transparent Mesoporous Silica Films and Their Photofunctions." Journal of Applied Chemistry 2017 (August 14, 2017): 1–10. http://dx.doi.org/10.1155/2017/7351263.

Full text

Abstract:

The molecular aggregation states of tris(8-hydroxyquinoline)aluminum(III) (Alq) adsorbed in the transparent mesoporous silica (MPS) films with the different pore sizes (3.0 and 5.4 nm) were successfully clarified. The Alq molecules were easily incorporated into the films from the solution without the segregation on the surfaces. The adsorbed amount of Alq was controlled by changing the added amount in the initial solution to resultantly give the transparent and yellow-color films. The photoluminescence spectra significantly revealed that the state of Alq molecules in the mesopore varied depending on the adsorbed amount of Alq as well as the pore size, suggesting the characteristic mobility of the adsorbed Alq molecules in the mesopores as compared with that at the bulk or solution state. Therefore, the guest-guest interactions between Alq molecules as well as the host-guest interactions between Alq and mesopore were elucidated. This finding by the use of the mesoporous film hosts will be utilized for including luminescence species and be applicable for optical devices.

APA, Harvard, Vancouver, ISO, and other styles

2

Calatayud, Richard, and Edward Szymkowiak. "Temperature and Vibration Results from Captive-Store Flight Tests Provide a Reliability Improvement Tool." Journal of the IEST 35, no. 5 (September 1, 1992): 33–38. http://dx.doi.org/10.17764/jiet.2.35.5.g03qp115w742x2u8.

Full text

Abstract:

The ALQ-131 electronic countermeasure (ECM) system has provided the United States Air Force with proven self protection for many of its tactical fighter aircraft. The reliability and maintainability improvements of the ALQ-131 Block II has produced a system with a mean time between failures (MTBF) of 120 to 180 hours and greater than 95 percent availability for the 390 systems in theater during the Persian Gulf war. None of the aircraft carrying the ALQ-131 Block II was shot down, and at least 60 percent of the ALQ-131 Block IIs never needed maintenance and stayed on the aircraft throughout the air campaign. Due to classic reliability and maintainability approaches, the ALQ-131 has reached this high standard, but improved understanding of the environment experienced by the system will provide the next steps in reliability improvements. The capture of measured response data, as detailed in this paper, will provide a basis for developing life cycle and customer warranty tests which will guarantee to the customer that the ALQ-131 system will continue to perform reliably from takeoff to landing, and from mission to mission through the life of the system.

APA, Harvard, Vancouver, ISO, and other styles

3

Ribelles, Carlos, Begoña García-Sogo, Fernando J. Yuste-Lisbona, Alejandro Atarés, Laura Castañeda, Carmen Capel, Rafael Lozano, Vicente Moreno, and Benito Pineda. "Alq mutation increases fruit set rate and allows the maintenance of fruit yield under moderate saline conditions." Journal of Experimental Botany 70, no. 20 (July 22, 2019): 5731–44. http://dx.doi.org/10.1093/jxb/erz342.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Ramar, M., Priyanka Tyagi, C. K. Suman, and Ritu Srivastava. "Enhanced carrier transport in tris(8-hydroxyquinolinate) aluminum by titanyl phthalocyanine doping." RSC Adv. 4, no. 93 (2014): 51256–61. http://dx.doi.org/10.1039/c4ra09116g.

Full text

Abstract:

The effect of doping titanyl phthalocyanine (TiOPc) into tris(8-hydroxyquinolinate) aluminum (Alq₃) (Alq₃:T; where T represents TiOPc), used as an electron transport layer (ETL) for organic light emitting diodes (OLEDs), was investigated.

APA, Harvard, Vancouver, ISO, and other styles

5

Cervo, Clarissa Socal, Jean Carlos Natividade, Lisete Dos Santos Mendes Mónico, Leonor Pais, Nuno Rebelo Dos Santos, and Claudio Simon Hutz. "Modelo de Liderança Autêntica: concepção teórica e evidências de validade do Authentic Leadership Questionnaire (ALQ) para o Brasil." Psychologica 61, no. 2 (July 1, 2018): 7–29. http://dx.doi.org/10.14195/1647-8606_61-2_1.

Full text

Abstract:

O modelo de Liderança Autêntica destaca-se entre as teorias positivas de liderança. O instrumento mais utilizado para aferir a autenticidade do líder é o Authentic Leadership Questionnaire (ALQ). No Brasil, esta medida encontra-se validada, contudo, é ainda necessário reforçar as suas evidências de validade para este país. O objetivo desta investigação é apresentar evidências adicionais de validade do ALQ para o contexto brasileiro de trabalho. Participaram no estudo profissionais líderes (N = 437) e liderados (N = 1329), de organizações da região sul do país. O ALQ foi aplicado nas versões de auto e heteroavaliação. Análises Fatoriais Confirmatórias indicam a presença dos quatro fatores do modelo de Liderança Autêntica, e há confiabilidade e validade do ALQ para as amostras brasileiras estudadas. A natureza privada das organizações impacta na percepção de autenticidade na liderança, contudo os resultados não confirmam a importância das variáveis sociodemográficas (idade, sexo, escolaridade e renda pessoal) e da dimensão da organização. Discutem-se as limitações do estudo e apresentam-se sugestões para futuras investigações.

APA, Harvard, Vancouver, ISO, and other styles

6

CHO, YONG JAI, HYUN JONG KIM, WON CHEGAL, HYUN MO CHO, UN BONG BAEK, SEUNG HOON NAHM, JEONG-IK LEE, and HYE YONG CHU. "CHARACTERIZATION OF TRIS (8-HYDROXYQUINOLINE) ALUMINUM (Alq3) FILM USING SPECTROSCOPIC ELLIPSOMETRY." International Journal of Modern Physics B 20, no. 25n27 (October 30, 2006): 4353–58. http://dx.doi.org/10.1142/s0217979206041343.

Full text

Abstract:

We have applied spectroscopic ellipsometry to obtain the optical constants, i.e., refractive indices (n) and extinction coefficients (k) of a thin tris (8-hydroxyquinoline) aluminum ( Alq 3) film evaporated on the top of 300-nm-thick SiO 2 layer on a silicon substrate. Using a spectroscopic ellipsometer we collected the ellipsometric data of Ψ and Δ at 3 incident angles of 65°, 70° and 75° and 226 energies of 1.5 eV to 6.0 eV. For the organic sample, we adopted a simple two-film model consisting of ambient/organic film/ SiO 2 film/silicon substrate. Using the multiple oscillators of Tauc-Lorentz (TL) dispersion function and the two-film model, we obtained the thickness of the Alq 3 film. By data inversion technique, the spectra of n and k for the Alq 3 film are calculated from measured Ψ and Δ at each photon energy when the film thickness is fixed to a value obtained by the TL dispersion fitting. The extrapolation of optical function near band gap yields the band gap of 2.64 eV for Alq 3 film.

APA, Harvard, Vancouver, ISO, and other styles

7

Saxe-Braithwaite, Marcy, and Sylvia Gautreau. "Authentic leadership in healthcare organizations: A study of 14 chief executive officers and 70 direct reports." Healthcare Management Forum 33, no. 3 (December 11, 2019): 140–44. http://dx.doi.org/10.1177/0840470419890634.

Full text

Abstract:

There is limited research on authentic leadership in senior leaders of healthcare organizations. The purpose of this study was to investigate authentic leadership from the perspectives of 14 healthcare Chief Executive Officers (CEOs) and 70 senior-level direct reports using the validated Authentic Leadership Questionnaire (ALQ) and one-on-one interviews. CEOs also completed a 20-hour leadership curriculum focusing on authentic leadership. Although CEOs rated themselves higher than their direct reports on the total ALQ, it only approached significance ( P = .060). Ratings on the four component parts of the ALQ were also higher, but only one was significant ( P = .025) with a trend toward significance on another ( P = .61). The CEOs’ scores were slightly higher after their self-directed study but only one component was significant ( P = .040). Interviews with the CEOs and direct reports underscore how healthcare leadership and authentic leadership specifically is viewed depending on organizational roles.

APA, Harvard, Vancouver, ISO, and other styles

8

Yu, Tony S., Vladimir Bulović, and A. E. Hosoi. "Coarsening and solidification via solvent-annealing in thin liquid films." Journal of Fluid Mechanics 723 (April 16, 2013): 69–90. http://dx.doi.org/10.1017/jfm.2013.115.

Full text

Abstract:

AbstractWe examine solidification in thin liquid films produced by annealing amorphous ${\mathrm{Alq} }_{3} $ (tris-(8-hydroxyquinoline) aluminium) in methanol vapour. Micrographs acquired during annealing capture the evolution of the film: the initially-uniform film breaks up into drops that coarsen, and single crystals of ${\mathrm{Alq} }_{3} $ nucleate randomly on the substrate and grow as slender ‘needles’. The growth of these needles appears to follow power-law behaviour, where the growth exponent, $\gamma $, depends on the thickness of the deposited ${\mathrm{Alq} }_{3} $ film. The evolution of the thin film is modelled by a lubrication equation, and an advection–diffusion equation captures the transport of ${\mathrm{Alq} }_{3} $ and methanol within the film. We define a dimensionless transport parameter, $\alpha $, which is analogous to an inverse Sherwood number and quantifies the relative effects of diffusion- and coarsening-driven advection. For large $\alpha $-values, the model recovers the theory of one-dimensional, diffusion-driven solidification, such that $\gamma \rightarrow 1/ 2$. For low $\alpha $-values, the collapse of drops, i.e. coarsening, drives flow and regulates the growth of needles. Within this regime, we identify two relevant limits: needles that are small compared to the typical drop size, and those that are large. Both scaling analysis and simulations of the full model reveal that $\gamma \rightarrow 2/ 5$ for small needles and $\gamma \rightarrow 0. 29$ for large needles.

APA, Harvard, Vancouver, ISO, and other styles

9

Aziz, Anver, and K. L. Narasimhan. "Optical Absorption in AlQ." Synthetic Metals 114, no. 2 (August 2000): 133–37. http://dx.doi.org/10.1016/s0379-6779(00)00232-0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Aziz, Anver, and K. L. Narasimhan. "Optical absorption in Alq." Synthetic Metals 122, no. 1 (May 2001): 53–54. http://dx.doi.org/10.1016/s0379-6779(00)01360-6.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

BADIEI, ALIREZA, and HASSAN GOLDOOZ. "A SIMPLE METHOD FOR PREPARATION OF FLUORESCENT NANOSTRUCTURE SILICA WITH HEXAGONAL ARRAY." International Journal of Modern Physics: Conference Series 05 (January 2012): 151–59. http://dx.doi.org/10.1142/s2010194512001961.

Full text

Abstract:

A nanostructure modified silica with good fluorescence properties was prepared by grafting Al 3+ ions on the surface of nanoporous silica and then binding of 8-hydroxyquinoline (8- HQ ) to the grafted Al 3+ ions. The prepared material, denoted as NS - AlQ 2, was characterized by scanning electron microscopy (SEM), powder X-ray diffraction (XRD), nitrogen adsorption–desorption measurements, FT-IR and fluorescence spectra. This compound shows emission spectra approximately in the emission range of AlQ 3 complex. This procedure provides a simple method for grafting fluorescent molecules in the channels of nanoporous silica materials.

APA, Harvard, Vancouver, ISO, and other styles

12

YOKOYAMA, TAKAHIRO, HISAO ISHII, YUKIO OUCHI, DAISUKE YOSHIMURA, KAZUHIKO SEKI, EISUKE ITO, and HIROSHI OJI. "THE EFFECT OF A LiF LAYER ON Al/LiF/Alq3 INTERFACES STUDIED WITH ELECTRON SPECTROSCOPIES." Surface Review and Letters 09, no. 01 (February 2002): 425–30. http://dx.doi.org/10.1142/s0218625x02002415.

Full text

Abstract:

The interface of the tris (8-hydroxyquinoline) aluminum ( Alq 3)/ LiF/Al system was investigated with ultraviolet photoelectron spectroscopy (UPS), metastable atom electron spectroscopy (MAES), and X-ray photoelectron spectroscopy (XPS). Strong chemical interaction was observed at Alq 3 on Al interface. By inserting a LiF layer, this interaction is suppressed and interface energy level alignment is changed to reduce a barrier for electron injection. The enhancement of device efficiency is ascribed to these phenomena. The importance of the combined use of various techniques on the same interface is stressed.

APA, Harvard, Vancouver, ISO, and other styles

13

Xie, Wanfeng, Hui Song, Jihui Fan, Feng Jiang, Huimin Yuan, Shiyu Zhang, Zhixian Wei, Zhiyong Pang, and Shenghao Han. "Structures and photoluminescence properties of Alq3 1D materials prepared by an extremely facile solution method." RSC Advances 5, no. 116 (2015): 95405–9. http://dx.doi.org/10.1039/c5ra22241a.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Jiang, Feng, Zhiyong Pang, Huimin Yuan, Zhixian Wei, Wanfeng Xie, Zongyong Wu, and Shenghao Han. "Room temperature ferromagnetic properties of dysprosium-doped tris(8-hydroxyquinoline) aluminum: experimental and theoretical investigation." RSC Advances 6, no. 49 (2016): 43780–85. http://dx.doi.org/10.1039/c6ra01808d.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

KIM, YUN-HI, HYUNG-SUN KIM, JUN-HWAN AHN, SUNG-HAN KIM, and SOON-KI KWON. "NOVEL BLUE ORGANIC LIGHT-EMITTING MATERIAL." Journal of Nonlinear Optical Physics & Materials 13, no. 03n04 (December 2004): 649–53. http://dx.doi.org/10.1142/s0218863504002420.

Full text

Abstract:

The blue light-emitting material was synthesized. With the non-doped, blue-emitting material in the multilayer device structure, it was possible to achieve the luminous efficiency of 3.38 cd/A at 110 mA/cm2. The EL spectrum of the ITO / CuPc / NPB / BDPSP / Alq 3/ Mg : Ag device showed a narrow emission band with full width at half maximum (FWHM) 70 nm and λ max =448.25 nm . The emitting color of the device showed the highly pure blue emission (x,y)=(0.158, 0.10) for ITO / CuPc / NPB / BDPSP / Alq 3/ Mg : Ag in CIE (Commission Internationale de l'Eclairage) chromaticity coordinates.

APA, Harvard, Vancouver, ISO, and other styles

16

Zhang, Jianfeng, Xinjun Xu, Chuang Yao, and Lidong Li. "Organic photodiodes constructed from a single radial heterojunction microwire." Journal of Materials Chemistry C 4, no. 5 (2016): 944–50. http://dx.doi.org/10.1039/c5tc03719k.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Manninen, Venla M., Juha P. Heiskanen, Kimmo M. Kaunisto, Osmo E. O. Hormi, and Helge J. Lemmetyinen. "Spectroscopic study of a synthesized Alq3 end-capped oligothiophene applied in organic solar cells." RSC Adv. 4, no. 17 (2014): 8846–55. http://dx.doi.org/10.1039/c3ra47367h.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Roof, Rick. "Authentic leadership questionnaire (ALQ) psychometrics." Asian Journal of Business Ethics 3, no. 1 (September 22, 2013): 57–64. http://dx.doi.org/10.1007/s13520-013-0031-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Chen, Lijia, Gang Wang, Lianbin Niu, Yanqing Yao, Yunxia Guan, Yuting Cui, and Qunliang Song. "High performance planar p-i-n perovskite solar cells based on a thin Alq3 cathode buffer layer." RSC Advances 8, no. 29 (2018): 15961–66. http://dx.doi.org/10.1039/c8ra01633j.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Miralles, Sara G., Amilcar Bedoya-Pinto, José J. Baldoví, Walter Cañon-Mancisidor, Yoann Prado, Helena Prima-Garcia, Alejandro Gaita-Ariño, Guillermo Mínguez Espallargas, Luis E. Hueso, and Eugenio Coronado. "Sublimable chloroquinolinate lanthanoid single-ion magnets deposited on ferromagnetic electrodes." Chemical Science 9, no. 1 (2018): 199–208. http://dx.doi.org/10.1039/c7sc03463f.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Gupta, Monika, Dong Yan, Jiannian Yao, and Chuanlang Zhan. "Improved fullerene-free polymer solar cells using a rationally designed binary mixed solution of an electron extracting layer." Materials Chemistry Frontiers 2, no. 10 (2018): 1876–83. http://dx.doi.org/10.1039/c8qm00311d.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Xu, Kai, Chaochao Lu, Yang Huang, Juntao Hu, and Xianghua Wang. "Enhanced outcoupling efficiency and removal of the microcavity effect in top-emitting OLED by using a simple vapor treated corrugated film." RSC Advances 7, no. 86 (2017): 54876–80. http://dx.doi.org/10.1039/c7ra11384f.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

YANG, KI-SUNG, HO-SIK LEE, SEUNG-UN KIM, YOON-KI JANG, DOO-SEOK KIM, HOON-KYU SHIN, YOUNG-SOO KWON, and CHUNGKYUN KIM. "ELECTRICAL AND OPTICAL PROPERTIES OF OLED USING NEW EMISSIVE MATERIAL Al2Nq4." International Journal of Nanoscience 05, no. 06 (December 2006): 859–64. http://dx.doi.org/10.1142/s0219581x06005273.

Full text

Abstract:

Since the first report of the light-emitting diodes based on Alq 3, many organic materials have been synthesized and extended efforts have been made to obtain high performance electroluminescent (EL) device. We synthesized new emissive material, 1, 4-dihydoxy-5, 8-naphtaquinone· Alq 3 complex( Al 2 Nq 4), and extended efforts have been made to obtain high-performance electroluminescent (EL) devices. Current–voltage (I–V) and luminance–voltage (L–V) characteristics were measured by Flat Panel Display Analysis System (Model 200-AT) at room temperature. The Al 2 Nq 4 shows green photoluminescence and electroluminescence spectra at about 510 nm, and ITO/Al 2 Nq 4/Cathode device shows typical rectifying characteristics.

APA, Harvard, Vancouver, ISO, and other styles

24

Ke, Feng, Qinglin Wang, Junkai Zhang, Ying Guo, Dayong Tan, Yan Li, Cailong Liu, et al. "Anomalous variation of electrical transport property and amorphization in dense Alq3." RSC Advances 5, no. 52 (2015): 41359–64. http://dx.doi.org/10.1039/c5ra01198a.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Syed, Syed Saeed, and Prof Dr Riasat Ali. "Exploring Authentic Leadership in Relation to Pedagogical Development in Public and Private Sector Universities." sjesr 2, no. 2 (December 19, 2019): 48–65. http://dx.doi.org/10.36902/sjesr-vol2-iss2-2019(48-65).

Full text

Abstract:

Abstract The study aims at to explore the authentic leadership attributes (ALA) and its impact on pedagogical development. The objectives of the study were to investigate ALA of leaders and measure relationship between ALA and pedagogical development at university level. The population of the study was 6975. The sample of the study was 967. The mixed method approach was used to collect information from sample by using modified form of ALQ developed by Walumbwa, Avolio, Gardener, Wernsing, & Peterson (2008) and interviews. Analysis was done with percentage, Mean, STD, independent sample t-test, Pearson’s rank correlation and thematic analysis. It was found that r value (.426) which was significant at .000 showed significant positive and average level correlations between ALA and pedagogical development at university level. It is suggested that followers may be involved in positive activities and be provided more leadership opportunities for the achievement of organizational goal and personal development.

APA, Harvard, Vancouver, ISO, and other styles

26

Fatima, Noshin, Fakhra Aziz, Zubair Ahmad, M. A. Najeeb, M. I. Azmeer, Kh S. Karimov, M. M. Ahmed, S. Basheer, R. A. Shakoor, and K. Sulaiman. "Compositional engineering of the pi-conjugated small molecular VOPcPhO : Alq3 complex to boost humidity sensing." RSC Advances 7, no. 32 (2017): 19780–86. http://dx.doi.org/10.1039/c7ra02525d.

Full text

Abstract:

This study exhibits a solution-processed organic semiconductor humidity sensor based on vanadyl 2,9,16,23-tetraphenoxy-29H,31H-phthalocyanine (VOPcPhO), tris-(8-hydroxy-quinoline)aluminum (Alq₃), and their composites.

APA, Harvard, Vancouver, ISO, and other styles

27

Fatima, Noshin, Fakhra Aziz, Zubair Ahmad, M. A. Najeeb, M. I. Azmeer, Kh S. Karimov, M. M. Ahmed, S. Bashir, R. A. Shakoor, and K. Sulaiman. "Correction: Compositional engineering of the pi-conjugated small molecular VOPcPhO : Alq3 complex to boost humidity sensing." RSC Advances 7, no. 41 (2017): 25621. http://dx.doi.org/10.1039/c7ra90062g.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

PI, TUN-WEN, and T. C. YU. "THE ORGANIC LED SURFACE: A SYNCHROTRON RADIATION PHOTOEMISSION STUDY." Surface Review and Letters 14, no. 03 (June 2007): 377–85. http://dx.doi.org/10.1142/s0218625x07009682.

Full text

Abstract:

Tris(8-hydroxyquinolato) aluminum ( Alq 3), a prototypical molecule for organic light-emitting devices, has been studied via synchrotron radiation photoemission to investigate (1) the surface electronic structure of the molecules at room temperature and at elevated temperatures, (2) adsorption onto the inorganic Si (001)-2×1 surface, and (3) doping with the alkaline metal Mg . For case (1), three chemical environments of carbon are resolved. Moreover, the shake-up satellite structures are detected in all the N 1s, C 1s, O 1s, and Al 2p core-level spectra, but with different magnitudes. Annealing allows for a charge redistribution within Alq 3 itself. As to case (2), the organic molecules not only passivate the dangling bonds, but also rupture the dimer bonds. The wave function of the surface dangling bonds and of the pyridyl side of an 8-quinolinol ligand overlaps greatly so that charge is polarized towards, the organic adlayer. However, the polarization diminishes at greater coverage. With regard to case (3), the N 1s core-level spectra appear as an Mg -induced charge-transfer component with a binding energy lower than the original component. This new component grows gradually in intensity with increasing concentration of the dopant. Moreover, Mg also affects the O 1s core, as manifested by a component lying at a +1.09 eV higher binding energy than the original component. The Mg 2p core-level spectra, although rather broad, exhibit a shift toward a lower binding energy with increasing Mg vapor. Upon examining all these experimental results, we propose that Mg in the surface Alq 3 molecules forms clusters. Each cluster attaches to a pyridyl ring, affecting not only the nitrogen atom at that ring, but also the oxygen atom in the adjacent phenoxide ring. The depleted charge in the affected oxygen then flows about its adherent ligand and resides on the pyridyl ring at that ligand, resulting in a high Alq 3 anion state.

APA, Harvard, Vancouver, ISO, and other styles

29

Matthew Menke, S., and Russell J. Holmes. "Evaluating the role of energetic disorder and thermal activation in exciton transport." Journal of Materials Chemistry C 4, no. 16 (2016): 3437–42. http://dx.doi.org/10.1039/c6tc00525j.

Full text

Abstract:

Temperature dependent measurements of the exciton diffusion length (L_D) are performed for three archetypical small-molecule, organic semiconductors: aluminum tris-(8-hydroxyquinoline) (Alq₃), dicyanovinyl-terthiophene (DCV3T), and boron subphthalocyanine chloride (SubPc).

APA, Harvard, Vancouver, ISO, and other styles

30

Murthy, Shruthi, Mahesh Shivaswamy, Sahana Mahesh, and Srikantha Hanumanthappa. "Simultaneous Removal of Arsenite and Fluoride from Groundwater using Batch Electrochemical Coagulation Process-Role of Aluminum with Iron Electrodes." Oriental Journal of Chemistry 35, no. 1 (February 12, 2019): 85–97. http://dx.doi.org/10.13005/ojc/350110.

Full text

Abstract:

Aluminum(Al) and Iron(Fe) electrodes were used forsimultaneous removal of arsenite and fluoride from groundwater using novel electrochemical coagulation (ECC)with special focus on electrode placing positions of Fe and Al in a batch electrochemical reactor (BECR).A series of experiments were carried out to observe the influence of electrode placing positions on removal. Of the many electrode combination, Al1-Al2-Al3-Al4, Fe1-Fe2-Fe3-Fe4, Al1-Al2-Fe3-Al4 and Fe1-Fe2-Al3-Fe4 are discussed in this paper for pre-optimized operating conditions: 4 plate electrodes, As (III)o: 1.6 mg/L, Fo‾: 12 mg/L, Al3+: 0 mg/L, Feo: 0.061 mg/L, inter-electrode spacing: 5mm, applied cell voltage:16V, SA/V ratio: 40 m2/m3 and electrolysis time of 45 min. For the said electrode combinations,the maximum simultaneous removal of both arsenite and fluoride was obtained for Fe1-Fe2-Al3-Fe4 with 97% arsenite removal from its initial value of 1.6 mg/L; and 100% fluoride removal from its initial value of 12 mg/L within 45 min of ET. Energy consumption was 2.01 KWh/m3 with operating cost of 2.90 Rs./m3.

APA, Harvard, Vancouver, ISO, and other styles

31

Li, Zhong'an, Tenglin Ye, Sun Tang, Can Wang, Dongge Ma, and Zhen Li. "Triphenylamine-based π-conjugated dendrimers: convenient synthesis, easy solution processability, and good hole-transporting properties." Journal of Materials Chemistry C 3, no. 9 (2015): 2016–23. http://dx.doi.org/10.1039/c4tc01923g.

Full text

Abstract:

As the hole-transporting layer fabricated through a facile solution process, DT2, bearing 22 triphenylamine moieties, can endow an Alq₃ based multi-layer OLED device with a maximum current efficiency of 2.36 cd A⁻¹.

APA, Harvard, Vancouver, ISO, and other styles

32

Shan, Meiling, Haipeng Jiang, Yu Guan, Dongsu Sun, Yu Wang, Jie Hua, and Jin Wang. "Enhanced hole injection in organic light-emitting diodes utilizing a copper iodide-doped hole injection layer." RSC Advances 7, no. 22 (2017): 13584–89. http://dx.doi.org/10.1039/c6ra28644e.

Full text

Abstract:

We have demonstrated organic light-emitting diodes (OLEDs) by incorporating copper iodide (CuI) in 4,4′,4′′-tris(N-3-methylphenyl-N-phenyl-amino)triphenylamine (m-MTDATA) as a hole injection layer (HIL) based on the emitting system of C545T–Alq₃.

APA, Harvard, Vancouver, ISO, and other styles

33

Lian, Hong, Zhenyu Tang, Hongen Guo, Zheng Zhong, Jian Wu, Qingchen Dong, Furong Zhu, Bin Wei, and Wai-Yeung Wong. "Magnetic nanoparticles/PEDOT:PSS composite hole-injection layer for efficient organic light-emitting diodes." Journal of Materials Chemistry C 6, no. 18 (2018): 4903–11. http://dx.doi.org/10.1039/c7tc05554d.

Full text

Abstract:

High performance Alq₃-based organic light emitting diodes are achieved by using magnetic nanoparticles/poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) as the composite hole-injection layer through the advantageous combination of light-scattering, localized surface plasmon resonance and magnetic effect.

APA, Harvard, Vancouver, ISO, and other styles

34

Zhong, Gao Yu, Pei Yuan Fang, and Yong Ming Cao. "Organic Light-Emitting Diodes with Varying Thickness of Bathocuproine Layer." Materials Science Forum 694 (July 2011): 901–7. http://dx.doi.org/10.4028/www.scientific.net/msf.694.901.

Full text

Abstract:

A series of organic light-emitting diodes (OLEDs) with or without a bathocuproine (BCP) layer inserted in the control device indium-tin-oxide (ITO)\ N,N'-bis-(1-naphthl)-diphenyl-1,1'- biphenyl-4,4'-diamine (NPB)\ tris(8-quinolinolato) aluminum (Alq)\LiF\Al have been fabricated and measured. Different influences of the BCP layer on electroluminescence (EL) of the OLEDs have been investigated. It is found that the highest efficiency of the OLED with a 1-nm BCP layer inserted between NPB and Alq increases to 3.99 cd/A, ~48% higher than that of the control device, while the EL efficiencies of the devices with other structures are similar to the latter. This phenomenon is ascribed to the hole-blocking effect of the BCP layer and the resulting higher density of carriers in the emission zone of the OLED. The EL performances of the OLEDs with different thicknesses of BCP layer are also discussed in details.

APA, Harvard, Vancouver, ISO, and other styles

35

Wu, Li Shuang, and Hui Shan Yang. "White Organic Light-Emitting Devices Using the Blue and Green Fluorescent Emitting Layer Structure Incorporating with Red Phosphorescent Emitting Layer." Advanced Materials Research 753-755 (August 2013): 2521–25. http://dx.doi.org/10.4028/www.scientific.net/amr.753-755.2521.

Full text

Abstract:

Efficient white organic light-emitting diodes are fabricated with the blue and green fluorescent incorporating red phosphorescent emitting layer. The blue, green and red emitting layer consist of 1,4-bis (2,2-diphenyl vinyl) benzene (DPVBi), tris (8-hydroxyquinoline) aluminium (Alq) and the bis (1-(phenyl) isoquinoline) iridium (III) acetylanetonate [Ir (piq)2(acac)] doped into 4,4(-N,N)-dicarbazole-biphenyl (CBP) host, respectively. The devices were made of ITO/ m-MTDATA (40 nm)/ NPB (10 nm) /DPVBi (8 nm)/ CBP: Ir (piq)2(acac) x% 5nm/ Alq (50 nm )/ LiF (1 nm) / Al (200 nm). The electroluminescent (EL) spectra exhibit three peaks at 456, 520 and 620 nm, resulting in white light-emission with the Commission Internationale dEclairage (CIE) chromaticity coordinates of (0.37, 0.44) at 4V to (0.23, 0.30) at 13V when x is 4, while the device shows the current efficiency of 4.0 cd/A at 6V, and its maximum luminance is 21660 cd/m2 at 13V, respectively.

APA, Harvard, Vancouver, ISO, and other styles

36

Song, Yajiao, Jianhua Lü, Bingxin Liu, and Changli Lü. "Temperature responsive polymer brushes grafted from graphene oxide: an efficient fluorescent sensing platform for 2,4,6-trinitrophenol." Journal of Materials Chemistry C 4, no. 29 (2016): 7083–92. http://dx.doi.org/10.1039/c6tc00898d.

Full text

Abstract:

The block copolymer brushes of PNIPAM-b-P(MQ-co-GMA) were grafted from GO by RAFT polymerization. The resulting luminescent hybrid containing Alq₃exhibited a robust temperature-responsive behavior and could be used as a nano-platform for the sensitive and selective detection of TNP.

APA, Harvard, Vancouver, ISO, and other styles

37

Korshunov, Vladislav M., Timofey N. Chmovzh, Ekaterina A. Knyazeva, Ilya V. Taydakov, Ludmila V. Mikhalchenko, Evgenia A. Varaksina, Rasim S. Saifutyarov, Igor C. Avetissov, and Oleg A. Rakitin. "A novel candle light-style OLED with a record low colour temperature." Chemical Communications 55, no. 89 (2019): 13354–57. http://dx.doi.org/10.1039/c9cc04973h.

Full text

Abstract:

Candle light-style OLEDs based on new D–A–π–A type molecules incorporated into Alq₃ matrix were developed. A record low color temperature of 1722 K OLED radiation was achieved, which is by 80 K lower than that of the best devices reported previously.

APA, Harvard, Vancouver, ISO, and other styles

38

Narasimhan, K. L., and Anver Aziz. "Transport in c-Si/Alq/Al structures." Synthetic Metals 122, no. 1 (May 2001): 181–83. http://dx.doi.org/10.1016/s0379-6779(00)01375-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Lee, S. T., X. Y. Hou, M. G. Mason, and C. W. Tang. "Energy level alignment at Alq/metal interfaces." Applied Physics Letters 72, no. 13 (March 30, 1998): 1593–95. http://dx.doi.org/10.1063/1.121125.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Zhong, G. Y., J. He, S. T. Zhang, Z. Xu, Z. H. Xiong, H. Z. Shi, X. M. Ding, W. Huang, and X. Y. Hou. "In situ photoluminescence investigation of doped Alq." Applied Physics Letters 80, no. 25 (June 24, 2002): 4846–48. http://dx.doi.org/10.1063/1.1489083.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Krupińska, Izabela. "Aluminium Drinking Water Treatment Residuals and Their Toxic Impact on Human Health." Molecules 25, no. 3 (February 2, 2020): 641. http://dx.doi.org/10.3390/molecules25030641.

Full text

Abstract:

Aluminium exerts undeniable human health effects, so its concentration should be controlled in water treatment plants. The article presents and discusses the results of studies on the influence of selected properties of aluminium coagulants on the concentration of aluminium remaining in the purified water. The coagulants used were classical hydrolysing aluminium salts: aluminium sulphate (VI) and sodium aluminate as well as pre-hydrolysed polyaluminium chlorides: Flokor 105B and PAX XL10 that had different the alkalinity coefficient r = [OH−]/[Al3+]. The Al species distribution in the coagulants samples were analysed by the Ferron complexation timed spectrophotometry. On the basis of their reaction rates with ferron reagent, the aluminium species were divided into three categories: monomeric (Ala), medium polymerised (Alb) and colloidal (Alc). The usefulness of the tested aluminium coagulants due to the concentration of residual aluminium and dissolved aluminium, which is easily assimilated by the human body, was increased according to the following series: sodium aluminate (Ala = 100%, Alb = 0) < aluminium sulphate (VI) (Ala = 91%, Alb = 9%) < PAX XL 10 (Ala = 6%, Alb = 28%, r = 2.10) < Flokor 105B (Ala = 3%, Alb = 54%, r = 2.55).

APA, Harvard, Vancouver, ISO, and other styles

42

Lee, Regina L. T., Wai Tong Chien, Keiko Tanida, Sachi Takeuchi, Phuphaibul Rutja, Stephen W. H. Kwok, and Paul H. Lee. "The Association between Demographic Characteristics, Lifestyle Health Behaviours, and Quality of Life among Adolescents in Asia Pacific Region." International Journal of Environmental Research and Public Health 16, no. 13 (July 1, 2019): 2324. http://dx.doi.org/10.3390/ijerph16132324.

Full text

Abstract:

Background: Given the risk of physical and psychosocial health that emerge in adolescents that are continuing into adulthood, identifying and addressing early signs of health-related quality of life (HRQoL) decline provides an opportunity to ensure that young people have a healthier progression through adolescence. Aim: To investigate the association between demographic characteristics, lifestyle health behaviours, and HRQoL of adolescents who live in Asia Pacific region, including Hong Kong in China, Beijing in China, Akashi in Japan, Seoul in South Korea, and Bangkok in Thailand. Methods: A cross-sectional self-reported survey carried out in a sample of 2296 adolescents that were aged 9–16 years (mean= 12.0; standard deviation [SD] = 1.63) was conducted in the five cities of the Asia Pacific region between January and August 2017. Demographic characteristics, adolescent lifestyle behaviours, and HRQoL were measured with demographic questionnaire, Adolescent Lifestyle Questionnaire’s (ALQ) seven domains and Paediatric Quality of Life’s (PedsQL 4.0) global score, respectively. Mixed multilevel model (MMLM) was used to fit the data. Results: After adjusting the demographic variables, one score increase in ALQ physical participation, nutrition, social support, and identity awareness are associated with an increase in PedsQL global score. On the contrary, one score increase in ALQ health practices is associated with a decrease in the PedsQL global score. The estimated mean of PedsQL global score of South Korea, Beijing, and Japan were better, while the score of Thailand and Hong Kong were poorer. Conclusions: Differentiating the impacts of promoting health behaviours among different countries can help in better understanding the health needs of adolescents in each country, especially in the Asia Pacific region, so that adequate and relevant resources can be allocated to reduce health-risk taking behaviours among this vulnerable group for health-promoting strategies.

APA, Harvard, Vancouver, ISO, and other styles

43

MAJUMDAR, SAYANI, SUKUMAR DEY, HANNU HUHTINEN, JOHNNY DAHL, MARJUKKA TUOMINEN, PEKKA LAUKKANEN, SEBASTIAAN VAN DIJKEN, and HIMADRI S. MAJUMDAR. "COMPARATIVE STUDY OF SPIN INJECTION AND TRANSPORT IN Alq3 AND Co–PHTHALOCYANINE-BASED ORGANIC SPIN VALVES." SPIN 04, no. 02 (June 2014): 1440009. http://dx.doi.org/10.1142/s2010324714400098.

Full text

Abstract:

Recent experimental reports suggest the formation of a highly spin-polarized interface ("spinterface") between a ferromagnetic (FM) Cobalt ( Co ) electrode and a metal-phthalocyanine (Pc) molecule. Another report shows an almost 60% giant magnetoresistance (GMR) response measured on Co / H 2 Pc -based single molecule spin valves. In this paper, we compare the spin injection and transport properties of organic spin valves with two different organic spacers, namely Tris(8-hydroxyquinolinato) aluminum ( Alq 3) and CoPc sandwiched between half-metallic La 0.7 Sr 0.3 MnO 3 (LSMO) and Co electrodes. Alq 3-based spin valves exhibit clear and reproducible spin valve switching with almost 35% negative GMR at 10 K, in accordance with previous reports. In contrast, cobalt-pthalocyanine ( CoPc )-based spin valves fail to show clear GMR response above noise level despite high expectations based on recent reports. Investigations of electronic, magnetic and magnetotransport properties of electrode/spacer interfaces of LSMO/ CoPc / Co devices offer three plausible explanations for the absence of GMR: (1) CoPc films are strongly chemisorbed on the LSMO surface. This improves the LSMO magnetic properties but also induces local traps at the LSMO interface for spin-polarized charge carriers. (2) At the Co / CoPc interface, diffusion of Co atoms into the organic semiconductor (OS) layer and chemical reactivity between Co and the OS deteriorates the FM properties of Co . This renders the Co / CoPc interface as unsuitable for efficient spin injection. (3) The presence of heavy Co atoms in CoPc leads to large spin–orbit coupling in the spacer. The spin relaxation time in the CoPc layer is therefore considerably smaller compared to Alq 3. Based on these findings, we suggest that the absence of GMR in CoPc -based spin valves is caused by a combined effect of inefficient spin injection from FM contacts and poor spin transport in the CoPc spacer layer.

APA, Harvard, Vancouver, ISO, and other styles

44

Dr. Said Saeed, Dr. Riasat Ali, and Dr. Fazli Khaliq. "Exploring Authentic Leadership in relation to Followers’ Authentic Leadership Development in Public and Private Sector Universities." Research Journal of Social Sciences and Economics Review (RJSSER) 1, no. 1 (April 17, 2020): 14–37. http://dx.doi.org/10.36902/rjsser-vol1-iss1-2020(14-37).

Full text

Abstract:

The study aims to explore the authentic leadership attributes (ALA) and its impact on the followers’ authentic leadership development (FALD). The objectives of the study were to investigate authentic leadership attributes of leaders, find out existing position of followers’ authentic leadership development and measure relationship between authentic leadership attributes and followers’ authentic leadership development at university level. The population of the study was 6975. The sample of the study was 967. The mixed method approach was used to collect information from the sample through modified form of ALQ developed by Walumbwa, Avolio, Gardener, Wernsing, & Peterson (2008) and in-depth interviews. Analysis was done with Mean, STD deviation, Pearson’s rank correlation and thematic analysis. It was found that r value (.513) which was significant at .000 showed significant positive large correlations between authentic leadership attributes and followers’ authentic leadership development at university level.

APA, Harvard, Vancouver, ISO, and other styles

45

Iwakura, I., H. Ebina, K. Komori-Orisaku, and Y. Koide. "A theoretical and experimental study on meridional–facial isomerization of tris(quinolin-8-olate)aluminum (Alq3)." Dalton Trans. 43, no. 34 (2014): 12824–27. http://dx.doi.org/10.1039/c4dt01121j.

Full text

Abstract:

The rationale behind the stereospecific synthesis of a facial isomer of tris(quinolin-8-olate)aluminum (Alq₃) is studied by density functional theory (DFT) calculations, which predict the favourable influence of an H₃O⁺ ion on the distribution ratio between a meridional and a thermodynamically unstable facial isomer.

APA, Harvard, Vancouver, ISO, and other styles

46

DENG, SUI-PING, HUI ZHENG, and JIAN-MING OUYANG. "DOUBLE-LAYER ELECTROLUMINESCENT DEVICES BASED ON LANGMUIR-BLODGETT FILMS OF AMPHIPHILIC 8-AMINOQUINOLINE." International Journal of Nanoscience 05, no. 06 (December 2006): 703–7. http://dx.doi.org/10.1142/s0219581x06005029.

Full text

Abstract:

Organic electroluminescent (EL) devices with a double-layer structure, ITO/H 2 A/Alq 3/ Al , were fabricated from powder and 15-layer LB films of a new amphiphilic 8-aminoquinoline ligand, N , N -bis(8-quinolinyl)hexadecyl propanediamide ( H 2 A ), respectively. Their driving voltages were 6.5 and 7.5 V, highest luminances 60 and 28.4 cd/m2.

APA, Harvard, Vancouver, ISO, and other styles

47

Liu, Xin, Zhuoyu Ji, Liwei Shang, Hong Wang, Yingping Chen, Maixing Han, Congyan Lu, Ming Liu, and Junning Chen. "Organic Programmable Resistance Memory Device Based on $\hbox{Au/Alq}_{3}/\hbox{gold-nanoparticle/Alq}_{3}/\hbox{Al}$ Structure." IEEE Electron Device Letters 32, no. 8 (August 2011): 1140–42. http://dx.doi.org/10.1109/led.2011.2158055.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

KAWASUMI, Y., I. AKAI, and T. KARASAWA. "PHOTOLUMINESCENCE AND DYNAMICS OF EXCITONS IN Alq3 SINGLE CRYSTALS." International Journal of Modern Physics B 15, no. 28n30 (December 10, 2001): 3825–28. http://dx.doi.org/10.1142/s0217979201008767.

Full text

Abstract:

The relaxation dynamics of photo-excited states in single crystals of Alq 3, utilized as organic electroluminescent (EL) devices, have been investigated. The photoluminescence (PL) peak of Alq 3 changes depending on the exciting photon energy and the temperature. Nevertheless, a PL peak appears at the same energy position as the EL peak for excitations at energies above the transition edge and a new PL band has been resolved at energies below the EL peak for excitation at the lowest part of the absorption tail. However, for low temperatures and for excitation in the intermediate energy region of the absorption tail, a PL peak appears at the lower energy side. This PL peak shifts into the same energy as the EL peak with increasing temperature. This behavior is explained by a model which takes account of two luminescent states and one non-luminescent intermediate state. In the intermediate energy region, the temperature dependence of the PL for the excitation is also explained by a thermal activation process mediated by the non-luminescent state. The lifetimes of the three states obtained from the temporal profiles of the PL are understood consistently on the basis of this model.

APA, Harvard, Vancouver, ISO, and other styles

49

Ahmad, Zubair, Mahdi Hasan Suhail, Issam Ibrahim Muhammad, Wissam Khayer Al-Rawi, Khaulah Sulaiman, Qayyum Zafar, Ahmad Sazali Hamzah, and Zurina Shaameri. "MEH-PPV/Alq 3 -based bulk heterojunction photodetector." Chinese Physics B 22, no. 10 (October 2013): 100701. http://dx.doi.org/10.1088/1674-1056/22/10/100701.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Zhong, Haoxiang, Yangzhi Zhao, Ting Zhang, and Gao Liu. "Controlled Lithium Deposition on Alq 3 Coated Substrate**." Batteries & Supercaps 4, no. 1 (September 7, 2020): 98–105. http://dx.doi.org/10.1002/batt.202000126.

Full text

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!