三(8-羟基喹啉)铝(Alq3)是有机电致发光器件的基础材料。本文评述了如何通过分子的化学修饰和聚集态结构的改变来调控其发光光谱,提高发光效率。这将为开发高性能的有机电致发光材料及器件提供参考与依据。
http://www.70edu.com
[15] Yu J, Chen J, Sakuratani Y. A novel blue light emitting diode using
tris(2,3-methyl-8-hydroxyquinoline)aluminum(III) as emitter. Jpn J Appl Phys, 38: 6762-6763, 1999
[16] Burrows P E, Shen Z, Bulovic V, McCarty M, Forrest S R, Cronin J A, Thompson M E. Relationship between
electroluminescence and current transport in organic heterojunction light-emitting devices. J Appl Phys, 79: 7991-8006, 1996
[17] Vanslyke S A. Bryan P S, Lovecchio F V. US Patent, 5150006, 1990
[18] Eck T D, Wehry E L, Hercules D M. J Inorg Mucl Chem, 28:2439, 1966
[19] Pohl R, Anzenbacher P. Emission color tuning in AlQ3 complexes with extended conjugated chromophores.
Org Lett , 5: 2769-2772, 2003
[20] Pohl R, Montes V A, Shinar J. Red-green-blue emission from tris(5-aryl-8-quinolinolate)Al(III) complexes. J
Org Chem, 69, 1723-1725, 2004
[21] Leung L M, Lo W Y, So S K. A high-efficiency blue emitter for small molecule-based organic light-emitting
diode. J Am Chem Soc, 122: 5640 -5641, 2000
[22] Meyers A, Weck M. Solution and solid-state characterization of Alq3-functionalized polymers. Chem Mater,
16: 1183-1188, 2004
[23] Meyers A, South C, Weck M. Design, synthesis, characterization, and fluorescent studies of the first
zinc-quinolate polymer. Chem Commun, 10:1176-1177, 2004
[24] Brinkmanm M, Gadret G, Muccini M, Taliani C, Masciocchi N, Sironi A. Correlation between molecular
packing and optical properties in different crystalline polymorphs and amorphous thin films of mer-tris (8-hydroxyquinoline) aluminum(III). J Am Chem Soc, 122: 5147-5157, 2000
[25] Colle M, Brutting W. Thermal, Structural and photophysical properties of the organic semiconductor Alq3.
Phys Stat Sol (a), 201: 1095-1115, 2004
[26] Muccini M, Loi M A, Kenevey K. Blue luminescence of facial tris(quinolin-8-olato) aluminum(III) in solution,
crystals, and thin films. Adv Mater, 16: 861-864, 2004
[27] Colle M, Gmeiner J, Milius W, Hillebrecht H, Brutting W. Preparation and characterization of
blue-luminescent tris(8-hydroxyquinoline)aluminum(Alq3). Adv Funct Mater, 13: 108-112, 2003
[28] Colle M, Garditz C, Muckl A G. Phosphorescence and electrophosphorescence in thin films of
tris-(8-hydoxyquinoline)aluminum(III) (Alq3). Synth Met, 147: 97-100, 2004
[29] Shi Y W, Shi M M, Chen H Z. Chem Commun, submitted
[30] Sapochak L S, Padmaperuma A, Washton N, Endrino F, Schmett G T, Marshall J, Fogerty D, Burrows P E,
Forrest S R, Effects of systematic Methyl Substitution of metal(III)tris(n-methyl-8-quinolinolato) chelates on material properties for optimum electroluminescence Device performance. J Am Chem Soc, 123, 6300, 2001
Light emission tuning of organic electroluminescence
material of aluminum tris-(8-hydroxyquinoline) (Alq3)
Shi Yue-Wen, SHI Min-min, CHEN Hong-zheng, WANG Mang
(Department of Polymer Science and Engineering, State Key Lab of Silicon Materials, Zhejiang
University, Hangzhou 310027, China)
Abstract
Aluminum tris-(8-hydroxyquinoline) (Alq3) is one of fundamental materials for organic electroluminescence (EL) devices. This article comments the recent progresses in tuning the light emission and quantum efficiency of Alq3 through chemical modification and aggregation structure variation, which provides us experiences and approaches to design and prepare high-performance organic EL devices based on Alq3 derivatives.
Keywords: Tris-(8-hydroxyquinolinato)aluminum; Organic electroluminescence; Chemical modification; Aggregation structure
- 6 -
