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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50422

Title: Bisindolylmaleimides as Red Electroluminescence Materials
Authors: Chiu, C.-W
Chow, T.-J
Chuen, C.-H
Lin, H.-M
Tao, Y.-T
Contributors: 國立臺灣海洋大學:生命科學暨生物科技學系
Date: 2003-10
Issue Date: 2018-10-08T03:29:14Z
Publisher: Chem. Mat
Abstract: Abstract: Derivatives of bisindolylmaleimide were found to form amorphous solid films which exhibit red luminescence, and can be fabricated into light-emitting diodes. The property of forming glasses can be ascribed to the nonplanar geometry of these molecules. Single-crystal X-ray diffraction analyses revealed the presence of pseudo E and Z conformational isomers which are responsible for the phenomena of polymorphism detected by differential scanning calorimetry. All compounds exhibit distinct glass transition temperatures, and several show dual melting temperatures. Two kinds of devices were fabricated in which a layer of pure dye was sandwiched between opposite charge transporting layers. The emission spectra of devices utilizing tris(8-hydoxyquinolinato)aluminum (Alq) contained a green component from Alq. Pure red emissions can be achieved by replacing Alq with 2,2‘,2‘ ‘-(1,3,5-benzenetriyl)tris(1-phenyl-1H-benzimidazole) (TPBI). Typical devices can be turned on at about 3 V with maximal intensity of ∼2000 cd/m2.
Relation: 15(23) pp.4527-4532
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/50422
Appears in Collections:[生命科學暨生物科技學系] 期刊論文

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