Chain microstructure and specific features of excitation energy transfer in solution and films of poly(9,9-dioctylfluorene) doped with 2,1,3-benzothiadiazole comonomer units

被引：6
|
作者：
Yevlampieva, N. P. [1 ]
Khurchak, A. P. [1 ]
Nosova, G. I. [2 ]
Smyslov, R. Yu. [2 ]
Berezin, I. A. [2 ]
Ilgach, D. M. [2 ]
Kopylova, T. N. [3 ]
Gadirov, R. M. [3 ]
Yakimansky, A. V. [1 ,2 ]
机构：
[1] St Petersburg State Univ, 7-9 Univ Skaya Nab, St Petersburg 199034, Russia
[2] Russian Acad Sci, Inst Macromol Cpds, Bolshoi Prospect 31, St Petersburg 199004, Russia
[3] Tomsk State Univ, Kuznetsov Siberian Phys Tech Inst, Novosobornaya Sq 1, Tomsk 634050, Russia
来源：
CHEMICAL PHYSICS LETTERS | 2016年 / 645卷
基金：
俄罗斯科学基金会;
关键词：
LIGHT-EMITTING-DIODES; POLYFLUORENE; POLYMERS;
D O I：
10.1016/j.cplett.2015.12.039
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Spectral, luminescent and electro-optical properties of poly(9,9-dioctylfluorene), containing small quantity (1-2 mol%) of 2,1,3-benzothiadiazole comonomer units, obtained by means of either Suzuki or Yamamoto polycondensation reactions were studied and compared. The difference of luminescent properties of the two copolymers with nearly identical chemical compositions was explained by different molecular structure of their macromolecules. The films of Yamamoto type copolymer, containing, obviously, microblock sequences of 2,1,3-benzothiadiazole units, exhibit a nearly white electroluminescence (CIE x=0.276, y=0.274) with a high brightness (3747 cd/m(2) at 10V), while the films of Suzuki type copolymer with randomly distributed isolated 2,1,3-benzothiadiazole fragments -green electroluminescence. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：100 / 105
页数：6
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