Depolarizing energy transfer in photoluminescent polymer blends

被引：14

作者：

Montali, A

Palmans, ARA

Bras, J

Pepin-Donat, B

Guillerez, S

Smith, P

Weder, C ^{[1
]}

机构：

[1] ETH Zurich, Inst Polymers, Dept Mat, CH-8092 Zurich, Switzerland

[2] CEA Grenoble, UMR5819, DRFMC,PMS,Lab Phys Met Synthet, Lab Electrochim Mol Surfaces & Interfaces, F-38054 Grenoble 9, France

来源：

SYNTHETIC METALS | 2000年 / 115卷 / 1-3期

关键词：

depolarizing energy transfer; photoluminescent polarizers; light-emitting polymer; photoluminescent liquid-crystal display (LCD);

D O I：

10.1016/S0379-6779(00)00298-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The occurrence of a depolarizing polarizing energy transfer effect is demonstrated in uniaxially oriented polymer blend films. These blends are based on ultra-high molecular weight polyethylene as the matrix polymer, and additionally comprise 1,4-bis(2-ethylhexyloxy)phenylethynyl) benzene (EHO-BPB) as a sensitizer, and either a regioregular HT sexi(3-n-octylthiophene) (6OT) or 7-(dimethylamino)-4-trifluoromethyl) coumarin (C152) as emitter. The EHO-BPB sensitizer molecules are highly oriented in tensile-deformed blend films, and, thus, cause a highly anisotropic, i.e. linearly polarized optical absorption. The absorbed energy is, subsequently, transferred to the emitter molecules, which are essentially unoriented and, consequently, emit unpolarized light. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：41 / 45

页数：5