Electric field effect on luminescence, and photoconduction in electron donor-electron acceptor organic solid films

被引：6

作者：

Kalinowski, J. ^{[1
]}

Cocchi, M.

Virgili, D.

机构：

[1] Gdansk Univ Technol, Dept Mol Phys, PL-80952 Gdansk, Poland

[2] Natl Res Council Italy ISOF CNR, Inst Organ Synth & Photoreact, I-40129 Bologna, Italy

来源：

CHEMICAL PHYSICS LETTERS | 2007年 / 441卷 / 4-6期

关键词：

D O I：

10.1016/j.cplett.2007.05.016

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：

The electric field-induced exciplex photolumniescence quenching (up to 80%) is accompanied by remarkable photocurrents (up to 1 mA/cm(2)) in undoped and a (PtLCl)-Cl-2 (L = organic ligand) complex-doped blends of a starburst amine of m-MTDATA used as an electron donor and bathophenathroline (BPT) used as an electron acceptor. These results are rationalized by efficient dissociation of singlet (1)\m-MTDATA:BPT] and triplet (3)\m-MTDATA:(PtLCl)-Cl-2] exciplexes, and molecular excitons (1)(m-MTDATA) of the donor being exciplex precursors. While the dissociation determines the photoconduction of the blends, the interaction of molecular singlet excitons, (1)(m-MTDATA), with the photogenerated charge is the process that largely controls the quenching effects. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：286 / 293

页数：8

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