Dynamics of photoexcitations in highly fluorescent organic guest-host-systems

被引：5

作者：

List, EJW

Graupner, W

Wohlgenannt, M

Leising, G

Partee, J

Shinar, J

Schlichting, P

Rohr, U

Geerts, Y

Scherf, U

Mullen, K

机构：

[1] Graz Tech Univ, Inst Festkorperphys, A-8010 Graz, Austria

[2] Iowa State Univ, Ames Lab, Ames, IA 50011 USA

[3] Max Planck Inst Polymerforsch, Mainz, Germany

来源：

OPTICAL MATERIALS | 1998年 / 9卷 / 1-4期

关键词：

D O I：

10.1016/S0925-3467(97)00136-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A guest-host-system based an a few hundred ppm of the red emitting poly(perylene-co-diethynylbenzene) (PPDB) in blue emitting ladder-type poly(para-phenylene) (LPPP) can be used to build efficient white light emitting devices. Upon photoexcitation of the films a very efficient excitation energy transfer (EET), involving the diffusion of an electron hole pair from the higher energy yap LPPP to the lower-gap PPDB, is observed. The results of optically detected magnetic resonance and photoinduced absorption of these blends, all of which are sensitive to charged spin 1/2 stairs and spin 1 triplet excitons. are described and discussed. (C) 1998 Elsevier Science B.V.

引用

页码：494 / 497

页数：4

共 16 条

[1] *ZWISCHENMOLEKULARE ENERGIEWANDERUNG UND FLUORESZENZ [J].