Diffusion length of singlet excitons in copper phthalocyanine films

被引：6

作者：

Signerski, Ryszard ^{[1
]}

Jarosz, Grazyna ^{[1
]}

机构：

[1] Gdansk Univ Technol, Fac Appl Phys & Math, G Narutowicza 11-12, PL-00233 Gdansk, Poland

来源：

PHOTONICS LETTERS OF POLAND | 2011年 / 3卷 / 03期

关键词：

D O I：

10.4302/plp.2011.3.06

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The work presents a method of extraction of exciton diffusion length from photocurrent spectrum measurements. A copper phthalocyanine (CuPc) layer was taken into consideration as an example. Samples were made in a high vacuum system by subsequent evaporation of the following layers: N, N'-dimethyle-3,4,9,10perylenbis(dicarboximide) (MePTCDI) and CuPc and Au onto glass/ITO substrate. The subject of our investigation was a saturation photocurrent generated by exciton dissociation at MePTCDI/CuPc interference. As a result of our analysis, the product of quantum efficiency of exciton dissociation and charge carrier collection and exciton diffusion length was estimated and it yielded 1.6nm.

引用

页码：107 / 109

页数：3

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