Stark spectroscopy of CuPc organic semiconductor with a submicron metal-electrode grating

被引：5
作者：
Blinov, L. M. [1 ]
Lazarev, V. V. [1 ]
Yudin, S. G. [1 ]
Palto, S. P. [1 ]
机构：
[1] Russian Acad Sci, Shubnikov Inst Crystallog, Leninskii Pr 59, Moscow 119333, Russia
来源：
OPTICS AND SPECTROSCOPY | 2016年 / 120卷 / 02期
基金：
俄罗斯科学基金会;
关键词：
ELECTROABSORPTION; PHTHALOCYANINES; PHOTODETECTORS; FIELDS; FILMS; CELLS;
D O I：
10.1134/S0030400X1602003X
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The optical and electro-optical properties of organic copper phthalocyanine semiconductor (alpha- CuPc) have been investigated by Stark (electroabsorption) spectroscopy using a metal electrode grating with a submicron (0.88 mu m) interelectrode distance. Differences between dipole moments (Delta mu) and polarizabilities (Delta alpha) in the excited and ground states of alpha-CuPc are measured for a nanoscale semiconductor film. It is concluded that the extremely high values of Delta mu and Delta alpha are in principle not parameters of individual alpha-CuPc molecules: they are determined by exciton effects specifically in the polycrystalline medium with a characteristic morphology of hyperfine films, which depends on the structure of the samples and their fabrication technology.
引用
收藏
页码：300 / 305
页数：6
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