Electrical conductivity and electronic structure of potassium doped PTCDA

被引：8

作者：

Iwasaki, K ^{[1
]}

Umishita, K

Sakata, M

Hino, S

机构：

[1] Chiba Univ, Fac Engn, Chiba 2638522, Japan

[2] Chiba Univ, Grad Sch Sci & Technol, Chiba 2638522, Japan

来源：

SYNTHETIC METALS | 2001年 / 121卷 / 1-3期

关键词：

transport measurements; photoelectron spectroscopy; evaporation and sublimation; organic semiconductors based on conjugated molecules;

D O I：

10.1016/S0379-6779(00)01020-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electric conductivity and ultraviolet photoelectron spectra (UPS) of potassium doped 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA) were measured. The conductivity of potassium doped PTCDA film jumps up to 0.1 Scm(-1) from around 106 Scm(-1) of pristine one. Potassium doping to PTCDA also brings change in the upper valence band UPS; spectral onset moves closer to the Fermi level (E-F). These phenomena can be attributed to electron transfer from potassium to PTCDA, which is confirmed by MNDO molecular orbital calculation.

引用

页码：1395 / 1396

页数：2

共 6 条

[1] ELECTRON-DIFFRACTION AND PHOTOELECTRON-SPECTROSCOPY STUDIES OF FULLERENE AND ALKALI-METAL FULLERIDE FILMS [J].