Optical absorbance of oriented thin films

被引：74

作者：

Niko, A

Meghdadi, F

AmbroschDraxl, C

Vogl, P

Leising, G

机构：

[1] GRAZ UNIV,INST THEORET PHYS,A-8010 GRAZ,AUSTRIA

[2] TECH UNIV MUNICH,WALTER SCHOTTKY INST,D-85448 GARCHING,GERMANY

来源：

SYNTHETIC METALS | 1996年 / 76卷 / 1-3期

关键词：

optical absorbance; films;

D O I：

10.1016/0379-6779(95)03447-R

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report that the optical absorbance of oriented thin films of para-hexaphenyl (PHP), produced by vacuum deposition, shows strong anisotropy effects. An explanation for the orientation dependence of optical absorption of PHP is proposed, using first principles dielectric tensor calculations. The lack of the pi-pi* absorption band in the normal UV-Vis absorption spectrum is consistent with theoretical predictions for an orthorhombic thin PHP film with oligomer chains oriented near normal to the substrate surface.

引用

页码：177 / 179

页数：3

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