PHOTOVOLTAIC AND PHOTOCONDUCTIVE PROPERTIES OF ALUMINUM POLY(P-PHENYLENE VINYLENE) INTERFACES

被引:198
作者
ANTONIADIS, H
HSIEH, BR
ABKOWITZ, MA
JENEKHE, SA
STOLKA, M
机构
[1] XEROX CORP,WEBSTER RES CTR,WEBSTER,NY 14580
[2] UNIV ROCHESTER,DEPT CHEM ENGN,ROCHESTER,NY 14627
关键词
D O I
10.1016/0379-6779(94)90215-1
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Photoconductive and photovoltaic properties of Al/PPV/ITO sandwich devices were investigated by measuring steady-state photocurrents resulting from illumination through the Al electrode. A built-in potential (V(bi)) was detected at the Al/PPV interface. The voltage dependence of the photocurrent in the vicinity of V(bi) was measured at 1 mW/cm2 of incident illumination to give an open-circuit voltage and a short-circuit current of 1.2 V and 6 x 10(-7) A/cm2, respectively. The dependences of the short-circuit current on excitation wavelength and illumination intensity are presented and the C-V characteristics of the Al/PPV interface are analyzed. The quantum collection efficiency decreased from 5% to 1% as the intensity of illumination increased from 10(-5) to 1 mW/cm2. The photovoltaic conversion power efficiency was about 0.07% for intensities approaching 1 mW/cm2. The V(bi) value was accounted for by surface band-bending at the Al/PPV interface.
引用
收藏
页码:265 / 271
页数:7
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