Photoconductive properties of organic-inorganic Ag/p-CuPc/n-GaAs/Ag cell  

作　　者：Khasan Sanginovich Karimov Muhammad Tariq Saeed Fazal Ahmad Khalid Zioda Mirzoevna Karieva 

机构地区：[1]GIK Institute of Engineering Sciences and Technology,Topi 23640,Swabi,Khyber Pakhtunkhwa,Pakistan [2]physical Technical Institute of Academy of Sciences,Rudaki Ave.33,Dushanbe,734025,Tajikistan [3]Tajik Technical University,Rajabov St.10,Dushanbe,734000,Tajikistan

出　　处：《Journal of Semiconductors》2011年第7期1-4,共4页半导体学报（英文版）

摘　　要：A thin film of copper phthalocyanine（CuPc）,a p-type semiconductor,was deposited by thermal evaporation in vacuum on an n-type gallium arsenide（GaAs） single-crystal semiconductor substrate.Then semitransparent Ag thin film was deposited onto the CuPc film also by thermal evaporation to fabricate the Ag/p-CuPc /n-GaAs/Ag cell.Photoconduction of the cell was measured in photoresistive and photodiode modes of operation. It was observed that with an increase in illumination,the photoresistance decreased in reverse bias while it increased in forward bias.The photocurrent was increased in reverse bias operation.In forward bias operation with an increase in illumination,the photocurrent showed a different behavior depending on the voltage applied.A thin film of copper phthalocyanine（CuPc）,a p-type semiconductor,was deposited by thermal evaporation in vacuum on an n-type gallium arsenide（GaAs） single-crystal semiconductor substrate.Then semitransparent Ag thin film was deposited onto the CuPc film also by thermal evaporation to fabricate the Ag/p-CuPc /n-GaAs/Ag cell.Photoconduction of the cell was measured in photoresistive and photodiode modes of operation. It was observed that with an increase in illumination,the photoresistance decreased in reverse bias while it increased in forward bias.The photocurrent was increased in reverse bias operation.In forward bias operation with an increase in illumination,the photocurrent showed a different behavior depending on the voltage applied.

关 键 词：ORGANIC-INORGANIC thin film photoconductive cell copper phthalocyanine gallium arsenide 

分 类 号：TN304.23[电子电信—物理电子学]