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Photogeneration carriers in organic doped systems
作者: Tian WJ, Wang H
來源出版物: CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE    卷: 25    期: 6    頁: 1128-1131    出版年: JUN 10 2004

摘要: Stationary photocurrrent in phenyl substituted polyphenylenevinylene (PhPPV) and hexabenzocoronene (HBC) doped by perylenediimide (PDI) in a broad range of PDI mass fractions was investigated by steady state photocurrent measurements and using thin films in a light-emitting devices sandwich structure. It is shown that at-and above the moderate mass fractions the yield of the charge photogeneration carriers is almost independent of the system and the mass fractions of dopant. As PDI mass fractions > 10 %, the photogeneration quantum yield increases by two to three orders of magnitude by comparing with the pure system.

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