Photoinduced Hole Injection Multiplication in p-Type Quinacridone Pigment Films
Photoinduced Hole Injection Multiplication in p-Type Quinacridone Pigment Films
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DOI：
10.1143/jjap.35.l349
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发表时间：
1996-03
影响因子：
1.5
通讯作者：
M. Hiramoto;Shuji Kawase Shuji Kawase-Shuji-Kawase;Masaaki Yokoyama Masaaki Yokoyama-Masaaki-Yokoyama
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文献类型：
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作者：
M. Hiramoto;Shuji Kawase Shuji Kawase-Shuji-Kawase;Masaaki Yokoyama Masaaki Yokoyama-Masaaki-Yokoyama
在有机p型喹吖啶酮颜料膜中观察到了由于空穴注入而产生的高达2500倍的光电流倍增效应。这种现象被揭示是由于光致过剩空穴注入从一个正偏置的金属电极的p-型有机膜通过其耗尽层在高电场下，这是建立了由界面附近的捕获电子的光积累。这是一个清楚的例子，即对于n型有机颜料膜观察到的光致电子注入的相反机制可以发生在p型有机颜料膜中。
A large photocurrent multiplication due to hole injection reaching 2500-fold was observed in organic p-type quinacridone pigment films. This phenomenon was revealed to be due to photoinduced excess hole injection from a positively biased metal electrode to the p-type organic film through its depletion layer under a high electric field, which is built up by the photo-accumulation of trapped electrons near the interface. This is a clear example that the reverse mechanism to the photoinduced electron injection observed for n-type organic pigment film can occur in p-type organic pigment film.