邻苯二甲酸盐的电子性质(固体铜邻苯二甲酸盐的光导性)

P. Devaux, M. Schott, M. Lazerges
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引用次数: 4

摘要

我们研究了光电导率和表面光电导率和表面光电导率和表面光电导率的关系。在2500a和8000a电压下测试光导晶体。光导光谱与光导光谱近似,光导光谱吸收近似;会出现温度较低(> 170°K),结构精细。光导的激活能量为0.1 eV。由于使用强度的增加,光适应性的降低取决于环境条件的变化。光导函数与张力贴片的依赖关系允许计算近似于光导曲面上的光导函数。测定了酞菁铜单晶的表面电导率,并与同种物质的薄膜进行了比较。该晶体在2500a至8000a范围内为光导体。光导光谱与吸收光谱有些相似,在研究温度范围内(> 170°K),它不显示任何精细结构。然而,光电流的活化能很弱。在使用的强度下,光电流的依赖性小于线性,并且对周围条件的依赖性很小。光电流对电压的依赖性使表面载流子的近似数目得以计算。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Propriétés électroniques des Phtalocyanines (Photoconductivité de la Phtalocyanine de cuivre solide)
Nous avons a etudie la photoconductivite de sur facede nombreux monocristaux de CuPc et a titre de comparaison de plusieurs couches minces de meme corps. Le cristal est photoconducteur de 2500 A a 8000 A. Le spectre de photoconduction a une ressemblance grossiere avec le spectre d'absorption; il ne presente aux temperatures etudiees (> 170 °K) aucune structure fine. Il y a cependant une faible energie d'activation de photoconduction (0,1 eV). Aux intensites utilisees, le photocourant est sous lineaire et depend peu des conditions ambiantes. La dependance de photocourant en fonction de la tension appliquee permet de calculer le nombre approximatif de porteurs a la surface. The surface conductivity of single crystals of copper phtalocyanine is measured and compared with the values for thin films of the same substance. The crystal is a photoconductor from 2500 A to 8000 A. The photoconduction spectrum is somewhat similar to the absorption spectrum and in the range of temperatures studied (> 170 °K), it does not show any fine structure. The photocurrent does, however, have a weak activation energy. At the intensities used, dependence of the photocurrent is less than linear and depends very little upon the surrounding conditions. The dependence of photocurrent on voltage allows the approximate numbers of carriers at the surface to be calculated.
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