PHOTOCURRENT TRANSIENT SPECTROSCOPY - MEASUREMENT OF THE DENSITY OF LOCALIZED STATES IN ALPHA-AS2SE3
PHOTOCURRENT TRANSIENT SPECTROSCOPY - MEASUREMENT OF THE DENSITY OF LOCALIZED STATES IN ALPHA-AS2SE3
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DOI：
10.1103/physrevlett.46.1421
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发表时间：
1981-01-01
影响因子：
8.6
通讯作者：
KASTNER, M
中科院分区：
文献类型：
--
作者：
ORENSTEIN, J;KASTNER, M
在a-As 2Se 3瞬态光致光吸收的测量表明，载流子热化内的带隙中的局域态的分布。光电流以及光致光吸收瞬态的解释与多重捕获机制的统一方式。在这种情况下，瞬态光电导提供了局域态密度的光谱。
Measurements of transient photoinduced optical absorption in a-As 2 Se 3 show that carriers thermalize within a distribution of localized states in the band gap. Photocurrent as well as photoinduced optical absorption transients are explained in a unified way with the multiple-trapping mechanism. Under such circumstances, transient photoconductivity provides a spectroscopy of the density of localized states.