Lifetime of excess electrons in Cu–Zn–Sn–Se powders
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- 作者：G. F. Novikov ; M. V. Gapanovich ; V. F. Gremenok ; K. V. Bocharov…
- 刊名：Semiconductors
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：51
- 期：1
- 页码：18-22
- 全文大小：
- 刊物类别：Physics and Astronomy
- 刊物主题：Magnetism, Magnetic Materials; Physics, general;
- 出版者：Pleiades Publishing
- ISSN：1090-6479
- 卷排序：51
文摘
The method of time-resolved microwave photoconductivity at a frequency of 36 GHz in the range of temperatures of 200–300 K is used to study the kinetics of the annihilation of charge carriers in Cu–Zn–Sn–Se powders obtained by the solid-phase method of synthesis in cells. The lifetime of excess electrons at room temperature is found to be shorter than 5 ns. The activation energy for the process of recombination amounted to Ea ~ 0.054 eV.