Influence of Synthesis Conditions on the Lifetime of Excess Charge Carriers in Monograin Powders with Kesterite Structure
- 作者: Gapanovich M.V.1, Varseev D.N.1,2, Rabenok E.V.1, Golovanov B.I.1, Novikov G.F.1,2
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隶属关系:
- Institute of Problems of Chemical Physics, Russian Academy of Sciences
- Moscow State University
- 期: 卷 53, 编号 6 (2019)
- 页面: 429-434
- 栏目: Photonics
- URL: https://journals.rcsi.science/0018-1439/article/view/157772
- DOI: https://doi.org/10.1134/S0018143919060079
- ID: 157772
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详细
By solid-phase synthesis, macrocrystalline Cu2 − δZn2 − xSnxS4 − ySey monograin powders have been prepared, the chemical composition of which was shown by XRD and Raman spectroscopy to be different in powder fractions of different sizes formed during the synthesis. The influence of synthesis conditions on the decay kinetics of photogenerated charge carriers in different fractions has been studied using the frequency–time-resolved microwave photoconductivity method. The characteristic photoresponse half-life, τ1/2, increased with increasing grain size. The smallest values of the lifetime were observed for the fraction with sizes of 50–70 μm (τ1/2 <5 ns), and the largest values were for the fraction with a grain size of 70–90 μm (τ1/2 ~ 12 ns).
作者简介
M. Gapanovich
Institute of Problems of Chemical Physics, Russian Academy of Sciences
Email: gfnovikov@gmail.com
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432
D. Varseev
Institute of Problems of Chemical Physics, Russian Academy of Sciences; Moscow State University
Email: gfnovikov@gmail.com
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432; Moscow, 119991
E. Rabenok
Institute of Problems of Chemical Physics, Russian Academy of Sciences
Email: gfnovikov@gmail.com
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432
B. Golovanov
Institute of Problems of Chemical Physics, Russian Academy of Sciences
Email: gfnovikov@gmail.com
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432
G. Novikov
Institute of Problems of Chemical Physics, Russian Academy of Sciences; Moscow State University
编辑信件的主要联系方式.
Email: gfnovikov@gmail.com
俄罗斯联邦, Chernogolovka, Moscow oblast, 142432; Moscow, 119991
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