Photoluminescence Study of Polycrystalline CuGaSe2 Thin-Films Grown by Three-stage Evaporation Method

Muhammad Monirul Islam; Hajime Shibata; Koji Matsubara; Shigeru Niki; Katsuhiro Akimoto; Takeaki Sakurai

doi:10.57386/tmc.2016.0_12

2016

DOI https://doi.org/10.57386/tmc.2016.0_12

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Name : [in Japanese]

Location : [in Japanese]

Date : December 09, 2016 - December 10, 2016

Photoluminescence Study of Polycrystalline CuGaSe₂ Thin-Films Grown by Three-stage Evaporation Method

Muhammad Monirul Islam, Hajime Shibata, Koji Matsubara, Shigeru Niki, Katsuhiro Akimoto, Takeaki Sakurai

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CONFERENCE PROCEEDINGS FREE ACCESS

Pages 12-13

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Abstract

CuGaSe₂ thin films with different Cu/Ga ratio were studied using photoluminescence (PL) method. Measurement at 1.4 K shows asymmetrically broadened PL spectra for all the samples where PL-peaks shift to lower energy with a decrease of the Cu/Ga ratio. Excitation power and temperature dependent PL spectra were explained using donor to acceptor pair transition under the influence of potential fluctuation.

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