p-type Cu3BiS3 thin films for solar cell absorber layer via one stage thermal evaporation

Hussain, Arshad, Luo, Jing Ting, Fan, Ping, Liang, Guangxing, Su, Zhenghua, Ahmed, R., Ali, Nisar, Wei, Qiuping, Muhammad, Shabbir, Chaudhry, Aijaz Rasool and Fu, Richard (2020) p-type Cu3BiS3 thin films for solar cell absorber layer via one stage thermal evaporation. Applied Surface Science, 505. p. 144597. ISSN 0169-4332

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Official URL: https://doi.org/10.1016/j.apsusc.2019.144597

Abstract

Ternary copper sulphides, especially copper-bismuth-sulphide (Cu-Bi-S), are alternative solar absorber materials due to their earth-abundant and non-toxic constituent elements, compared to the conventional copper indium gallium sulphide and cadmium telluride films. In this study, Cu-Bi-S thin films were deposited onto soda lime glass substrates using a one stage co-evaporation process from Cu2S and Bi2S3 sources, with the deposition temperatures varied from room temperature to 400°C. X-ray diffraction analysis confirmed that Cu3BiS3 was the dominant phase in the Cu-rich films, and the crystalline quality of the films was significantly improved with increasing the deposition temperature. An optical bandgap of 1.4 eV was achieved for the film deposited at 400°C, which demonstrated a Hall mobility of 3.95 cm2/V-s and a carrier concentration of 7.48 × 1016 cm-3. Cu3BiS3 films deposited at 375 and 400°C were implemented into superstrate solar cell structures (glass/ITO/n-CdS/p-Cu3BiS3/Al).

Item Type: Article
Uncontrolled Keywords: p-Cu3BiS3, thermal co-evaporation, absorber layer, thin film solar cell, optical band gap
Subjects: F200 Materials Science
F300 Physics
H800 Chemical, Process and Energy Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Elena Carlaw
Date Deposited: 08 Nov 2019 17:17
Last Modified: 10 Mar 2020 15:15
URI: http://nrl.northumbria.ac.uk/id/eprint/41402

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