Photovoltaic performance of Cu2ZnSnS4 thin film solar cells on flexible molybdenum foil formed by electrodeposition and sulfurization
Journal of Materials Science: Materials in Electronics, cilt.33, sa.6, ss.3101-3114, 2022 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 33 Sayı: 6
- Basım Tarihi: 2022
- Doi Numarası: 10.1007/s10854-021-07513-x
- Dergi Adı: Journal of Materials Science: Materials in Electronics
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Applied Science & Technology Source, Chemical Abstracts Core, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
- Sayfa Sayıları: ss.3101-3114
- Ankara Yıldırım Beyazıt Üniversitesi Adresli: Evet
Özet
© 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.The photovoltaic performance of CZTS film solar cells grown via electrodeposition and sulfurization was investigated using citrate (acidic electrolyte) or potassium pyrophosphate (alkaline electrolyte)-based electrolytes to investigate the influence of deposition on the final layer quality. The desired composition of Zn-rich and Cu-poor compact layers were obtained from both of the electrolytes, with 1–3.5 at.% standard deviation over 2 cm2 Mo foils. The precursors were transformed into CZTS after sulfurization at 500 °C for 1 h. The standard deviation of the metals decreased to 0.9–1.4 at.% after sulfurization. The major phase volume of the film is CZTS, with some binary sulfide and ternary tin sulfide secondary phases, according to XRD and Raman spectroscopy analyses. CZTS absorber layer films on flexible Mo foil were manufactured in solar cells with the following architecture: Al:Ni/ITO/ZnO/CdS/CZTS/Mo. For both electrolytes, we investigated the precursor composition deviation and the efficiency of the solar cell device; a correlation between composition and conversion efficiency was found. Zn-rich and Cu-poor regions resulted in relatively higher fill factor, open-circuit voltage, and efficiency (η), whereas Sn-rich and Cu-rich regions showed an excess of binary and ternary secondary phases for CZTS layers grown from both electrolytes. The highest efficiency obtained for CZTS_Citrate was 0.64% and CZTS_Pyro was 0.24%. Efficiency losses were attributed to recombination in the bulk film and at the back contact, due to the presence of secondary phases and MoS2, according to time-resolved photoluminescence and photoresponse studies determined by the external quantum efficiency.