Cu2ZnSnS4 thin film growth optimization and post rapid thermal annealing of solar cells and its influence on device performance

Liyuan Zhang; Sreejith Karthikeyan; Mandip J. Sibakoti; Stephen A. Campbell

doi:10.1109/PVSC.2015.7355771

Cu2ZnSnS4 thin film growth optimization and post rapid thermal annealing of solar cells and its influence on device performance

Liyuan Zhang, Sreejith Karthikeyan, Mandip J. Sibakoti, Stephen A. Campbell

Electrical and Computer Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

Abstract

We investigated the synthesis of kesterite Cu2ZnSnS4 (CZTS) thin films using thermal evaporation from copper (Cu), zinc (Zn) and tin (Sn) pellets and post-annealing in a sulfur atmosphere. Two different metal precursor stacking orders (Cu/Sn/Zn/Cu and Cu/Sn/Cu/Zn) have been tested and experimental results prove that a layer of Cu on the top provides higher compositional uniformity and fewer secondary phases. CZTS thin films produced by a Cu/Sn/Zn/Cu precursor stacking order was used to study post rapid thermal annealing (RTA) influence on solar cell performance. The best performing solar cell using the CZTS thin film mentioned above with composition ratio Cu/(Zn+Sn) = 0.82, and Zn/Sn = 1.35 exhibited an open-circuit voltage of 433 mV, a short-circuit current of 7.78 mA/cm2, a fill factor of 46.23 % and a conversion efficiency of 1.56 %. Post RTA was conducted and an increase of device performance was observed. The solar cell which shows 1.56 % at room temperature shows 2.72 % efficiency after RTA at 350 °C for 30 seconds. The cell performance improvement mechanism was studied.

Original language	English (US)
Title of host publication	2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781479979448
DOIs	https://doi.org/10.1109/PVSC.2015.7355771
State	Published - Dec 14 2015
Event	42nd IEEE Photovoltaic Specialist Conference, PVSC 2015 - New Orleans, United States Duration: Jun 14 2015 → Jun 19 2015

Publication series

Name	2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015

Other

Other	42nd IEEE Photovoltaic Specialist Conference, PVSC 2015
Country/Territory	United States
City	New Orleans
Period	6/14/15 → 6/19/15

Bibliographical note

Publisher Copyright:
© 2015 IEEE.

Keywords

Cu2ZnSnS4
interfacial defect concentration
photovoltaic cells
rapid thermal annealing

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1109/PVSC.2015.7355771

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Zhang, L., Karthikeyan, S., Sibakoti, M. J., & Campbell, S. A. (2015). Cu2ZnSnS4 thin film growth optimization and post rapid thermal annealing of solar cells and its influence on device performance. In 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015 [7355771] (2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2015.7355771

Cu2ZnSnS4 thin film growth optimization and post rapid thermal annealing of solar cells and its influence on device performance. / Zhang, Liyuan; Karthikeyan, Sreejith; Sibakoti, Mandip J.; Campbell, Stephen A.

2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015. Institute of Electrical and Electronics Engineers Inc., 2015. 7355771 (2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Zhang, L, Karthikeyan, S, Sibakoti, MJ & Campbell, SA 2015, Cu2ZnSnS4 thin film growth optimization and post rapid thermal annealing of solar cells and its influence on device performance. in 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015., 7355771, 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015, Institute of Electrical and Electronics Engineers Inc., 42nd IEEE Photovoltaic Specialist Conference, PVSC 2015, New Orleans, United States, 6/14/15. https://doi.org/10.1109/PVSC.2015.7355771

Zhang L, Karthikeyan S, Sibakoti MJ, Campbell SA. Cu2ZnSnS4 thin film growth optimization and post rapid thermal annealing of solar cells and its influence on device performance. In 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015. Institute of Electrical and Electronics Engineers Inc. 2015. 7355771. (2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015). https://doi.org/10.1109/PVSC.2015.7355771

Zhang, Liyuan ; Karthikeyan, Sreejith ; Sibakoti, Mandip J. ; Campbell, Stephen A. / Cu2ZnSnS4 thin film growth optimization and post rapid thermal annealing of solar cells and its influence on device performance. 2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015. Institute of Electrical and Electronics Engineers Inc., 2015. (2015 IEEE 42nd Photovoltaic Specialist Conference, PVSC 2015).

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Cu2ZnSnS4 thin film growth optimization and post rapid thermal annealing of solar cells and its influence on device performance

Abstract

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Bibliographical note

Keywords

UN SDGs

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