Journal article
An ITO-Free Kesterite Solar Cell
Y Ji, W Chen, D Yan, J Bullock, Y Xu, Z Su, W Yang, JS Laird, T Zheng, N Wu, W Zha, Q Luo, CQ Ma, TA Smith, F Liu, P Mulvaney
Small | Published : 2024
Open access
Abstract
Photovoltaic thin film solar cells based on kesterite Cu2ZnSn(S, Se)4 (CZTSSe) have reached 13.8% sunlight-to-electricity conversion efficiency. However, this efficiency is still far from the Shockley-Queisser radiative limit and is hindered by the significant deficit in open circuit voltage (VOC). The presence of high-density interface states between the absorber layer and buffer or window layer leads to the recombination of photogenerated carriers, thereby reducing effective carrier collection. To tackle this issue, a new window structure ZnO/AgNW/ZnO/AgNW (ZAZA) comprising layers of ZnO and silver nanowires (AgNWs) is proposed. This structure offers a simple and low-damage processing meth..
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Awarded by Australian Research Council
Funding Acknowledgements
Y.J. and W.C. contributed equally to this work. This work was funded by the National Key Research and Development Program of China (2018YFE0203400) and the ARC Centre of Excellence in Exciton Science through ARC Grant CE170100026. The authors acknowledge support from DIISR through the Australia-China Science Research Fund (Grant ACSRIII000001). Yixiong Ji wants to thank Dr.Sergey Rubanov for his help with FIB and TEM, Claire Dawson for AgNW synthesis, and Trent Ralph for his support with the RTP furnace set-up.