Frontiers of Optoelectronics, Volume. 15, Issue 3, 12200(2022)
Fabrication and characterization of ZnO/Se1-xTex solar cells
Selenium (Se) element is a promising light-harvesting material for solar cells because of the large absorption coefficient and prominent photoconductivity. However, the efficiency of Se solar cells has been stagnated for a long time owing to the suboptimal bandgap (> 1.8 eV) and the lack of a proper electron transport layer. In this work, we tune the bandgap of the absorber to the optimal value of Shockley–Queisser limit (1.36 eV) by alloying 30% Te with 70% Se. Simultaneously, ZnO electron transport layer is selected because of the proper band alignment, and the mild reaction at ZnO/Se0.7Te0.3 interface guarantees a good-quality heterojunction. Finally, a superior efficiency of 1.85% is achieved on ZnO/Se0.7Te0.3 solar cells.
Get Citation
Copy Citation Text
Jiajia Zheng, Liuchong Fu, Yuming He, Kanghua Li, Yue Lu, Jiayou Xue, Yuxuan Liu, Chong Dong, Chao Chen, Jiang Tang. Fabrication and characterization of ZnO/Se1-xTex solar cells[J]. Frontiers of Optoelectronics, 2022, 15(3): 12200
Category: RESEARCH ARTICLE
Received: Apr. 26, 2022
Accepted: Jun. 26, 2022
Published Online: Jan. 21, 2023
The Author Email: Chen Chao (cchen@mail.hust.edu.cn)