Investigation of Novel n-Doped a-Si/CZTSe Ultrathin-Film Solar Cell for Enhanced Performance
Document Type
Article
Publication Date
9-1-2023
Abstract
The ultrathin-film solar cell (UTFSC) technology has recently intrigued researchers with various chalcogenide materials, namely, copper indium gallium selenide (CIGS), copper zinc tin sulfide (CZTS), and copper zinc tin selenide (CZTSe), which exhibit formidable performance. The implementation of CZTSe as a second-generation thin-film absorber layer (due to its incredible light-absorbing capability) has motivated to design a UTFSC based on the CZTSe absorber layer. This work analyzed the possibility of a UTFSC by proposing a single-layer amorphous silicon (a-Si)/CZTSe structure (2-D). Due to its natural p-type characteristics, a-Si/CZTSe builds a p-n junction depletion layer that separates electron-hole pairs. Implementing different electric and optical parameters, and physical models, the efficiency of the solar cell is observed at different thicknesses. The optimized efficiency of the proposed structure is found to be 10.99%, at 700-nm CZTSe and 50-nm a-Si thickness. Also, an analysis is done after introducing defects in the CZTSe layer, which decreases the performance of the cell by around 0.4% (10.58%). At this optimized condition, the short-circuit current density (JSC ), open-circuit voltage (VOC), and fill factor (FF) are found to be 41.88 mA/cm2, 0.548 V, and 46.05%, respectively. These results implicate a greater opportunity for the development of UTFSC in the near future involving nontoxic materials and a simple fabrication process.
Identifier
85165874718 (Scopus)
Publication Title
IEEE Transactions on Electron Devices
External Full Text Location
https://doi.org/10.1109/TED.2023.3295339
e-ISSN
15579646
ISSN
00189383
First Page
4655
Last Page
4661
Issue
9
Volume
70
Recommended Citation
Paul, Rabin; Lenka, Trupti Ranjan; Talukdar, Fazal Ahmed; Boukortt, Nour El Islam; and Nguyen, Hieu Pham Trung, "Investigation of Novel n-Doped a-Si/CZTSe Ultrathin-Film Solar Cell for Enhanced Performance" (2023). Faculty Publications. 1482.
https://digitalcommons.njit.edu/fac_pubs/1482