Conformal deposition of wide-bandgap perovskite films along pyramidal silicon surfaces through the dry process is essential for fabricating large-area textured silicon/perovskite tandem solar cells. However, it is difficult to control the composition of mixed perovskite films through dry processes because the deposition rate in organic and inorganic components is different when depositing perovskite films using a multi-source or premixed-source. In this study, MAPbI3 perovskite films were deposited through radio-frequency magnetron sputtering and dry conversion processes, and wide-bandgap perovskite films with mixed halide compositions were prepared by immersion in a MABr/IPA solution. Based on the results, the bandgap of the perovskite films increased with the immersion time. In addition, a uniform depth profile of the perovskite composition was observed in the film. Perovskite solar cells were manufactured to verify their electrical characteristics. Finally, wide-bandgap perovskite films were conformally deposited on textured silicon surfaces. These results show the great potential of applications in silicon/perovskite tandem solar cells.
|Applied Physics A: Materials Science and Processing
|Published - 2023 Apr
Bibliographical noteFunding Information:
The authors would like to thank JOIN SOLUTION Co. Ltd. for supporting the RF magnetron sputtering equipment.
This work was supported by the Human Resources Program in Energy Technology of the Korea Institute of Energy Technology Evaluation and Planning (KETEP), granted financial resource from the Ministry of Trade, Industry and Energy, Republic of Korea (no. 20204010600470). This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (no. 2022M3J1A1063226).
© 2023, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.
- Dry process
- Perovskite solar cells
- Silicon/perovskite tandem solar cells
ASJC Scopus subject areas
- General Chemistry
- General Materials Science