Abstract
For the increasing demand for renewable energy to reduce carbon dioxide emissions, a high-efficiency, low-cost perovskite solar cell (PSC) is one of the most promising technologies. To further improve the power conversion efficiency, a tandem device comprising a bottom cell with low band gap perovskite is a potential candidate. Tin-lead alloyed perovskite is suitable for this purpose due to its low band gap of about ∼1.2-1.3 eV. However, the stability of Sn(II) in the alloyed perovskite films poses a significant challenge to the progress of the technology. Here, we identify the origin of tin instability in tin-lead perovskite and analyze the promising stability improvement strategies available in the literature. In addition, we offer a perspective for further development of strategies to enhance the stability of the material and the device’s performance.
| Original language | English |
|---|---|
| Pages (from-to) | 4267-4277 |
| Number of pages | 11 |
| Journal | ACS Energy Letters |
| Volume | 8 |
| Issue number | 10 |
| DOIs | |
| State | Published - 13 Oct 2023 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2023 American Chemical Society.
Funding
This work was supported by the National Research Foundation of Korea (NRF) grants funded by the Korean government (MSIT) under Contract Nos. NRF-2021R1A3B1076723 (Research Leader Program) and NRF-2022M3J1A1085280 (Carbon Neutral Technology Program). This work was supported in part by the Korea Evaluation Institute of Industrial Technology under Contract No. 20016588.
| Funders | Funder number |
|---|---|
| NRF-2022M3J1A1085280 | |
| Ministry of Science, ICT and Future Planning | NRF-2021R1A3B1076723 |
| Korea Evaluation Institute of Industrial Technology | 20016588 |
| National Research Foundation of Korea |
