Quantum-Dot-Induced Cesium-Rich Surface Imparts Enhanced Stability to Formamidinium Lead Iodide Perovskite Solar Cells
发布时间：2024-08-09
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- 所属单位：
- 材料科学与工程学院
- 发表刊物：
- ACS Energy Letter
- 摘要：
- The stability of formamidinium lead iodide (FAPbI3) perovskites is generally improved by incorporating cesium (Cs) into the crystal structure. However, the effectiveness of this approach is limited by the intrinsically low solid-solubility of Cs in bulk FAPbI3. To circumvent this issue, we demonstrate a method that entails solution-deposition of high-Cs-content Cs1–xFAxPbI3 alloy quantum dots (QDs) onto a bulk Cs-lean FAPbI3-based thin film. This results in a thin film with a Cs-rich QD surface layer, which stabilizes the thin film against the ambient environment. Stable, efficient perovskite solar cells based on these new thin-film structures are demonstrated.
- 备注：
- 有
- 第一作者：
- 阙美丹
- 论文类型：
- 期刊论文
- 卷号：
- 2019, 4, 8, 1970-1975
- ISSN号：
- 2380-8195
- 是否译文：
- 否
- 发表时间：
- 2019-07-18