| Autor: |
Yezhan Li, Shu-Hua Zhang, Chengmin Ji, Junhua Luo, Sasa Wang, Yu Peng, Shiguo Han, Lina Li |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
Inorganic Chemistry Frontiers. 8:2119-2124 |
| ISSN: |
2052-1553 |
| Popis: |
White-light emission in lead halide hybrid perovskites has attracted increasing attention due to their significant applications in the field of light-emitting devices. Despite tremendous efforts, two-dimensional (2D) white-light emissive perovskites with high photoluminescence quantum efficiency (PLQE) remain scarce. In this work, by using alkoxyamine organic cations as a template, we successfully synthesized a new 2D layered hybrid perovskite, (γ-methoxy propyl amine)2PbBr4 (γ-MPAPB), which exhibits bright bluish white-light emission with an excellent color rendering index (CRI) of 85 and a high PLQE of 6.85%. Photoluminescence measurements show a correlation between self-trapped excitons and white-light emission. To the best of our knowledge, this is the first demonstration of a 2D hybrid perovskite with efficient white-light emission based on alkoxyamine cations. This work emphasizes the strategy of introducing alkoxyamine cations into 2D layered hybrid perovskites to design efficient white-light emissive perovskite semiconductors. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
