CsPb x Mn 1– x Cl 3 Perovskite Quantum Dots with High Mn Substitution Ratio
Jilin University · State Key Laboratory of Supramolecular Structure and Materials · +1 more institution
Abstract
CsPbX3 (X = Cl, Br, I) perovskite quantum dots (QDs) are potential emitting materials for illumination and display applications, but toxic Pb is not environment- and user-friendly. In this work, we demonstrate the partial replacement of Pb with Mn through phosphine-free hot-injection preparation of CsPbxMn1–xCl3 QDs in colloidal solution. The Mn substitution ratio is up to 46%, and the as-prepared QDs maintain the tetragonal crystalline structure of the CsPbCl3 host. Meaningfully, Mn substitution greatly enhances the photoluminescence quantum yields of CsPbCl3 from 5 to 54%. The enhanced emission is attributed to the energy transfer of photoinduced excitons from the CsPbCl3 host to the doped Mn, which…
Citation impact
- FWCI
- 43.84
- Percentile
- 100%
- References
- 62
Authors
9- HLHuiwen LiuCorresponding
Jilin University, State Key Laboratory of Supramolecular Structure and Materials
- ZWZhennan Wu
Jilin University, State Key Laboratory of Supramolecular Structure and Materials
- JSJieren Shao
Jilin University, State Key Laboratory of Supramolecular Structure and Materials
- DYDong Yao
Jilin University, State Key Laboratory of Supramolecular Structure and Materials
- HGHang Gao
Jilin University, State Key Laboratory of Supramolecular Structure and Materials
Topics & keywords
- Photoluminescence
- Materials science
- Perovskite (structure)
- Tetragonal crystal system
- Quantum dot
- Light-emitting diode
- Exciton
- Optoelectronics
- Affordable and clean energy