Brightly Luminescent and Color-Tunable Colloidal CH 3 NH 3 PbX 3 (X = Br, I, Cl) Quantum Dots: Potential Alternatives for Display Technology
Beijing Institute of Technology · Huazhong University of Science and Technology
Abstract
Organometal halide perovskites are inexpensive materials with desirable characteristics of color-tunable and narrow-band emissions for lighting and display technology, but they suffer from low photoluminescence quantum yields at low excitation fluencies. Here we developed a ligand-assisted reprecipitation strategy to fabricate brightly luminescent and color-tunable colloidal CH3NH3PbX3 (X = Br, I, Cl) quantum dots with absolute quantum yield up to 70% at room temperature and low excitation fluencies. To illustrate the photoluminescence enhancements in these quantum dots, we conducted comprehensive composition and surface characterizations and determined the time- and temperature-dependent photoluminescence…
Citation impact
- FWCI
- 135.33
- Percentile
- 100%
- References
- 49
Authors
9Topics & keywords
- Photoluminescence
- Quantum dot
- Quantum yield
- Materials science
- Optoelectronics
- Electroluminescence
- Exciton
- Luminescence
- Affordable and clean energy