Synergistic strain engineering of perovskite single crystals for highly stable and sensitive X-ray detectors with low-bias imaging and monitoring
Jilin University · State Key Laboratory on Integrated Optoelectronics · +5 more institutions
Abstract
Abstract Although three-dimensional metal halide perovskite (ABX 3 ) single crystals are promising next-generation materials for radiation detection, state-of-the-art perovskite X-ray detectors include methylammonium as A-site cations, limiting the operational stability. Previous efforts to improve the stability using formamidinium–caesium-alloyed A-site cations usually sacrifice the detection performance because of high trap densities. Here we successfully solve this trade-off between stability and detection performance by synergistic composition engineering, where we include A-site alloys to decrease the trap density and B-site dopants to release the microstrain induced by A-site alloying. As such, we…
Citation impact
- FWCI
- 32.59
- Percentile
- 100%
- References
- 59
Authors
13Topics & keywords
- Perovskite (structure)
- Materials science
- Detector
- Formamidinium
- X-ray detector
- Thermal stability
- Optoelectronics
- Limiting