Intense Dark Exciton Emission from Strongly Quantum Confined CsPbBr$_3$ Nanocrystals

26 Mar 2020 Rossi Daniel Liu Xiaohan Lee Yangjin Khurana Mohit Puthenpurayil Joseph Kim Kwanpyo Akimov Alexey Cheon Jinwoo Son Dong Hee

Dark ground state exciton in semiconductor nanocrystals has been a subject of much interest due to its long lifetime attractive for applications requiring long-lived electronic or spin states. Significant effort has been made recently to explore and access the dark exciton level in metal halide perovskite nanocrystals, which are emerging as a superior source of photons and charges compared to other existing semiconductor nanocrystals... (read more)

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