Journal
CHEMICAL COMMUNICATIONS
Volume 52, Issue 10, Pages 2067-2070Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cc08643d
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Funding
- DGIST R&D Program of the Ministry of Science, ICT and Future Planning [15-BD-0401]
- Leading Foreign Research Institute Recruitment Program through NRF - MEST [2012K1A4A3053565]
- Technological Innovation R&D Program - Small and Medium Business Administration (SMBA, Korea) [S2167531]
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Herein, we describe simple, fast and reproducible halide ion exchange reactions in CsPbX3 (X = Cl, Br, I) nanocrystals (NCs) at room temperature. Through the simple adjustment of the halide ion concentration, the photoluminescence of these NCs can be tuned over the entire visible region (425-655 nm). Photodetector devices based on entirely inorganic CsPbI3 NCs are demonstrated for the first time. The photodetectors exhibited a good on/off photocurrent ratio of 10(5).
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