All-inorganic cesium lead halide perovskite nanocrystals for photodetector applications. Issue 10 (21st December 2015)

• Record Type: Journal Article
• Authors: Ramasamy, Parthiban; Lim, Da-Hye; Kim, Bumjin; Lee, Seung-Ho; Lee, Min-Sang; Lee, Jong-Soo
• Is Part Of: Chemical communications. Volume 52:Issue 10(2016)
• Page Start: 2067
• Page End: 2070
• Publication Date: 2015-12-21
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c5cc08643d
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : A simple and reproducible halide ion exchange method is reported, which can tune the optical properties in CsPbX3 (X = Cl, Br, and I) nanocrystals. CSPbI3 nanocrystals exhibit promising application in photodetectors. Abstract : 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 .