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Updated: Mar 28, 2026

Facile Synthesis of Colloidal Lead Halide Perovskite Nanoplatelets via Ligand-Assisted Reprecipitation
Published on: October 1, 2019
All-inorganic cesium lead halide perovskite nanocrystals for photodetector applications
Parthiban Ramasamy1, Da-Hye Lim1, Bumjin Kim1
1Department of Energy Systems Engineering, DGIST, Daegu, 711-873, Republic of Korea. jslee@dgist.ac.kr.
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).

