Stabilization of organometallic halide perovskite nanocrystals in aqueous solutions and their applications in copper ion detection

Chunqing Ma; Ming-Fai Lo; Chun-Sing Lee

doi:10.1039/c8cc02221f

Stabilization of organometallic halide perovskite nanocrystals in aqueous solutions and their applications in copper ion detection

Chem Commun (Camb). 2018 May 31;54(45):5784-5787. doi: 10.1039/c8cc02221f.

Authors

Chunqing Ma¹, Ming-Fai Lo, Chun-Sing Lee

Affiliation

¹ Center of Super-Diamond and Advanced Films (COSDAF) and Department of Chemistry, City University of Hong Kong, Hong Kong SAR, P. R. China. mingflo@cityu.edu.hk apcslee@cityu.edu.hk.

PMID: 29781482
DOI: 10.1039/c8cc02221f

Abstract

Stabilization of two-dimensional (2D) PEA2PbI4 (PEA is phenethylammonium) perovskite nanocrystals (PNCs) in water is achieved. By inhibiting the desorption process, the PNCs show exceptional stability for more than 2 months in PEA+ aqueous solutions. Stabilized PNCs are successfully applied for probing Cu2+ in aqueous solution.