Ligand-controlled formation and photoluminescence properties of CH3NH3PbBr3 nanocubes and nanowires

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Feng Zhang
  • Cheng Chen
  • Stephen V. Kershaw
  • Changtao Xiao
  • Junbo Han
  • Bingsuo Zou
  • Xing Wu
  • Shuai Chang
  • Yuping Dong
  • Haizheng Zhong

Related Research Unit(s)

Detail(s)

Original languageEnglish
Pages (from-to)303-310
Journal / PublicationChemNanoMat
Volume3
Issue number5
Online published4 Apr 2017
Publication statusPublished - May 2017

Abstract

Light-emitting halide perovskites are currently emerging as promising solution-processed materials for optoelectronic applications, and correlations between their physical properties and morphologies are important drivers to guide material and device optimization. There is still a lack of precise control of the morphology in colloidal perovskite materials, and in the related studies of their shape-dependent optical properties. Capitalizing on our previous works on the ligand-assisted reprecipitation synthesis of colloidal perovskite nanocrystals, we have addressed the role of key experimental parameters in determining the degree of supersaturation that drives the crystallization of CH3NH3PbBr3 precursors. By adjusting the amount of ligands, we fabricated single crystalline CH3NH3PbBr3 nanocubes (size: ≈500 nm) and nanowires (length: 2–4.5 μm, width: ≈100 nm), and conducted steady-state, time-resolved, excitation power and temperature-dependent photoluminescence measurements to investigate their shape-dependent photoluminescence properties.

Research Area(s)

  • CH3NH3PbBr3, Crystallization, Halide perovskites, Nucleation and growth, Shape control

Citation Format(s)

Ligand-controlled formation and photoluminescence properties of CH3NH3PbBr3 nanocubes and nanowires. / Zhang, Feng; Chen, Cheng; Kershaw, Stephen V.; Xiao, Changtao; Han, Junbo; Zou, Bingsuo; Wu, Xing; Chang, Shuai; Dong, Yuping; Rogach, Andrei; Zhong, Haizheng.

In: ChemNanoMat, Vol. 3, No. 5, 05.2017, p. 303-310.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review