Structural and Optical Properties of Pristine and Doped CsPbBr3Perovskite

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The influence silver substitution at 0%-5% on the fundamental absorption edge of CsPbBr3 perovskites was studied. Here we examine the optical performance (diffuse reflectance spectroscopy) from Ag-CsPbBr3 perovskites samples. The investigation of the powder X-ray diffraction (XRD) of the CsPbBr3 perovskites indicates that an orthorhombic-phase structure. Our results imply that Ag+ ions serve as substitutional dopants to replace Pb2+ ions in the perovskites. Photoluminescence (PL) and absorption studies show that no major changes are made in the perovskite bandgaps, and the charging transfers are facilitated with different molecular Ag donors at their interface. This work demonstrates monovalent doping's tunability on halide perovskites' optical properties, shedding light toward their prospective applications in varied optoelectronic devices.

Original languageEnglish
Article number012044
JournalIOP Conference Series: Earth and Environmental Science
Issue number1
StatePublished - 23 Mar 2021
Event2021 6th International Conference on Green Materials and Environmental Engineering, GMEE 2021 - Changsha, Virtual, China
Duration: 3 Feb 2021 → …

Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)


  • Diffuse Reflectance Spectroscopy
  • Doping
  • Halide Perovskites
  • PL


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