Low temperature synthesis of CsPbI3sub-micrometer wires with tailored emission band for flexible X-ray phosphors applications

Junqian Zhao, Huaina Yu, Shusheng Pan, Shang Zhou, Li Zhong, Hua Wang, Yuan Yuan Luo, Siu Fung Yu, Guanghai Li

Research output: Journal article publicationJournal articleAcademic researchpeer-review

5 Citations (Scopus)

Abstract

CsPbI3sub-micrometer wires were synthesized by one-pot solution method at near room temperature. The wires are single crystalline with [100] orientation. An strong emission band centered at 470 nm was observed under ultraviolet excitation, and the emission intensity and bandwidth are dependent on the molar ratio of CsI/PbI2in the wires. A bright green emission with a lifetime of several tens ns was observed when excited with a soft X-ray, and the spectral response range can be modulated by the molar ratio of CsI/PbI2in the wires. The growth mechanism of the wires was discussed, and the influences of the cycling strain and X-ray irrigation time on the X-ray excited optical luminescence of the CsI/PbI2wires/PET film were analyzed and discussed.
Original languageEnglish
Pages (from-to)454-459
Number of pages6
JournalJournal of Luminescence
Volume188
DOIs
Publication statusPublished - 1 Aug 2017

ASJC Scopus subject areas

  • Biophysics
  • Atomic and Molecular Physics, and Optics
  • Chemistry(all)
  • Biochemistry
  • Condensed Matter Physics

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