Energy gap-refractive index considerations in perovskites

Aneer Lamichhane, Nuggehalli M. Ravindra

Research output: Contribution to journalArticlepeer-review


This work proposes a simple model for determining the relationship between static refractive index and energy bandgap. Some evidence from the literature agrees well with the proposed equations. The notions of tolerance factor and octahedral factor are used to establish the upper and lower boundaries of the refractive index in oxide and halide perovskites.

Original languageEnglish (US)
Pages (from-to)423-429
Number of pages7
JournalEmerging Materials Research
Issue number4
StatePublished - Aug 24 2022

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics


  • energy bandgap
  • perovskites
  • refractive index


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