Estimation of the Band Gap of InPO4

J. F. Wager, C. W. Wilmsen, L. L. Kazmerski

Research output: Contribution to journalArticlepeer-review

18 Scopus Citations


The band gap of a thin layer of InPO4 was estimated to be 4.5 eV using a novel approach employing ultraviolet photoelectron spectroscopy and electron energy loss spectroscopy. The technique measures the conduction-band minimum and valence-band maximum referenced to the In 4d core line energy. Since this technique is highly surface sensitive, it can be used to measure the band gap of a thin layer. This parameter is difficult to measure in such layers using conventional techniques.

Original languageAmerican English
Pages (from-to)589-591
Number of pages3
JournalApplied Physics Letters
Issue number7
StatePublished - 1983

Bibliographical note

Work performed by Hughes Research Laboratories, Malibu, California; Department of Electrical Engineering, Colorado State University, Fort Collins, Colorado; and Solar Energy Research Institute, Golden, Colorado

NREL Publication Number

  • ACNR/JA-213-4096


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