Temperature-induced irreversible change of ZnO optical energy gap

Document Type

Conference Proceeding

Publication Date

1-18-2012

Department

Department of Materials Science and Engineering

Abstract

It is generally recognized that the change of ZnO optical properties due to high-temperature treatment is reversible. However, herein, it is reported that high-temperature treatment in air caused an irreversible decrease in ZnO optical energy gap (E g). The irreversible decrease in E g was enhanced with increasing treatment temperature. Furthermore, it was found that the irreversible decrease in E g can be attributed to the enlargement of ZnO crystal particles.

Publisher's Statement

© 2011 American Chemical Society. Publisher’s version of record: https://doi.org/10.1021/ie202001s

Publication Title

Industrial and Engineering Chemistry Research

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