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Origin of mechanoluminescence from Mn-activated ZnAl 2 O 4 : Triboelectricity-induced electroluminescence

Matsui, Hiroaki; Xu, Chao-Nan; Liu, Yun; Tateyama, Hiroshi


Luminescence induced by friction, mechanoluminescence (ML) has been observed for ZnAl2O4: Mn2+ (ZAO:Mn) fabricated by systematically controlling the reducing temperature. The reducing treatment produced lattice defects under a reducing atmosphere. Those defects were associated with Zn and O vacancies through evaporation of ZnO in ZnAl 2O4, which was trapped with a large amount of carrier in the spinel. Results of dependence of ML intensity and integrated intensity for thermoluminescence on the...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
Source: Physical Review B: Condensed Matter and Materials
DOI: 10.1103/PhysRevB.69.235109


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