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The relationship of solid-state plasticity to mechanochromic luminescence in difluoroboron avobenzone polymorphs

Krishna, Gamidi Rama; Mangalampalli, S.R.N. Kiran; Fraser, Cassandra L; Ramamurty, U; Reddy, C Malla


In solid-state mechanochromic luminescence (ML) materials, it remains a challenge to establish the origin of fluorescence color changes upon mechanical action and to determine why only some fluorophores exhibit ML behavior. The study of mechanical properties by nanoindentation, followed by ML experiments on green- and cyan-emitting polymorphs of difluoroboron avobenzone reveals that upon smearing, the plastically deformable cyan form shows a prominent color change to yellow, while in the harder...[Show more]

CollectionsANU Research Publications
Date published: 2013
Type: Journal article
Source: Advanced Functional Materials
DOI: 10.1002/adfm.201201896


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