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|Title:||Light-induced photoluminescence switching using liquid crystal-dispersed quantum dots||Authors:||Hsiao, Vincent K. S.
Prasad, Paras N.
|Keywords:||DRNTU::Engineering::Electrical and electronic engineering||Issue Date:||2012||Series/Report no.:||IEEE photonics journal||Abstract:||Light-induced photoluminescence (PL) switching using azobenzene-doped liquid crystal (LC)-dispersed quantum dots (QDs) is demonstrated in a format of LC cell and LC-infiltrated tube. Before light irradiation, excitation photons undergo multiple scattering events before emission out of the LC cell, and PL intensity is high. Upon the light irradiation, the trans-to-cis photoisomerization of azobenzene makes the QD-dispersed LCs highly transparent, thus allowing most excitation photons to pass through LCs and decrease PL intensity. This demonstration may allow a new modulating technique for future development of light-switchable, QD-emission-based display or photonic devices.||URI:||https://hdl.handle.net/10356/98951
|ISSN:||1943-0655||DOI:||10.1109/JPHOT.2011.2179289||Rights:||© 2012 IEEE||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||EEE Journal Articles|
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