Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/5580
Title: CdSe quantum dot-dispersed DOBAMBC : an electro-optical study
Authors: Gupta, Swadesh Kumar
Singh, Dharmendra Pratap
Varia, Mahesh
Sagar, Laxmi K.
Kumar, Sandeep
+ 2 Co-Authors
Keywords: Ferroelectric liquid crystals
quantum dots
composite systems
electro-optical properties
Issue Date: May-2013
Publisher: Taylor & Francis
Citation: Liquid Crystals, 2013, Vol. 40, p 528-533
Abstract: Cadmium selenide quantum dot (CdSe QD) has been used as a dopant in ferroelectric liquid crystal (FLC) 2-methylbutyl 4-(4-decyloxybenzylideneamino) cinnamate (DOBAMBC). Effect of CdSe QD in DOBAMBC on its different electro-optical (E-O) properties has been studied in the SmC* phase. The optical micrographs recorded for the pure and composite material are showing good dispersion of QDs in the FLC matrix. Micrographs of unaligned sample cell revealed that CdSe QDs induce homeotropic alignment of FLC molecules. An appreciable change in the value of E-O parameters like tilt angle, spontaneous polarisation and response time with shifting of SmA–SmC* phase transition temperature has been observed for CdSe QD–DOBAMBC composite. The observed properties of composite system have been discussed on the basis of surface properties of QDs in FLC system.
Description: Restricted Access.
URI: http://hdl.handle.net/2289/5580
ISSN: 0267-8292
1366-5855 (online)
Alternative Location: http://dx.doi.org/10.1080/02678292.2012.761735
Copyright: 2013 Taylor & Francis
Appears in Collections:Research Papers (SCM)

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