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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/100/2221

Title: Fluorescent manganese-doped zinc sulphide nanoparticles for spectral shifting
Authors: SEN, S
SHARMA, P
SOLANKI, CS
BANDYOPADHYAYA, R
Keywords: zns thin-films
chemical bath deposition
pbs quantum dots
optical-properties
room-temperature
silica matrix
photoluminescence
nanocrystals
luminescence
mn2+
Issue Date: 2010
Publisher: IEEE
Citation: 35TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE,
Abstract: Spectral shifting by luminescent nanoparticles is expected to enhance solar cell performance by avoiding wastage of high energy photons. Manganese-doped zinc sulphide nanoparticles, with a PL emission peak around 600 nm, were selected as a possible candidate for such a luminescent down-shifting material. To investigate their fluorescence properties, ZnS:Mn nanoparticles were synthesized by a chemical route using thiourea to limit the reaction rate and achieve controlled, uniform formation of nanoparticles. Incipient ZnS: Mn nanoparticles were encapsulated in ZnS shells by employing the in-situ thermal decomposition of pre-formed zinc-thiourea complex. The resulting core-shell nanoparticles were dispersed in a protective matrix composed of sodium hexametaphosphate. TEM studies showed the formation of spherical and distinct ZnS: Mn nanoparticles in the size range 50-100 nm, while UV-Vis spectra clearly showed quantum confinement effects.
URI: http://dspace.library.iitb.ac.in/xmlui/handle/10054/15648
http://hdl.handle.net/100/2221
ISBN: 978-1-4244-5891-2
ISSN: 0160-8371
Appears in Collections:Proceedings papers

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