Synthesis and characterization of Mn doped ZnCdS core shell nanostructures QDs using a chemical precipitation route

Manpreet Kaur, O. P. Pandey, Manoj Sharma

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

3 Citations (Scopus)

Abstract

With advancement in time, researchers has drawn great attention in the synthesis and characterization of mono dispersed alloyed nanocomposites of II-VI compounds. Ternary semiconductor alloyed ZnCdS quantum dots (QD's) exhibit properties intermediate between those of ZnS and CdS. It shows high absorption coefficients, a composition tunable and size tunable band gap. Moreover, ZnCdS alloyed NC's display unique composition dependent properties distinct from those of their bulk counterparts. The most striking feature of the alloyed NC's nanocrystals is their unusual long time stability in emission wavelength. ZnCdS alloyed QD's at room temperature has been synthesized using chemical precipitation method. Undoped and Mn2+ doped ZnCdS QDs have been synthesized and studied. UV-visible absorption spectrum shows absorbance in the visible region and photoluminescence (PL) emission spectra of the doped ZnCdS QD's shows orange emission in comparison to weak blue emission from undoped QDs. The crystallite size is calculated from the XRD patterns. The experimental results indicate that this easy synthesis route would prove a versatile approach for the preparation of doped and undoped ZnCdS QD's.

Original languageEnglish
Title of host publication2nd International Conference on Emerging Technologies
Subtitle of host publicationMicro to Nano 2015, ETMN 2015: Contributory Papers Presented in 2nd International Conference on Emerging Technologies: Micro to Nano 2015
EditorsNiti Nipun Sharma, Ford Lumban Gaol, Jamil Akhtar
PublisherAmerican Institute of Physics
ISBN (Electronic)9780735413719
DOIs
Publication statusPublished - 2016
Externally publishedYes
EventInternational Conference on Emerging Technologies 2015: Micro to Nano - Jaipur, Rajasthan, India
Duration: 24 Oct 201525 Oct 2015
Conference number: 2nd
https://aip.scitation.org/toc/apc/1724/1

Publication series

NameAIP Conference Proceedings
Volume1724
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference on Emerging Technologies 2015
Abbreviated titleETMN 2015
Country/TerritoryIndia
CityJaipur, Rajasthan
Period24/10/1525/10/15
Internet address

Keywords

  • chemical precipitation
  • photoluminescence
  • ternary semiconductor

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