Structural and optical investigation of semiconductor CdSe/CdS core-shell quantum dot thin films

Sharma, AB and Sharma, Sudhir Kumar and Sharma, M and Pandey, RK and Reddy, DS (2009) Structural and optical investigation of semiconductor CdSe/CdS core-shell quantum dot thin films. In: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 72 (2). pp. 285-290.

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Abstract

Highly luminescent CdSe/CdS core-shell nanocrystals have been assembled on indium tin oxide (ITO) coated glass substrates using a wet synthesis route. The physical properties of the quantum dots (QD) have been investigated using X-ray diffraction, transmission electron microscopy and optical absorption spectroscopy techniques. These quantum dots showed a strong enhancement in the near band edge absorption. The in situ luminescence behavior has been interpreted in the light of the quantum confinement effect and induced strain in the core-shell structure.

Item Type:	Journal Article
Publication:	Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
Publisher:	Elsevier Science
Additional Information:	Copyrightof this article belongs to Elsevier Science.
Keywords:	Semiconductor quantum dots;X-ray diffraction studies (XRD); Transmission electron microscopy (TEM);Optical absorption spectroscopy.
Department/Centre:	Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	06 Nov 2009 04:48
Last Modified:	19 Sep 2010 05:29
URI:	http://eprints.iisc.ac.in/id/eprint/19662

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