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IJPAP Vol.44(02) [February 2006] >

Title: Measurement of structural and optical band gaps of Cd1-xZnxS (x = 4 and 6) nanomaterials
Authors: Sharma, T P
Patidar, Dinesh
Saxena, N S
Sharma, Kananbala
Keywords: Nanoparticle
Absorption spectra
Chemical method
Energy band gap
Grain size
Issue Date: Feb-2006
Publisher: CSIR
IPC CodeB82B
Abstract: The sulphides of cadmium and zinc are widely used materials due to their suitable energy band gaps. Their energy band gap depends on the particle size. The materials have been prepared using a simple solution of CdCl2 and ZnCl2 mixed in proper ratio without use of thiophenol. Precipitate of CdZnS is obtained by passing H2S, liberated from heated thiourea through this solution. It is confirmed by X-ray diffraction (XRD) and optical band gap estimation that materials prepared are nano-materials. The optical band gap of these materials has been determined in order to establish a relationship between energy band gap of bulk and nanomaterial. It has been noticed that optical band increases with the increase of Zn concentration in CdZnS.
Page(s): 125-128
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.44(02) [February 2006]

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