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Opto-Electrical Investigation of Zn Metal-Doped CdS and Their Application in Soft Lithographic Technique
- Source :
- Sains Malaysiana. 49:1875-1890
- Publication Year :
- 2020
- Publisher :
- Penerbit Universiti Kebangsaan Malaysia (UKM Press), 2020.
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Abstract
- Un-doped CdS and Zn metal-doped CdS (0.1-0.5 M) were synthesized by chemical precipitation method. Properties like optical band gap and conductivity were determined by different characterization techniques. UV-Visible spectroscopy was applied to estimate the band gap where it showed a significant blue shift due to quantum confinement effect. Size determined by scanning electron microscopy (SEM) was found to be in nanorange from 41 to 60 nm for both un-doped and metal doped CdS nanocrystals. EDAX confirmed the doping by showing peak for Zn. XRD (X-ray diffraction) showed the lattice structure to be cubic for the synthesized nanoparticles and conductivity for un-doped CdS was 7.69E-6 Ω-1m-1 where it changes to 9.25E-6 Ω-1 m-1 and 7.98E-6 Ω-1m-1 for 0.2 M and 0.5 M Zn-doped CdS, respectively. In order to obtain good results, nanocrystals having highest conductivity are used in soft lithographic technique. Here µTM (micro transfer-molding) was followed for patterning with PDMS (poly-(dimethylsiloxane)) mold and silicon substrate for better results.
Details
- ISSN :
- 01266039
- Volume :
- 49
- Database :
- OpenAIRE
- Journal :
- Sains Malaysiana
- Accession number :
- edsair.doi...........b0289a470f765fb00a9dc74626255d17