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Silver Dopant-Induced Effect on Structural and Optoelectronic Properties of CdSe Thin Films

  • Jagdish Kaur
  • Ramneek Kaur
  • S. K. Tripathi
Article
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Abstract

Thin films of CdSe and silver (Ag)-doped CdSe have been prepared on glass substrates by thermal evaporation in argon gas atmosphere. X-ray diffraction pattern indicates the presence of hexagonal structure with preferred orientation along (100) plane. Elemental composition of the thin films has been analyzed using energy dispersive X-ray analysis. Scanning electron microscopy has been used to investigate the morphology of the thin films. Transmission electron microscope reveals spherical nature of nanoparticles. A decrease in the band gap due to the formation of band tails in the band gap with increase in Ag doping in CdSe lattice has been observed. Photoluminescence spectra indicate redshift in band edge emission peak with increase in Ag doping in CdSe. Electrical conductivity measurements are also studied, and two types of conduction mechanisms taking part in the transport phenomena are observed. Hall measurements indicate n-type behavior of undoped and Ag-doped CdSe thin films.

Keywords

Semiconductors Thin films Vapor deposition Electron microscopy Electrical properties 

Notes

Acknowledgements

This work was supported financially by the Major Research Project of University Grant Commission (UGC), N. Delhi, India (No. 42-781/2013 (SR)).

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Copyright information

© The Chinese Society for Metals and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.PG Department of PhysicsDAV CollegeAmritsarIndia
  2. 2.Department of PhysicsAkal UniversityTalwandi SaboIndia
  3. 3.Department of PhysicsPanjab UniversityChandigarhIndia

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