Photoluminescence Studies of CdS Nanoparticles

  • Kirti Vishwakarma
  • O. P. Vishwakarma
  • S. K. Pandey
Conference paper
Part of the Lecture Notes in Bioengineering book series (LNBE)

Abstract

II–VI semiconductor nanoparticles are presently of great interest for their practical applications such as zero-dimensional quantum confined materials and for their applications in optoelectronics and photonics. The optical properties get modified dramatically due to the confinement of charge carriers within the nanoparticles. Similar to the effects of charge carriers on optical properties, confinement of optical and acoustic phonon leads to interesting changes in the phonon spectra. In the present work, we have synthesized nanoparticles of cadmium sulfide (CdS) using chemical precipitation technique. A detailed study on CdS sample is done by characterizing photoluminescence (PL) spectra. Photoluminescence studies of CdS nanoparticle samples show a red shift. The intensity of red luminescence decreases and its peak position shifts to the lower energy with increasing size of the particles.

Keywords

Cadmium sulfide Nanoparticles Photoluminescence spectra Optical properties 

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Copyright information

© Springer India 2013

Authors and Affiliations

  • Kirti Vishwakarma
    • 1
  • O. P. Vishwakarma
    • 1
  • S. K. Pandey
    • 2
  1. 1.Department of Engineering PhysicsGyan Ganga College of TechnologyJabalpurIndia
  2. 2.Rani Durgawati VishwavidalayaJabalpurIndia

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