Loading...

The effect of target annealing temperature on optical and structural properties and composition of CdS thin films prepared by pulsed laser

Mahdavi, S. M ; Sharif University of Technology | 2005

226 Viewed
  1. Type of Document: Article
  2. DOI: 10.1016/j.optmat.2004.04.020
  3. Publisher: Elsevier , 2005
  4. Abstract:
  5. We studied the effect of target annealing temperature on optical and structural properties and composition of CdS thin films prepared by pulsed Nd:YAG laser. Deposited samples from annealed targets at 300 °C showed a mixed cubic and hexagonal structure, a band gap of about 2.56 eV and Cd/S ratio equal 1. This ratio increased to 2.40 and its band gap decreased to 2.46 eV when the sample was annealed at 500 °C for 1 h in air. However, films prepared from annealed targets at 500 °C became dark due to existence of polymorphous phase of CdO. Films changed to transparent yellow color with a hexagonal CdS structure and some peaks related to CdO after annealing above 250 °C in air. Its band gap value increased from 2.36 eV to 2.41 eV after annealing at 250 and 500 °C respectively. © 2004 Elsevier B.V. All rights reserved
  6. Keywords:
  7. Annealing ; Cadmium sulfide ; Neodymium ; Optical properties ; Pulsed laser deposition ; Thermal effects ; Yttrium compounds ; Annealing temperature ; Band gap ; Laser deposition ; Nd:YAG ; Thin films
  8. Source: Optical Materials ; Volume 27, Issue 10 , 2005 , Pages 1583-1586 ; 09253467 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/pii/S0925346704003970?via%3Dihub