Structure and nanomechanical properties of CdTe thin films


PÜRÇEK G. , BACAKSIZ E. , Miskioglu I.

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, vol.198, pp.202-206, 2008 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 198
  • Publication Date: 2008
  • Doi Number: 10.1016/j.jmatprotec.2007.07.005
  • Title of Journal : JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
  • Page Numbers: pp.202-206

Abstract

CdTe thin films were produced by vacuum evaporation on glass sheets at substrate temperatures of 100K and 300K. The structural properties of the CdTe thin films were investigated through X-ray diffraction (XRD) technique and scanning electron microscopy (SEM). The mechanical properties (hardness, modulus and coating adhesion) were measured by nanoindenation and scratching techniques. XRD studies showed that the crystallinity of CdTe films improved with increasing substrate temperature. The grain size increased with the increase of substrate temperature and clearly facetted morphology was observed. The indentation hardness and modulus of CdTe thin films decreased with increasing grain size. The hardness and modulus increased gradually with increasing indentation depth due to the substrate effect. The adhesion of the coating increased with decreasing grain size. (C) 2007 Elsevier B.V. All rights reserved.