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    • Keywords

       

      CdCl$_2$ treatment; thin film solar cells; photo-conversion efficiency.

    • Abstract

       

      We report the effects of annealing in conjunction with CdCl$_2$ treatment on the photovoltaic properties of CdTe/Zn$_{0.1}$Cd$_{0.9}$S thin film solar cells. CdTe layer is subjected to dry CdCl$_2$ treatment by thermal evaporation method and subsequently, heat treated in air using a tube furnace from 400 to 500$^{\circ}$C. AFM and XRD results show improved grain size and crystallographic properties of the CdTe film with dry CdCl$_2$ treatment. This recrystallization and grain growth of the CdTe layer upon CdCl$_2$ treatment translates into improved photo-conversion efficiencies of CdTe/Zn$_{0.1}$Cd$_{0.9}$S cell. The results of dry CdCl$_2$ treatment were compared with conventional wet CdCl$_2$ treatment. Photo-conversion efficiency of 5.2% is achieved for dry CdCl$_2$-treated cells in comparison with 2.4% of wet-treated cell at heat treatment temperature of 425$^{\circ}$C.

    • Author Affiliations

       

      SONAL SINGHAL1 AMIT KUMAR CHAWLA2 HARI OM GUPTA3 RAMESH CHANDRA4

      1. Department of Electrical Engineering, Shiv Nadar University, Gautam Buddha Nagar, Noida 201308, India
      2. Department of Physics, School of Engineering, University of Petroleum & Energy Studies, Dehradun 248007, India
      3. Jaypee Institute of Information Technology, Gautam Buddha Nagar, Noida 201304, India
      4. Institute Instrumentation Center, IIT Roorkee, Roorkee 247667, India
    • Dates

       
  • Bulletin of Materials Science | News

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