Effect of Cu and Cl on EVT-CdTe solar cells

  title={Effect of Cu and Cl on EVT-CdTe solar cells},
  author={Vamsi K. Evani and Md Mohibul Islam Khan and Shamara Collins and Vasilios Palekis and P. Bane and D. L. Morel and Christos S. Ferekides},
  journal={2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC)},
The stoichiometry of CdTe plays an important role in the formation of point defects and can therefore impact solar cell performance. In this study, the effect of Cu and Cl on CdTe films is investigated as a function of stoichiometry. The stoichiometry of CdTe films was altered by varying the gas phase composition (amount of Cd and Te vapors) during the Elemental Vapor Transport (EVT) deposition process. Superstrate CdTe/CdS solar cells were fabricated using EVT-CdTe. Controlled amounts of Cu… CONTINUE READING