Different organic compounds are evaluated to form back contact for CdTe photovoltaics (PV) and to study the effect of band alignment. CdTe devices with CdS n-type window layer were fabricated using closed space sublimation (CSS) and organic back contact layers were deposited using dip coating. In order to prepare photovoltaic devices, the appropriate deposition parameters and thicknesses of organic compounds were selected experimentally. The best results were obtained with dip coated PEDOT-PSS aqueous dispersion with high electrical conductivity. The performance of devices with organic back contacts are compared to those with baseline CdTe devices with reduced copper doping. © 2016 IEEE.
cited By 0; Conference of 43rd IEEE Photovoltaic Specialists Conference, PVSC 2016 ; Conference Date: 5 June 2016 Through 10 June 2016; Conference Code:124913
Mab Dangate, Munshi, Ab, Sampath, W. Sb, Boltalina, O. Vc, Strauss, S. Hc, Saravanan, Ca, and Nair, Sd, “Investigation of organic small molecules and polymer compounds for CdTe back contact”, in Conference Record of the IEEE Photovoltaic Specialists Conference, 2016, vol. 2016-November, pp. 1438-1442.