FLEXIBLE SOLAR CELLS BASED ON COPPER TAPE: HYBRID ORGANIC-INORGANIC STRUCTURES

摘要

Hybrid CISCuT solar cells on the basis of multilayer Cu- In-S (CIS) photoabsorber on Cu-tape in combination with organic buffer layers of Zn-phthalocyanine (ZnPc) and poly(3,4-ethylenedioxythiophene) (PEDOT) doped with polystyrenesulfonate (PSS) were prepared using vacuum evaporation and spin-casting techniques. In order to prepare solar cells with active area of 0.56 cm2, the appropriate deposition parameters and thickness of ZnPc and PEDOT layers were selected experimentally. For preparation of semitransparent chromium-golden contactwindow layers, chromium and gold were evaporated on the surface of ZnPc and PEDOT-PSS films. It was found, that intermediate chromium layer improves PV properties for the structures with organic buffer layers. The best structure with PEDOT-PSS buffer layer showed an opencircuit voltage of 480 mV, a short-circuit current density of 14.8 mA/cm2 and a photoconversion efficiency of 2.15 % under white light illumination with an intensity of 100 mW/cm2.