Belaidi, A.; Dittrich, Th.; Kieven, D.; Tornow, J.; Schwarzburg, K.; Kunst, M.; Allsop, N.; Lux-Steiner, M.-Ch.; Gavrilov, S.: ZnO-nanorod arrays for solar cells with extremely thin sulfidic absorber. Solar Energy Materials and Solar cells 93 (2009), p. 1033-1036
10.1016/j.solmat.2008.11.035
Abstract:
Solar cellswithanextremelythinsulfidicabsorberhavebeenpreparedbysprayionlayergasreaction (ILGAR)ofIn2S3 on ZnO-nanorodarrays.Astransparentholeconductor,CuSCNwasdepositedonthe coated ZnOnanorodsbyimpregnation.Surfacephotovoltagespectroscopywasappliedtocharacterize states contributingtoexcesscarriergenerationandchargeseparation.Thecharge-selectivecontactis formedattheIn2S3/CuSCNinterfaceregionthestatesofwhichalsocontributesignificantlytothe photocurrent.TheinfluenceofannealingtemperatureandannealingtimeoftheIn2S3/CuSCNcontact region ontheopen-circuitpotential(VOC), short-circuitcurrent(ISC) andfillfactor(FF)wasstudiedin detail. ForsolarcellsbasedonZnO-nanorodarrays(rodlength1.5 mm), efficiencyof2.8%isobtainedat AM1.5.