Cu2S-deposited mesoporous NiO photocathode for a solar cell

KRICT-EPFL Global Research Laboratory, Advanced Materials Division, Korea Research Institute of Chemical Technology, 19 Sinseongno, Yuseong, Daejeon 305-600, Republic of Korea
Chemical Physics Letters (Impact Factor: 1.99). 08/2009; 477(4-6). DOI: 10.1016/j.cplett.2009.07.014
Source: OAI

ABSTRACT The p-type Cu2S layer is deposited onto p-type mesoporous NiO electrode by spray pyrolysis deposition method using alcoholic solution of ethylenediamine-copper(II) complex and thiourea. A solar cell using Cu2S-deposited NiO mesoporous photocathode has been fabricated for the first time. The incident photon to current conversion efficiency (IPCE) values are found to be 0.8-1.8% for the newly designed NiO/Cu2S solar cell. It was shown that the p-type NiO/Cu2S structure could be successfully utilized to fabricate p-type solar cell and the possible mechanism for charge transfer is also discussed. (C) 2009 Published by Elsevier B. V.