We report a facile and large-scale solution fabrication of cuprous oxide (Cu 2 O) nanowires/nanorods and 3D porous Cu 2 O networks and their application as photocathodes for efficient solar water splitting. The growth mechanism and structural characterization of 3D porous Cu 2 O networks are studied in detail. The photocathodic performance of Cu 2 O electrodes prepared under different growth conditions is investigated in a pH-neutral medium. The porous Cu 2 O network photocathodes exhibit large photocurrent, high spectral photoresponse, and incident photon-to-current efficiency compared with Cu 2 O nanowire/nanorod photoelectrodes. The photoelectrochemical stability of the 3D Cu 2 O network is significantly improved by applying multi-layer metal oxide protection.
Alireza Kargar, Soheil Seena Partokia, Mu Tong Niu, Paniz Allameh, Muchuan Yang, Salomón May, Justin S Cheung, Ke Sun, Ke Xu and Deli Wang
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Alireza Kargar, Soheil Seena Partokia, Mu Tong Niu, Paniz Allameh, Muchuan Yang, Salomón May, Justin S Cheung, Ke Sun, Ke Xu and Deli Wang
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