Cots, Ainhoa, Bonete, Pedro, Sebastián, David, Baglio, Vincenzo, Aricò, Antonino Salvatore, Gómez, Roberto
Toward Tandem Solar Cells for Water Splitting Using Polymer Electrolytes
ACS Applied Materials & Interfaces. 2018, 10(30): 25393-25400. doi:10.1021/acsami.8b06826
URI: http://hdl.handle.net/10045/78327
DOI: 10.1021/acsami.8b06826
ISSN: 1944-8244 (Print)
Abstract: 
Tandem photoelectrochemical cells, formed by two photoelectrodes with complementary light absorption, have been proposed to be a viable approach for obtaining clean hydrogen. This requires the development of new designs that allow for upscaling, which would be favored by the use of transparent polymer electrolyte membranes (PEMs) instead of conventional liquid electrolytes. This article focuses on the photoelectrochemical performance of a water-splitting tandem cell based on a phosphorus-modified α-Fe2O3 photoanode and on an iron-modified CuO photocathode, with the employment of an alkaline PEM. Such a photoelectrochemical cell works even in the absence of bias, although significant effort should be directed to the optimization of the photoelectrode/PEM interface. In addition, the results reveal that the employment of polymer electrolytes increases the stability of the device, especially in the case of the photocathode.
Keywords:Bias-free water splitting, Hematite, Copper(II) oxide, Photoelectrochemical cell, Polymer electrolyte membrane
American Chemical Society
info:eu-repo/semantics/article