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• W2804494466 abstract "Black silicon (bSi) has recently captured research attention in photoelectrochemical (PEC) solar-to-hydrogen (STH) conversion devices. Because nanostructuring of silicon retains the photovoltaic attributes of the material, it also provides a range of excellent physicochemical properties, such as a vast active-site-rich electrochemical interface, owing to a high aspect ratio, and important light-scattering attributes, which significantly improve photoconversion. One method to gain control over p-type bSi interface energetics is surface inversion of the p-type interface by phosphorus doping to introduce a shallow n+ -emitter layer, which provides a thin p-n junction at the interface of the nanostructures. Although this concept has been suggested in the literature, it has not been demonstrated experimentally for a platinum/palladium co-catalysed bSi photocathode device for STH conversion. Herein, preliminary investigations and proof-of-concept studies are reported for the fabrication and PEC characterisation of surface-inverted p-type bSi photocathodes prepared by wet chemical etching. The PEC tests on p-bSi|n+ photocathodes show that, for both metal nanoparticles (Pt and Pd), the catalytic activity for proton conversion is increased; this is evident from an anodic shift in the onset potentials shifts to 0.24 and 0.29 V and an increase in photocurrent by 9 and 13.8 mA cm-2 , respectively, at 0 V versus a reversible hydrogen electrode, as a result of introducing the emitter layer." @default.
• W2804494466 created "2018-06-01" @default.
• W2804494466 creator A5017109393 @default.
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• W2804494466 date "2018-06-06" @default.
• W2804494466 modified "2023-10-14" @default.
• W2804494466 title "Photoelectrochemical Characterisation on Surface‐Inverted Black Silicon Photocathodes by Using Platinum/Palladium Co‐catalysts for Solar‐to‐Hydrogen Conversion" @default.
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• W2804494466 doi "https://doi.org/10.1002/cplu.201800097" @default.
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• W2804494466 hasPublicationYear "2018" @default.
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