Porous silicon nanoparticles as a nanophotocathode for photoelectrochemical water splitting

Soundarrajan Chandrasekaran, Steven J P McInnes, Thomas J. MacDonald, Thomas Nann, Nicolas H. Voelcker

Research output: Contribution to journalArticleResearchpeer-review

20 Citations (Scopus)


The antireflective properties and nanometer sizes of silicon nanoparticles can be exploited for improved solar energy conversion. We report on using porous silicon nanoparticles as a photocathode for photoelectrochemical water splitting. An enhancement in the photocurrent density was observed when porous silicon nanoparticles were decorated with indium phosphide nanocrystals and a bio-inspired iron sulfur carbonyl electrocatalyst. Our system gave a photocurrent density of -2.2 μA cm-2 while generating hydrogen gas.

Original languageEnglish
Pages (from-to)85978-85982
Number of pages5
JournalRSC Advances
Issue number104
Publication statusPublished - 2015
Externally publishedYes

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