Vertically aligned Ta3N5 nanorod arrays for solar-driven photoelectrochemical water splitting

Yanbo Li, Tsuyoshi Takata, Dong Kyu Cha, Kazuhiro Takanabe, Tsutomu Minegishi, Jun Kubota, Kazunari Domen

Research output: Contribution to journalArticlepeer-review

321 Scopus citations

Abstract

A vertically aligned Ta3N5 nanorod photoelectrode is fabricated by through-mask anodization and nitridation for water splitting. The Ta3N5 nanorods, working as photoanodes of a photoelectrochemical cell, yield a high photocurrent density of 3.8 mA cm -2 at 1.23 V versus a reversible hydrogen electrode under AM 1.5G simulated sunlight and an incident photon-to-current conversion efficiency of 41.3% at 440 nm, one of the highest activities reported for photoanodes so far. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Original languageEnglish (US)
Pages (from-to)125-131
Number of pages7
JournalAdvanced Materials
Volume25
Issue number1
DOIs
StatePublished - Sep 18 2012

ASJC Scopus subject areas

  • Mechanics of Materials
  • Materials Science(all)
  • Mechanical Engineering

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