Precise control of TiO2 overlayer on hematite nanorod arrays by ALD for the photoelectrochemical water splitting

Author:

Wang Jiao1,Liccardo Letizia2,Habibimarkani Heydar2,Wierzbicka Ewa3ORCID,Schultz Thorsten45ORCID,Koch Norbert45ORCID,Moretti Elisa2,Pinna Nicola1ORCID

Affiliation:

1. Department of Chemistry, The Center for the Science of Materials Berlin, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany

2. Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, Via Torino 155, 30172 Venezia Mestre, Italy

3. Department of Functional Materials and Hydrogen Technology, Faculty of Advanced Technologies and Chemistry, Military University of Technology, 2 Kaliskiego Street, Warsaw 00908, Poland

4. Institut für Physik and IRIS Adlershof, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 6, 12489 Berlin, Germany

5. Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany

Abstract

The short lifetime of electron–hole pairs and high electron–hole recombination rate at surface states significantly limit the practical applications of hematite (α-Fe2O3) photoanodes in photoelectrochemical (PEC) water splitting.

Funder

China Scholarship Council

Narodowa Agencja Wymiany Akademickiej

Publisher

Royal Society of Chemistry (RSC)

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