Skip to content Skip to navigation
University of Warwick
  • Study
  • |
  • Research
  • |
  • Business
  • |
  • Alumni
  • |
  • News
  • |
  • About

University of Warwick
Publications service & WRAP

Highlight your research

  • WRAP
    • Home
    • Search WRAP
    • Browse by Warwick Author
    • Browse WRAP by Year
    • Browse WRAP by Subject
    • Browse WRAP by Department
    • Browse WRAP by Funder
    • Browse Theses by Department
  • Publications Service
    • Home
    • Search Publications Service
    • Browse by Warwick Author
    • Browse Publications service by Year
    • Browse Publications service by Subject
    • Browse Publications service by Department
    • Browse Publications service by Funder
  • Help & Advice
University of Warwick

The Library

  • Login
  • Admin

Advancing semiconductor–electrocatalyst systems : application of surface transformation films and nanosphere lithography

Tools
- Tools
+ Tools

Brinkert, Katharina, Richter, Matthias H., Akay, Ömer, Giersig, Michael, Fountaine, Katherine T. and Lewerenz, Hans-Joachim (2018) Advancing semiconductor–electrocatalyst systems : application of surface transformation films and nanosphere lithography. Faraday Discussions, 208 . pp. 523-535. doi:10.1039/C8FD00003D

Research output not available from this repository, contact author.
Official URL: http://dx.doi.org/10.1039/C8FD00003D

Request Changes to record.

Abstract

Photoelectrochemical (PEC) cells offer the possibility of carbon-neutral solar fuel production through artificial photosynthesis. The pursued design involves technologically advanced III–V semiconductor absorbers coupled via an interfacial film to an electrocatalyst layer. These systems have been prepared by in situ surface transformations in electrochemical environments. High activity nanostructured electrocatalysts are required for an efficiently operating cell, optimized in their optical and electrical properties. We demonstrate that shadow nanosphere lithography (SNL) is an auspicious tool to systematically create three-dimensional electrocatalyst nanostructures on the semiconductor photoelectrode through controlling their morphology and optical properties. First results are demonstrated by means of the photoelectrochemical production of hydrogen on p-type InP photocathodes where hitherto applied photoelectrodeposition and SNL-deposited Rh electrocatalysts are compared based on their J–V and spectroscopic behavior. We show that smaller polystyrene particle masks achieve higher defect nanostructures of rhodium on the photoelectrode which leads to a higher catalytic activity and larger short circuit currents. Structural analyses including HRSEM and the analysis of the photoelectrode surface composition by using photoelectron spectroscopy support and complement the photoelectrochemical observations. The optical performance is further compared to theoretical models of the nanostructured photoelectrodes on light scattering and propagation.

Item Type: Journal Article
Divisions: Faculty of Science > Chemistry
Journal or Publication Title: Faraday Discussions
Publisher: Royal Society of Chemistry
ISSN: 0301-7249
Official Date: 2018
Dates:
DateEvent
2018Published
5 March 2018Available
5 March 2018Accepted
Volume: 208
Page Range: pp. 523-535
DOI: 10.1039/C8FD00003D
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access

Request changes or add full text files to a record

Repository staff actions (login required)

View Item View Item
twitter

Email us: wrap@warwick.ac.uk
Contact Details
About Us