Sulfur‐Doped Nickel Oxide Thin Film as an Alternative to Pt for Dye‐Sensitized Solar Cell Counter Electrodes

A low-cost, sulfur-doped NiO (S–NiO) thin film is electrodeposited on fluorine-doped SnO2 substrate and studied in an iodide-based redox system. High electrochemical activity is present because of a large catalytic surface area and a low charge transfer resistance. A dye- sensitized solar cell with a low-loaded S–NiO counter electrode achieves a power conversion efficiency of 5.04%, close to that of a cell with a conventional platinized electrode. Detailed facts of importance to specialist readers are published as ”Supporting Information”. Such documents are peer-reviewed, but not copy-edited or typeset. They are made available as submitted by the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.