Sulfur-doped nickel oxide thin film as an alternative to Pt for dye-sensitized solar cell counter electrodes

• Main Authors: Li, Chang Ming, Guai, Guan Hong, Leiw, Ming Yian, Ng, Chee Mang
• Other Authors: School of Chemical and Biomedical Engineering
• Format: Article
• Language: English
• Published: 2013
• Online Access: https://hdl.handle.net/10356/96712; http://hdl.handle.net/10220/10389
• Institution: Nanyang Technological University

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.