Influence of different cations of N3 dyes on their photovoltaic performance and stability

• Type: Article in International Scientific Journal
• Date: 2009

Authors

Adélio Mendes (Author) FEUP; Helena Aguilar Ribeiro (Author) FEUP; Luísa Andrade (Author) FEUP; Michael Graetzel (Author) Other; Mohammad K. Nazeeruddin (Author) Other; Shaik M. Zakeeruddin (Author) Other

Journal

Title: International Journal of Chemical Engineering

Vol. 2009

Pages: 1-7

ISSN: 1687-806X

Publisher: Hindawi

Indexing

Scopus - 2 Citations

Scientific classification

FOS: Engineering and technology > Other engineering and technologies

CORDIS: Technological sciences > Engineering > Chemical engineering

Other information

Authenticus ID: P-007-Q3V

DOI: 10.1155/2009/563420

Abstract (EN): The N3 dye was modified by substituting two of its protons by potassium or sodium cations. The performance and stability of dye-sensitized solar cells incorporating the new dyes were evaluated under light soaking (1000 02009; W 022C5; m 45; 2) at 50 °C. Photocurrent measurements demonstrated that proton substitution by potassium cations rends the system more stable. Further characterization of the potassium-based devices was performed by electrochemical impedance spectroscopy to investigate the charge-transfer phenomena occurring at the different interfaces of the cells.

Language: English

Type (Professor's evaluation): Scientific