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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2009

Autores

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

Revista

Título: International Journal of Chemical Engineering

Vol. 2009

Páginas: 1-7

ISSN: 1687-806X

Editora: Hindawi

Indexação

Scopus - 2 Citações

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Outras ciências da engenharia e tecnologias

CORDIS: Ciências Tecnológicas > Engenharia > Engenharia química

Outras Informações

ID Authenticus: 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica