Influence of Different Cations of N3 Dyes on Their Photovoltaic Performance and Stability | Zendy

Luísa Andrade | Zendy; Shaik M. Zakeeruddin | Zendy; Mohammad Khaja Nazeeruddin | Zendy; Helena Aguilar Ribeiro | Zendy; Adélio Mendes | Zendy; Michael Gräetzel | Zendy

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Influence of Different Cations of N3 Dyes on Their Photovoltaic Performance and Stability

Author(s) -

Luísa Andrade,

Shaik M. Zakeeruddin,

Mohammad Khaja Nazeeruddin,

Helena Aguilar Ribeiro,

Adélio Mendes,

Michael Gräetzel

Publication year - 2009

Publication title -

international journal of chemical engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.309

H-Index - 25

eISSN - 1687-8078

pISSN - 1687-806X

DOI - 10.1155/2009/563420

Subject(s) - materials science , chemistry

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 W⋅m-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

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