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Two novel organic dyes containing julolidine as the electron donor and cyanoacetic acid or rhodanine-3-acetic acid as the electron acceptor bridged by bithiophene unit were synthesized. The absorption spectra, electrochemical and photovoltaic properties of the new dyes were extensively investigated. Transient absorption spectra measurements show that both sensitizers are quickly regenerated and the...
Four novel donor-π conjugated bridge-acceptor (D-π-A) metal-free organic dyes (J1, J2, J3 and J4) with a julolidine moiety as the electron donor for dye-sensitized solar cells (DSSCs) are synthesized. Their absorption spectra, electrochemical and photovoltaic properties were extensively investigated. Transient absorption spectra measurements show that insertion of one thiophene unit and replacing...
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