6533b826fe1ef96bd1284654
RESEARCH PRODUCT
Phenothiazine dye featuring encapsulated insulated molecular wire as auxiliary donor for high photovoltage of dye-sensitized solar cells by suppression of aggregation
Zu-sheng HuangDerong CaoKe CaiHerbert MeierHerbert MeierLingyun WangTao HuaHao Tangsubject
Materials scienceGeneral Chemical EngineeringEnergy conversion efficiency02 engineering and technology010402 general chemistry021001 nanoscience & nanotechnologyPhotochemistry01 natural sciences0104 chemical sciencesDye-sensitized solar cellchemistry.chemical_compoundMolecular wirechemistryChenodeoxycholic acidPhenothiazineElectrochemistry0210 nano-technologyCell baseddescription
Abstract Two efficient dye-sensitized solar cells have been fabricated by two novel D–D–π–A phenothiazine-based organic dyes (PH2 and PH3) with an encapsulated insulated molecular wire (EIMW) as an auxiliary donor. The cell sensitized by PH2 with EIMW as an auxiliary donor shows a much higher photovoltage (Voc) relative to the reference dye PH1 without EIMW, because the former dye can inhibit dye aggregation and suppress the charge recombination effectively. The results show that the cell sensitized by PH2 with co-adsorption of chenodeoxycholic acid obtains a high power conversion efficiency, even higher than that of the cell based on N719. Thus, an effective way to increase the photovoltage and efficiency of the DSSCs has been developed by introducing the EIMW into the organic dyes due to the effective inhibition of dye aggregation and charge recombination.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-04-01 | Electrochimica Acta |