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Efficient Inorganic‐Organic Heterojunction Solar Cells Employing Sb<sub>2</sub>(S<sub><i>x</i></sub>/Se<sub>1‐<i>x</i></sub>)<sub>3</sub> Graded‐Composition Sensitizers
136
Citations
37
References
2014
Year
Optical MaterialsEngineeringOrganic Solar CellPhoto-electrochemical CellPhotovoltaic DevicesOptoelectronic DevicesChemistrySequential DepositionPhotoelectrochemistryPhotovoltaicsMesoporous Tio2 PhotoelectrodeSolar Cell StructuresMaterials ScienceElectrical EngineeringSolar PowerEnergy MaterialCompositional Graded-solar CellsSolar CellsOptoelectronicsSolar Cell Materials
A Sb2(S1-x/Sex)3 graded-composition is obtained by a sequential deposition of Sb2S3 and Sb2Se3 onto a mesoporous TiO2 photoelectrode followed by thermal annealing at 300 °C. The compositional graded-solar cells exhibit a greatly enhanced performance compared to pristine Sb2S3-sensitized or Sb2Se3-sensitized solar cells. The best performing cell, delivering an incident-photon-to-current efficiency extended to 1050 nm, exhibits an overall power conversion efficiency of 6.6% under simulated illumination.
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