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- W4386257890 abstract "Surface engineering of colloidal quantum dots (QDs) plays an important role in determining their optoelectronic properties and stability. Here, we demonstrate a pseudohalide ion-based surface pretreatment strategy to peel off the insulating long-chain oleate organic ligands and those unwanted oxides on the surface of the near-infrared CdSeTe QDs, which enables a significant reduction in QDs’ surface trap states, as well as an improvement in their colloidal stability. The ensuing CdSeTe QD-sensitized solar cells exhibit a remarkable enhancement of near ∼20% in photoelectrical conversion efficiency (PCE), which reaches up to 12.05% after optimizing its counter electrode, representing the highest PCE of CdSeTe QD-based photovoltaics reported so far. Our work provides important guidance from the surface chemistry of colloidal QDs for constructing high-performance optoelectronic devices." @default.
- W4386257890 created "2023-08-30" @default.
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- W4386257890 date "2023-10-01" @default.
- W4386257890 modified "2023-09-30" @default.
- W4386257890 title "Facile surface pseudohalide pretreatment of quantum dots for efficient photovoltaics" @default.
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- W4386257890 doi "https://doi.org/10.1016/j.cej.2023.145657" @default.
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