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- W2163398117 abstract "Recently great progress has been achieved in highly effective hybrid solar cells fabricated using aqueous materials. The state‐of‐the‐art energy conversion efficiency has been close to 5% with high photocurrent. However, charge separation and transport mechanism in the aqueous‐processed hybrid solar cells are rarely reported and are usually assumed to be similar to oil‐phase processed systems; that is, self‐assembly polymers are mainly responsible for charge separation and carrier transport. To date, this assumption has prohibited further improvement of the conversion efficiency in aqueous‐processed hybrid systems by adopting any appropriate technique routes. Here, ultrafast carrier dynamics in these hybrid solar cells consisting of poly( p ‐phenylenevinylene) (PPV)‐based aqueous polymers and water‐solution CdTe nanocrystals (NCs) are investigated in detail. Self‐charge separation in grown CdTe NC partly capped CdS shell layers after anneal treatment is unambiguously identified. Different from their oil‐soluble counterparts, these core/shell nanocrystals do not have the restrictions of quantum confinement and surface ligands, form effective charge transport networks, and play a dominant role in the charge separation and carrier transport processes. These findings provide a greater understanding on the fundamental photophysics in aqueous‐processed hybrid systems." @default.
- W2163398117 created "2016-06-24" @default.
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- W2163398117 date "2014-03-14" @default.
- W2163398117 modified "2023-10-17" @default.
- W2163398117 title "Unraveling Charge Separation and Transport Mechanisms in Aqueous-Processed Polymer/CdTe Nanocrystal Hybrid Solar Cells" @default.
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- W2163398117 doi "https://doi.org/10.1002/aenm.201301882" @default.
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