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• W2887302443 endingPage "10120" @default.
• W2887302443 startingPage "10117" @default.
• W2887302443 abstract "The overall efficiency of multielectron photocatalytic reactions is often much lower than the charge-separation yield reported for the first charge-transfer (CT) event. Our recent study has partially linked this gap to CT from charge-accumulated light harvesters. Another possible intermediate event lowering the efficiency is CT into charge-accumulated nanocatalysts. To study this event, we built a “toy” system using nanocrystal quantum dots (QDs) doped with extra electrons to mimick charge-accumulated nanocatalysts. We measured electron transfer (ET) from photoexcited molecular light harvesters into doped QDs using transient absorption spectroscopy. The measurements reveal that the pre-existing electron slows down ET from 37.8 ± 2.2 ps in the neutral sample to 93.4 ± 8.6 ps in the singly doped sample, accelerates charge recombination (CR) from 7.02 ± 0.84 to 3.69 ± 0.25 ns, and lowers the electron-injection yield by ∼14%. This study uncovers yet another possible intermediate event lowering the efficiency of multielectron photocatalysis." @default.
• W2887302443 created "2018-08-22" @default.
• W2887302443 creator A5022960964 @default.
• W2887302443 creator A5030581701 @default.
• W2887302443 creator A5033737778 @default.
• W2887302443 date "2018-07-31" @default.
• W2887302443 modified "2023-10-02" @default.
• W2887302443 title "Electron Transfer into Electron-Accumulated Nanocrystals: Mimicking Intermediate Events in Multielectron Photocatalysis II" @default.
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• W2887302443 doi "https://doi.org/10.1021/jacs.8b05942" @default.
• W2887302443 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30064222" @default.
• W2887302443 hasPublicationYear "2018" @default.
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