Photocurrent induced by nonradiative energy transfer from nanocrystal quantum dots to adjacent silicon nanowire conducting channels: toward a new solar cell paradigm.
basic_science · Level V
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- Record sourced from PubMed, PMID 19856942.
- Also identified by DOI 10.1021/nl903104k.
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Abstract
We report the observation of photocurrent in silicon nanowires induced by nonradiative resonant energy transfer (NRET) from adjacent layers of lead sulfide nanocrystal quantum dots using time-resolved photocurrent measurements. This demonstration supports the feasibility of a new solar cell paradigm (Lu, S.; Madhukar, A. Nano Lett. 2007, 7, 3443-3451) that exploits NRET between efficient photon absorbers and adjacent nanowire/quantum well high-mobility charge transport channels and could offer a viable alternative to the limitations of carrier transport and collection faced by excitonic solar cells.
Medical subject headings
- Crystallization
- Electrochemistry
- Nanostructures
- Nanotechnology
- Photochemistry
- Quantum Dots
- Silicon