Abstract
In this communication, we demonstrate a new approach to sensitization of Ru-polypyridine complexes by using semiconductor nanocrystal quantum dots (NQDs). When mixed in solution, the complexes functionalized by carboxylic groups adsorb onto the surface of the NQDs. Excitation of NQDs by 400 nm light leads to fast, 5 ps hole transfer from the photoexcited NQDs to the surface-adsorbed complexes. This result indicates that Ru complexes can be sensitized by CdSe NQDs, which opens interesting opportunities for designing new types of photocatalytic materials for solar energy conversion applications. These materials will take advantage of broad size-controlled absorption spectra and large extinction coefficients of NQDs as well as the unique property of NQDs to respond to absorption of a single photon by producing multiple electron-hole pairs.
| Original language | English |
|---|---|
| Pages (from-to) | 9984-9985 |
| Number of pages | 2 |
| Journal | Journal of the American Chemical Society |
| Volume | 128 |
| Issue number | 31 |
| DOIs | |
| Publication status | Published - Aug 9 2006 |
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ASJC Scopus subject areas
- Chemistry(all)
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Photoinduced charge transfer between CdSe nanocrystal quantum dots and Ru-polypyridine complexes. / Sykora, Milan; Petruska, Melissa A.; Alstrum-Acevedo, James; Bezel, Ilya; Meyer, Thomas J.; Klimov, Victor I.
In: Journal of the American Chemical Society, Vol. 128, No. 31, 09.08.2006, p. 9984-9985.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Photoinduced charge transfer between CdSe nanocrystal quantum dots and Ru-polypyridine complexes
AU - Sykora, Milan
AU - Petruska, Melissa A.
AU - Alstrum-Acevedo, James
AU - Bezel, Ilya
AU - Meyer, Thomas J.
AU - Klimov, Victor I
PY - 2006/8/9
Y1 - 2006/8/9
N2 - In this communication, we demonstrate a new approach to sensitization of Ru-polypyridine complexes by using semiconductor nanocrystal quantum dots (NQDs). When mixed in solution, the complexes functionalized by carboxylic groups adsorb onto the surface of the NQDs. Excitation of NQDs by 400 nm light leads to fast, 5 ps hole transfer from the photoexcited NQDs to the surface-adsorbed complexes. This result indicates that Ru complexes can be sensitized by CdSe NQDs, which opens interesting opportunities for designing new types of photocatalytic materials for solar energy conversion applications. These materials will take advantage of broad size-controlled absorption spectra and large extinction coefficients of NQDs as well as the unique property of NQDs to respond to absorption of a single photon by producing multiple electron-hole pairs.
AB - In this communication, we demonstrate a new approach to sensitization of Ru-polypyridine complexes by using semiconductor nanocrystal quantum dots (NQDs). When mixed in solution, the complexes functionalized by carboxylic groups adsorb onto the surface of the NQDs. Excitation of NQDs by 400 nm light leads to fast, 5 ps hole transfer from the photoexcited NQDs to the surface-adsorbed complexes. This result indicates that Ru complexes can be sensitized by CdSe NQDs, which opens interesting opportunities for designing new types of photocatalytic materials for solar energy conversion applications. These materials will take advantage of broad size-controlled absorption spectra and large extinction coefficients of NQDs as well as the unique property of NQDs to respond to absorption of a single photon by producing multiple electron-hole pairs.
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U2 - 10.1021/ja061556a
DO - 10.1021/ja061556a
M3 - Article
VL - 128
SP - 9984
EP - 9985
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
SN - 0002-7863
IS - 31
ER -