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- W2471014832 endingPage "22680" @default.
- W2471014832 startingPage "22669" @default.
- W2471014832 abstract "Colloidal CuInS2 nanocrystals are a promising alternative to toxic cadmium or lead chalcogenide nanocrystals that are widely studied as absorbing material in hybrid solar cells. Photovoltaic devices with colloidal CuInS2 nanoparticles suffer, however, still from low performance. The present study focuses on a detailed investigation of charge transfer as an elemental process involved in the energy conversion process. Therefore, the excited state properties and the process of charge transfer in CuInS2 (CIS) nanocrystal/polymer composites were studied by applying quasi-steady-state photoinduced absorption (PIA) and steady-state photoluminescence (PL) as well as time-resolved photoluminescence (PL) spectroscopy. The excited state dynamics of our systems was studied using time-correlated single photon counting. We examined two different composites, namely, CuInS2 nanocrystals combined with either poly(3-hexylthiophene) (P3HT) or poly[2,6-(4,4-bis-(2-ethylhexyl)-4H-cyclopenta[2,1-b;3,4-b′]dithiophene)-alt-4,7-(2,1,3-benzothiadiazole)] (PCPDTBT). Optical absorption and emission spectra of these hybrid material systems exhibit luminescence quenching and polaronic photoinduced absorption indicating photoinduced charge transfer. By systematic variations of the composition of the films, the material ratios favoring efficient charge transfer were determined." @default.
- W2471014832 created "2016-07-22" @default.
- W2471014832 creator A5006618194 @default.
- W2471014832 creator A5045839061 @default.
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- W2471014832 creator A5065975451 @default.
- W2471014832 creator A5072242255 @default.
- W2471014832 creator A5083241775 @default.
- W2471014832 date "2015-09-17" @default.
- W2471014832 modified "2023-09-27" @default.
- W2471014832 title "Photoinduced Charge Transfer in Hybrid Systems of CuInS<sub>2</sub> Nanocrystals and Conductive Polymer" @default.
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- W2471014832 doi "https://doi.org/10.1021/acs.jpcc.5b06618" @default.
- W2471014832 hasPublicationYear "2015" @default.
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