Charge transfer efficiency in hybrid bulk heterojunction composites |
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Authors: | Kucur Erol Riegler Jurgen Urban Gerald Nann Thomas |
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Institution: | Freiburg Materials Research Center, Stefan-Meier-Strasse 21, D-79104, Germany. |
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Abstract: | On the basis of recently published electrochemical measurements, the charge transfer efficiency within CdSe nanocrystal/conducting polymer heterojunction composites was investigated by means of luminescence interaction strength. It was found that poly2-methoxy-5-(2'-ethylhexyloxy)-1,4-phenylenevinylene] and poly-9-vinylcarbazole luminescence was not totally quenched by nanocrystals, whereas poly-3-octylthiophene and polyvinylpyrrolidone was completely quenched. In case of poly-3-hexylthiophene, the nanocrystal luminescence was quenched. The results are in complete agreement with the electrochemical findings and thus, the CdSe nanocrystal/Polyvinylpyrrolidone composite should be a promising material for electroluminescent devices. |
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