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Charge transport in two different conductive polymer and semiconducting quantum dot nanocomposite systems

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Title: Charge transport in two different conductive polymer and semiconducting quantum dot nanocomposite systems
Author(s): Biswas, Sushmita; Li, Yang; Stroscio, Michael A.; Dutta, Mitra
Abstract: Charge transport mechanisms have been investigated in two different nanocomposite structures made of conductive polymers embedded with II-VI semiconducting quantum dots. Photoluminescence data indicated charge transport in the two systems. Higher photocurrents observed in the poly (3-hexylthiophene-2,5-diyl) polymer-based heterostructure in comparison with the poly(2-methoxy-5 -(20-ethyl-hexyloxy)-1,4-phenylenevinylene) polymer-based heterostructure have been analyzed with hole and electron conduction. For larger concentrations of quantum dots, both electron transport through nanocrystals and hole transport through polymer become relevant. Based on the electron tunneling mechanism, current voltage characteristics are modeled for a double barrier quantum well device formed by semiconducting quantum dots and polymer molecules.
Issue Date: 2012-02
Publisher: American Institute of Physics
Citation Info: Biswas, S., Li, Y., Stroscio, M. A., & Dutta, M. 2012. Charge transport in two different conductive polymer and semiconducting quantum dot nanocomposite systems. Journal of Applied Physics, 111(4). DOI: 10.1063/1.3682106
Type: Article
Description: Copyright (2012) American Institute of Physics. The following article appeared in Journal of Applied Physics(Biswas, S., Li, Y., Stroscio, M. A., & Dutta, M. 2012. Charge transport in two different conductive polymer and semiconducting quantum dot nanocomposite systems. Journal of Applied Physics, 111(4).) and may be found at http://jap.aip.org/resource/1/japiau/v111/i4/p044313_s1. DOI: 10.1063/1.3682106
URI: http://hdl.handle.net/10027/8445
ISSN: 0021-8979
Date Available in INDIGO: 2012-08-14
 

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