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28 February 2006 Colloidal quantum dots as optoelectronic elements
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Abstract
A variety of colloidal semiconductor quantum dots and related quantum-wire structures are characterized using absorption and photoluminescence measurements. The electronic properties of these structures are modeled and compared with experiment. The characterization and application of ensembles of colloidal quantum dots with molecular interconnects are considered. The chemically-directed assembly of ensembles of colloidal quantum dots with biomolecular interconnects is demonstrated with quantum dot densities in excess of 10+17 cm-3. Non-charge transfer processes for switching based on dipole-dipole interactions - Forester interactions - are examined for colloidal quantum dots linked with biomolecules. Charge transport in biomolecules is studied using indirect-bandgap colloidal nanocrystals linked with biomolecules.
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Dinakar Ramadurai, Yang Li, Takayuki Yamanaka, Dwarakanath Geerpuram, Viswanath Sankar, Milana Vasudev, Dimitri Alexson, Peng Shi, Mitra Dutta, Michael A. Stroscio, Tijana Rajh, Zoran Saponjic, Nicholas Kotov, Zhiyong Tang, and Song Xu "Colloidal quantum dots as optoelectronic elements", Proc. SPIE 6127, Quantum Sensing and Nanophotonic Devices III, 61270L (28 February 2006); https://doi.org/10.1117/12.641067
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