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Charge transport in arrays of PbSe nanocrystals

Autor: Mentzel, T. S., Porter, V. J., Geyer, S., MacLean, K., Bawendi, M. G., Kastner, M. A.

We report electrical transport measurements of arrays of PbSe nanocrystals forming the channels of field effect transistors. We measure the current in these devices as a function of source-drain voltage, gate voltage and temperature. Annealing is nec

Externí odkaz: http://arxiv.org/abs/0708.1135

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Levy statistics and anomalous transport in quantum-dot arrays

Autor: Novikov, D. S., Drndic, M., Levitov, L. S., Kastner, M. A., Jarosz, M. V., Bawendi, M. G.

Publikováno v: Phys. Rev. B 72, 075309 (2005)

A novel model of transport is proposed to explain power law current transients and memory phenomena observed in partially ordered arrays of semiconducting nanocrystals. The model describes electron transport by a stationary Levy process of transmissi

Externí odkaz: http://arxiv.org/abs/cond-mat/0307031

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Imaging the charge transport in arrays of CdSe nanocrystals

Autor: Drndic, M., Markov, R., Jarosz, M. V., Bawendi, M. G., Kastner, M. A., Markovic, N., Tinkham, M.

A novel method to image charge is used to measure the diffusion coefficient of electrons in films of CdSe nanocrystals at room temperature. This method makes possible the study of charge transport in films exhibiting high resistances or very small di

Externí odkaz: http://arxiv.org/abs/cond-mat/0305684

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Transport properties of annealed CdSe nanocrystal solids

Autor: Drndic, M., Vitasovic, M., Morgan, N. Y., Kastner, M. A., Bawendi, M. G.

Transport properties of artificial solids composed of colloidal CdSe nanocrystals (NCs) are studied from 6 K to 250 K, before and after annealing. Annealing results in greatly enhanced dark and photocurrent in NC solids, while transmission electron m

Externí odkaz: http://arxiv.org/abs/cond-mat/0204614

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