Charge transport in mixed CdSe and CdTe colloidal nanocrystal films
Name
Geyer-2010-Charge transport in.pdf
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Author(s)
Bawendi, Moungi G.
Geyer, Scott Mitchell
Porter, Venda J.
Halpert, Jonathan E.
Mentzel, Tamar
Kastner, Marc
Date Issued
October 2010
Journal
Physical Review B
Publisher
American Physical Society
Citation
Geyer, Scott et al. “Charge transport in mixed CdSe and CdTe colloidal nanocrystal films.” Physical Review B 82.15 (2010): 155201. © 2010 The American Physical Society.
Version
Final published version
Abstract
We report the influence of trap states on charge transport through films of mixed CdTe and CdSe nanocrystals (NCs) between lateral electrodes, through layered films of CdTe and CdSe NCs in a layered geometry, and through films of CdTe/CdSe nanobarbells in a layered geometry. We find that an electron trapping state on the surface of the CdTe NCs dominates the conduction in all devices studied. X-ray photoelectron spectroscopy and thermal activation studies implicate unpassivated or oxidized Te as the electron-trapping site.
MIT Department
Massachusetts Institute of Technology. Department of Chemistry
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1103/PhysRevB.82.155201
