Electron tunneling characteristics of a cubic quantum dot, (PbS)
Journal of Chemical Physics, ISSN: 0021-9606, Vol: 139, Issue: 24, Page: 244307
2013
- 13Citations
- 165Usage
- 16Captures
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Metrics Details
- Citations13
- Citation Indexes13
- CrossRef13
- 13
- Usage165
- Downloads161
- Abstract Views4
- Captures16
- Readers16
- 16
Article Description
The electron transport properties of the cubic quantum dot, (PbS) , are investigated. The stability of the quantum dot has been established by recent scanning tunneling microscope experiments [B. Kiran, A. K. Kandalam, R. Rallabandi, P. Koirala, X. Li, X. Tang, Y. Wang, H. Fairbrother, G. Gantefoer, and K. Bowen, J. Chem. Phys. 136(2), 024317 (2012)]. In spite of the noticeable energy band gap (∼2 eV), a relatively high tunneling current for (PbS) is predicted affirming the observed bright images for (PbS). The calculated I-V characteristics of (PbS) are predicted to be substrate-dependent; (PbS) on the Au (001) exhibits the molecular diode-like behavior and the unusual negative differential resistance effect, though this is not the case with (PbS) on the Au (110). Appearance of the conduction channels associated with the hybridized states of quantum dot and substrate together with their asymmetric distribution at the Fermi level seem to determine the tunneling characteristics of the system. © 2013 AIP Publishing LLC.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84903362453&origin=inward; http://dx.doi.org/10.1063/1.4849136; http://www.ncbi.nlm.nih.gov/pubmed/24387370; https://pubs.aip.org/jcp/article/139/24/244307/566865/Electron-tunneling-characteristics-of-a-cubic; https://digitalcommons.wcupa.edu/phys_facpub/14; https://digitalcommons.wcupa.edu/cgi/viewcontent.cgi?article=1013&context=phys_facpub
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