We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Single-Electron Transport in Colloidal Quantum Dots of Narrow-Gap Semiconductors.
- Authors
Zhukov, N. D.; Gavrikov, M. V.; Kryl'skii, D. V.
- Abstract
Single-electron transport in a planar structure of InSb, PbS, and CdSe semiconductor colloidal quantum dots has been studied by scanning tunneling microscopy. Current dips similar to the Coulomb gap have been observed in the I–V characteristics. The qualitative and numerical comparative estimates suggest that a structure consisting of a set of quantum dots exhibits single-electron transport and a phenomenon similar to the Coulomb blockade. The white light illumination of the sample during the measurements of the I–V characteristics breaks the Coulomb blockade and one can expect that a device element based on such a structure will respond to individual photons. In the Coulomb gap region, current oscillations at terahertz frequencies can occur.
- Subjects
SEMICONDUCTOR nanocrystals; NARROW gap semiconductors; SEMICONDUCTOR quantum dots; CURRENT fluctuations; COULOMB blockade; SCANNING tunneling microscopy; QUANTUM dots; ELECTRON transport
- Publication
Technical Physics Letters, 2020, Vol 46, Issue 9, p881
- ISSN
1063-7850
- Publication type
Article
- DOI
10.1134/S106378502009014X