Strong size-dependent characteristics of carrier injection in quantum-confined silicon nanocrystals

Chang Hee Cho, Sang Kyun Kim, Baek Hyun Kim, Seong Ju Park

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We report the strong size-dependent carrier injection process in quantum-confined silicon nanocrystals embedded in silicon nitride films. As the diameter of silicon nanocrystals increases, the threshold voltage for carrier injection decreases whereas the number of injected carriers increases due to the quantum size effect. The tunneling time for the carrier injection is decreased by two orders of magnitude when the diameter of silicon nanocrystals is increased from 3.4 to 5.0 nm, and this is attributed to the enhanced nonresonant tunneling in the larger silicon nanocrystals.

Original languageEnglish
Article number243108
JournalApplied Physics Letters
Volume95
Issue number24
DOIs
Publication statusPublished - 2009 Dec 14
Externally publishedYes

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carrier injection
nanocrystals
silicon
silicon nitrides
threshold voltage

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Strong size-dependent characteristics of carrier injection in quantum-confined silicon nanocrystals. / Cho, Chang Hee; Kim, Sang Kyun; Kim, Baek Hyun; Park, Seong Ju.

In: Applied Physics Letters, Vol. 95, No. 24, 243108, 14.12.2009.

Research output: Contribution to journalArticle

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