Enhanced carrier-carrier interaction in optically pumped hydrogenated nanocrystalline silicon

Thomas W. Roger, Wei He, Igor Yurkevich, Andrey Kaplan

Research output: Contribution to journalArticle

Abstract

A femtosecond pump-probe setup was used to measure the time resolved reflectivity of hydrogenated amorphous silicon containing crystalline silicon nanoparticles at eight different incidence angles. Results fitted with the Drude model found a scattering rate of G = 2-1+1.2×1015?s-1 at a corresponding carrier concentration of ~ 1020?cm-3. The observed scattering rate is attributed to enhanced carrier-carrier interaction in optically pumped nanocrystals.

Original languageEnglish
Article number141904
Number of pages4
JournalApplied Physics Letters
Volume101
Issue number14
Early online date2 Oct 2012
DOIs
Publication statusPublished - 12 Oct 2012

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