Enhanced carrier-carrier interaction in optically pumped hydrogenated nanocrystalline silicon

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

doi:10.1063/1.4755760

Enhanced carrier-carrier interaction in optically pumped hydrogenated nanocrystalline silicon

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

Aston University

Research output: Contribution to journal › Article › peer-review

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 language	English
Article number	141904
Number of pages	4
Journal	Applied Physics Letters
Volume	101
Issue number	14
Early online date	2 Oct 2012
DOIs	https://doi.org/10.1063/1.4755760
Publication status	Published - 12 Oct 2012

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title = "Enhanced carrier-carrier interaction in optically pumped hydrogenated nanocrystalline silicon",

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.",

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AU - Kaplan, Andrey

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N2 - 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.

AB - 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.

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Enhanced carrier-carrier interaction in optically pumped hydrogenated nanocrystalline silicon

Abstract

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