Large nonlinear absorption in coated Ag2S/CdS nanoparticles by inverse microemulsion

M. Y. Han; W. Huang; C. H. Chew; L. M. Gan; X. J. Zhang; W. Ji

doi:10.1021/jp972877z

Large nonlinear absorption in coated Ag₂S/CdS nanoparticles by inverse microemulsion

M. Y. Han, W. Huang, C. H. Chew, L. M. Gan, X. J. Zhang, W. Ji

National University of Singapore

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

161 Scopus citations

Abstract

A modified inverse microemulsion technique was used to synthesize coated Ag₂S/CdS nanocomposites of ∼10 nm in diameter. Their nonlinear absorption was observed with picosecond and nanosecond laser radiation of 532-nm wavelength. The nonlinear absorption in the Ag₂S/CdS nanocomposites was enhanced, in comparison with the CdS nanoparticles, due to free-carrier absorption. In addition, the relaxation times of photoexcited free carriers in the Ag₂S/CdS nanocomposites were also determined to be a few nanoseconds.

Original language	English
Pages (from-to)	1884-1887
Number of pages	4
Journal	Journal of Physical Chemistry B
Volume	102
Issue number	11
DOIs	https://doi.org/10.1021/jp972877z
State	Published - 12 Mar 1998
Externally published	Yes

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title = "Large nonlinear absorption in coated Ag2S/CdS nanoparticles by inverse microemulsion",

abstract = "A modified inverse microemulsion technique was used to synthesize coated Ag2S/CdS nanocomposites of ∼10 nm in diameter. Their nonlinear absorption was observed with picosecond and nanosecond laser radiation of 532-nm wavelength. The nonlinear absorption in the Ag2S/CdS nanocomposites was enhanced, in comparison with the CdS nanoparticles, due to free-carrier absorption. In addition, the relaxation times of photoexcited free carriers in the Ag2S/CdS nanocomposites were also determined to be a few nanoseconds.",

author = "Han, {M. Y.} and W. Huang and Chew, {C. H.} and Gan, {L. M.} and Zhang, {X. J.} and W. Ji",

year = "1998",

month = mar,

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doi = "10.1021/jp972877z",

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AU - Han, M. Y.

AU - Huang, W.

AU - Chew, C. H.

AU - Gan, L. M.

AU - Zhang, X. J.

AU - Ji, W.

PY - 1998/3/12

Y1 - 1998/3/12

N2 - A modified inverse microemulsion technique was used to synthesize coated Ag2S/CdS nanocomposites of ∼10 nm in diameter. Their nonlinear absorption was observed with picosecond and nanosecond laser radiation of 532-nm wavelength. The nonlinear absorption in the Ag2S/CdS nanocomposites was enhanced, in comparison with the CdS nanoparticles, due to free-carrier absorption. In addition, the relaxation times of photoexcited free carriers in the Ag2S/CdS nanocomposites were also determined to be a few nanoseconds.

AB - A modified inverse microemulsion technique was used to synthesize coated Ag2S/CdS nanocomposites of ∼10 nm in diameter. Their nonlinear absorption was observed with picosecond and nanosecond laser radiation of 532-nm wavelength. The nonlinear absorption in the Ag2S/CdS nanocomposites was enhanced, in comparison with the CdS nanoparticles, due to free-carrier absorption. In addition, the relaxation times of photoexcited free carriers in the Ag2S/CdS nanocomposites were also determined to be a few nanoseconds.

UR - http://www.scopus.com/inward/record.url?scp=0001434661&partnerID=8YFLogxK

U2 - 10.1021/jp972877z

DO - 10.1021/jp972877z

M3 - 文章

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SP - 1884

EP - 1887

JO - Journal of Physical Chemistry B

JF - Journal of Physical Chemistry B

IS - 11

ER -

Large nonlinear absorption in coated Ag₂S/CdS nanoparticles by inverse microemulsion

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