DFWM study of thin films containing surface-modified CdS nanoparticles

T. Yamaki; K. Asai; K. Ishigure; K. Sano; K. Ema

doi:10.1016/S0379-6779(98)00687-0

DFWM study of thin films containing surface-modified CdS nanoparticles

T. Yamaki, K. Asai, K. Ishigure, K. Sano, K. Ema

Research output: Contribution to journal › Conference article › peer-review

5 Citations (Scopus)

Abstract

Degenerate four-wave mixing (DFWM) was used as a technique to estimate the third-order optical susceptibility, χ⁽³⁾ (-ω; ω, -ω, ω), of thin films prepared from cadmium sulfide (CdS) colloidal solutions. The formation of CdS films on a substrate, without any change in the particle size, enhanced the quantum yield of an excitonic band by removing a large number of surface traps. This film showed a large χ⁽³⁾ value near approx. 10^-7 esu around the exciton resonance at room temperature. This was possibly brought about by an effective surface passivation as well as a high CdS microcrystallite concentration.

Original language	English
Pages (from-to)	2690-2691
Number of pages	2
Journal	Synthetic Metals
Volume	103
Issue number	1-3
DOIs	https://doi.org/10.1016/S0379-6779(98)00687-0
Publication status	Published - 1999 Jun 24
Externally published	Yes
Event	Proceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98) - Montpellier Duration: 1998 Jul 12 → 1998 Jul 18

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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title = "DFWM study of thin films containing surface-modified CdS nanoparticles",

abstract = "Degenerate four-wave mixing (DFWM) was used as a technique to estimate the third-order optical susceptibility, χ(3) (-ω; ω, -ω, ω), of thin films prepared from cadmium sulfide (CdS) colloidal solutions. The formation of CdS films on a substrate, without any change in the particle size, enhanced the quantum yield of an excitonic band by removing a large number of surface traps. This film showed a large χ(3) value near approx. 10-7 esu around the exciton resonance at room temperature. This was possibly brought about by an effective surface passivation as well as a high CdS microcrystallite concentration.",

author = "T. Yamaki and K. Asai and K. Ishigure and K. Sano and K. Ema",

year = "1999",

month = jun,

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doi = "10.1016/S0379-6779(98)00687-0",

language = "English",

volume = "103",

pages = "2690--2691",

journal = "Synthetic Metals",

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number = "1-3",

note = "Proceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98) ; Conference date: 12-07-1998 Through 18-07-1998",

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TY - JOUR

T1 - DFWM study of thin films containing surface-modified CdS nanoparticles

AU - Yamaki, T.

AU - Asai, K.

AU - Ishigure, K.

AU - Sano, K.

AU - Ema, K.

PY - 1999/6/24

Y1 - 1999/6/24

N2 - Degenerate four-wave mixing (DFWM) was used as a technique to estimate the third-order optical susceptibility, χ(3) (-ω; ω, -ω, ω), of thin films prepared from cadmium sulfide (CdS) colloidal solutions. The formation of CdS films on a substrate, without any change in the particle size, enhanced the quantum yield of an excitonic band by removing a large number of surface traps. This film showed a large χ(3) value near approx. 10-7 esu around the exciton resonance at room temperature. This was possibly brought about by an effective surface passivation as well as a high CdS microcrystallite concentration.

AB - Degenerate four-wave mixing (DFWM) was used as a technique to estimate the third-order optical susceptibility, χ(3) (-ω; ω, -ω, ω), of thin films prepared from cadmium sulfide (CdS) colloidal solutions. The formation of CdS films on a substrate, without any change in the particle size, enhanced the quantum yield of an excitonic band by removing a large number of surface traps. This film showed a large χ(3) value near approx. 10-7 esu around the exciton resonance at room temperature. This was possibly brought about by an effective surface passivation as well as a high CdS microcrystallite concentration.

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JO - Synthetic Metals

JF - Synthetic Metals

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T2 - Proceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98)

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