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",

note = "Funding Information: Acknowledgements The authorsg reatly appreciateth e important contributionst o this work from our collaboratorsD, r. H. Kunugita, Y. Ueno, J. Ishi, T. Kobayashi, M. Sakai and S. Kishino (at Sophia University). One of the authors( T.Y.) acknowledgetsh e support from the ResearchF ellowshipso f the Japan Society for the Promotion of Science for Young Scientists.T his work was financiallys upportedb y CREST.; Proceedings of the 1998 International Conference on Science and Technology of Synthetic Metals (ICSM-98) ; Conference date: 12-07-1998 Through 18-07-1998",

year = "1999",

month = jun,

day = "24",

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

language = "English",

volume = "103",

pages = "2690--2691",

journal = "Synthetic Metals",

issn = "0379-6779",

publisher = "Elsevier BV",

number = "1-3",

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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.

N1 - Funding Information: Acknowledgements The authorsg reatly appreciateth e important contributionst o this work from our collaboratorsD, r. H. Kunugita, Y. Ueno, J. Ishi, T. Kobayashi, M. Sakai and S. Kishino (at Sophia University). One of the authors( T.Y.) acknowledgetsh e support from the ResearchF ellowshipso f the Japan Society for the Promotion of Science for Young Scientists.T his work was financiallys upportedb y CREST.

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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UR - http://www.scopus.com/inward/citedby.url?scp=0033137957&partnerID=8YFLogxK

U2 - 10.1016/S0379-6779(98)00687-0

DO - 10.1016/S0379-6779(98)00687-0

M3 - Conference article

AN - SCOPUS:0033137957

VL - 103

SP - 2690

EP - 2691

JO - Synthetic Metals

JF - Synthetic Metals

SN - 0379-6779

IS - 1-3

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

Y2 - 12 July 1998 through 18 July 1998

ER -

DFWM study of thin films containing surface-modified CdS nanoparticles

Abstract

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