Sulfide Gels and Films: Products of Non-Oxide Gelation

L. Malier; J. P. Boilot; T. Gacoin

doi:10.1023/a:1008695003946

Sulfide Gels and Films: Products of Non-Oxide Gelation

L. Malier
, J. P. Boilot
, T. Gacoin

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

21 Citations (Scopus)

Abstract

The preparation of concentrated sols and transparent stiff gels of II-VI semiconductors nanocrystals is reported. A two-step process for the production of cadmium sulfide is reported. Sol stabilization and gelation control are achieved through successive passivation and depassivation of the surface of the nanocrystals which are complexed with thiols. The mechanisms driving the aggregation and the gelation are explained on the basis of NMR and SAXS experiments. Thin films as well as monoliths can be produced. The general principles of the method presented are not restricted to chalcogenide systems and thus enlarge the domain of application of the inorganic sol-gel process.

Original language	English
Pages (from-to)	61-64
Number of pages	4
Journal	Journal of Sol-Gel Science and Technology
Volume	13
Issue number	1-3
DOIs	https://doi.org/10.1023/a:1008695003946
Publication status	Published - 1 Jan 1998

Keywords

Aggregation
Cadmium sulfide nanocrystals
NMR
Small angle X-ray scattering (SAXS)
Sol-gel transition
Thin films

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10.1023/a:1008695003946

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title = "Sulfide Gels and Films: Products of Non-Oxide Gelation",

abstract = "The preparation of concentrated sols and transparent stiff gels of II-VI semiconductors nanocrystals is reported. A two-step process for the production of cadmium sulfide is reported. Sol stabilization and gelation control are achieved through successive passivation and depassivation of the surface of the nanocrystals which are complexed with thiols. The mechanisms driving the aggregation and the gelation are explained on the basis of NMR and SAXS experiments. Thin films as well as monoliths can be produced. The general principles of the method presented are not restricted to chalcogenide systems and thus enlarge the domain of application of the inorganic sol-gel process.",

keywords = "Aggregation, Cadmium sulfide nanocrystals, NMR, Small angle X-ray scattering (SAXS), Sol-gel transition, Thin films",

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year = "1998",

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TY - JOUR

T1 - Sulfide Gels and Films

T2 - Products of Non-Oxide Gelation

AU - Malier, L.

AU - Boilot, J. P.

AU - Gacoin, T.

PY - 1998/1/1

Y1 - 1998/1/1

N2 - The preparation of concentrated sols and transparent stiff gels of II-VI semiconductors nanocrystals is reported. A two-step process for the production of cadmium sulfide is reported. Sol stabilization and gelation control are achieved through successive passivation and depassivation of the surface of the nanocrystals which are complexed with thiols. The mechanisms driving the aggregation and the gelation are explained on the basis of NMR and SAXS experiments. Thin films as well as monoliths can be produced. The general principles of the method presented are not restricted to chalcogenide systems and thus enlarge the domain of application of the inorganic sol-gel process.

AB - The preparation of concentrated sols and transparent stiff gels of II-VI semiconductors nanocrystals is reported. A two-step process for the production of cadmium sulfide is reported. Sol stabilization and gelation control are achieved through successive passivation and depassivation of the surface of the nanocrystals which are complexed with thiols. The mechanisms driving the aggregation and the gelation are explained on the basis of NMR and SAXS experiments. Thin films as well as monoliths can be produced. The general principles of the method presented are not restricted to chalcogenide systems and thus enlarge the domain of application of the inorganic sol-gel process.

KW - Aggregation

KW - Cadmium sulfide nanocrystals

KW - NMR

KW - Small angle X-ray scattering (SAXS)

KW - Sol-gel transition

KW - Thin films

U2 - 10.1023/a:1008695003946

DO - 10.1023/a:1008695003946

M3 - Article

AN - SCOPUS:0032312589

SN - 0928-0707

VL - 13

SP - 61

EP - 64

JO - Journal of Sol-Gel Science and Technology

JF - Journal of Sol-Gel Science and Technology

IS - 1-3

ER -

Sulfide Gels and Films: Products of Non-Oxide Gelation

Abstract

Keywords

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