Control of Optical Absorption Band due to Cu/Ag Nanoparticles in SiO2 Glass by Dual Ion Implantation of Cu- and Ag-.

Tsuji, Hiroshi; Kurita, Ken'ichi; Motono, M.; Sugahara, Hiromitsu; Gotoh, Yasuhito; Kishimoto, Naoki; Ishikawa, Junzo

doi:10.3131/jvsj.45.528

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Effects On the Colour1

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2004

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“…In sample 2 the upper Ag-containing layer returns a golden colour, but everywhere throughout the material there is also an underlying Cu layer, which adds a red hue to the gold, resulting in a brownish gold colour throughout the material. Still, as mentioned by Tsuji et al (2002) [9], still more experimental studies are desired on optical absorption properties for multicomponent nanoparticle-glass composites because of the difficulty in theoretical prediction of such complex systems with many unknown factors.…”

Section: Effects On the Colourmentioning

confidence: 99%

Nanoparticles in Lustre Reconstructions

Fredrickx¹,

Verbeeck²,

Schryvers³

et al. 2004

MRS Proc.

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International audienceIt is increasingly apparent that the spatial distribution of Ag and Cu nanoparticles in lustre glazes is an important factor in determining the colour displayed by the decoration. Using STEM-EDX of cross sections, this distribution can easily be imaged, as is demonstrated in two modern reconstructions of lustre decorations from Granada, Spain. On the nanoscale, the difference in colour can be related to a different spatial distribution of the Ag and Cu particles, with the brownish gold variant consisting of a top layer of Ag nanoparticles with an underlying layer of Cu nanoparticles while in the yellowish golden lustre Cu specks are unevenly dispersed

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Section: Effects On the Colourmentioning

confidence: 99%