Synthesis and Optical Properties of Cu2O and Au-Cu2O core-shell particles

p. 73-79

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Main Authors: Sai, Cong Doanh, Pham, Nguyen Hai, Ngac, An Bang
Format: Article
Language:other
Published: ĐHQGHN 2018
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Online Access:http://repository.vnu.edu.vn/handle/VNU_123/61017
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Institution: Vietnam National University, Hanoi
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spelling oai:112.137.131.14:VNU_123-610172018-01-09T20:03:41Z Synthesis and Optical Properties of Cu2O and Au-Cu2O core-shell particles Sai, Cong Doanh Pham, Nguyen Hai Ngac, An Bang Cu2 O nanoparticle Au-Cu2 O core-shell nanoparticle Surface Plasmon Resonance (SPR) p. 73-79 Cuprous oxide (Cu2O) and Au-Cu2O core-shell nanoparticles were successfully synthesized using the chemical reduction method. The morphology of the synthesized pure Cu2Oparticles can be controlled by varying the amount of reducing agent NH2OH.HCl. Due to their similar crystal structure and relatively small lattice mismatch Cu2O particles are nucleated and locally undergo an epitaxial growth on the surface of the multi-faceted Au seed resulting in a stellated icosahedra Au-Cu2O core-shell particle. The extinction spectrum of Cu 2O particles offew hundred-nm in size is dominated by light scattering, while that of the stellated icosahedra Au-Cu2O core-shell particles exhibits the interband absorption of the Cu2 O shell only. The interband absorption peak undergoes a blue shift as the shell gets thinner. No prominent SPR of the Au nanocore was observed due to a rather thick Cu 2O shell. 2018-01-09T08:29:06Z 2018-01-09T08:29:06Z 2017 Article 2588-1124 http://repository.vnu.edu.vn/handle/VNU_123/61017 other Vol 33;No 4 application/pdf ĐHQGHN
institution Vietnam National University, Hanoi
building VNU Library & Information Center
country Vietnam
collection VNU Digital Repository
language other
topic Cu2 O nanoparticle
Au-Cu2 O core-shell nanoparticle
Surface Plasmon Resonance (SPR)
spellingShingle Cu2 O nanoparticle
Au-Cu2 O core-shell nanoparticle
Surface Plasmon Resonance (SPR)
Sai, Cong Doanh
Pham, Nguyen Hai
Ngac, An Bang
Synthesis and Optical Properties of Cu2O and Au-Cu2O core-shell particles
description p. 73-79
format Article
author Sai, Cong Doanh
Pham, Nguyen Hai
Ngac, An Bang
author_facet Sai, Cong Doanh
Pham, Nguyen Hai
Ngac, An Bang
author_sort Sai, Cong Doanh
title Synthesis and Optical Properties of Cu2O and Au-Cu2O core-shell particles
title_short Synthesis and Optical Properties of Cu2O and Au-Cu2O core-shell particles
title_full Synthesis and Optical Properties of Cu2O and Au-Cu2O core-shell particles
title_fullStr Synthesis and Optical Properties of Cu2O and Au-Cu2O core-shell particles
title_full_unstemmed Synthesis and Optical Properties of Cu2O and Au-Cu2O core-shell particles
title_sort synthesis and optical properties of cu2o and au-cu2o core-shell particles
publisher ĐHQGHN
publishDate 2018
url http://repository.vnu.edu.vn/handle/VNU_123/61017
_version_ 1680963161442746368