Synthesis and Optical Properties of Cu2O and Au-Cu2O core-shell particles
p. 73-79
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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 |
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Cu2 O nanoparticle Au-Cu2 O core-shell nanoparticle Surface Plasmon Resonance (SPR) |
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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 |
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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 |
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ĐHQGHN |
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2018 |
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http://repository.vnu.edu.vn/handle/VNU_123/61017 |
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1680963161442746368 |