Size Controlled Formation of Gold Nanoparticles Using Photochemical Grwoth and Photothermal Size Reduction by 308 nm Laser Pulses
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- Inasawa Susumu
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo
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- Sugiyama Masakazu
- Department of Electronic Engineering, School of Engineering, The University of Tokyo
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- Koda Seiichiro
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo
Bibliographic Information
- Other Title
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- Size Controlled Formation of Gold Nanoparticles Using Photochemical Growth and Photothermal Size Reduction by 308 nm Laser Pulses
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Abstract
We synthesized gold nanoparticles (mean diameter 8.3 nm, standard deviation 2.7 nm) from tetrachloroaurate complex (AuCl4−) solution by 308 nm laser irradiation without the use of any stabilizers. The combination of photochemical particle growth with photothermal particle size reduction by 308 nm laser irradiation resulted in a narrow size distribution. Photothermal size reduction controlled the maximum diameter of gold nanoparticles which existed in the system, and photochemical growth controlled their size distribution. Using this technique, we were able to control the diameter and the size distribution of gold naoparticles. We propose a simple model for estimating the maximum diameter of gold nanoparticles formed in the system by the irradiation of nanosecond laser pulses. The maximum diameter of particles is determined by the competition between heating of a particle by absorbed photon energy and heat dissipation from the particle surface to the surroundings.
Journal
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- Japanese Journal of Applied Physics
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Japanese Journal of Applied Physics 42 (10), 6705-6712, 2003
The Japan Society of Applied Physics
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Details 詳細情報について
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- CRID
- 1390282681242425344
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- NII Article ID
- 210000054357
- 10012450056
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- NII Book ID
- AA10457675
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- ISSN
- 13474065
- 00214922
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- NDL BIB ID
- 6712843
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed