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- Nozawa Jun
- Institute for Materials Research, Tohoku University
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- Guo Suxia
- Institute for Materials Research, Tohoku University
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- Hu Sumeng
- Institute for Materials Research, Tohoku University
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- Toyotama Akiko
- Graduate School of Pharmaceutical Sciences, Nagoya City University
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- Yamanaka Junpei
- Graduate School of Pharmaceutical Sciences, Nagoya City University
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- Koizumi Haruhiko
- Institute for Materials Research, Tohoku University
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- Okada Junpei
- Institute for Materials Research, Tohoku University
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- Uda Satoshi
- Institute for Materials Research, Tohoku University
Bibliographic Information
- Other Title
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- コロイド結晶における2次元核形成過程
- コロイド ケッショウ ニ オケル 2ジゲンカク ケイセイ カテイ
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Abstract
<p> The two-dimensional (2D) nucleation is the predominant growth mechanisms for colloidal crystals whose particle interaction is attractive. The colloidal crystallization in the attractive system has recently been regarded as a promising method to fabricate varieties of complex nano-structures possessing innovative functionality. In the present study, polymers are added to a colloidal suspension to generate a depletion attractive force, and the detailed 2D nucleation process on the terrace of the colloidal crystals is investigated. We first measured the nucleation rate at various area fractions of particles on the terrace, φarea. In situ observations at single-particle resolution enable us to measure the steady-state homogeneous 2D nucleation rate, J, and the critical size of nuclei, r*, and the relationship between them and φarea is found to agree well with classical nucleation theory (CNT). The step free energy, γ, derived from the nucleation theory is found to vary according to the strength of attraction, which is tuned by the concentration of the polymer as a depletant.</p>
Journal
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- Journal of the Japanese Association for Crystal Growth
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Journal of the Japanese Association for Crystal Growth 44 (2), 96-102, 2017
The Japanese Association for Crystal Growth
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Details 詳細情報について
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- CRID
- 1390001205897841152
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- NII Article ID
- 130006172709
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- NII Book ID
- AA12677650
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- ISSN
- 21887268
- 21878366
- 03856275
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- NDL BIB ID
- 028397708
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- CiNii Articles
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- Abstract License Flag
- Disallowed