Journal
NANO LETTERS
Volume 10, Issue 10, Pages 4266-4272Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl102786k
Keywords
Nanocrystal growth; GRIGC; colloids; spatial light modulator; thermophoresis
Categories
Funding
- Leverhulme Trust
- EPSRC
- Engineering and Physical Sciences Research Council [EP/I012885/1] Funding Source: researchfish
- EPSRC [EP/I012885/1] Funding Source: UKRI
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A spatially modulated laser is used to produce multiple localized thermal gradients in a colloidal sample placed above a gold surface We use an optical microscope to observe real time dynamics of the resulting two-dimensional colloidal crystal grains and find that grain rotation-induced grain coalescence (GRIGC) occurs with the rotation of both grains before coalescence Control over the grain size shows that the time scale for grain boundary annealing in our system is in good agreement with theoretical expressions formulated for nanocrystal growth
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