| Budget Amount *help |
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2015: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2014: ¥13,650,000 (Direct Cost: ¥10,500,000、Indirect Cost: ¥3,150,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
This study aimed at promoting our understanding of atomic behaviors in gold nanorods under illumination of infrared laser pulses, taking advantage of in-situ high voltage electron microscopy (HVEM) as well as aberration-corrected scanning transmission electron microscopy (STEM). The wavelength of laser pulses was 1064 nm. The single crystalline nanorods was gradually deformed to be a barrel-like shape with {001} and {111} habit surfaces with the number of pulses illuminated when the averaged intensity per pulse was 410 J/m2. If the intensity was twice enhanced to be 820 J/m2, the deformation was much accelerated, and some nanorods were transformed to be multiple twinned particles. Drift-compensated high-angle annular dark field (HAADF) STEM images showed so high precision in locating the atomic columns as ±4 pm. In a deformed twinned particle, substantial displacements of atomic columns on the order of several tens of picometers were localized around multiple twin junctions.
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