National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, 210093, Nanjing, China.
Nanoscale Res Lett. 2009 Oct 10;5(1):138-42. doi: 10.1007/s11671-009-9455-y.
Pb nanoclusters were deposited onto a suspended carbon nanowire (CNW), where in situ temperature variable observation was carried out by a transmission electron microscope. The heating temperature was up to 450 °C. Both the melting and evaporation of the Pb nanoparticles on the CNW were retarded when compared to the particles on the support frame. The obvious temperature difference of up to 10 K along the CNW of less than 1 μm was demonstrated. It was attributed to the irradiating dissipation-dependent on the surface area of the decorating Pb particle by calculation.(See supplementary material 1).
Pb 纳米团簇被沉积在悬置的碳纳米线上,通过透射电子显微镜进行了原位变温观察。加热温度高达 450°C。与支撑框架上的颗粒相比,碳纳米线上的 Pb 纳米颗粒的熔化和蒸发都被延迟了。在不到 1μm 的碳纳米线长度上,温差达到了 10K 之多。这归因于通过计算(见补充材料 1)由辐照耗散取决于装饰 Pb 颗粒的表面积。