Yonezawa Tetsu
Department of Chemistry, School of Science, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.
Biomed Mater Eng. 2009;19(1):29-34. doi: 10.3233/BME-2009-0560.
In-situ TEM (transmission electron microscopy) of silver nanoparticle ink at high temperature was carried out. Into a carbon film tube coating the spiral tungsten filament which was attached to the TEM specimen holder, a silver nanoparticle ink was injected. After evaporation, silver nanoparticles with an aggregated structure could be observed. The temperature of the tungsten wire can be controlled by DC current supplied by dry batteries. Fusion of smaller nanoparticles was observed at a higher temperature and some particles were incorporated to larger particles. This technique can be generally used to consider the sintering temperature of such metal nanoparticles.
对银纳米颗粒墨水进行了高温原位透射电子显微镜（TEM）观察。将银纳米颗粒墨水注入到覆盖附着在TEM样品架上的螺旋钨丝的碳膜管中。蒸发后，可以观察到具有聚集结构的银纳米颗粒。钨丝的温度可通过干电池提供的直流电流来控制。在较高温度下观察到较小纳米颗粒的融合，并且一些颗粒合并到较大颗粒中。该技术通常可用于研究此类金属纳米颗粒的烧结温度。
