Freezing effect of metal droplets on the vapor liquid solid growth of nanocrystal rods
Source abstract
Abstract
Indium tin oxide (ITO) films with different temperatures were prepared by an electron beam evaporation technique. The nanocrystal rods were synthesized by vapor–liqiud–solid (VLS) crystal growth method at the higher temperature 300 °C. The surface morphology of the samples was analyzed by scanning electron microscopy (SEM). There was a metal cap on the top of the nanocrystal rod, which was the typical morphology of VLS nanocrystalrod. The structure of crystalline rods was confirmed by X-ray diffraction (XRD). Transmission electron microscopy (TEM) of the single crystalrod displayed that the lattice was uncontinuous between the top cap and the rod. Metal droplets were considered to be metallic indium tin and its alloys. The shape and composition of droplets were affected by temperature, and the metal droplets were discovered to undergo a gradual freezing process during the VLS nanocrystal rod growth.
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Research context
OpenAlex topics: nanoparticles nucleation surface interactions · Nanomaterials and Printing Technologies · Thermal Radiation and Cooling Technologies
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