银镜像反应中温度对Si衬底上银纳米颗粒形貌的影响

2013 International Conference on Materials for Renewable Energy and Environment Pub Date : 2013-08-01 DOI:10.1109/ICMREE.2013.6893633

B. Jiang, Meicheng Li, Hang Yu, Fan Bai

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引用次数: 1

摘要

在不引入稳定剂和控制形状种子的情况下，通过短时间银镜像反应在p型Si衬底上制备了银纳米球和银絮凝体。在较短的反应时间内，反应温度和[Ag(NH3)2]+的浓度对银纳米粒子的形貌有影响。在较低的[Ag(NH3)2]+浓度和较低的温度下，较低的生长速率可以得到单分散的银纳米球。在高浓度[Ag(NH3)2]+溶液中高温合成了银絮凝体。通过银镜像反应在硅衬底上制备银纳米粒子，可以直接在硅衬底上蚀刻纳米结构，用于太阳能电池。

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Effect of temperature on the morphology of silver nanoparticles on Si substrate in the silver mirror reaction

The Ag nanospheres and Ag floccules were prepared on p-type Si substrate by a short-time silver mirror reaction without the introduction of stable agents and control-shaped seeds. In the short reaction time, the morphology of Ag nanoparticles could be influenced by the reaction temperature and the concentration of [Ag(NH₃)₂]⁺. The monodisperse Ag nanosphere were easily obtained under the lower growth rate induced by the lower concentration of [Ag(NH₃)₂]⁺ or the lower temperature. The Ag floccules were synthesized in the solution with high concentration of [Ag(NH₃)₂]⁺ at high temperature. The Ag nanoparticles on the Si substrate prepared by silver mirror reaction could be used directly to etch nanostructures on the Si substrate for the applications in solar cells.

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2013 International Conference on Materials for Renewable Energy and Environment

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