| 油酰吗啉溶剂体系中银铟硒纳米颗粒的形貌可控合成 |
| Shape-Controlled Synthesis of AgInSe2 Nanoparticles in N-Oleoylmorpholine Solvent |
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| 摘要: 以绿色环保的油酰吗啉作为硒粉的溶剂，油胺作为表面包覆剂，通过简单的液相法制备了银铟硒纳米颗粒。X射线衍射和透射电子显微镜分析测试显示AgInSe2纳米颗粒属于四方黄铜矿相结构，粒径约为16 nm的六角盘状纳米晶。紫外可见光谱分析表明所制备的AgInSe2纳米颗粒禁带宽度约为1.22 eV。考察了反应时间对AgInSe2纳米颗粒尺寸的影响，发现颗粒的尺寸随着反应时间的延长而逐渐变大。对AgInSe2纳米颗粒的生长机制进行了初步探讨，油胺的选择性吸附及材料的晶体结构被认为是决定纳米颗粒形貌的主要因素。 |
| 关键词: 油酰吗啉 液相法 银铟硒纳米颗粒 选择性吸附 |
| 基金项目: |
| Abstract: AgInSe2 nanoparticles were successfully synthesized via a simple solution route using environmentally friendly N-oleoylmorpholine as the solvent of Se powder and oleylamine as capping ligand，respectively. The as-synthesized nanoparticles were characterized by X-ray diffraction, TEM, HRTEM, and UV-Visible absorption. The experimental results revealed that the as-prepared hexagonal-plate shaped AgInSe2 nanoparticles with chalcopyrite structure have an average size about 16 nm, and the band gap of the AgInSe2 nanoparticles was estimated to be 1.22 eV. The effect of reaction time on the size of AgInSe2 nanoparticles was also investigated, the results showed that the size of nanoparticles was increased with prolonged reaction time. The growth mechanism of AgInSe2 nanoparticles was preliminary discussed, it is believed that the shape of nanoparticles was mainly determined by their inherent crystal structures and the selective adsorption of oleylamine molecules. |
| Keywords: N-oleoylmorpholine solution route AgInSe2 nanoparticles selective adsorption |
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| 汪文君,仲洪海,王彬彬,李俊巍,蒋 阳.油酰吗啉溶剂体系中银铟硒纳米颗粒的形貌可控合成[J].无机化学学报,2012,28(8):1668-1672. |
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