| 基于元素磷源的InP量子点的制备 |
| Synthesis of InP Quantum Dots with Elemental Phosphine Source |
|
| 摘要: 以白磷作为磷源、醋酸铟为铟源、硬脂酸为表面包覆剂、十八烯为溶剂，采用胶体化学法合成了InP量子点。X射线衍射(XRD)和透射电子显微镜(TEM)分析测试显示InP量子点属于立方闪锌矿结构，并且是直径约为5 nm的球状纳米晶。紫外可见光谱和荧光光谱分析表明，InP量子点表现出明显的激子吸收和带边发射特征，荧光发射光谱在415~517 nm范围内连续可调，呈现明显的量子尺寸效应。 |
| 关键词: 半导体纳米晶 InP量子点 白磷 荧光光谱 |
| 基金项目: |
| Abstract: The InP quantum dots (QDs) were synthesized via a colloidal chemical method with white phosphorus (P4), indium acetate (In(Ac)3), stearic acid and 1-octadecene (ODE) as phosphorus source, indium source, surfactant and solvent, respectively. The structure, size and shape of the quantum dots were analyzed by XRD and TEM. The resulting InP QDs were also characterized by UV-Visible absorption and fluorescence spectroscopy. The title material exhibits well-resolved absorption and emission properties. Meanwhile, the InP QDs emit at 415~517 nm in the electromagnetic spectrum showing obvious quantum size effect. |
| Keywords: semiconductor nanocrystals InP quantum dots white phosphorus fluorescence spectra |
| |
| 摘要点击次数: 1395 |
| 全文下载次数: 2466 |
| 王彬彬,王 莉,汪 瑾,蒋 阳.基于元素磷源的InP量子点的制备[J].无机化学学报,2012,28(2):342-346. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| Support information: |
|
|
|
|
|
|
