二硒化铁纳米材料的水热制备  

The Hydrothermal Synthesis of Iron Selenide Nanomaterial

作　　者：杨瑾[1] 车仁超[1] 

机构地区：[1]复旦大学先进材料实验室,上海200438

出　　处：《复旦学报（自然科学版）》2013年第6期784-787,共4页Journal of Fudan University：Natural Science

基　　金：基金项目：国家重点基础研究基金资助项目（2013CB932901,2009CB930803）;国家自然科学基金资助项目（11274066,51172047,51102050）;上海市曙光计划资助项目（09SG01）

摘　　要：FeSee作为Ⅷ-Ⅵ族化合物，直接带隙能为1．0eV，是一种重要的无机半导体材料，可以广泛应用于电子、光学、光电子和电子自旋器件中．以二氧化硒为硒源，N，N-二甲基甲酰胺作络合剂以及还原剂，用氢氧化钾调节反应环境，通过不同表面活性剂辅助的水热合成技术，成功地制备了不同形貌的FeSez纳米材料．此方法易于推广，可用于制备其他的过渡金属硒化物纳米结构．利用XRD、FESEM等手段进行了表征，利用SQUID测试磁性确定其为软铁磁的物质．As one of the Ⅷ-Ⅵ compounds, FeSez has the band gap of 1. 0 eV, which is a kind of important inorganic semiconductor materials. It can be widely used in the components of electronic, optical, optoelectronic and electronic spin. Selenium dioxide is used as selenium source while N, N-dimethyl formamide as complexing agent and reducing agent, with potassium hydroxide as an adjustment to the reaction environment. The different morphology of FeSe2 nanomaterials can be achieved by means of hydrothermal method with different surfactant assisted synthesis technology. This method is easy to operate and can be used for the preparation of other nanostructures of transition metal selenide. The samples are characterized with XRD, FESEM and so on. The magnetic test demonstrates that it is a soft ferromagnetic material.

关 键 词：二硒化铁 形貌控制 磁性测量 

分 类 号：O645.16[理学—物理化学]