复合盐碱媒介法合成NiSe2与Ni0.85Se纳米材料及其结构转化机理

被引：3

作者：

管建祥 ^{[1
,2
]}

雷佳 ^{[3
]}

史泰龙 ^{[3
]}

汪正园 ^{[3
]}

刘万英 ^{[3
]}

孔春阳 ^{[1
]}

机构：

[1] 重庆师范大学物理与电子工程学院

[2] 盐城幼儿师范高等专科学校信息技术系

[3] 中国矿业大学材料科学与工程学院

来源：

南京理工大学学报 | 2018年 / 42卷 / 06期

关键词：

复合盐碱媒介法; 硒化镍; 纳米材料; X射线衍射; X射线能谱; 场发射扫描电镜;

D O I：

10.14177/j.cnki.32-1397n.2018.42.06.015

中图分类号：

TB383.1 [];

学科分类号：

070205 ; 080501 ; 1406 ;

摘要：

利用熔融复合盐碱媒介法(SACM)合成了2种不同结构的硒化镍纳米材料,即NiSe2八面体和Ni0.85Se纳米片。探讨了反应时间和水添加量对产物形貌的影响。采用X射线衍射(XRD)、X射线能谱(EDS)和场发射扫描电镜(FESEM)等对材料进行表征,据此提出硒化镍的形成机理及其结构转变的微观机制。通过紫外光谱分析,估算NiSe2与Ni0.85Se 2种硒化镍的能带带隙,分别约为1.47 eV和1.75 eV,带隙宽度对应的光波波长位于可见光范畴。NiSe2与Ni0.85Se均为典型半导体材料。

引用

页码：732 / 738

页数：7

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