| 溶胶凝胶法制备的Mn,Li共掺ZnO粉晶性能研究 |
| |
| 引用本文： | 王古平,李志刚,邵先亦,陈卫平,徐爱娇.溶胶凝胶法制备的Mn,Li共掺ZnO粉晶性能研究[J].广州化工,2011,39(2). |
| |
| 作者姓名： | 王古平 李志刚 邵先亦 陈卫平 徐爱娇 |
| |
| 作者单位： | 浙江台州学院物理与电子工程学院; |
| |
| 基金项目： | 国家自然科学基金项目(No:51001078); 台州学院校立项目资助(No:09ND11) |
| |
| 摘 要： | 利用溶胶-凝胶法合成了名义组分Zn0.993-xMn0.007LixO(x=0,0.005,0.02)粉晶,分别采用SEM,EDX,XPS,XRD,UV-VIS和VSM对样品的形貌、成分、晶体结构、光学特性和磁性进行了研究。结果表明:Li的引入明显提高了Zn0.993Mn0.007O的室温磁化强度。当x=0.005时,Li以间隙原子的形式进入ZnO晶格,结晶性能下降,磁化强度的提高归因于ZnO晶格间隙电子掺杂和缺陷,使Mn2+-Mn2+间接铁磁性交换耦合增强;当x=0.02时,Li以替代原子形式进入ZnO晶格,相对于x=0.005其结晶性能提高,磁化强度的提高归因于ZnO中空穴载流子的增加,空穴载流子来自于Li+的受主作用。
|
| 关 键 词： | ZnO Mn掺杂 Li掺杂 间隙电子掺杂 空穴载流子 |
Study on Properties of (Mn, Li) -codoped ZnO Powder Crystals Prepared by Sol - gel |
| |
| WANG Gu-ping,LI Zhi-gang,SHAO Xian-yi,CHEN Wei-ping,XU Ai-jiao.Study on Properties of (Mn, Li) -codoped ZnO Powder Crystals Prepared by Sol - gel[J].GuangZhou Chemical Industry and Technology,2011,39(2). |
| |
| Authors: | WANG Gu-ping LI Zhi-gang SHAO Xian-yi CHEN Wei-ping XU Ai-jiao |
| |
| Affiliation: | WANG Gu-ping,LI Zhi-gang,SHAO Xian-yi,CHEN Wei-ping,XU Ai-jiao(College of Physics and Electronics Engineering,Taizhou University,Zhejiang Taizhou 318000,China) |
| |
| Abstract: | Sol-gel method was employed to synthesize Zn0.993-xMn0.007LixO with nominal(x=0,0.005,0.02). Morphology,component,crystal structure,optical character and magnetic property were studied by SEM,EDX,XPS,XRD,UV-VIS and VSM,respectively. The results indicated that introduce Li as additional dopants induces in an obvious enhancement of the room magnetism in Zn0.993Mn0.007O. Li was inducted ZnO crystal lattice as interstitial atoms at x=0.005,but the crystalline quality was reduced. Enhancement of magnetization wa... |
| |
| Keywords: | ZnO Mn doping Li doping interstitial electron doping hole carrier |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
