本实验采用溶液法合成球状及棒状ZnO纳米晶.X射线衍射分析(XRD)显示合成的纳米晶为六方纤锌矿结构ZnO.紫外可见光(UV-vis)光谱和透射电镜(TEM)图表明通过改变反应时间可以控制ZnO纳米棒的长度.随着反应时间从90min延长到360min,纳米棒的长度可以从25nm长大到60nm.同时,纳米晶的室温光致发光谱(PL)具有强烈的近带边发射,在LED和LD等光电器件上有一定的应用前景.
参考文献
| [1] | Claudia Pacholski;Andreas Kornowski;Horst Weller .Self-Assembly of ZnO: From Nanodots to Nanorods[J].Angewandte Chemie International Edition,2002(7):1188-1191. |
| [2] | Oliver Harnack;Claudia Pacholski;Horst Weller;Akio Yasuda;Jurina M. Wessels .Rectifying Behavior of Electrically Aligned ZnO Nanorods[J].Nano letters,2003(8):1097-1101. |
| [3] | G. D. Yuan;Z. Z. Ye;L. P. Zhu;Q. Qian;B. H. Zhao;R. X. Fan;Craig L. Perkins;S. B. Zhang .Control of conduction type in Al- and N-codoped ZnO thin films[J].Applied physics letters,2005(20):202106-1-202106-3-0. |
| [4] | W. Z. Xu;Z. Z. Ye;Y. J. Zeng;L. P. Zhu;B. H. Zhao;L. Jiang;J. G. Lu;H. P. He;S. B. Zhang .ZnO light-emitting diode grown by plasma-assisted metal organic chemical vapor deposition[J].Applied physics letters,2006(17):173506-1-173506-3-0. |
| [5] | X. H. Pan;W. Guo;Z. Z. Ye;B. Liu;Y. Che;W. Tian;D. G. Schlom;X. Q. Pan .Temperature-dependent Hall and photoluminescence evidence for conduction-band edge shift induced by alloying ZnO with magnesium[J].Applied physics letters,2009(15):152105-1-152105-3. |
| [6] | Quan-Bao Ma;Zhi-Zhen Ye;Hai-Ping He .Influence of Ar/O_2 ratio on the properties of transparent conductive ZnO: Ga films prepared by DC reactive magnetron sputtering[J].Materials Letters,2007(11/12):2460-2463. |
| [7] | Sun B;Sirringhaus H .Solution-processed zinc oxide field-effect transistors based on self-assembly of colloidal nanorods[J].Nano letters,2005(12):2408-2413. |
| [8] | Ba JH;Rohlfing DF;Feldhoff A;Brezesinski T;Djerdj I;Wark M;Niederberger M .Nonaqueous synthesis of uniform indium tin oxide nanocrystals and their electrical conductivity in dependence of the tin oxide concentration[J].Chemistry of Materials: A Publication of the American Chemistry Society,2006(12):2848-2854. |
| [9] | Buhler, G;Tholmann, D;Feldmann, C .One-pot synthesis of highly conductive indium tin oxide nanocrystals[J].Advanced Materials,2007(17):2224-2227. |
| [10] | Richard A. Gilstrap Jr.;Charles J. Capozzi;Cantwell G. Carson;RosaHo A. Gerhardt;Christopher J. Summers .Synthesis of a Nonagglomerated Indium Tin Oxide Nanoparticle Dispersion[J].Advanced Materials,2008(21):4163-4166. |
| [11] | Chen JF;Hu Y;Zheng XS .Surfactant-assisted self-assembly growth of single-crystalline ZnO microflowers at low temperature[J].Colloids and Surfaces, A. Physicochemical and Engineering Aspects,2008(0):576-580. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%