以高纯AlCl3和Li3N为反应原料,NaCl和KCl为混合熔盐,使用微波熔盐沉积法在700℃制备出A1N纳米晶.利用XRD、SEM、EDS等对纳米晶的物相、形貌进行了定性和定量表征,并使用PL测试了材料的光学性质,分析了主要缺陷类型.XRD测试结果表明,实验获得产物为六方纤锌矿结构的AlN.使用Scherrer公式估算了AlN 产物的晶粒平均粒度大小约为35.6 nm,表明所得确为AlN纳米晶.SEM观测到的纳米晶形貌为方形,分布均匀且晶粒形状几近,平均粒度约为35 nm.EDS测试结果显示AlN纳米晶中Al和N的原子相对百分含量为50.521％和49.479％,其化学配比几近于1∶1物质的量比.室温PL测试发现发光中心在435 nm,缺陷主要是杂质缺陷类型.以上结果充分表明微波熔盐沉积法是一种制备AlN纳米晶的有效方式.
参考文献
| [1] | Yoshioka M;Takahashi N;Nakamura T .Growth of the AlN nano-pillar crystal films by means of a halide chemical vapor deposition under atmospheric pressure[J].Materials Chemistry and Physics,2004(1):74-77. |
| [2] | Xiao-Jun Luo;Xin-Rui Xu;Bao-Lin Zhang .Characteristic and dispersion of a treated AlN powder in aqueous solvent[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2004(1/2):126-130. |
| [3] | C. Ristoscu;C. Ducu;G. Socol;F. Craciunoiu;I.N. Mihailescu .Structural and optical characterization of AlN films grown by pulsed laser deposition[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2005(1/4):411-415. |
| [4] | Tomohiro Y;Junichi T;Katsutoshi K et al.Synthesis of AlN Powder from Al(OH) 3 by Reduction-nitridation in a Mixture of NH3-C3 Hs Gas[J].Journal of the European Ceramic Society,2006,26:2413-2418. |
| [5] | Cheng-Yu HSIEH;Chun-Nan LIN;Shyan-Lung CHUNG .Microwave sintering of AlN powder synthesized by a SHS method[J].Journal of the European Ceramic Society,2007(1):343-350. |
| [6] | H.L. Wang;H.M. Lv;G.D. Chen .Synthesis of hexagonal AlN microbelts at low temperature[J].Journal of Alloys and Compounds,2009(1/2):580-582. |
| [7] | Chun Liu;Zheng Hu;Qiang Wu;Xizhang Wang;Yi Chen;Hai Sang;Jianmin Zhu;Shaozhi Deng;Ningsheng Xu .Vapor-Solid Growth and Characterization of Aluminum Nitride Nanocones[J].Journal of the American Chemical Society,2005(4):1318-1322. |
| [8] | Shih-Chen Shi;Chia Fu Chen;Surojit Chattopadhyay;Kuei-Hsien Chen;Bo-Wen Ke;Li-Chyong Chen;Laima Trinkler;Baiba Berzina .Luminescence properties of wurtzite AlN nanotips[J].Applied physics letters,2006(16):163127-1-163127-3-0. |
| [9] | He, JH;Yang, RS;Chueh, YL;Chou, LJ;Chen, LJ;Wang, ZL .Aligned AlN nanorods with multi-tipped surfaces - Growth, field-emission, and cathodoluminescence properties[J].Advanced Materials,2006(5):650-654. |
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%