通过一种新奇的方法在硅衬底上成功地合成了掺杂镁的氮化镓纳米线,用金属镁粉末作为掺杂源,然后在900℃时于流动的氨气中进行氨化Ga2P3薄膜制备GaN纳米线.X射线衍射(XRD)、扫描电镜(SEM)、透射电子显微镜(TEM)、选区电子衍射(SAED)和能量弥散X射线谱(EDX)的分析结果表明,采用此方法得到的GaN纳米线为六方纤锌矿结构,纳米线的直径大约在60~100nm之间,纳米线的长约十几个微米.EDX分析表明纳米线掺杂了镁.室温下以325nm波长的光激发样品表面,发现由于镬的掺杂使GaN的发光峰有较大的蓝移.最后,简单讨论了GaN纳米线的生长机制.
参考文献
[1] | Nakamura S .[J].Science,1998,281:956. |
[2] | Chen XL.;Lan YC.;Xu XP.;Li JQ.;Lu KQ.;Jiang PZ.;Bai ZG.;Yu YD.;Liang JK.;Cao YG. .Synthesis and structure of nanocrystal-assembled bulk GaN[J].Journal of Crystal Growth,2000(1):208-212. |
[3] | Ponce F A;Bour D P .[J].Nature,1997,386(624):351. |
[4] | Nakamura S.[J].Science,1998(281):956. |
[5] | Han Weiqiang;Fan Shoushan;Li Qunqing et al.[J].Science,1997,277(29):1287. |
[6] | Cheng G S;Chen S H;Zhu X G et al.[J].Mater Sci& Eng A,2000,286:165. |
[7] | Duang X F;Lieber C M .[J].Journal of the American Chemical Society,2000,122:188. |
[8] | Shi WS.;Wang N.;Lee CS.;Lee ST.;Zheng YF. .Microstructures of gallium nitride nanowires synthesized by oxide-assisted method[J].Chemical Physics Letters,2001(5-6):377-380. |
[9] | Peng YU;ZhouTX;WangN et al.[J].Chemical Physics Letters,2000,327:263. |
[10] | Li Y J;Qiao Z Y;Chen X L et al.[J].Applied Physics A:Materials Science and Processing,2000,71:587. |
[11] | XUE Chengshan;WU Yuxin;ZHUANG Huizhao .Fabrication and photoluminescence of GaN nanowires prepared by ammoniating Ga_2O_3/BN films on Si substrate[J].Chinese science bulletin,2006(14):1662-1665. |
[12] | Jian J K;Chen X L;He M et al.[J].ahem Phys Lett,2003,368:416-420. |
[13] | Kipshidze G;Yavieh B;Chandolu A et al.[J].Applied Physics Letters,2005,86:033104-033106. |
[14] | Zhou S M;Feng Y S;Zhang L D .[J].ahem Phys Lett,2003,369:610. |
[15] | Chen C C;Yeh C H;Chen C H et al.[J].Journal of the American Chemical Society,2001,123:2791. |
[16] | Peng HY.;Wang N.;Zheng YF.;Liao LS.;Shi WS.;Lee CS.;Lee ST.;Zhou XT. .Bulk-quantity GaN nanowires synthesized from hot filament chemical vapor deposition[J].Chemical Physics Letters,2000(5-6):263-270. |
[17] | Shi WS.;Wang N.;Lee CS.;Lee ST.;Zheng YF. .Microstructures of gallium nitride nanowires synthesized by oxide-assisted method[J].Chemical Physics Letters,2001(5-6):377-380. |
[18] | Xu B S;Yang D;Wang F et al.[J].Applied Physics Letters,2006,89:074106-074108. |
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%