用无催化碳热还原法合成了大量三维分级的In2O3亚微/纳米结构,用XRD、SEM、TEM和EDS等手段对In2O3纳米棒的形貌、成分和结构进行了表征.结果表明:In2O3纳米棒为具有体心立方结构单晶,沿着<100>和<111>方向外延生长,属于自组装和气固外延生长机制.同质外延生长的分级结构是"二次成核"和气固生长协同作用造成的.In2O3纳米棒的室温光致发光的发光峰位于386和435 nm,属于紫外发光和蓝光发光,分别起源于近带边发射和光生空穴与占据单离子氧空位的电子之间的复合.
参考文献
| [1] | C.M.Lieber,Z.L.Wang,Functional Nanowires,MRS Bull.,32,99(2007) |
| [2] | K.G.Gopchandran,B.Joseph,J.T.Abraham,P.Koshy,V.K.Vaidyan,The preparation of transparent electrically conducting indium oxide films by reactive vacuum evaporation,Vacuum,48,547(1997) |
| [3] | B.X.Li,Y.Xie,M.Jing,G.X.Rong,Y.C.Tang,G.Z.Zhang,In2O3 hollow microspheres:Synthesis from designed In(OH)(3) precursors and applications in gas sensors and photocatalysis,Langmuir,22,9380(2006) |
| [4] | X.S.Peng,G.W.Meng,J.Zhang,X.F.Wang,Y.W.Wang,C.Z.Wang,L.D.Zhang,Synthesis and photoluminescence of single-crystalline In2O3 nanowires,J.Mater.Chem.,12,1602(2002) |
| [5] | Z.W.Pan,Z.R.Dai,Z.L.Wang,Nanobelts of semiconducting oxides,Science,291,1947(2001) |
| [6] | Y.F.Hao,G.W.Meng,C.H.Ye,L.D.Zhang,Controlled synthesis of In2O3 octahedrons and nanowires,Cryst.Growth Des.,5,1617(2005) |
| [7] | S.T.Jean,Y.C.Her,Growth mechanism and photoluminescence properties of In2O3 nanotowers,Cryst.Growth Des.,10,2104(2010) |
| [8] | M.R.Shi,F.Xu,controllable synthesis of in2o3 nanocubes,truncated nanocubes,and symmetric multipods,J.Phys.Chem.C,111,16267(2007) |
| [9] | C.Li,D.H.Zhang,S.Han,Diameter-controlled growth of single-crystalline In2O3 nanowires and their electronic properties,Adv.Materials,15,143(2003) |
| [10] | K.Hiruma,M.Yazawa,T.Katsuyama,Growth and optical properties of nanometer-scale GaAs and InAs whiskers,Appl.Phys.Rev.,77,447(1995) |
| [11] | Y.J.Zhang,N.L.Wang,S.P.Gao,R.R.He,S.Miao,J.Liu,J.Zhu,X.Zhang,Asimplemethodtosynthesize nanowires,Chem.Mater.,14,3568(2002) |
| [12] | Z.Cui,G.W.Meng,W.D.Huang,G.Z.Wang,L.D.Zhang,Preparation and characterization of MgO nanorods,Mater.Res.Bull.,35,1653(2000) |
| [13] | P.Yang,C.M.Lieber,Nanostructured high-temperature superconductors:Creation of strong-pinning columnar defects in nanorod/superconductor composites,J.Mater.Res.,12,2981(1997) |
| [14] | Z.L.Wang,Transmission electron microscopy of shapecontrolled nanocrystals and their assemblies,J.Phys.Chem.B,104,1153(2000) |
| [15] | K.A.Dick,K.Deppert,M.W.Larsson,T.Martensson,W.Seifert,L.R.Wallenberg,L.Samuelson,Synthesis of branched 'nanotrees'by controlled seeding of multiple branching events,Nat.Mater.,3,380(2004) |
| [16] | D.Wang,F.Qian,C.Yang,Z.H.Zhong,C.M.Lieber,Rational growth of branched and hyperbranched nanowire Structures,Nano Lett.,4,871(2004) |
| [17] | J.B.Hannon,S.Kodambaka,F.M.Ross,R.M.Tromp,The influence of the surface migration of gold on the growth of silicon nanowires,Nature,440,69(2006) |
| [18] | S.Kodambaka,J.B.Hannon,R.M.Tromp,F.M.Ross,Control of Si Nanowire growth by oxygen,Nano Lett.,6,1292(2006) |
| [19] | P.X.Gao,Z.L.Wang,Self-assembled nanowire-nanoribbon junction arrays of ZnO,J.Phys.Chem.,B,106,12653(2002) |
| [20] | Y.Ohhata,F.Shinoki,S.Yoshida,Optical properties of r.f.reactive sputtered tin-doped In2O3 films,Thin Solid Films,59,255(1979) |
| [21] | H.J.Zhou,W.P.Cai,L.D.Zhang,Photoluminescence of indium-oxide nanoparticles dispersed within pores of mesoporous silica,Appl.Phys.Lett.,75,495(1999) |
| [22] | M.S.Lee,W.C.Choi,E.K.Kim,Characterization of the oxidized indium thin films with thermal oxidation,Thin Solid Films,279,1(1996) |
| [23] | H.Q.Cao,X.Q.Qiu,Y.Liang,Room-temperature ultraviolet emitting In2O3 nanowires.Appl.Phys.Lett.,83,761(2003) |
| [24] | F.Zeng,X.Zhang,J.Wang,L.Wang,L.Zhang,Large-scale growth of In203 nanowires and their optical properties,Nanotechnology,15,596(2004) |
| [25] | L.Dai,X.L.Chen,J.K.Jlan,M.He,T.Zhou,B.Q.Hu,Fabrication and characterization of In2Os nanowires,Appl.Phys.A,75,687(2002) |
| [26] | X.C.Wu,J.M.Hong,Z.J.Han,Y.R.Tao,Fabrication and photoluminescence characteristics of single crystalline In2O3 nanowires,Chem.Phy.Lett.,373,28(2003) |
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%