以元素单质Pb片,Te粉,Se粉为原料,乙二胺为螯合剂,采用元素溶剂热反应合成出不同形貌的PbE(E=Te,Se)微晶.对所得反应物进行了X射线衍射分析,透射电镜(TEM)与扫描电镜(SEM)的分析,光致荧光光谱的表征.分析了反应条件对合成PbE(E=Te,Se)微晶的影响,讨论了其反应过程及机理.结果表明当反应温度为180℃时,反应12h可获得高度结晶的树枝状PbTe微晶以及立方状PbSe微晶.
参考文献
| [1] | Venkatasubramanian B;Siivola E;Colpitts T;O'Quinn B .Thin-film Thermoelectric Devices with High Room-temperature Figures of Merit[J].NATURE,2001,413:597-602. |
| [2] | Harman T C;Taylor J;Walsh M P;LaForge B E .Quantum Dot Superlattice Thermoelectric Materials and Devices[J].Science,2002,297:2229T. |
| [3] | Ovsyannikov S V;Shchennikov W;Ponosov Y S et al.Application of the High-pressure Thermoelectric Technique for Characterization of Semiconductor Microsamples:PbX-based Compounds[J].Journal of Physics D:Applied Physics,2004,37:1151-1157. |
| [4] | Shchennikov VV.;Ovsyannikov SV. .Thermoelectric power, magnetoresistance of lead chalcogenides in the region of phase transitions under pressure[J].Solid State Communications,2003(7):373-378. |
| [5] | Zhu JP;Yu SH;He ZB;Jiang J;Chen K;Zhou XY .Complex PbTe hopper (skeletal) crystals with high hierarchy[J].Chemical communications,2005(46):5802-5804. |
| [6] | Hsu K F;Loo S;Guo F et al.Cubic AgPbmSbTe2 + m:bulk Thermoelectric Materials with High Figure of Merit[J].Science,2004,303:818. |
| [7] | Li BX;Xie Y;Xu Y;Wu CZ;Li ZQ .Selected-control solution-phase route to multiple-dendritic and cuboidal structures of PbSe[J].International Journal of Quantum Chemistry,2006(1):56-61. |
| [8] | Lisiecki I;Albouy P A;Pileni M P .Face-centered Cubic "supracrystals" of Cobalt Nanocrystals[J].Advanced Materials,2003,15:712. |
| [9] | Meakin P .Formation of Fractal Clusters and Networks by Irreversible Diffusion-Limited Aggregation[J].Physical Review Letters,1983,51:1119. |
| [10] | Witten T A;Sander L M .Diffusion-Limited Aggregation,a Kinetic Critical Phenomenon[J].Physical Review Letters,1981,47:351. |
| [11] | Xie S H;Zhou W Z;Zhu Y Q .Frmation Mechanism of Mg2 SiO4 Fishbone-like Fractal Nanostructures[J].Journal of Physical Chemistry B,2004,108:11561. |
| [12] | Cao M H;Liu T F;Hu C W et al.Single-crystal Dendritic Micro-Pines of Magnetica-Fe[J].Angewandte Chemie International Edition,2005,44:2. |
| [13] | Kuang D B;Xu A W;Fang Y P et al.Surfactant-Assisted Growth of Novel PbS Dendritic Nanostructures via Facile Hydrothermal Process[J].Adver Mater,2003,15:1747. |
| [14] | Best E;RauBendorf U T;Wagner J;Kirschstein G.Gmelin.Handbook of Inorganic Chemistry[M].Berlin;New York:Springer-Verlag,1982:22-23. |
| [15] | Murphy C J .Materials Science:Nanocubes and Nanoboxes[J].Science,2002,298:2139. |
| [16] | Chen Q W;Zhu D L;Zhu C et al.A Way to Obtain Visible Blue Light Emission in Porous Silicon[J].Applied Physics Letters,2003,82:1018. |
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