选取大π共轭体系4-(4-甲氧基苯亚甲基)-2-苯基-5(4H)-噁唑酮作为研究对象,采用再沉淀法制备其纳米晶体,通过研究溶剂、温度、搅拌速度、搅拌时间等因素对所形成的纳米粒子的形貌尺寸的影响,成功制备出了形貌较单一的纳米棒和纳米带结构并进一步考察了它们的紫外吸收和发射光谱,结果表明随着纳米粒子尺寸的增加,其吸收光谱和荧光光谱均出现红移,荧光量子效率随着粒子尺寸的增大略有增大.
参考文献
| [1] | Ball P;Garwin L .Science at the atomic scale[J].Nature,1992,355:761-766. |
| [2] | Goldstein A N;Echer C M;Alivisatos A P .Melting in semiconductor nanocrystals[J].Science,1992,256:1425-1427. |
| [3] | Reed M A;Frensley W R;Matyi R J et al.Realization of a three-terminal resonant tunneling device:The bipolar quantum resonant tunneling transistor[J].Applied Physics Letters,1989,54:1034-1036. |
| [4] | Corma A .From microporous to mesoporous molecular sieve materials and their use in catalysis[J].Chemical Reviews,1997,97:2373-2419. |
| [5] | Chan,WC;Nie,S .Quantum dot bioconjugates for ultrasensitive nonisotopic detection (see comments)[J].Science,1998(5385):2016-2018. |
| [6] | Cangel Pui-yee Chan;Yvonne Bruemmel;Matthias Seydack;King-keung Sin;Ling-wai Wong;Elaine Merisko-Liversidge;Dieter Trau;Reinhard Renneberg .Nanocrystal Biolabels with Releasable Fluorophores for Immunoassays[J].Analytical chemistry,2004(13):3638-3645. |
| [7] | Parala H.;Kolbe M.;Wohlfart A.;Fischer RA.;Schmechel R. von Seggern H.;Winkler H. .Confinement of CdSe nanoparticles inside MCM-41[J].Advanced Materials,2000(14):1050-1055. |
| [8] | Mueller AH;Petruska MA;Achermann M;Werder DJ;Akhadov EA;Koleske DD;Hoffbauer MA;Klimov VI .Multicolor light-emitting diodes based on semiconductor nanocrystals encapsulated in GaN charge injection layers[J].Nano letters,2005(6):1039-1044. |
| [9] | Fan H;Lu Y;Stump A et al.Rapid prototyping of patterned functional nanostructures[J].Nature,2000,405:56-60. |
| [10] | Ghosh S;Sood A K;Kumar N .Carbon nanotube flow sensors[J].Science,2003,299:1042-1044. |
| [11] | Service R F .Nanocrystals may give boost to data storage[J].Science,2000,287:1902-1903. |
| [12] | Asahi T;Sugiyama T;Masahara H .Laser fabrication of spectroscopy of organic nanoparticles[J].Accounts of Chemical Research,2008,41:1790-1798. |
| [13] | Balakrishnan K;Datar A;Oitker R et al.Nanobelt self-assembly from an organic n-type semiconductor:propxylethyl-PTCDI[J].Journal of the American Chemical Society,2005,127:10496-10497. |
| [14] | Thuc-Quyen Nguyen;Richard Martel;Phaedon Avouris;Mark L. Bushey;Louis Brus;Colin Nuckolls .Molecular Interactions in One-Dimensional Organic Nanostructures[J].Journal of the American Chemical Society,2004(16):5234-5242. |
| [15] | Zhang X;Zou K et al.Single-crystal nanoribbons,nanotubes,and nanowires from intramolecular charge-tranfer organic molecules[J].Journal of the American Chemical Society,2007,129:3527-3532. |
| [16] | Nalwa H S;Kasai H;Okada S et al.Fabrication of organic nanocrystals for electronics and photonics[J].Advanced Materials,1993,5:758-760. |
| [17] | Kitazawa M;Higuchi R;Takasashi M et al.Novel molecular design for second-harmonic generation:azlactone derivatives[J].Journal of Physical Chemistry,1995,99:14784-14792. |
| [18] | Ujiiye-Ishii K;Kwon E;Kasai H;Nakanishi H;Oikawa H .Methodological features of the emulsion and reprecipitation methods for organic nanocrystal fabrication[J].Crystal growth & design,2008(2):369-371. |
| [19] | Bassi D A;Deulofeu V;Ortega F A F .Spectra of szlactones.I azlactones derived from substituted benzaldehydes and hippuric and nitrohippuric acids[J].Journal of the American Chemical Society,1953,75:171-178. |
| [20] | Horn D;Rieger J .Organic nanoparticles in the aqueous phase - theory, experiment, and use [Review][J].Angewandte Chemie International Edition,2001(23):4331-4361. |
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