文章基本信息

标题：Synthesis of nanoparticles using pulsed laser deposition.
作者：Marsh, Daniel
期刊名称：Transactions of the Missouri Academy of Science
印刷版ISSN：0544-540X
出版年度：2005
期号：January
语种：English
出版社：Missouri Academy of Science
摘要：SYNTHESIS OF NANOPARTICLES USING PULSED LASER DEPOSITION: Nanomaterials are low-dimensional material systems whose size is intermediate between that of atoms or molecules and that of bulk solids. These novel materials have different physical and chemical properties from those of the bulk parent compounds and also from those of the constituent atoms and molecules. The properties strongly depend on size and shape of the particles. These properties are controlled by quantum size effects, altered thermodynamics and modified chemical reactivity. Wide varieties of physical or chemical properties available in nanomaterials are useful for many applications including electronic-, magnetic-, optical-, and bio-sensors. Currently we are doing research on the growth, characterization, and exploitation of electronic and magnetic materials at the nanoscale-the scale of individual atoms. We are attempting to grow various nanoparticles in thin film forms using Pulsed Laser Deposition technique. This method uses bursts from a powerful 248nm laser to ablate a target. After successfully growing the nanoparticles we test them with an Atomic Force Microscope, Scanning Electron Microscope, X-Ray Diffraction and Raman Spectroscopy. Finally, we measure electrical, magnetic and optical properties using our various existing techniques.
关键词：Laser beams;Nanoparticles

Synthesis of nanoparticles using pulsed laser deposition.

Marsh, Daniel

SYNTHESIS OF NANOPARTICLES USING PULSED LASER DEPOSITION: Nanomaterials are low-dimensional material systems whose size is intermediate between that of atoms or molecules and that of bulk solids. These novel materials have different physical and chemical properties from those of the bulk parent compounds and also from those of the constituent atoms and molecules. The properties strongly depend on size and shape of the particles. These properties are controlled by quantum size effects, altered thermodynamics and modified chemical reactivity. Wide varieties of physical or chemical properties available in nanomaterials are useful for many applications including electronic-, magnetic-, optical-, and bio-sensors. Currently we are doing research on the growth, characterization, and exploitation of electronic and magnetic materials at the nanoscale-the scale of individual atoms. We are attempting to grow various nanoparticles in thin film forms using Pulsed Laser Deposition technique. This method uses bursts from a powerful 248nm laser to ablate a target. After successfully growing the nanoparticles we test them with an Atomic Force Microscope, Scanning Electron Microscope, X-Ray Diffraction and Raman Spectroscopy. Finally, we measure electrical, magnetic and optical properties using our various existing techniques.

* Vera, C., K. Paul, T. Kehl, B. Robertson, G. Mudanda and K. Ghosh. Department of Physics, Astronomy and Materials Science, Southwest Missouri State University.