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2003
MRS Fall Meeting MRS Symposium N: Quantum Dots, Nanoparticles, and Nanowires Nanoscale structures made of semiconductors and metals, such as semiconductor nanocrystals (Quantum Dots: QDs), metallic nanoparticles, and nanowires show unique properties that arise when the bulk materials are reduced in two or all three dimensions to a size range of ~ 1 to 100 nm. QDs, for example, show unique size-dependent properties when their dimensions become comparable to or smaller than the Bohr exciton radius due to quantum confinement of the charge carriers. Gold or silver nanoshells and nanorods exhibit size- and shape-dependent plasmon resonant properties. The above nanostructures offer the perspective of manipulating the materials properties with a flexibility that matches that of molecular chemical synthesis, but with the control that bulk materials afford. This has motivated much research aimed at designing and characterizing new materials, understanding the physics of these systems, deriving novel properties and designing novel devices, which has led to a number of recent advances in the fabrication, processing, and application of these systems. Some of the recent developments included preparation of colloidal anisotropic nanostructures, quantum dots and plasmon resonant nanoparticles coupled to optical microcavities. There has also been a growing interest in the conjugation of colloidal QDs and metallic nanoparticles with biological molecules. QD-bioconjugates have been used in a variety of assays and in biological imaging applications. The potential applications of these systems in chemistry, physics, and biotechnology are significant. The
objective of this symposium is to bring together a group of scientists
active in the emerging field of nanotechnology with a focus on semiconductor
and metallic (inorganic) nanoparticles, nanowires, and other "nanoscale
objects" to discuss the most recent development in the synthesis
of novel materials, characterization of their optical and electrical properties,
and physical understanding of these systems, and to explore novel applications. ·
Synthesis and characterization of nanoparticles and nanowires using wet
chemistry and molecular beam approaches One or two joint sessions are anticipated with Symposium Z: Progress in Compound Semiconductor Materials III-Electronic and Optoelectronic Applications. A tutorial complementing this symposium is tentatively planned. Further information will be included in the program that will be available in September. Invited speakers include: M.G. Bawendi (Massachusetts Inst. of Technology), L.E. Brus (Columbia University), C. Delerue (CNRS-Lille, France), S. Gaponenko (Academy of Sciences of Belarus), M. Graetzel (Lausanne, Switzerland), F. Henneberger (Humboldt Univ. Berlin, Germany), B.A. Korgel (Univ. of Texas-Austin), C.J. Murphy (Univ. of South Carolina), L. Samuelson (Lund Univ., Sweden), S.M. Simon (Rockefeller Univ.), D. Vanmaekelbergh (Univ. Utrecht, The Netherlands), H. Weller (Univ. Hamburg, Germany), and Y. Xia (Univ. of Washington). Additional invited speakers will be selected from the contributed abstracts. Symposium Organizers Philippe
Guyot-Sionnest Naomi
J. Halas Hedi
Mattoussi Zhong
Lin Wang Ulrike
Woggon
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