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Solution-liquid-solid Growth of Quantum Wires: Phase-separated vs. Homogeneous-alloy Structures

量子线的溶液-液-固生长：相分离与均质合金结构

基本信息

批准号：
0092735
负责人：
William Buhro
金额：
$ 28.5万
依托单位：
Washington University
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2001
资助国家：
美国
起止时间：
2001-04-15 至 2005-03-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0092735&HistoricalAwards=false
关键词：
Solution liquid solid Growth Quantum

项目摘要

This award to Washington University is a renewal of an earlier one, and is supported by the Advanced Materials and Processing Program in the Chemistry Division and the Solid State Chemistry Program in the Materials Research Division. In this project, William Buhro will develop refined solution-liquid-solid phase-separation methods to prepare nanowires and tubes from semiconductor alloys. Nanowires with controlled composition, narrow diameter and quantum confinement regions will be prepared from indium and gold-gallium eutectic alloys at low temperatures for potential applications in blue and green light emitting diodes. In addition, the project will study detailed mechanisms that affect light emission from the nanowires prepared from different semiconductor alloys.Under the award, nanowires and nanotubes with defined size, shape and composition will be prepared from semiconductor alloys for potential applications in high performance blue and green light emitting diodes and lasers. The broader impact of the project is the understanding of the formation of nanowires from semiconductor alloys to be fabricated at lower temperatures with enhanced electrooptic properties at reduced cost. In addition, the research program will provide a rich multidisciplinary education and training opportunity in materials chemistry to graduate and undergraduate students.

华盛顿大学的这一奖项是对先前奖项的延续，并得到了化学部门的先进材料和加工项目以及材料研究部门的固态化学项目的支持。在该项目中，William Buhro 将开发精细的溶液-液-固相分离方法，以用半导体合金制备纳米线和管。具有受控成分、窄直径和量子限制区域的纳米线将由铟和金镓共晶合金在低温下制备，用于蓝色和绿色发光二极管的潜在应用。此外，该项目还将研究影响由不同半导体合金制备的纳米线发光的详细机制。根据该奖项，将由半导体合金制备具有规定尺寸、形状和成分的纳米线和纳米管，用于高性能蓝色和绿色发光二极管和激光器的潜在应用。该项目更广泛的影响是了解半导体合金纳米线的形成，该纳米线可以在较低温度下制造，并以较低的成本增强电光性能。此外，该研究项目将为研究生和本科生提供丰富的材料化学多学科教育和培训机会。