RIMI: Growth and Characterization of Photorefractive II-VI Ternary Semiconductor Crystals

RIMI：光折变 II-VI 三元半导体晶体的生长和表征

• 批准号: 9550605
• 负责人: Steven Morgan
• 金额: $ 38.47万
• 依托单位: Fisk University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-06-01 至 1999-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9550605&HistoricalAwards=false
• 关键词: RIMI; Growth; Characterization; Photorefractive; II

9550605 Morgan The proposed research would investigate the optical and electronic properties of 2-6 semiconductors and the relationship of these properties to the photorefractive response. Specific objectives of this project are (1) to determine the effect of purification, crystal growth techniques and post-growth treatments on trap density, carrier transport properties, absorption coefficient and other properties relevant to the material's photorefractive performance, (2) to use selected transition metals as dopants in order to evaluate the relationship between dopant species and concentration, defect and transport properties and photorefractive properties, (3) to measure the time response of the photorefractive effect and its dependence on defect properties and (4) to study the effectiveness of studying the bandgap and other properties by alloying in order to optimize the material for use at a specific wavelength. The project will support 4 undergraduate and 2 graduate students. ***

9550605摩根拟议的研究将调查2-6半导体的光学和电子特性以及这些特性与光折变响应的关系。 该项目的具体目标是：（1）确定提纯、晶体生长技术和生长后处理对陷阱密度、载流子输运性质、吸收系数和与材料的光折变性能相关的其他性质的影响，（2）使用选定的过渡金属作为掺杂剂，以评估掺杂剂种类和浓度之间的关系，缺陷和输运性质以及光折射性质，（3）测量光折射效应的时间响应及其对缺陷性质的依赖性，以及（4）研究通过合金化来研究带隙和其它性质的有效性，以便优化用于特定波长的材料。 该项目将支持4名本科生和2名研究生。 ***