Acquisition of a Low Temperature Fourier Transform Infrared Photoluminescence Instrumentation

低温傅里叶变换红外光致发光仪器的获得

• 批准号: 9977545
• 负责人: Al-Sameen Khan
• 金额: $ 13.21万
• 依托单位: Delaware State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-09-01 至 2001-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9977545&HistoricalAwards=false
• 关键词: Acquisition; Low; Temperature; Fourier; Transform

9977545KhanThe Major Research Instrumentation program will provide funds for the acquisition of equipment to establish a Fourier transform infrared (FT-IR) variable temperature (1.5K-300K) photoluminescence (PL) laboratory. Fourier transform photoluminescence spectroscopy (FTPLS) will be used to study the optical properties of SiGeSnC group IV bulk alloys, heterostructures, quantum confined structures, and devices. FTPLS will be utilized to study the bandgaps of the alloys, variation of the bandgap due to the concentration of alloy constituents and strain, defects and impurities, and optical processes in group IV materials and devices. This will enhance basis understanding and address specific unresolved issues about the variation of the bandgap due to alloying and strain, that is crucial in the design of devices that utilize bandgap engineering to create quantum confined structures. The FT-IR spectrometer component of the FTPLS system will be used to examine the vibrational structure of the material as well as the bandgap. The instrumentation will be used for research, research training, and integrated research/education activities. Graduate students will utilize the instrumentation for research towards their master's degree in the physics graduate program. They also will be used as mentors for undergraduate research training. Also, the instrumentation will be used to engage undergraduates in small research projects during the academic year and summer months, and for integrated research/education in courses that are presently offered in the junior and senior years of the undergraduate programs in physics, and physics with engineering emphasis. Experiments utilizing the equipment will be integrated in the laboratory sections of undergraduate courses offered in the Department of Physics and Pre-Engineering. Major Research Instrumentation funds will be used to acquire Fourier transform photoluminescence spectroscopy instrumentation that will be used to study a variety of optical and vibrational properties of semiconducting alloys, heterostructures, quantum confined structures, and devices. This instrument will have a large impact on the research infrastructure, as well on the research training at Delaware State University, which is a minority institution.

9977545 Khan主要研究仪器计划将为购买设备提供资金，以建立傅立叶变换红外(FT-IR)变温(1.5K-300K)光致发光(PL)实验室。傅立叶变换光致发光光谱将用于研究SiGeSnC第四族块体合金的光学性质、异质结构、量子限制结构和器件。FTPLS将被用来研究合金的带隙，由于合金成分和应变的浓度而引起的带隙变化，缺陷和杂质，以及第四类材料和器件的光学过程。这将增强对基础的理解，并解决由于合金和应变而导致的带隙变化的具体悬而未决的问题，这在利用带隙工程创建量子受限结构的器件设计中至关重要。FTPLS系统的FT-IR光谱仪组件将被用来检查材料的振动结构以及带隙。该仪器将用于研究、研究培训和综合研究/教育活动。研究生将利用这些仪器进行研究，以攻读物理学研究生课程的硕士学位。他们还将被用作本科生研究培训的导师。此外，该仪器将用于在学年和夏季月份让本科生参与小型研究项目，并用于目前在物理本科课程的初三和高年级提供的课程的综合研究/教育，以及以工程为重点的物理。使用这些设备的实验将被整合到物理系和工程预科本科课程的实验室部分。主要的研究仪器资金将用于购买傅里叶变换光致发光光谱仪器，用于研究半导体合金、异质结构、量子限制结构和器件的各种光学和振动性质。这一工具将对研究基础设施以及特拉华州立大学的研究培训产生重大影响，特拉华州立大学是少数族裔机构。