White Light Emitter using a Self-Luminescent, Lattice Matched Substrate

使用自发光晶格匹配基板的白光发射器

• 批准号: 0702521
• 负责人: William Doolittle
• 金额: $ 27万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2007
• 资助国家: 美国
• 起止时间: 2007-05-01 至 2011-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0702521&HistoricalAwards=false
• 关键词: White; Light; Emitter; using; Self

Intellectual MeritGeorgia Tech proposes to significantly advance the performance of white light emitters by demonstrating a totally new paradigm in optical emitter design, growth and fabrication. The approach will demonstrate improved growth technologies by using 1) lattice matched and strain compensated growth technologies exclusively available at Georgia Tech, 2) lattice matched UV emitter structures resulting in reduced non-radiative recombination, 3) white light emission via a self-fluorescing substrate material. This goal will be achieved via use of novel substrate that is lattice matched to AlGaN/AlInGaN/AlInN in the wavelength range of ~331 nm. The final product of this research should result in a white light emitter that eliminates the traditional phosphor approach along with the associated cost, complexity and decreased yield associated with the need for such phosphors. A lattice matched UV emitter is grown using III-Nitride materials on a self-luminescent substrate. The solid state UV emitter is used to pump the self-fluorescent substrate, which converts the UV light to a broad white light emission. Broader Impact: The broader impact of this proposed effort includes outreach to minorities in the form of summer internship participation, education/motivation of high school and junior high students thru the "adopt-a-school" program, better multidisciplinary integration of undergraduate research projects and a traditionally disadvantaged rural Georgia outreach program. Given the novelty of several of the devices proposed herein, new companies are expected to form, providing an economic benefit as well. The demonstrator devices proposed herein were selected for their importance to industry, impact on society, particularly their biological/medical diagnostic. The core technology proposed herein and resulting device applications will make a lasting impression on the scientific, engineering, economic and educational fields.

智力MeritGeorgia Tech提出通过展示光学发射器设计、生长和制造的全新范例来显著提高白色光发射器的性能。该方法将通过使用1）格鲁吉亚技术公司独家提供的晶格匹配和应变补偿生长技术，2）导致减少非辐射复合的晶格匹配UV发射器结构，3）通过自荧光衬底材料的白色光发射来证明改进的生长技术。 这一目标将通过使用在~331 nm波长范围内与AlGaN/AlInGaN/AlInN晶格匹配的新型衬底来实现。 本研究的最终产品应产生一种白色光发射器，其消除了传统的磷光体方法沿着的相关成本、复杂性和与对这种磷光体的需求相关的降低的产量。使用III族氮化物材料在自发光衬底上生长晶格匹配的UV发射器。 固态UV发射器用于泵浦自荧光衬底，其将UV光转换为宽白色光发射。 更广泛的影响：这一拟议努力的更广泛影响包括以参加暑期实习、通过“收养一所学校”方案教育/激励高中和初中学生、更好地整合本科生研究项目和传统上处于不利地位的格鲁吉亚农村外联方案的形式与少数群体开展外联活动。 鉴于本文提出的几种装置的新奇，预计将形成新的公司，从而也提供经济效益。选择本文提出的演示设备是因为它们对工业的重要性、对社会的影响，特别是它们的生物/医学诊断。本文提出的核心技术和由此产生的设备应用将在科学，工程，经济和教育领域留下持久的印象。