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.

智力优点乔治亚理工学院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着提高白光发射器的性能。该方法将通过使用 1) 佐治亚理工学院独家提供的晶格匹配和应变补偿生长技术来展示改进的生长技术，2) 晶格匹配的紫外线发射器结构，从而减少非辐射复合，3) 通过自荧光基板发射白光材料。 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。 这项研究的最终产品应该会产生一种白光发射器，它消除了传统的磷光体方法以及与此类磷光体的需求相关的相关成本、复杂性和产量下降。使用 III 族氮化物材料在自发光基板上生长晶格匹配的 UV 发射器。 固态紫外线发射器用于泵浦自荧光基板，将紫外线转换为宽白光发射。 更广泛的影响：这项拟议工作的更广泛影响包括以暑期实习参与的形式接触少数族裔、通过“收养学校”计划对高中生和初中生进行教育/激励、更好地整合本科生研究项目以及传统上处于不利地位的佐治亚州农村外展计划。 鉴于本文提出的几种设备的新颖性，预计将形成新公司，从而提供经济效益。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给科学、工程、经济和教育领域留下持久的印象。