BRIGE:Triple-Wavelength White Light Emitters using Nitride/Oxide Heterostructure

BRIGE：使用氮化物/氧化物异质结构的三波长白光发射器

• 批准号: 0824311
• 负责人: Gon Namkoong
• 金额: $ 17万
• 依托单位: Old Dominion University Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2008
• 资助国家: 美国
• 起止时间: 2008-08-01 至 2011-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0824311&HistoricalAwards=false
• 关键词: BRIGE; Triple; Wavelength; White; Light

0824311Gon Namkoong, Old Dominion UniversityBRIGE: Triple-Wavelength White Light Emitters using Nitride/Oxide HeterostructureIntellectual Merit: The objective of this research is to develop white light emitting diodes for high light output power, excellent heat dissipation capabilities, super-brightness and long lifespan. Novel concepts are to integrate optically promising semiconductor materials, III-nitrides and ZnO. The proposed approaches are: (1) to functionalize the very effective optical properties of nitride/ZnO heterostructure to emit triple colors, including blue, green, and red emissions; (2) to use nanostructured ZnO for enhanced external light extraction; (3) to use highly conductive n-type ZnO substrates for vertical design which allows for the high injection currents for super-brightness emission at larger chip sizes. The proposed research will develop the integrated devices with III-nitrides and ZnO to create new level of high efficiency white LEDs. This research involves the advanced growth technologies, including dynamic control of hetero-interface layer, defects, enhanced hole concentrations of p-type GaN, and the investigation of luminescence efficiency of nanostructured ZnO. The expected thrusts are the novel white emitters which promise very cheap, reliable, and high efficiency LEDs. Broader Impacts: The successful devices will produce huge energy-saving sources by replacing current fluorescent-based general lighting sources. This research requires the understanding of intensive characterizations of heterojunction system of ZnO and III-nitrides. Thus, the research program provides an opportunity for undergraduate and graduate students actively to involve material characterization, growth, device simulation, and scientific activities in the engineering communities. Furthermore, the educational strategies for minorities and women will be steadily conducted through undergraduate "senior research projects" where a small group composed of diverse senior students, including minorities and female students, will be exposed to interesting research fields. The principal investigator will participate in this project as "Mentor and Advisor" and will raise their interest in scientific and engineering topics and let them continue their careers in continued academic fields or in the industrial engineering and scientific fields

0824311 Gon Namkoong，旧领土大学BRIGE：使用氮化物/氧化物异质结构的三波长白光发射器智能优点：本研究的目标是开发高输出功率、出色的散热能力、超高亮度和长寿命的白色发光二极管。新的概念是集成光学前景光明的半导体材料、III-氮化物和氧化锌。建议的方法是：(1)功能化氮化物/氧化锌异质结非常有效的光学性质，以发射包括蓝、绿、红三种颜色的发光；(2)使用纳米结构的氧化锌来增强外部光提取；(3)使用高导电性的n型氧化锌衬底进行垂直设计，以允许在更大芯片尺寸下的超亮度发射的高注入电流。拟议的研究将开发与III-氮化物和氧化锌集成的器件，以创造新水平的高效白光LED。这项研究涉及到先进的生长技术，包括异质界面层、缺陷的动态控制、p型GaN空穴浓度的提高以及纳米结构氧化锌发光效率的研究。预计的推力是新颖的白色发射器，它承诺非常便宜、可靠和高效率的LED。更广泛的影响：成功的设备将通过取代目前以荧光灯为基础的普通光源来产生巨大的节能来源。这项研究需要深入了解氧化锌和III-氮化物异质结系统的特性。因此，该研究计划为本科生和研究生提供了一个机会，让他们积极参与工程社区的材料表征、生长、器件模拟和科学活动。此外，针对少数群体和妇女的教育战略将通过本科生“高级研究项目”稳步实施，在这些项目中，包括少数群体和女性学生在内的不同高年级学生组成的小组将接触到有趣的研究领域。首席研究员将以导师和顾问的身份参与这个项目，并将提高他们对科学和工程主题的兴趣，并让他们在继续学术领域或工业工程和科学领域继续他们的职业生涯。