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

0824311龚南光，旧自治领大学BRIGE：三波长白色光发射器使用氮化物/氧化物异质结构智力优点：本研究的目的是开发白色发光二极管的高光输出功率，优良的散热能力，超亮度和长寿命。新的概念是集成光学有前途的半导体材料，III-氮化物和ZnO。建议的办法是：（1）使氮化物/ZnO异质结构的非常有效的光学性质功能化以发射三种颜色，包括蓝色、绿色和红色发射;（2）使用纳米结构化的ZnO用于增强的外部光提取;（3）使用高度导电的n型ZnO衬底用于垂直设计，其允许在较大芯片尺寸下用于超亮度发射的高注入电流。本研究将开发具有III族氮化物和ZnO的集成器件，以创造新水平的高效率白色LED。本研究涉及先进的生长技术，包括异质界面层的动态控制，缺陷，增强p型GaN的空穴浓度，以及纳米结构ZnO的发光效率的研究。预期的推力是新的白色发射器，承诺非常便宜，可靠，高效率的LED。更广泛的影响：成功的设备将产生巨大的节能源，取代目前的荧光灯为基础的一般照明光源。这项研究需要深入了解ZnO和III族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积极参与材料表征，生长，器件模拟和工程界科学活动的机会。此外，将通过本科生“高年级研究项目”稳步实施少数民族和妇女的教育战略，在这些项目中，由包括少数民族和女生在内的各种高年级学生组成的小组将接触到有趣的研究领域。主要研究者将作为“导师和顾问”参与本项目，并将提高他们对科学和工程主题的兴趣，让他们在继续的学术领域或工业工程和科学领域继续他们的职业生涯

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