CAREER: III-nitrides Nanowire Superlattice for Nanoscale Laser Diodes

职业：用于纳米级激光二极管的 III 族氮化物纳米线超晶格

• 批准号: 0847786
• 负责人: Yat Li
• 金额: $ 40万
• 依托单位: University of California-Santa Cruz
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-07-15 至 2014-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0847786&HistoricalAwards=false
• 关键词: CAREER; III; nitrides; Nanowire; Superlattice

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5).TECHNICAL SUMMARY:The primary objectives of this CAREER project are to understand the interplay of nanostructure design and material properties, and use a combined experimental and modeling approach to define fundamental issues of semiconductor nanowire optical structures with the goal of demonstrating free-standing nanowire injection lasers. The project is comprised of the following interrelated subprograms: 1) Synthesis and modeling of nanowire laser structures. III-nitrides axial modulated nanowire structures, with multiple-quantum-dots (MQDs) as active medium and distributed Bragg reflector (DBR) as an optical feedback configuration, will be synthesized. Three-dimensional modeling will be performed to predict the properties of nanowire gain medium and optical cavity as a function of wire size, morphology, DBR and MQWs design. 2) Development of an optimized nanowire laser structure via systematic optical characterization and modeling, and experimental demonstration of an optically pumped nanowire laser. Lasing threshold and its dependence on nanowire structure will be studied. 3) Investigation of nanowire electronic properties and development new scheme for carrier injection. 4) Development of a free-standing injection nanowire laser. The modulation of lasing threshold and emission wavelength will be studied. NON-TECHNICAL SUMMARY:The project is transformative research that addresses fundamental research issues in electronic/photonic materials science having technological relevance. The project is expected to advance the understanding of the interplay between nanostructure design and fundamental properties, and opens up substantial opportunities in optoelectronic devices, which could impact extensively the technology of electronics, photonics and energy conversion. The project is multidisciplinary, which not only provides comprehensive research training for students, but also promotes strong cross-department/institution and international collaboration. The project also enhances the integration of research and educational activities. The PI plans to develop new lectures, seminar and laboratory courses by incorporating nanoscience research. Outreach visits to industrial materials research labs and organizing public and industry participation in the education program is an important part of the planned activities. In addition, the PI plans to promote independent undergraduate research in UCSC to recruit and train future young scientists, in particular underrepresented students and students from non-Ph.D. granting institution and community college.

该奖项是根据2009年的《美国恢复和再投资法》（公法111-5）进行的。技术摘要：该职业项目的主要目标是了解纳米结构设计和材料属性的相互作用，并使用实验和建模的合并实验和建模方法来定义nanowire nannowiror Iniment of nonan nonan nonan free-tree-to nan nor的基本问题。该项目由以下相互关联的子程序组成：1）纳米线激光结构的合成和建模。 III-二硝酸盐轴向调制纳米线结构，将合成多量器点（MQD）作为活性培养基和分布式bragg反射器（DBR）作为光学反馈配置。将执行三维建模，以预测纳米线增益培养基和光腔的特性，这是电线大小，形态，DBR和MQWS设计的函数。 2）通过系统的光学表征和建模开发优化的纳米线激光结构，以及光学泵送的纳米线激光器的实验证明。将研究激光阈值及其对纳米线结构的依赖。 3）研究纳米线电子性质和开发载体注入的新方案。 4）开发独立注射纳米线激光器。将研究激光阈值和发射波长的调节。非技术摘要：该项目是变革性研究，该研究解决了具有技术相关性的电子/光子材料科学领域的基本研究问题。预计该项目将提高人们对纳米结构设计与基本属性之间相互作用的理解，并为光电设备打开了大量机会，这可能会对电子，光子学和能量转换的技术产生广泛影响。该项目是多学科的，不仅为学生提供全面的研究培训，而且还促进了强大的跨部门/机构和国际合作。该项目还增强了研究和教育活动的整合。 PI计划通过纳入纳米科学研究来开发新的讲座，研讨会和实验室课程。对工业材料研究实验室的外展访问，并组织公共和行业参与教育计划是计划活动的重要组成部分。此外，PI计划在UCSC促进独立的本科研究，以招募和培训未来的年轻科学家，特别是来自非PH.D的代表性不足的学生和学生。授予机构和社区学院。