Sn-Containing Group-IV Semiconductors for Energy Applications in Photovoltaics and Thermoelectricity

用于光伏和热电能源应用的含锡 IV 族半导体

• 批准号: 0907600
• 负责人: Jose Menendez
• 金额: $ 88.44万
• 依托单位: Arizona State University
• 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: 2009-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0907600&HistoricalAwards=false
• 关键词: Sn; Containing; Group; IV; Semiconductors

0907600Menendez "This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5)." Technical. This Focused Research Group (FRG) project explores energy applications of group-IV (Si, Ge) semiconductor materials incorporating Sn. The combination of Sn with Si and Ge may allow desirable structural and electronic properties with advantageous opportunities in photovoltaics and thermoelectricity. Fundamental studies of the Si-Ge-Sn system are planned for the specific purposes: a) designing multijunction solar cells with fully optimized band gaps; b) exploring the potential of the Si-Ge-Sn system for intermediate band photovoltaics; c) designing materials with dramatically enhanced impact ionization rates; d) fabricating structures with ultra-low thermal conductivities; and e) engineering enhanced Seebeck coefficients. The size of the compositional space being explored, combined with possible nanostructural arrangements for a given composition, benefit from a multidisciplinary FRG approach. Theoretical simulations will be used to identify the most promising structures which will be synthesized using CVD methods introducing new precursors and modifications as required. Electrical and contactless optical characterization methods will be employed. Non-Technical. The project addresses fundamental research issues in a topical area of electronic/photonic materials science having energy related technological relevance. Additionally, the project will include several education/outreach efforts: hosting a regional workshop "Semiconductors and Society" for high school pre-seniors to (i) research student perceptions of how science and engineering innovations impact high-tech products relying on semiconductors (ii) elucidate how intellectual innovations can impact future manufacturing technologies to preserve the semiconductor sector as the major high-technology industry in Arizona and (iii) increase student interest in science and engineering and encourage the pursuit of advanced education in related technical fields. Also, new courses in materials and solid-state chemistry will be developed at ASU with integrated simulation and experimental components. These will be included in the undergraduate curriculum of a newly established "Science Master's in Nanoscience" program. Teaching modules and workshop materials will also be developed and disseminated through the project's web page.

0907600Menendez “该奖项由 2009 年美国复苏和再投资法案（公法 111-5）资助。” 技术的。该重点研究小组 (FRG) 项目探索包含 Sn 的 IV 族（Si、Ge）半导体材料的能源应用。 Sn与Si和Ge的组合可以实现理想的结构和电子特性，并在光伏和热电领域具有有利的机会。 Si-Ge-Sn 系统的基础研究计划用于特定目的： a) 设计具有完全优化带隙的多结太阳能电池； b) 探索Si-Ge-Sn系统在中波段光伏发电中的潜力； c) 设计具有显着提高的碰撞电离率的材料； d) 制造超低导热系数的结构； e) 设计增强的塞贝克系数。正在探索的成分空间的大小，与给定成分可能的纳米结构排列相结合，受益于多学科 FRG 方法。理论模拟将用于确定最有前途的结构，这些结构将使用 CVD 方法合成，并根据需要引入新的前体和修饰。将采用电学和非接触式光学表征方法。非技术性。该项目解决具有能源相关技术相关性的电子/光子材料科学主题领域的基础研究问题。此外，该项目还将包括多项教育/推广工作：为高中生举办“半导体与社会”区域研讨会，以（i）研究学生对科学和工程创新如何影响依赖半导体的高科技产品的看法（ii） ）阐明智力创新如何影响未来的制造技术，以保持半导体行业作为亚利桑那州主要高科技产业的地位，以及（iii）提高学生对科学和工程的兴趣，并鼓励追求相关技术领域的高等教育。此外，亚利桑那州立大学还将开发材料和固态化学方面的新课程，其中包含集成的模拟和实验组件。这些将被纳入新设立的“纳米科学理学硕士”项目的本科课程中。教学模块和研讨会材料也将通过该项目的网页进行开发和传播。