Fabrication and Characterization of Micro- and Nano-structured Materials Systems

微米和纳米结构材料系统的制造和表征

• 批准号: RGPIN-2014-04664
• 负责人: Mascher, Peter
• 金额: $ 2.62万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=587943
• 关键词: Fabrication; Characterization; Micro; Nano; structured

This proposal is concerned with the fabrication and comprehensive characterization of complex materials structures, including - but not limited to - silicon-based systems for photonics applications. It is our aim to (a) contribute to a better understanding of the atomistic processes that determine properties that are critical to certain applications, (b) contribute to the optimization of materials and structures for photonic and - to a lesser extent - electronic applications, and (c) provide a strong and direct link between advanced materials science and state-of-the-art fabrication technology. The proposed research program builds on the demonstrated successes of current and previous research projects and will further intensify our work in silicon photonics and organic light emitting materials and devices. Silicon photonics is an internationally hotly pursued field, with potentially massive economic benefits. Over the past few years, we have demonstrated our ability to design and fabricate silicon-based materials systems that emit light via nano-crystals and/or -clusters and/or through rare-earth doping, leading to strong emission in the green, blue, and red, respectively. Most exciting form a practical perspective is the potential for tunability of the emission wavelength and/or the generation of white light. Even though these results are reproducible at the technological level, much better understanding of the underlying microphysics is still required. A similar case – albeit in a more narrowly defined application space - can be made in favour of continued development of novel organic materials architectures for blue and white OLEDs. Common to these materials systems is the complexity of their physical and chemical make-up and the tendency to incorporate impurities and/or defects, all of which determine the optical and electronic properties. We will place particular emphasis on synergistic use of complementary analytical tools to be able to link microscopic and/or structural features to optical and/or electronic properties of the investigated systems. One of the key facilities in that regard will be the McMaster Intense Positron Beam Facility (MIPBF), which was funded in the 2009 CFI competition and will be operational in late 2014. MIPBF includes one of the world’s most intense sources of positrons, which will supply two experimental stations equipped to perform positron lifetime and Doppler-broadening studies of open-volume defects in materials and positron-based surface characterization, respectively.The MIPBF will be unique in Canada, one of only a few operating worldwide, and will greatly add to the collaborative facilities already in existence at McMaster, such as the Canadian Centre for Electron Microscopy (CCEM), the Brockhouse Institute for Materials Research (BIMR), and the Centre for Emerging Device Technologies (CEDT). Off campus, we will continue to use the ion beam analytical facilities at Western University in London, ON and the unique facilities at the Canadian Light Source (CLS) synchrotron laboratory in Saskatoon, SK. In both research thrusts, the combination of wide-ranging fabrication capabilities with synchrotron-based X-ray studies, electron microscopy, positron annihilation spectroscopy, and optical characterization sets our work apart from many conventional studies of such systems. The proposed research program will provide ample opportunity for HQP to be trained in and work with state-of-the-art fabrication and characterization tools, in a multi-disciplinary and internationally collaborative environment. Such experience often is the differentiating factor when it comes to employment in academia, research institutes, or innovative companies.

本提案涉及复杂材料结构的制造和综合表征，包括但不限于用于光子学应用的硅基系统。我们的目标是(a)有助于更好地理解原子过程，这些过程决定了对某些应用至关重要的性质，(b)有助于优化光子和电子应用的材料和结构，(c)在先进材料科学和最先进的制造技术之间提供强大而直接的联系。