Preparation of functional group 14 nanomaterials via thermolysis of sol-gel derived precursors

通过溶胶-凝胶衍生前体热解制备官能团 14 纳米材料

• 批准号: 261508-2010
• 负责人: Veinot, Jonathan
• 金额: $ 6.56万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=514589
• 关键词: Preparation; functional; group; 14; nanomaterials

Semiconductor nanocrystals (NCs) are unique materials that exhibit size dependent optical, electronic, and chemical properties. The chemistry and photophysics of prototypical CdSe NCs are well developed and largely understood. Consequently, these materials show promise as active systems in many applications. Despite favourable properties, toxic Cd ions, known to leach from these materials, pose a tremendous barrier to their integration into consumer products. In response, there is a push for "Cadmium-Free Quantum Dot" research programs. Group 14 NCs (e.g., Si, Ge, SiGe, SiC, etc.) are attractive alternatives in part because of their tunable optical and chemical properties, stability and bioinert nature. Already, pSivida Corporation has FDA approved Si-NC based drug delivery systems, IBM has incorporated Si-NCs into non-volatile memory devices, and there is significant Canadian investment in employing Si-NCs as active materials in alternative lighting. It has been suggested that devices based upon "nanosilicon" could lead to revenues as high as $2.1 billion US in 2016 - this neglects the promise of other Group 14 NCs that should exhibit improved device metrics.

半导体纳米晶体 (NC) 是一种独特的材料，具有与尺寸相关的光学、电子和化学特性。 原型 CdSe NC 的化学和光物理学已经得到很好的发展并且得到了广泛的了解。 因此，这些材料在许多应用中显示出作为活性系统的前景。尽管具有良好的特性，但有毒的镉离子（已知会从这些材料中浸出）对它们融入消费产品构成了巨大的障碍。作为回应，人们正在推动“无镉量子点”研究计划。第 14 族 NC（例如 Si、Ge、SiGe、SiC 等）是有吸引力的替代品，部分原因在于其可调节的光学和化学特性、稳定性和生物惰性。 pSivida 公司已经拥有 FDA 批准的基于 Si-NC 的药物输送系统，IBM 已将 Si-NC 纳入非易失性存储设备，并且加拿大在使用 Si-NC 作为替代照明的活性材料方面进行了大量投资。 有人建议，基于“纳米硅”的设备可能在 2016 年带来高达 21 亿美元的收入 - 这忽略了其他第 14 组 NC 应该表现出改进的设备指标的承诺。