Bandgap and Composition Engineering of Semiconductor Nanocrystal

这个无机、生物无机和有机金属化学项目的奖项支持阿肯色大学彭小刚教授的研究，他开发了利用连续离子层吸附和反应（SILAR）或溶液原子层外延（SALE）技术在溶液中制造复杂半导体纳米晶体的方法。要合成的一类复杂纳米晶体将在单个纳米晶体中具有多个量子系统，并且量子系统可以选择彼此隔离，光学耦合或电子和自旋耦合。第二种类型的复杂纳米晶体将在给定的径向位置包含掺杂剂。这些纳米结构将为开发光电子器件、自旋电子器件、生物医学标记、光催化剂、光致变色材料等技术应用提供新的和独特的系统。这些纳米晶体也将有助于对具有可调空间和能量分离的量子系统相互作用的基本理解。这项研究开发了新的、更便宜的、更环保的制造纳米材料的方法。学生将学习这些纳米材料的化学、设计和制造。PI参与协助工业科学家将纳米晶体和相关产品商业化。

This award in the Inorganic, Bioinorganic and Organometallic Chemistry program supports research by Professor Xiaogang Peng at the University of Arkansas to develop methodologies for the fabrication of complex semiconductor nanocrystals in solution by using successive ionic layer adsorption and reaction (SILAR) or solution atomic layer epitaxy (SALE) techniques. One type of complex nanocrystals to be synthesized will have multiple quantum systems in a single nanocrystal and the quantum systems can be chosen to be either isolated from each other, optically coupled, or electronically and spintronically coupled. The second type of complex nanocrystals will contain dopants at given radial positions. These nanostructures will provide new and unique systems for developing technical applications in optoelectronic devices, spintronic devices, bio-medical labeling, photocatalysts, optochromic materials, etc. These nanocrystals will also aid the fundamental understanding of the interactions of quantum systems with tunable spatial and energy separation. This research develops new, less expensive and more environmentally sound methods for fabricating nanomaterials. Students will be trained in the chemistry, design and fabrication of these nanomaterials. The PI is involved in assisting industrial scientists to commercialize nanocrystals and related products.