SBIR Phase I: Industrial Scale Formation of the Stable and Processable Core/Shell Semiconductor Nanocrystals

这个小企业创新研究（SBIR）第一阶段项目将开发一种新技术，用于工业生产高质量的核/壳半导体纳米晶体，这种纳米晶体在各种电子、生物和医疗应用中显示出巨大的潜力。目前，所有这些商业应用都受到稳定、高质量、价格合理的大规模核/壳半导体纳米晶体的限制。与现有的有机金属方法不同，该项目建立在由NNL和阿肯色大学开发的更环保，廉价和高性能的溶液原子层外延（SALE）合成策略之上。SALE通过在溶液中逐层交替在核心纳米晶体表面生长阳离子和阴离子壳材料，使核/壳半导体纳米晶体的规模化和高质量成为可能。这种生产核/壳纳米晶体的新合成方案应扩展到连续批（CB）方法，以最大限度地提高现有合成方案的功率。核/壳纳米晶体可以通过树突配体和进一步交联来稳定。这样，得到的核/壳纳米晶体的质量和数量都得到了保证。该技术的商业应用和其他好处在于，其核/壳胶体半导体纳米晶体在电子和医疗领域的应用价值在于大面积显示、便携式电子设备、医疗器械和医疗诊断等。生产这些电子设备和医疗诊断的数十亿美元的市场正在迅速发展

This Small Business Innovation Research (SBIR) Phase I project will develop a new technology for the industrial production of high quality core/shell semiconductor nanocrystals, which have shown great potential for a variety of electronic, biological and medical applications. At present, all of these commercial applications are constrained by the availability of stable, high quality core/shell semiconductor nanocrystals on a large scale with an affordable price. Different from the existing organometallic approach, this project is built up on the greener, inexpensive and high performance Solution Atomic Layer Epitaxial (SALE) synthetic strategies developed by the NNL and the University of Arkansas. The SALE makes possible the scale-up and the high quality of the core/shell semiconductor nanocrystals by growing cationic and anionic ion shell materials on the core nanocrystals surface in the solution layer by layer alternatively. This new synthesis scheme for producing the core/shell nanocrystals should be extendable to the continue batch (CB) method that maximizes the power of the existing synthetic schemes. The core/shell nanocrystals could be stabilized by dendron ligands and further crosslinking. In this way, both the quality and the quantity of the resulting core/shell nanocrystals are guaranteed. The commercial applications and other benefits of this technology is in the value of the core/shell colloidal semiconductor nanocrystals in the field of electronic and medical applications lies on the large area display, portable electronic devices, medical devices and medical diagnostics, etc. A multi-billion dollar market for the production of those electronic devices and medical diagnostics is in rapid development