State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, PR China.
Phys Chem Chem Phys. 2010 Jan 14;12(2):332-6. doi: 10.1039/b919655b. Epub 2009 Nov 7.
In the conventional procedure of the preparation of aqueous semiconductor nanocrystals (NCs), the growth of NCs was mainly through the thermodynamics-favored Ostwald ripening process. It required additional energy to promote NC growth, such as reflux, hydrothermal method, microwave irradiation, and sonochemical synthesis. Energy-promoted growth usually led to the decomposition of mercapto-ligands and therewith decreased the quality of NCs. Consequently, in this study, the growth of aqueous semiconductor NCs was designed through an amine-promoted kinetic process, which efficiently shortened the growth duration and avoided the decomposition of ligands, thus providing a universal method for preparing various aqueous binary and ternary NCs.
在传统的制备水性半导体纳米晶体（NCs）的方法中，NCs 的生长主要通过热力学有利的奥斯特瓦尔德熟化过程进行。需要额外的能量来促进 NC 的生长，例如回流、水热法、微波辐射和超声化学合成。能量促进的生长通常会导致巯基配体的分解，从而降低 NC 的质量。因此，在本研究中，通过胺促进的动力学过程设计了水性半导体 NCs 的生长，有效地缩短了生长时间并避免了配体的分解，从而为制备各种水性二元和三元 NCs 提供了一种通用方法。
