Nano-Mechanics Division, Korea Institute of Machinery &Materials, Daejeon, Korea.
Nanotechnology. 2012 Feb 17;23(6):065602. doi: 10.1088/0957-4484/23/6/065602.
We report successive and large-scale synthesis of InP/ZnS core/shell nanocrystal quantum dots (QDs) using a customized hybrid flow reactor, which is based on serial combination of a batch-type mixer and a flow-type furnace. InP cores and InP/ZnS core/shell QDs were successively synthesized in the hybrid reactor in a simple one-step process. In this reactor, the flow rate of the solutions was typically 1 ml min(-1), 100 times larger than that of conventional microfluidic reactors. In order to synthesize high-quality InP/ZnS QDs, we controlled both the flow rate and the crystal growth temperature. Finally, we obtained high-quality InP/ZnS QDs in colors from bluish green to red, and we demonstrated that these core/shell QDs could be incorporated into white-light-emitting diode (LED) devices to improve color rendering performance.
我们使用定制的混合流反应器连续大规模合成了 InP/ZnS 核壳纳米晶体量子点（QD），该反应器基于分批式混合器和流动式炉的串联组合。InP 核和 InP/ZnS 核壳 QD 可在混合反应器中一步法连续合成。在该反应器中，溶液的流速通常为 1 ml min(-1)，是传统微流控反应器的 100 倍。为了合成高质量的 InP/ZnS QD，我们控制了流速和晶体生长温度。最终，我们获得了从蓝绿色到红色的高质量 InP/ZnS QD，并证明这些核壳 QD 可以被整合到白光发光二极管（LED）器件中以改善显色性能。
