非聚集性碲化汞胶体量子点的合成及空气稳定n型掺杂的出现。
Synthesis of Nonaggregating HgTe Colloidal Quantum Dots and the Emergence of Air-Stable n-Doping.
作者信息
Shen Guohua, Chen Menglu, Guyot-Sionnest Philippe
机构信息
James Franck Institute, The University of Chicago , 929 East 57th Street, Chicago, Illinois 60637, United States.
出版信息
J Phys Chem Lett. 2017 May 18;8(10):2224-2228. doi: 10.1021/acs.jpclett.7b00775. Epub 2017 May 5.
PMID:28467091
Abstract
Nonaggregating HgTe colloidal quantum dots are synthesized without thiols as stabilizing ligands. The dots are spherical with a size tunability from 4.8 to 11.5 nm. When the results from optical and electrochemical measurement are combined, air-stable n-doping is observed in large sizes of HgTe quantum dots, which is attributed to the Hg-rich surface.
摘要
在没有硫醇作为稳定配体的情况下合成了非聚集的碲化汞胶体量子点。这些量子点呈球形，尺寸可在4.8至11.5纳米之间调节。当结合光学和电化学测量结果时，在大尺寸的碲化汞量子点中观察到了空气稳定的n型掺杂，这归因于富汞表面。
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