The Department of Physics and Astronomy, The Hicks Building, The University of Sheffield, Hounsfield Rd, Sheffield, South Yorkshire, S3 7RH, UK.
Beilstein J Nanotechnol. 2012;3:324-8. doi: 10.3762/bjnano.3.36. Epub 2012 Apr 10.
We have controllably positioned, with nanometre precision, single CdSe quantum dots referenced to a registration template such that the location of a given nanoparticle on a macroscopic (≈1 cm(2)) sample surface can be repeatedly revisited. The atomically flat sapphire substrate we use is particularly suited to optical measurements of the isolated quantum dots, enabling combined manipulation-spectroscopy experiments on a single particle. Automated nanoparticle manipulation and imaging routines have been developed so as to facilitate the rapid assembly of specific nanoparticle arrangements.
我们已经能够以纳米级精度控制位置，将单个 CdSe 量子点参考到一个注册模板上，从而可以反复访问宏观（≈1cm2）样品表面上给定纳米粒子的位置。我们使用的原子级平坦蓝宝石衬底特别适合孤立量子点的光学测量，从而能够在单个粒子上进行组合操纵-光谱实验。已经开发了自动化纳米粒子操纵和成像例程，以方便特定纳米粒子排列的快速组装。
