Hail Claudio U, Höller Christian, Matsuzaki Korenobu, Rohner Patrik, Renger Jan, Sandoghdar Vahid, Poulikakos Dimos, Eghlidi Hadi
Laboratory of Thermodynamics in Emerging Technologies, ETH Zürich, Sonneggstrasse 3, 8092, Zürich, Switzerland.
Max Planck Institute for the Science of Light, Staudtstr. 2, 91058, Erlangen, Germany.
Nat Commun. 2019 Apr 23;10(1):1880. doi: 10.1038/s41467-019-09877-5.
Organic compounds present a powerful platform for nanotechnological applications. In particular, molecules suitable for optical functionalities such as single photon generation and energy transfer have great promise for complex nanophotonic circuitry due to their large variety of spectral properties, efficient absorption and emission, and ease of synthesis. Optimal integration, however, calls for control over position and orientation of individual molecules. While various methods have been explored for reaching this regime in the past, none satisfies requirements necessary for practical applications. Here, we present direct non-contact electrohydrodynamic nanoprinting of a countable number of photostable and oriented molecules in a nanocrystal host with subwavelength positioning accuracy. We demonstrate the power of our approach by writing arbitrary patterns and controlled coupling of single molecules to the near field of optical nanostructures. Placement precision, high yield and fabrication facility of our method open many doors for the realization of novel nanophotonic devices.
有机化合物为纳米技术应用提供了一个强大的平台。特别是，适用于诸如单光子产生和能量转移等光学功能的分子，因其具有多种多样的光谱特性、高效的吸收和发射以及易于合成的特点，在复杂的纳米光子电路方面具有巨大的潜力。然而，要实现最佳集成，需要对单个分子的位置和取向进行控制。尽管过去已经探索了各种方法来达到这一状态，但没有一种方法能满足实际应用所需的要求。在此，我们展示了在纳米晶体主体中以亚波长定位精度对可数数量的光稳定且取向的分子进行直接非接触式电流体动力学纳米打印。我们通过书写任意图案以及将单分子与光学纳米结构的近场进行可控耦合，证明了我们方法的强大之处。我们方法的放置精度、高产率和制造便利性为新型纳米光子器件的实现打开了许多大门。
