Schofield Ross C, Burdekin Paul, Fasoulakis Anastasios, Devanz Louise, Bogusz Dominika P, Hoggarth Rowan A, Major Kyle D, Clark Alex S
Centre for Cold Matter, Blackett Laboratory, Imperial College London, Prince Consort Road, SW7 2AZ, London, United Kingdom.
Quantum Engineering Technology Labs, H. H. Wills Physics Laboratory and Department of Electrical and Electronic Engineering, University of Bristol, BS8 1FD, Bristol, United Kingdom.
Chemphyschem. 2022 Feb 16;23(4):e202100809. doi: 10.1002/cphc.202100809. Epub 2022 Jan 12.
Single organic molecules are promising photon sources for quantum technologies. In this work we show photon emission from dibenzoterrylene, a widely used organic emitter, in a new host matrix, para-terphenyl. We present a reprecipitation growth method that produces para-terphenyl nanocrystals which are ideal for integration into nanophotonic devices due to their small size. We characterise the optical properties of dibenzoterrylene in nanocrystals at room and cryogenic temperatures, showing bright, narrow emission from a single molecule. Spectral data on the vibrational energies is presented and a further 25 additional molecules are characterised. This emitter-host combination has potential for quantum technology purposes with wavelengths suitable for interfacing with quantum memories.
单有机分子是量子技术中很有前景的光子源。在这项工作中，我们展示了二苯并苝（一种广泛使用的有机发光体）在新的主体基质对三联苯中的光子发射。我们提出了一种再沉淀生长方法，该方法可制备出对三联苯纳米晶体，由于其尺寸小，非常适合集成到纳米光子器件中。我们在室温和低温下表征了纳米晶体中二苯并苝的光学性质，展示了来自单个分子的明亮、窄发射。给出了关于振动能量的光谱数据，并对另外25个分子进行了表征。这种发光体 - 主体组合在量子技术应用方面具有潜力，其波长适合与量子存储器接口。
