可调谐单分子发光二极管，具有单光子精度。

A Tunable Single-Molecule Light-Emitting Diode with Single-Photon Precision.

机构信息

Beijing National Laboratory for Molecular Sciences, National Biomedical Imaging Center, College of Chemistry and Molecular Engineering, Peking University, 292 Chengfu Road, Haidian District, Beijing, 100871, P. R. China.

State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu, 730000, P. R. China.

出版信息

Adv Mater. 2023 Apr;35(16):e2209750. doi: 10.1002/adma.202209750. Epub 2023 Mar 9.

DOI:10.1002/adma.202209750

PMID:36718825

Abstract

A robust single-molecule light-emitting diode (SM-LED) with high color purity, linear polarization, and efficiency tunability is prepared by covalently integrating one fluorescent molecule into nanogapped graphene electrodes. Furthermore, single-molecule Förster resonance energy transfer from the electroluminescent center to different accepters is achieved through rational molecular engineering, enabling construction of a multicolor SM-LED. All these characterizations are accomplished in the photoelectrical integration system with high temporal/spatial/energy resolution, demonstrating the capability of the single-photon emission of SM-LEDs. The success in developing high-performance SM-LEDs inspires the development of the next generation of commercial display devices and promises a single-photon emitter for use in quantum computation and quantum communication.

摘要

通过将一个荧光分子共价集成到纳米间隙的石墨烯电极中，制备出了一种具有高色纯度、线性偏振和可调谐效率的稳健的单分子发光二极管（SM-LED）。此外，通过合理的分子工程实现了从电致发光中心到不同受体的单分子Förster 共振能量转移，从而构建了多色 SM-LED。所有这些特性都是在具有高时间/空间/能量分辨率的光电集成系统中完成的，证明了 SM-LED 单光子发射的能力。在开发高性能 SM-LED 方面的成功为下一代商业显示设备的发展提供了灵感，并为量子计算和量子通信中的单光子发射器铺平了道路。