康振辉教授、董彬教授与王涛教授及其合作者在Nat. Commun.上发表论文

作者：

Dalei Wang^1,2#, Xiaoxia Han^1#, Hao Wang^1#,Zenan Li¹, Zhaomin Chen¹, Qing Yang³, Mingcheng Yang³, Zexin Zhang⁴, Yizhi Zhu⁵, Jintao Tong¹, Jie Lin⁶, Jingsong Huang⁶, Daping Luo⁷, Tao Wang¹*, Wei Liu²*, Wenxue Li⁷, Chunxiang Xu⁵, Bin Dong¹*, Zhenhui Kang^1,8*

单位：

¹State Key Laboratory of Bioinspired Interfacial Materials Science,Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Institute of Functional Nano and Soft Materials (FUNSOM) and State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, Soochow University, Suzhou 215123, China.

²College of Optical, Mechanical and Electrical Engineering, Zhejiang A&F University, Hangzhou 311300, China.

³Beijing National Laboratory for Condensed Matter Physics and Laboratory of Soft Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China.

⁴College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.

⁵State Key Laboratory of Bioelectronics, School of Biological Sciences & Medical Engineering, Southeast University, Nanjing 210096, China.

⁶Oxford University, Oxford Suzhou Centre for Advanced Research, Suzhou 215123, China.

⁷State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China.

⁸Macao Institute of Materials Science and Engineering (MIMSE), MUST-SUDA Joint Research Center for Advanced Functional Materials, Macau University of Science and Technology, Taipa 999078, Macao, China.

摘要：

Directional light source not only helps to advance scientific progresses but also has great potentials in many application fields. However, it is still challenging to achieve the directional white light without optical elements. Here, we report a highly directional white-light emitter driven by 1064nm near-infrared laser with 1/60 solid angle that does not require the introduction of optical elements. The emitter which consists of binary components, i.e. carbon dot and titanium oxide, possesses a microlens-shape surface formed during the synthesis process. Upon near-infrared light excitation, carbon dot emits white light based on a fundamentally different mechanism, which may involve a process similar to bremsstrahlung, multiphoton and thermal processes. The emitted white light is then regulated in the near field by the microlens-shape surface due to the confinement effect, resulting in the high directionality. The highly directional white-light emitter exhibits excellent stability and repeatability, making it promising for applications including targeted illumination and projection.

影响因子：

15.7

分区情况：

一区

链接：

https://doi.org/10.1038/s41467-025-60838-7