1.MIIT Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics & Nanomaterials, School of Materials Science and Engineering, Nanjing University of Science and Technology, Nanjing 210094, China
2.Peter Grünberg Research Center, Laboratory of Broadband Wireless Communication and Sensor Network Technology, Ministry of Education, Nanjing University of Posts and Telecommunications, Nanjing 210003, China
Jizhong Song (songjizhong@njust.edu.cn)
Yongjin Wang (wangyj@njupt.edu.cn)
Haibo Zeng (zeng.haibo@njust.edu.cn)
纸质出版日期:2020,
网络出版日期:2020-09-16,
收稿日期:2020-04-29,
修回日期:2020-08-22,
录用日期:2020-08-24
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Perovskite light-emitting/detecting bifunctional fibres for wearable LiFi communication[J]. LSA, 2020,9(5):1578-1586.
Shan, Q. S. et al. Perovskite light-emitting/detecting bifunctional fibres for wearable LiFi communication. Light: Science & Applications, 9, 1578-1586 (2020).
Perovskite light-emitting/detecting bifunctional fibres for wearable LiFi communication[J]. LSA, 2020,9(5):1578-1586. DOI: 10.1038/s41377-020-00402-8.
Shan, Q. S. et al. Perovskite light-emitting/detecting bifunctional fibres for wearable LiFi communication. Light: Science & Applications, 9, 1578-1586 (2020). DOI: 10.1038/s41377-020-00402-8.
Light fidelity (LiFi)
which is emerging as a compelling technology paradigm shifting the common means of high-capacity wireless communication technologies
requires wearable and full-duplex compact design because of its great significance in smart wearables as well as the 'Internet of Things'. However
the construction of the key component of wearable full-duplex LiFi
light-emitting/detecting bifunctional fibres
is still challenging because of the conflicting process between carrier separation and recombination
as well as the highly dynamic film-forming process. Here
we demonstrate light-emitting/detecting bifunctional fibres enabled by perovskite QDs with hybrid components. The hybrid perovskite inks endow fibres with super-smooth QD films. This
combined with the small exciton binding energy and high carrier mobility of perovskite QDs
enables successful integration of electroluminescence and photodetection into monofilaments. The bifunctional fibres possess the narrowest electroluminescence full width at half maximum of ~19 nm and
more importantly
the capability for simultaneously transmitting and receiving information. The successful fabrication of narrow emission full-duplex LiFi fibres paves the way for the fabrication and integration of low crosstalk interoperable smart wearables.
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