Promising candidates revealed for next-generation LED-based data communications

Date:
August 26, 2021
Source:
University of Surrey
Summary:
A new article has detailed how two relatively unexplored
semiconducting materials can satisfy the telecommunication
industry's hunger for enormous amounts of data at ever-greater
speeds.



FULL STORY ==========================================================================
A new paper from the University of Surrey and the University of Cambridge
has detailed how two relatively unexplored semiconducting materials can
satisfy the telecommunication industry's hunger for enormous amounts of
data at ever- greater speeds.


========================================================================== Light-emitting diode (LED)-based communications techniques allow computing devices, including mobile phones, to communicate with one another by
using infrared light. However, LED techniques are underused because in
its current state LED transmits data at far slower speeds than other
wireless technologies such as light-fidelity (Li-Fi).

In a paper published by Nature Electronics, the researchers from Surrey
and Cambridge, along with partners from the University of Electronic
Science and Technology of China, examine how organic semiconductors,
colloidal quantum dots (CQDs) and metal halide perovskites (perovskites),
can be used in LED-based optical communications systems.

The research team explored efforts to improve the performance and
efficiency of these LEDs, and they considered their potential applications
in on-chip interconnects and Li-Fi.

Dr Aobo Ren, the co-first author and visiting postdoctoral researcher
at the University of Surrey, said: "There's excitement surrounding
CQDs and perovskites because they offer great promise for low-power, cost-effective and scalable communications modules.



========================================================================== "Although the conventional inorganic thin-film technologies are likely to continue to play a dominant role in optical communications, we believe
that LEDs based on these materials can play a complementary role that
could have a sizeable impact on the industry." Hao Wang, the co-first
author and PhD student at the University of Cambridge, said: "Future applications of LEDs will not be limited to the fields of lighting and displays. The development of LEDs based on these solution-processable
materials for optical communication purposes has only begun, and their performance is still far from what's required. It is necessary and timely
to discuss the potential strategies and present technical challenges
for the deployment of real-world communication links using these LEDs
from the material, device and system aspects." Professor Jiang Wu,
the corresponding author from the University of Electronic Science
and Technology of China, said: "Photonic devices for the Internet
of Things (IoT) and 6G communication systems need to be high-speed,
low-cost and easy to integrate. Organic semiconductors, CQDs and
perovskites are promising materials that could be used to complement
and/or compete with conventional inorganic counterparts in particular optoelectronic applications." Dr Wei Zhang, the corresponding author
and Senior Lecturer from the University of Surrey, said: "IoT and 6G communication systems represent a trillion-dollar market in the next few
years. We are proud to collaborate with the top research teams in this
field and accelerate the development of emerging data communication
technology for rapid entry to the market in the next decade." ========================================================================== Story Source: Materials provided by University_of_Surrey. Note: Content
may be edited for style and length.


========================================================================== Journal Reference:
1. Aobo Ren, Hao Wang, Wei Zhang, Jiang Wu, Zhiming Wang, Richard
V. Penty,
Ian H. White. Emerging light-emitting diodes for next-generation
data communications. Nature Electronics, 2021; 4 (8): 559 DOI:
10.1038/s41928- 021-00624-7 ==========================================================================

Link to news story: https://www.sciencedaily.com/releases/2021/08/210826111659.htm

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