Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International

Wikipedia Affiliate Button

Home > Press > A combined optical transmitter and receiver: Bidirectional optical signal transmission between two identical devices using perovskite diodes

The tiny unit that can both receive and transmit optical signals.

CREDIT
Magnus Johansson
The tiny unit that can both receive and transmit optical signals. CREDIT Magnus Johansson

Abstract:
Researchers at Linköping University, together with colleagues in China, have developed a tiny unit that is both an optical transmitter and a receiver. "This is highly significant for the miniaturisation of optoelectronic systems", says LiU professor Feng Gao.

A combined optical transmitter and receiver: Bidirectional optical signal transmission between two identical devices using perovskite diodes

Linköping, Sweden | Posted on April 3rd, 2020

Chunxiong Bao, postdoc at Linköping University, types in a sentence on a computer screen, and the same sentence immediately appears on the neighbouring screen, optically transferred from one diode to another. The diode is made from perovskite, one of a large family of materials defined by their special crystal structure.

Perovskites consist of metal and halogen and have proved to be versatile semiconductors that are easy and cheap to manufacture. They also have the useful property of both detecting and emitting light. Researchers at Linköping University, together with colleagues in China, have now developed a diode that can be directed in two directions: it can receive optical signals and it can just as easily transmit them. This means that text and photographs can be wirelessly transmitted from one unit to the other and back again, using two identical units. And so rapidly that we experience it as happening in real time.

In the autumn of 2018, Chunxiong Bao discovered the correct perovskite to build a photodetector showing higher performance and longer lifetime, and described this in an article in Advanced Materials. The development of light-emitting diodes from perovskites has also made rapid progress. Weidong Xu, postdoc at Linköping University, developed a perovskite light-emitting diode with an efficiency of 21% last year, which is among the best in the world, and published the results in Nature Photonics. What the scientists have now achieved is to develop a perovskite that comprises a light-emitting diode and that at the same time is an excellent photodetector.

All optical communication requires rapid and reliable photodetectors - devices that capture light and convert it into an electrical signal. Current optical communication systems use photodetectors made from materials such as silicon and indium gallium arsenide. These are, however, expensive and they cannot be used in applications that require low weight, flexibility, or large surfaces.

"In order to demonstrate the potential of our diode with double function, we have built a monolithic sensor that detects heart beats in real time, and an optical, bidirectional communication system", says Chunxiong Bao, researcher in the Division of Biomolecular and Organic Electronics.

This tiny unit that can both receive and transmit optical signals provides a unique opportunity to simplify and shrink the functionality of the current optical systems, in particular given that it can also be integrated with traditional electronic circuits.

"We have managed to integrate optical signal transmission and reception into one circuit, something that makes it possible to transmit optical signals in both directions between two identical circuits. This is valuable in the field of miniaturised and integrated optoelectronics", says Feng Gao, professor and head of research at the Division of Biomolecular and Organic Electronics.

####

For more information, please click here

Contacts:
Feng Gao

46-132-86882

@liu_universitet

Copyright © Linköping University

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

The results have been published in Nature Electronics.

Related News Press

News and information

The lightest shielding material in the world: Protection against electromagnetic interference July 3rd, 2020

Spintronics: Faster data processing through ultrashort electric pulses July 3rd, 2020

A path to new nanofluidic devices applying spintronics technology: Substantial increase in the energy conversion efficiency of hydrodynamic power generation via spin currents July 3rd, 2020

Towards lasers powerful enough to investigate a new kind of physics: An international team of researchers has demonstrated an innovative technique for increasing the intensity of lasers July 3rd, 2020

Perovskites

Crystal structure discovered almost 200 years ago could hold key to solar cell revolution July 3rd, 2020

Printed perovskite LEDs: An innovative technique towards a new standard process of electronics manufacturing June 12th, 2020

Getting through the bottleneck—A new class of layered perovskite with high oxygen-ion conductivity April 29th, 2020

FSU researchers discover new structure for promising class of materials April 24th, 2020

Govt.-Legislation/Regulation/Funding/Policy

Towards lasers powerful enough to investigate a new kind of physics: An international team of researchers has demonstrated an innovative technique for increasing the intensity of lasers July 3rd, 2020

Carbon-loving materials designed to reduce industrial emissions July 3rd, 2020

Charcoal a weapon to fight superoxide-induced disease, injury: Nanomaterials soak up radicals, could aid treatment of COVID-19 July 2nd, 2020

The nature of nuclear forces imprinted in photons June 30th, 2020

Possible Futures

Spintronics: Faster data processing through ultrashort electric pulses July 3rd, 2020

A path to new nanofluidic devices applying spintronics technology: Substantial increase in the energy conversion efficiency of hydrodynamic power generation via spin currents July 3rd, 2020

Towards lasers powerful enough to investigate a new kind of physics: An international team of researchers has demonstrated an innovative technique for increasing the intensity of lasers July 3rd, 2020

Crystal structure discovered almost 200 years ago could hold key to solar cell revolution July 3rd, 2020

Chip Technology

Spintronics: Faster data processing through ultrashort electric pulses July 3rd, 2020

A path to new nanofluidic devices applying spintronics technology: Substantial increase in the energy conversion efficiency of hydrodynamic power generation via spin currents July 3rd, 2020

Extensive review of spin-gapless semiconductors: Next-generation spintronics candidates: spin-gapless semiconductors (SGSs) bridge the zero-gap materials and half-metals June 26th, 2020

Process for 'two-faced' nanomaterials may aid energy, information tech June 26th, 2020

Optical computing/Photonic computing

A Tremendous Recognition’ Engineer Jonathan Klamkin earns prestigious award from DARPA June 23rd, 2020

Polymers can fine-tune attractions between suspended nanocubes: Interactions between hollow silica nanocubes suspended in a solution can be adjusted by varying the concentration of polymer molecules added to the mixture. June 19th, 2020

Printed perovskite LEDs: An innovative technique towards a new standard process of electronics manufacturing June 12th, 2020

Configurable circuit technology poised to expand silicon photonic applications: Chips can be programmed after fabrication for use in communication, computing or biomedical applications May 29th, 2020

Discoveries

The lightest shielding material in the world: Protection against electromagnetic interference July 3rd, 2020

Spintronics: Faster data processing through ultrashort electric pulses July 3rd, 2020

A path to new nanofluidic devices applying spintronics technology: Substantial increase in the energy conversion efficiency of hydrodynamic power generation via spin currents July 3rd, 2020

Towards lasers powerful enough to investigate a new kind of physics: An international team of researchers has demonstrated an innovative technique for increasing the intensity of lasers July 3rd, 2020

Announcements

Towards lasers powerful enough to investigate a new kind of physics: An international team of researchers has demonstrated an innovative technique for increasing the intensity of lasers July 3rd, 2020

Crystal structure discovered almost 200 years ago could hold key to solar cell revolution July 3rd, 2020

Flexible material shows potential for use in fabrics to heat, cool July 3rd, 2020

Carbon-loving materials designed to reduce industrial emissions July 3rd, 2020

Grants/Sponsored Research/Awards/Scholarships/Gifts/Contests/Honors/Records

Towards lasers powerful enough to investigate a new kind of physics: An international team of researchers has demonstrated an innovative technique for increasing the intensity of lasers July 3rd, 2020

Charcoal a weapon to fight superoxide-induced disease, injury: Nanomaterials soak up radicals, could aid treatment of COVID-19 July 2nd, 2020

The nature of nuclear forces imprinted in photons June 30th, 2020

A Tremendous Recognition’ Engineer Jonathan Klamkin earns prestigious award from DARPA June 23rd, 2020

Photonics/Optics/Lasers

Towards lasers powerful enough to investigate a new kind of physics: An international team of researchers has demonstrated an innovative technique for increasing the intensity of lasers July 3rd, 2020

Researchers discover new boron-lanthanide nanostructure June 25th, 2020

A Tremendous Recognition’ Engineer Jonathan Klamkin earns prestigious award from DARPA June 23rd, 2020

Polymers can fine-tune attractions between suspended nanocubes: Interactions between hollow silica nanocubes suspended in a solution can be adjusted by varying the concentration of polymer molecules added to the mixture. June 19th, 2020

Research partnerships

Cellulose for manufacturing advanced materials: A review of the scientific literature made at the University of the Basque Country (UPV/EHU) highlights the potential of hybrid materials based on cellulose nanocrystals June 26th, 2020

Argonne researchers create active material out of microscopic spinning particles May 29th, 2020

Surrey reveals its implantable biosensor that operates without batteries May 22nd, 2020

Scientists use light to accelerate supercurrents, access forbidden light, quantum world May 21st, 2020

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project