09 November 2022

Professor Feng Gao at Linköping University has received an ERC Consolidator Grant for work to create electrically pumped perovskite lasers. The project may fundamentally change laser technology and make new applications possible. The award is SEK 20 million over five years.

Professor Feng Gao and postdoctor Rui Zhang are talking in a corridor “This project will let me focus on an extremely challenging field", says Feng Gao, professor at the Department of Physics, Chemistry and Biology. Olov Planthaber

Lasers are widely used in our life.  For example, they are used for light shows during music concerts, and for surgery and cancer treatments. They are also used in consumer electronics, such as smart phones for face recognition and cars for autonomous driving. The increasing demand of using lasers in consumer electronics requires new breakthroughs of materials for laser diodes, which can also open up new applications for lasers.

Laser light can be produced in several ways. The most common method is to pass high-intensity light through a gain medium, such as a gemstone or noble gas, which produces light waves of a single wavelength that are in phase with each other. The transfer of energy to the medium is called “pumping”. It is, however, also possible to produce laser light using other media and other sources of energy, such as electricity.

Perovskites as gain medium

Perovskites form a family of semiconductor materials with many interesting properties. The chemical composition of the material determines the colour where it absorbs and emits light, and perovskites are suitable for applications in solar cells, light-emitting diodes and optical communications. 

Next generation of laser diodes with the aid of perovskites is the application that Professor Feng Gao from the Department of Physics, Chemistry and Biology will work on in a project that has received SEK 20 million from the European Research Council (ERC). Its aim is to produce a new type of laser that uses perovskites as their key material.

“Electrically pumped lasers are the holy grail in optoelectronics. We believe that laser technology will be revolutionised if we can develop perovskite-based media that use electrical pumping. One example will be cheap, large-scale lasers that can be used in integrated photonic chips for advanced computing,” says Feng Gao.

ERC Consolidator Grant

The project will run for five years and has been made possible by a research grant from the European Research Council, ERC. ERC Consolidator Grants are awarded to researchers in the prime of their career, and provide funding for several years. They are intended to make it possible to solve large and important research questions.

“This project will let me focus on an extremely challenging field – laser diodes in which the medium (in this case perovskites) can be produced from solution. I’m really looking forward to tryingt our ideas,” says Feng Gao.

Contact

Postdoctor Rui Zhang in the laboratory

Solar cell material can assist self-driving cars in the dark

Material used in organic solar cells can be used as light sensors in electronics. This is shown by researchers at LiU who have developed a type of sensor able to detect circularly polarised red light. Their study is published in Nature Photonics.

Two persons in a lab with a laserinstrument infront of them on a table full of cables.

Better cybersecurity with new material

Digital information exchange can be safer, cheaper and more environmentally friendly with the help of a new type of random number generator for encryption developed at LiU. The technology paves the way for a new type of quantum communication.

A stretchable thermoelectric generator

Four materials scientists at LiU share SEK 80 million

Materials research is a strength of Linköping University. This is shown not least by the outcome of the European Research Council's calls, which this round resulted in four grants totalling around SEK 80 million.

Research

Latest news from LiU

Man on balkony (Simone Fabiano).

Developing soft electronic devices mimicking the brain

Simone Fabiano, senior associate professor at the Laboratory of Organic Electronics, has been granted SEK 23 million from the ERC to develop a new type of soft electronic device inspired by the human brain.

The temperature is rising ahead of this year’s climate summit

Her passport is already on her desk. Maria Jernnäs at Tema M - Environmental Change is ready to leave for this year’s climate summit in Dubai. But despite the increasingly acute climate threat, she does not think negotiations will be easy.

Digital threads built on AI in a new research project

Linköping University, Volvo Construction Equipment, Bosch Thermoteknik, Mälardalen University, and Addiva are joining forces to advance resource efficiency and promote a circular economy in the Swedish manufacturing industry.