Alta Devices sets new GaAs solar cell conversion efficiency record at 28.9%

Share on facebook
Facebook
Share on twitter
Twitter
Share on linkedin
LinkedIn
Share on reddit
Reddit
Share on email
Email
Specialist gallium arsenide (GaAs) PV manufacturer Alta Devices, a subsidiary of Hanergy Group has achieved a new solar cell conversion efficiency record of 28.9%, which was certified by NREL (National Renewable Energy Laboratory). Image: Alta Devices

Specialist gallium arsenide (GaAs) PV manufacturer Alta Devices, a subsidiary of Hanergy Group has achieved a new solar cell conversion efficiency record of 28.9%, which was certified by NREL (National Renewable Energy Laboratory).

Alta Devices has been a perennial world record holder for GaAs solar cell efficiency. The company uses a metalorganic chemical vapour deposition (MOCVD) process as well as an epitaxial lift-off (ELO) technique, which creates a thin, flexible, and lightweight solar cell for niche applications. 

One of Alta Devices founders, Professor Harry Atwater of Caltech said, “Achieving a new record for this class of devices is a landmark because a 1-sun, 1-junction cell is the archetypal solar cell. The fact that Alta is breaking its own record is also significant since many other teams have been actively attempting to break this record.”

The new record cell was said to be the first based on ‘Internal Luminescence Extraction’, which has enabled Alta to set the new record. Luminescence extraction is the escape of internal photons out of the front surface of a solar cell and minimise the emission out of the back surface to boost conversion efficiency.

Read Next

June 2, 2021
Solar cell manufacturer Maxwell Technologies has celebrated a record mass production efficiency for its heterojunction (HJ) solar cell.
June 1, 2021
Renewables investor Magnora AG has said it will increase its investment in perovskite solar specialist Evolar, taking a 40.7% stake in the company.
May 31, 2021
Researchers at the University of Sheffield have found a new way to extend the life of perovskite materials by more than three months, paving the way for new solar cell technologies.
May 10, 2021
LONGi Solar has set a record conversion efficiency of 25.09% for its N-type monocrystalline bifacial TOPCon cell that has been independently verified by the Institute for Solar Energy Research in Hamelin.
PV Tech Premium
April 12, 2021
Mark Osborne details how Solar Module Super League (SMSL) major JinkoSolar is transforming its manufacturing base, moving from an asset-lite model to one more vertically integrated.
March 12, 2021
LONGi Solar is planning to build a new 5GW high-efficiency monocrystalline solar cell plant in Yinchuan, China.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
July 6, 2021
Solar Media Events
August 24, 2021
Solar Media Events, Upcoming Webinars
October 6, 2021