星期日, 2月 28, 2021
Home PV News Stretching exercises for crystalline silicon solar cells

Stretching exercises for crystalline silicon solar cells

Researchers from Saudi Arabia’s King Abdullah University of Science and Technology have created flexible solar cells made of crystalline silicon. They claim to have stretched a crystalline silicon cell’s surface by around 95% while maintaining conversion efficiency of around 19%.

Source:pv magazine

Scientists at the Solar Center of Saudi Arabia’s King Abdullah University of Science and Technology (KAUST) claim to have been able to turn a crystalline silicon solar cell into a flexible device. The researchers said the feat was achieved by coating the rear side of a rigid crystalline cell with ecoflex, which they defined as a highly stretchable, inexpensive, biocompatible elastomer.

Using a laser technique, the scientists then cut the cell into rectangular silicon islands which remained glued together by the elastomer applied to the rear of the cell. “Each silicon island remained electrically connected to its neighbors via interdigitated back contacts that ran the length of the flexible solar cell,” the researchers stated.

Triangulation

In their first attempt, during which they maintained the islands’ rectangular shape, the researchers were able to stretch the cell’s surface by around 54% before diagonal cracks occurred in the brittle silicon islands.

Switching to a triangular shape for the silicon islands, the researchers say they were able to stretch the cell’s surface by around 95% while retaining a 19% conversion efficiency. “Using the triangular pattern, we achieve world record stretchability and efficiency,” said research author Muhammad Mustafa Hussain.

The researchers said their material could drive low-cost production of flexible crystalline silicon cells and they are working to improve the multi-directional stretching capability.

LEAVE A REPLY

Please enter your comment!
Please enter your name here

- Advertisment -

Most Popular

ComEd report finds investments in residential solar, energy efficiency benefit all customers

ComEd this week reported to the Illinois Commerce Commission (ICC) that residential customers are receiving savings and clean energy benefits from the Future Energy...

New Solar Access Act aims to implement automated solar permitting in most California cities

Senator Scott Wiener (D-San Francisco) introduced SB 617, the Solar Access Act. SB 617 implements automated solar permitting in local jurisdictions with over 10,000...

Biden administration restores amendments to Desert Renewable Energy Conservation Plan

California Energy Commissioner Karen Douglas released the following statement in response to the U.S. Department of Interior’s decision to revoke amendments to the Desert...

Missouri legislature considers taxing solar-powered households and businesses

The Missouri Solar Energy Industries Association (MOSEIA) announces that the state’s upcoming HB539 and SB178 bills, which seek to modify the state’s net-metering program,...