星期二, 十月 20, 2020
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

Apple data center in Denmark powered by 50 MW of solar

Apple has revealed that its data center in Viborg, Denmark, is now being powered by a 50 MW solar project under a long-term power...

Solar + storage experiment in Tampa Bay selected for Solar Energy Innovation Network project

An innovative solar + storage research project led by the Tampa Bay Regional Planning Council has been selected as a finalist for the Solar...

Chinese PV Industry Brief: 350 MW wind-solar project, 200 MW of floating PV

Longyuan Energy said this week that it has signed an agreement with the municipal authorities in Binzhou, Shandong province, to build 300 MW of solar...

IEEE creates education and credentialing program for interconnecting distributed resources to the grid

IEEE and the IEEE Standards Association (IEEE SA) announced the IEEE Std 1547-2018 Distributed Energy Resources (DER) Interconnection Commissioning: Education and Credentialing Program, a new...