A solar cell is made of two types of semiconductors, called p-type and n-type silicon. The p-type silicon is produced by adding atoms—such as boron or gallium—that have one less electron in their ...

Researchers have achieved an efficiency of 24.6% with a copper indium gallium selenide (CIGS) and perovskite tandem solar ...

These cells generate the energy needed to make the calculator work. (PaulPaladin ... towards the sun all day. Image caption, A house on the Isle of Mull with solar panels on its roof.

A group of scientists from the Technical University of Denmark has fabricated a solar cell based on selenium by replacing thermal annealing with a new laser-annealing strategy. “In our work ...

Its efficiency is very poor, and much work remains to be done. The team first wants to make a prototype solar cell and ...