Tag Archive for 'Commission for Technology and Innovation'

Thin film solar cells achieve new record energy conversion efficiency

January 21st, 2013 by Empa

Scientists at Empa, the Swiss Federal Laboratories for Materials Science and Technology, have developed thin film solar cells on flexible polymer foils with a new record efficiency of 20.4% for converting sunlight into electricity. The cells are based on CIGS semiconducting material (copper indium gallium (di)selenide) known for its potential to provide cost-effective solar electricity. […]

High-performance flexible and lightweight photovoltaic solar cells produced in Swiss laboratory

September 23rd, 2011 by Empa

‘Nature Materials‘ has published a paper on the technology yielding flexible solar cells with an 18.7% world record efficiency developed by scientists at the Swiss Federal Laboratories for Materials Science and Technology (EMPA). Key to the breakthrough is the control of the energy band gap grading in the copper indium gallium (di)selenide semiconductor, also known […]