Title :
Ultrathin GaAs solar cells with a nanostructured back mirror
Author :
St?phane Collin;Nicolas Vandamme;Julie Goffard;Andrea Cattoni;Aristide Lemaitre;Jean-Fran?ois Guillemoles
Author_Institution :
Laboratoire de Photonique et de Nanostructures LPN-CNRS, 91460 MARCOUSSIS, France
fDate :
6/1/2015 12:00:00 AM
Abstract :
We have designed and fabricated ultra-thin (t=120-220nm) GaAs solar cells. Multi-resonant light trapping is achieved with a nanostructured silver back mirror. The short-circuit current predicted by numerical calculations is Jsc=24.9mA/cm2 for t=220nm. The nanostructured silver mirror is combined with localized ohmic contacts. Ultra-thin GaAs solar cells are patterned by soft nano-imprint lithography and transferred on a glass substrate. Short-circuit currents above 21mA/cm2 have been measured on 220nm-thick solar cells.
Keywords :
"Photovoltaic cells","Gallium arsenide","Mirrors","Absorption","Silver","Short-circuit currents","Fabrication"
Conference_Titel :
Photovoltaic Specialist Conference (PVSC), 2015 IEEE 42nd
DOI :
10.1109/PVSC.2015.7356352
