Title :
Germanium-on-glass solar cells
Author :
Colace, Lorenzo ; Sorianello, Vito ; Maragliano, Carlo ; Assanto, Gaetano ; Fulgoni, D. ; Nash, L. ; Palmer, M.
Author_Institution :
Dept. Electron. Eng., Univ. “Roma Tre”, Rome, Italy
Abstract :
We report on the fabrication and characterization of Ge solar cells on glass realized by layer transfer and epitaxial regrowth. These devices exhibit typical conversion efficiency exceeding 2.4% under AM1.5 irradiation and maximum efficiency of 3.7% under concentrated excitation. This approach enables flexible and affordable multi-junction engineering for solar energy conversion.
Keywords :
elemental semiconductors; epitaxial growth; germanium; glass; semiconductor growth; semiconductor-insulator boundaries; solar cells; wafer bonding; Ge-SiO2; concentrated excitation; conversion efficiency; epitaxial regrowth; germanium-on-glass solar cells; layer transfer; maximum efficiency; multijunction engineering; solar energy conversion; Epitaxial growth; Germanium; Glass; Performance evaluation; Photovoltaic cells; Silicon; Substrates; germanium; solar cells; wafer bonding;
Conference_Titel :
Group IV Photonics (GFP), 2011 8th IEEE International Conference on
Conference_Location :
London
Print_ISBN :
978-1-4244-8338-9
DOI :
10.1109/GROUP4.2011.6053781
