IQE PLC. Patent applications |
Patent application number | Title | Published |
20150041863 | MULTIJUNCTION PHOTOVOLTAIC DEVICE HAVING AN SI BARRIER BETWEEN CELLS - A photovoltaic device comprises an interface ( | 02-12-2015 |
20140345679 | MULTIJUNCTION PHOTOVOLTAIC DEVICE HAVING SIGE(SN) AND GAASNSB CELLS - A multijunction tandem photovoltaic device is disclosed having a bottom subcell of silicon germanium or silicon germanium tin material and above that a subcell of gallium nitride arsenide antimonide material. The materials are lattice matched to gallium arsenide, which preferably forms the substrate. Preferably, further lattice matched subcells of gallium arsenide, indium gallium phosphide and aluminium gallium arsenide or aluminium indium gallium phosphide are provided. | 11-27-2014 |
20140326301 | MULTIJUNCTION PHOTOVOLTAIC DEVICE HAVING SIGE(SN) AND (IN)GAASNBI CELLS - A multijunction tandem photovoltaic device is disclosed having a bottom subcell of silicon germanium or silicon germanium tin material and above that a subcell of gallium nitride arsenide bismide, or indium gallium nitride arsenide bismide, material. The materials are lattice matched to gallium arsenide, which preferably forms the substrate. Preferably, further lattice matched subcells of gallium arsenide, indium gallium phosphide and aluminium gallium arsenide or aluminium indium gallium phosphide are provided. | 11-06-2014 |