公开(公告)号：US20080230112A1

公开(公告)日：2008-09-25

申请号：US12076956

申请日：2008-03-25

申请人： Keith W. Barnham ,  Ian M. Ballard ,  Massimo Mazzer

发明人： Keith W. Barnham ,  Ian M. Ballard ,  Massimo Mazzer

IPC分类号： H01L31/052 ,  H01L31/06

CPC分类号： H01L31/078 ,  H01L27/14647 ,  H01L31/043 ,  H01L31/0475 ,  H01L31/061 ,  H01L2924/0002 ,  H02S10/30 ,  Y02E10/52 ,  H01L2924/00

摘要： A photovoltaic system includes a photovoltaic device that includes a lower photovoltaic cell fabricated from semiconductor material having a first bandgap, and having first electrical contacts for extraction of current from the lower cell; an electrically insulating layer monolithically fabricated on the lower photovoltaic cell; and an upper photovoltaic cell monolithically fabricated on the electrically insulating layer from semiconductor material having a second bandgap larger than the first bandgap, and having second electrical contacts for extraction of current from the upper cell. The photovoltaic system also includes one or more first photon sources operable to supply photons to the photovoltaic device, the photons having wavelengths in a first wavelength range associated primarily with the first bandgap. The photovoltaic system further includes one or more second photon sources operable to supply photons to the photovoltaic device, the photons having wavelengths in a second wavelength range primarily associated with the second bandgap.

摘要翻译： 光伏系统包括光伏器件，其包括由具有第一带隙的半导体材料制成的下部光伏电池，并且具有用于从下部电池提取电流的第一电触点; 整体地制造在下部光伏电池上的电绝缘层; 以及在具有大于第一带隙的第二带隙的半导体材料的电绝缘层上单片地制造的上部光伏电池，并且具有用于从上部电池提取电流的第二电触点。 光伏系统还包括可操作以向光伏器件提供光子的一个或多个第一光子源，所述光子具有主要与第一带隙相关联的第一波长范围的波长。 光伏系统还包括一个或多个可操作以向光伏器件提供光子的第二光子源，所述光子具有主要与第二带隙相关联的第二波长范围的波长。