公开(公告)号：WO2014018125A2

公开(公告)日：2014-01-30

申请号：PCT/US2013033567

申请日：2013-03-22

申请人： SOLAR JUNCTION CORP

发明人： JONES-ALBERTUS REBECCA E ,  SHELDON MICHAEL J

IPC分类号： H01L31/0725

CPC分类号： H01L31/0725 ,  H01L31/0735 ,  Y02E10/544

摘要： In a solar cell having one or more subcells, at least one subcell is provided with a reverse heterojunction, the reverse heterojunction being formed with an emitter and an adjacent base, wherein the emitter has a band gap that is at least 10 meV lower than that of the adjacent base in order to reduce sheet resistance of the emitter and/or increase the subcell current with minimal effect on the open-circuit voltage. Because of the increase in current, the decrease in emitter sheet resistance, and relatively unchanged open-circuit voltage of the subcell, the efficiency of a solar cell employing one or more subcells with reverse heterojunctions is enhanced.

摘要翻译： 在具有一个或多个子电池的太阳能电池中，至少一个子电池具有反向异质结，反向异质结由发射极和相邻的基底形成，其中发射极的带隙至少低于10meV， 以减小发射极的薄层电阻和/或增加子电池电流，同时对开路电压的影响最小。 由于电流的增加，发射极电阻的降低和子电池的开路电压相对不变，所以采用具有反向异质结的一个或多个子电池的太阳能电池的效率提高。

公开(公告)号：WO2013074530A2

公开(公告)日：2013-05-23

申请号：PCT/US2012064844

申请日：2012-11-13

申请人： SOLAR JUNCTION CORP

发明人： JONES-ALBERTUS REBECCA ,  MISRA PRANOB ,  SHELDON MICHAEL J ,  YUEN HOMAN B ,  LIU TING ,  DERKACS DANIEL ,  SABNIS VIJIT ,  WIEMER MICHAEL W ,  SUAREZ FERRAN

IPC分类号： H01L31/0687

CPC分类号： H01L31/0687 ,  H01L31/028 ,  H01L31/03048 ,  H01L31/06 ,  H01L31/0693 ,  H01L31/078 ,  H01L31/1844 ,  H01L31/1852 ,  H01L31/1856 ,  H01L31/1876 ,  Y02E10/544 ,  Y02P70/521

摘要： Multijunction solar cells having at least four subcells are disclosed, in which at least one of the subcells comprises a base layer formed of an alloy of one or more elements from group III on the periodic table, nitrogen, arsenic, and at least one element selected from the group consisting of Sb and Bi, and each of the subcells is substantially lattice matched. Methods of manufacturing solar cells and photovoltaic systems comprising at least one of the multijunction solar cells are also disclosed.

摘要翻译： 公开了具有至少四个子电池的多结太阳能电池，其中至少一个子电池包括由周期表上第III族的一种或多种元素的合金形成的基底层，氮，砷和至少一种选择的元素 来自由Sb和Bi组成的组，并且每个子电池基本上晶格匹配。 还公开了制造包括至少一个多结太阳能电池的太阳能电池和光伏系统的方法。

公开(公告)号：WO2012115838A3

公开(公告)日：2012-10-18

申请号：PCT/US2012025307

申请日：2012-02-15

申请人： SOLAR JUNCTION CORP ,  JONES-ALBERTUS REBECCA E ,  ARIAS FERRAN SUAREZ ,  WIEMER MICHAEL WEST ,  SHELDON MICHAEL J ,  YUEN HOMAN B

发明人： JONES-ALBERTUS REBECCA E ,  ARIAS FERRAN SUAREZ ,  WIEMER MICHAEL WEST ,  SHELDON MICHAEL J ,  YUEN HOMAN B

IPC分类号： H01L31/00

CPC分类号： H01L31/0687 ,  H01L31/0304 ,  H01L31/06875 ,  Y02E10/52 ,  Y02E10/544

摘要： Photovoltaic cells with one or more subcells are provided with a wide band gap, pseudomorphic window layer of at least 15 nm in thickness and with an intrinsic material lattice constant that differs by at least 1% from an adjacent emitter layer. This window layer has a higher band gap than a window layer with substantially the same intrinsic material lattice constant as the adjacent emitter layer, which increases the light transmission through the window, thereby increasing the current generation in the solar cell. The quality of being pseudomorphic material preserves a good interface between the window and the emitter, reducing the minority carrier surface recombination velocity. A method is provided for building a wide band gap, pseudomorphic window layer of a photovoltaic cell that has an intrinsic material lattice constant that differs by at least 1% from the adjacent emitter layer.

摘要翻译： 具有一个或多个子电池的光伏电池具有宽带隙，厚度至少为15nm且具有与相邻发射极层相差至少1％的固有材料晶格常数的赝晶窗口层。 该窗口层具有比具有与相邻发射极层基本上相同的本征材料晶格常数的窗口层更高的带隙，这增加了透过窗口的光透射，从而增加了太阳能电池中的电流产生。 假晶材料的质量在窗口和发射极之间保持良好的界面，减少了少数载流子表面复合速度。 提供一种用于构建光伏电池的宽带隙假晶窗口层的方法，所述光伏电池具有与相邻发射极层相差至少1％的固有材料晶格常数。