发明申请
WO2012057874A1 MULTI-JUNCTION SOLAR CELL WITH DILUTE NITRIDE SUB-CELL HAVING GRADED DOPING
审中-公开
基本信息:
- 专利标题： MULTI-JUNCTION SOLAR CELL WITH DILUTE NITRIDE SUB-CELL HAVING GRADED DOPING
- 专利标题（中）：多功能太阳能电池与具有分级掺杂的稀释氮化物细胞
- 申请号：PCT/US2011/036486 申请日：2011-05-13
- 公开(公告)号：WO2012057874A1 公开(公告)日：2012-05-03
- 发明人： MISRA, Pranob , JONES-ALBERTUS, Rebecca Elizabeth , LIU, Ting , FUSHMAN, Ilya , YUEN, Homan Bernard
- 申请人： SOLAR JUNCTION CORPORATION , MISRA, Pranob , JONES-ALBERTUS, Rebecca Elizabeth , LIU, Ting , FUSHMAN, Ilya , YUEN, Homan Bernard
- 申请人地址： 401 Charcot Ave. San Jose, California 95131 US
- 专利权人： SOLAR JUNCTION CORPORATION,MISRA, Pranob,JONES-ALBERTUS, Rebecca Elizabeth,LIU, Ting,FUSHMAN, Ilya,YUEN, Homan Bernard
- 当前专利权人： SOLAR JUNCTION CORPORATION,MISRA, Pranob,JONES-ALBERTUS, Rebecca Elizabeth,LIU, Ting,FUSHMAN, Ilya,YUEN, Homan Bernard
- 当前专利权人地址： 401 Charcot Ave. San Jose, California 95131 US
- 代理机构： ALLEN, Kenneth, R. et al.
- 优先权： US12/914,710 20101028
- 主分类号： H01L31/00
- IPC分类号： H01L31/00
摘要：
A lattice-matched solar cell having a dilute nitride-based sub-cell has exponential doping to thereby control current-carrying capacity of the solar cell. Specifically a solar cell with at least one dilute nitride sub-cell that has a variably doped base or emitter is disclosed. In one embodiment, a lattice matched multi-junction solar cell has an upper subcell, a middle sub-cell and a lower dilute nitride sub-cell, the lower dilute nitride sub-cell having doping in the base and/or the emitter that is at least partially exponentially doped so as to improve its solar cell performance characteristics. In construction, the dilute nitride subcell may have the lowest bandgap and be lattice matched to a substrate, the middle cell typically has a higher bandgap than the dilute nitride sub-cell while it is lattice matched to the dilute nitride sub-cell. The upper sub-cell typically has the highest bandgap and is lattice matched to the adjacent sub-cell.
摘要（中）：
具有稀氮化物基子电池的晶格匹配太阳能电池具有指数掺杂，从而控制太阳能电池的载流能力。 具体地说，公开了具有至少一个具有可变掺杂的基极或发射极的稀氮氮化物子电池的太阳能电池。 在一个实施例中，晶格匹配多结太阳能电池具有上部子电池，中间子电池和下部稀土氮化物子电池，下部稀土氮化物子电池在基极和/或发射极中具有掺杂， 至少部分指数掺杂，以改善其太阳能电池性能特征。 在构造中，稀氮氮化物子电池可以具有最低的带隙并且与衬底晶格匹配，中间电池通常在稀氮化物子电池的晶格匹配时具有比稀氮氮化物子电池更高的带隙。 上部子单元通常具有最高的带隙并且与相邻的子单元格子匹配。