Title :
Emitter wrap-through solar cell
Author :
Gee, James M. ; Schubert, W. Kent ; Basore, Paul A.
Author_Institution :
Sandia Nat. Labs., Albuquerque, NM, USA
Abstract :
The authors present a new solar cell concept (emitter wrap-through or EWT) for a back-contact cell. The cell has laser-drilled vias to wrap the emitter on the front surface to contacts on the back surface and uses a potentially low-cost process sequence. Modeling calculations show that efficiencies of 18 and 21% are possible with large-area solar-grade multi- and monocrystalline silicon EWT cells, respectively
Keywords :
electrical contacts; elemental semiconductors; semiconductor device models; silicon; solar cells; 18 percent; 21 percent; Si; back-contact; contacts; emitter wrap-through; front surface; large-area cells; laser-drilled vias; low-cost process; modeling; monocrystalline; multicrystalline; semiconductor; solar cell; Assembly; Crystallization; Laboratories; Laser modes; Metallization; Photovoltaic cells; Silicon; Space technology; Surface emitting lasers; Surface resistance;
Conference_Titel :
Photovoltaic Specialists Conference, 1993., Conference Record of the Twenty Third IEEE
Conference_Location :
Louisville, KY
Print_ISBN :
0-7803-1220-1
DOI :
10.1109/PVSC.1993.347173
