Study of Back Contacts for CdTe Solar Cells

Study of Back Contacts for CdTe Solar Cells

ZnTe/ZnTe:Cu layer is used as a complex back contact.The parmeters of CdTe solar cells with and without the complex back contacts are compared.The effects of un-doped layer thickness,doped concentration and post-deposition annealing temperature of the complex layer on solar cells preformance are inv...

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Veröffentlicht in:Semiconductor photonics and technology 2003, Vol.9 (2), p.95-98
1. Verfasser: CAIDao-lin ZHENGJia-gui WULi-li FENGLiang-huan ZHANGJing-quan CAIYa-Ping CAIWei LIWei XIAGeng-pei YANQiang
Format: Artikel
Sprache:eng
Schlagworte:
CdTe
复杂静合接点
太阳能电池
碲化镉
转换效率
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Zusammenfassung:ZnTe/ZnTe:Cu layer is used as a complex back contact.The parmeters of CdTe solar cells with and without the complex back contacts are compared.The effects of un-doped layer thickness,doped concentration and post-deposition annealing temperature of the complex layer on solar cells preformance are investigated.The results show that ZnTe/ZnTe:Cu layer can improve back contacts and largely increase the conversion efficiency of CdTe solar cells.Un-doped layer and post-deposition annealing of high temperature can increase open voltage.Using the complex back contact,a small CdTe cell with fill factor of 73.14% and conversion efficiency of 12.93% is obtained.
ISSN:1007-0206