DocumentCode :
413456
Title :
High efficiency amorphous/microcrystalline silicon solar cell fabricated on metal substrate
Author :
Sriprapa, Kobsak ; Sichanugrist, Porponth
Author_Institution :
Energy Technol. Center, Nat. Sci. & Technol. Dev. Agency, Pathumthani, Thailand
Volume :
3
fYear :
2003
fDate :
18-18 May 2003
Firstpage :
2799
Abstract :
High efficiency amorphous/microcrystalline silicon solar cell fabricated on stainless steel substrate have been developed by using a multi-chamber system in which all layers can be deposited without breaking the pressure on 30 cm/spl times/40 cm area. The detailed cell structure is hot Ag/ZnO/n(/spl mu/c-Si)-i(/spl mu/c-Si)-p(a-Si) or p(/spl mu/c-Si)/ZnO/n(/spl mu/c-Si)-i(a-Si)-p(/spl mu/c-Si)/ITO. New type of electrode has been developed in order to achieve good film uniformity. It was found that the microcrystalline bottom cell with thicker n(/spl mu/c-Si) layer fabricated by VHF shows better cell performance. Higher frequency of VHF is more preferred. By optimizing p(/spl mu/c-Si) and the interface of bottom cell and the intermediate ZnO, an initial efficiency of 14.5% (Voc=1.49 V, Jsc=13.7 mA/cm/sup 2/, FF=0.711) has been achieved on 3 cm/sup 2/ active cell area . The prototype module with module efficiency of 8% has been achieved.
Keywords :
II-VI semiconductors; absorption coefficients; amorphous semiconductors; electrochemical electrodes; elemental semiconductors; indium compounds; metallic thin films; modules; semiconductor thin films; silicon; silver; solar cells; zinc compounds; 1.49 V; Ag-ZnO-Si; Si-ZnO-Si-ITO; Si-ZnO-Si-InSnO; cell structure; electrode; high efficiency amorphous-microcrystalline silicon solar cell; metal substrate; microcrystalline bottom cell; multichamber system; optimization; prototype module; stainless steel substrate;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Photovoltaic Energy Conversion, 2003. Proceedings of 3rd World Conference on
Conference_Location :
Osaka, Japan
Print_ISBN :
4-9901816-0-3
Type :
conf
Filename :
1305169
Link To Document :
بازگشت