AVS 58th Annual International Symposium and Exhibition
    Energy Frontiers Focus Topic Tuesday Sessions
       Session EN+TF-TuA

Invited Paper EN+TF-TuA9
High Efficiency, Large Area Silicon Thin Film Solar Modules

Tuesday, November 1, 2011, 4:40 pm, Room 108

Session: Thin Films for Solar Cells
Presenter: Liwei Li, ENN Solar Energy Co. Ltd.
Authors: L. Li, ENN Solar Energy Co. Ltd.
T. Guo, ENN Solar Energy Co. Ltd.
Y. Meng, ENN Solar Energy Co. Ltd.
Z. Xu, ENN Solar Energy Co. Ltd.
F. Dai, ENN Solar Energy Co. Ltd.
F. Zhang, ENN Solar Energy Co. Ltd.
W. Li, ENN Solar Energy Co. Ltd.
Z. Lei, ENN Solar Energy Co. Ltd.
C. Cai, ENN Solar Energy Co. Ltd.
H. Li, ENN Solar Energy Co. Ltd.
B. Tang, ENN Solar Energy Co. Ltd.
D. Zhou, ENN Solar Energy Co. Ltd.
Correspondent: Click to Email
Hydrogenated amorphous and microcrystalline silicon based thin film solar cells have long shown great potential for various photovoltaic applications due to its better electricity generation under low light and high temperature, shorter energy payback time and greener manufacturing processes, as well as unique applications for BIPV. However, this technology hasn’t fully realized its market potential, as low module efficiencies at mass-production level being one of the major limiting factors. In this paper we report over 9% stabilized module efficiencies in volume production achieved on 5.7 m2 substrates from a-Si:H/uc-Si:H tandem junction solar modules, which reflects significant efficiency improvement by process tuning of silicon thin films, back contact, and device structure, etc.. Several application case studies are also reported which demonstrate excellent field performance of ENN silicon thin film solar modules.