The high efficiency and stabilized properties of solar cell modules are very important for solar farm applications. In order to make high efficiency a-Si:H/uc-Si:H tandem solar cell modules, we optimized the property of each single layer such as amorphous intrinsic layer, intermediate reflective layer and microcrystalline intrinsic layer, n doped amorphous layer between microcrystalline i/n layer and employed the two-step growth method of low pressure chemical vapor deposition(LPCVD) process to fabricate the ZnO:B-TCO film etc. After optimization of the Si base solar module processes, the conversion efficiency of 11.87% can be achieved. The degradations of Si Base solar modules have been also investigated under light soaking and other various measurement conditions. The lower degradations of 5 - 7% drop in conversion efficiency have been obtained. On other hand, the Si base thin film modules for building integrated with photovoltaics (BIPV) applications have been developed. Such as the photovoltaic curtain wall, fence, sunroof, street lamps, pumps have been fabricated, and the solar farm with remote monitoring systems of solar farms have also been installed.
Hunan Gongchuang Photovoltaic Science and Technology Co
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