Material and solar cell research in high efficiency micromorph tandem solar cell
Publish place: International Conference on New Research Findings in Electrical Engineering and Computer Science
Publish Year: 1394
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
COMCONF01_854
تاریخ نمایه سازی: 8 آذر 1394
Abstract:
Micromorph tandem solar cells consisting of a microcrystalline silicon bottom cell and an amorphous silicon top cell are considered as one of the most promising new thin-film silicon solar-cell concepts. Their promise lies in the hope of simultaneously achieving high conversion efficiencies at relatively low manufacturing costs. The concept was introduced by IMT Neuchâtel, based on the VHF-GD (very high frequency glow discharge) deposition method. The key element of the micromorph cell is the hydrogenated microcrystalline silicon bottom cell that opens new perspectives for low-temperature thin-film crystalline silicon technology. This paper describes the use, within p–i–n- and n–i–p-type solar cells, of hydrogenated amorphous silicon (a-Si:H) and hydrogenated microcrystalline silicon (_c-Si:H) thin films (layers), both deposited at low temperatures (200_C) by plasma-assisted chemical vapour deposition (PECVD), from a mixture of silane and hydrogen. Optical and electrical properties of the i-layers are described. Finally, present performances and future perspectives for a high efficiency ‘micromorph’ (mc-Si:Hya-Si:H) tandem solar cells are discussed.
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Authors
Razagh Hafezi
and Young Researcher Elite Club, Bandar Abbas branch, Islamic Azad University, Bandar Abbas, Iran
Sharie Jamalzae
Electrical Department, Islamic Azad university of Shiraz, Shiraz, Iran,
Soroush Karimi
Electrical Department, Islamic Azad university of Shiraz, Shiraz, Iran,
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