By Bruno Ceccaroli, Eivind Ovrelid, Sergio Pizzini
Polycrystalline silicon (commonly referred to as "polysilicon") is the fabric of selection for photovoltaic (PV) purposes. Polysilicon is the purest artificial fabric out there, notwithstanding its processing via fuel purification and decomposition (commonly referred to as "Siemens" method) incorporates excessive environmental probability. whereas many present optoelectronic purposes require excessive purity, PV functions don't and as a result exchange techniques and fabrics are being explored for PV grade silicon. sun Silicon procedures: applied sciences, demanding situations, and possibilities experiences present and capability destiny processing applied sciences for PV purposes of sun silicon. It describes replacement strategies and problems with fabric purity, rate, and environmental effect. It covers limits of silicon use with appreciate to high-efficiency sun cells and demanding situations bobbing up from R&D actions. The e-book additionally defines purity standards and purification procedures of metallurgical grade silicon (MG-Si) and examines creation of sunlight grade silicon via novel tactics without delay from MG-Si and/or by way of decomposition of silane gasoline in a fluidized mattress reactor (FBR). moreover, the book:
Analyzes prior study and business improvement of inexpensive silicon procedures in view of figuring out destiny tendencies during this field.
Discusses demanding situations and chance of luck of assorted sun silicon processes.
Covers strategies which are extra environmentally sensitive.
Describes limits of silicon use with recognize to high-efficiency sun cells and demanding situations bobbing up from R&D activities.
Defines purity requisites and purification methods of MG-Si.
Examines construction of sun grade silicon without delay from MG-Si.
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Additional info for Solar Silicon Processes: Technologies, Challenges, and Opportunities
Binetti, 2011. Effects of lowtemperature annealing on polycrystalline silicon for solar cells, Sol. Energy Mater. Sol. Cells, 95(2), 559–563. T. Buonassisi et al. 2006.
If the specific resistivity does not stay within a suitable range, a strong negative impact on solar cell efficiency should be expected. 0 ppma P/Rc = inf. 13 Resistivity profile along the ingot for different values of the compensation ratio. (Reproduced with permission of CRC Press after M. , Silicon-based photovoltaics, in Handbook of Silicon Photonics, L. Vivien and L. , CRC Press, 2013, p. ) Different studies have been published on majority carrier mobility characterization in compensated silicon, based on techniques such as the Hall effect [115–121], free carrier absorption , electrochemical capacitance voltage [119,122,123] or Fe-acceptor pairing .
Daryan, T. Geipel, H. Hoehne, and J. Berghold, 2010. Potential induced degradation of solar cells and panels, in 35th IEEE Photovoltaic Specialists Conference, Honolulu, Hawaii, pp. 002817–002822. 14. P. Hacke, K. Terwilliger, S. Glick, D. Trudell, N. Bosco, S. Johnston, and S. Kurtz, 2010. Test-to-failure of crystalline silicon modules, in 35th IEEE Photovoltaic Specialist Conference, Honolulu, Hawaii, pp. 244–250. B. Ceccaroli and S. Pizzini, 2012. Processes, in Advanced Silicon Materials for Photovoltaic Applications, S.