http://electricalandelectronics.org Thu, 14 Jan 2010 20:24:01 +0000 http://wordpress.org/?v=2.9.1 en hourly 1 http://electricalandelectronics.org/2008/11/07/a-model-for-amorphous-solar-cell-analysis/ http://electricalandelectronics.org/2008/11/07/a-model-for-amorphous-solar-cell-analysis/#comments Fri, 07 Nov 2008 14:06:16 +0000 arjun http://electricalandelectronics.org/?p=1005 Abstract In the endeavour to improve conversion efficiency by the effective use of incident light, a detailed model which takes into account such optical processes as transmission, absorption and reflection in the cell has been tried out. By the treatment of an amorphous solar cell as a multilayer interference filter and with suitable choices of antireflection coating materials and thicknesses of the various layers, an increase in the performance characteristics of the cells has been attained. When a double-layer antireflection coating is used, higher efficiencies can be achieved. Efficiencies of about 16% for hydrogenated amorphous silicon (a-Si:H)/ polycrystalline silicon and of about 20% for a-Si:H/polycrystalline germanium tandem-type cells can be obtained. Our work shows that a read more

]]> Abstract In the endeavour to improve conversion efficiency by the effective use of incident light, a detailed model which takes into account such optical processes as transmission, absorption and reflection in the cell has been tried out. By the treatment of an amorphous solar cell as a multilayer interference filter and with suitable choices of antireflection coating materials and thicknesses of the various layers, an increase in the performance characteristics of the cells has been attained. When a double-layer antireflection coating is used, higher efficiencies can be achieved. Efficiencies of about 16% for hydrogenated amorphous silicon (a-Si:H)/ polycrystalline silicon and of about 20% for a-Si:H/polycrystalline germanium tandem-type cells can be obtained. Our work shows that a read more

]]> http://electricalandelectronics.org/2008/11/07/a-model-for-amorphous-solar-cell-analysis/feed/ 0 http://electricalandelectronics.org/2008/11/07/a-low-cost-user-friendly-photovoltaic-cell-curve-tracer/ http://electricalandelectronics.org/2008/11/07/a-low-cost-user-friendly-photovoltaic-cell-curve-tracer/#comments Fri, 07 Nov 2008 13:28:53 +0000 arjun http://electricalandelectronics.org/?p=984 Abstract Hardware and software studies strongly indicate that the feasibility of commercially producing A low cost, user-friendly photovoltaic cell curve tracer.The instrument will be used in conjunction with an IBM compatible PC.or a MAC and a printer.The system will print out a J versus V curve and compute various parameters/The author hope to market this instrument in near future. Download Share and Enjoy: read more

]]> Abstract Hardware and software studies strongly indicate that the feasibility of commercially producing A low cost, user-friendly photovoltaic cell curve tracer.The instrument will be used in conjunction with an IBM compatible PC.or a MAC and a printer.The system will print out a J versus V curve and compute various parameters/The author hope to market this instrument in near future. Download Share and Enjoy: read more

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