Effect of Silicon Nitride coating on the absorptivity Of Mono-Crystalline & Solar Grade Crystalline Silicon Wafers
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2016, Vol 4, Issue 7
Abstract
Industrialization of modern world generates a need for alternative energy. Researches are going on to tap many sources of renewable energy but still increasing the efficiency of these resources remains a challenge. This work presents the effect of absorptivity of silicon wafers by varying the colours of coating. Efficiency of silicon solar cells is considerably affected by the absorption of light and charge collection area. As absorption increases, photocurrent and efficiency increases. To create various colours, silicon wafer were coated with different composition of silicon nitride. This test was conducted in the production line of Indosolar Ltd., Greater Noida. Experiments were performed during the two stages of production, the screen printing process and Plasma Enhanced Chemical Vapour Deposition (PECVD) stage on the equipment manufactured by Schmid Gmbh, Germany. The relation of short circuit current (ISC), open circuit voltage (VOC) and efficiency (ƞ) is analysed with respect to the collection area of the silicon solar cell. A Bruker Alpha - E Spectrometer is used to test the absorption of different surface texture of silicon wafers.
Authors and Affiliations
Apurv Yadav, Bidyut Barman, Abhishek Verma, V. K. Jain
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