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| Keywords: Grain boundary diagram.jpg en A picture of grain boundaries for polysilicon Each grain is crystalline over the width of the grain The grain boundary separates the grains where the adjoining grain is at a different orientation than its neighbor The grain boundary separates regions of different crystal structure thus serving as a center for recombination 'd' here is a characteristic grain size which should be maximized for maximum solar cell efficiency Typical values of d are about 1 micron Own Wlytle1375 2009-04-30 diagram Solar cell schemas and diagrams Grain boundary | ||||
