Key technologies for improvement of multicrystalline silicon solar cells investigated at Kyocera are described in this paper. Main key technologies are (1) optimization of emitter structure, (2) reduction of surface reflectance, (3) bulk and surface passivation, and (4) preparation of electrode. Conversion efficiencies of 16.5% and 16.4% have been obtained for multicrystalline silicon solar cells with cell areas of 10 × 10 cm2 and 15 × 15 cm2, respectively, using substrates made by the casting method. Higher conversion efficiencies are expected to be obtained by further investigation of the above-mentioned key technologies.
|Number of pages||20|
|Publication status||Published - 1994 Dec 1|
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