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Low-cost high efficiency solar cells are the key to achieving grid parity with photovoltaic devices. Laser processing in silicon photovoltaics is being incorporated at various stages to achieve this target. This paper details the fabrication, characterization and analysis of 4 cm2 screen printed cells with efficiency over 20% achieved using a UV laser ablation for selective opening of rear dielectric...
Low-cost high efficiency solar cells are the key to achieving grid parity with photovoltaic devices. This paper details the fabrication, characterization and analysis of 4 cm2 screen printed cells with efficiency over 20% achieved using a local back surface field cell structure in conjunction with a 75 ohm/sq emitter and efficient back surface reflector. A streamlined process sequence involving a...
Commercial silicon solar cell efficiencies have been improving consistently over the last few years with the implementation of novel techniques. Along with larger wafer area and thinner substrates, low-cost processing of high efficiency solar cells can help achieve grid parity using crystalline silicon. In this work, large area cells were fabricated using conventional diffusion, oxidation and screen...
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