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Photovoltaics - IPHT Jena

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without contact<br />

with contact<br />

- 49 -<br />

Fig. 7.3: band diagram of a pin-type solar cell. Above:<br />

before conatct of differently doped regions, below: after<br />

contact<br />

p-type<br />

n-type<br />

nominally<br />

undoped<br />

Fig. 7.4: Influence of doping gas concemtration<br />

during CVD of amorphous silicon on conductivity<br />

7 Types of Solar Cells II: Thin Film Cells F. Falk, <strong>Photovoltaics</strong> WS 2010/11

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