To provide a stacked photovoltaic device including: at least one pair of a first photovoltaic device and a second photovoltaic device stacked in order from a light incident side; and a selective reflection layer formed between the at least one pair of the first photovoltaic device and the second photovoltaic device and adapted to electrically connect therebetween, in which the selective reflection layer has a sheet resistance of 100 k.OMEGA./.quadrature. or more and 100 M.OMEGA./.quadrature. or less.

 
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> Apparatus and method for heating fuel cells

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