Photovoltaic device and solar cell string including photovoltaic devices

摘要

A photovoltaic device (10) includes: a p-type diffusion region (11) and an n-type diffusion region (12) on the backside of a semiconductor substrate (1); electrodes (4, 5); and a wiring board (8). The electrodes (4) are disposed on the p-type diffusion region (11), and the electrodes (5) are disposed on the n-type diffusion region (12). The wiring board (8) includes a wire group (82) connected to the electrodes (4, 6) by conductive adhesion layers (7) and a wire group (83) connected to the electrodes (5) by conductive adhesion layers (7). The photovoltaic device (10) includes at least one of a first structure in which a plurality of electrodes (50) includes at least a pair of adjacent electrodes connected to a single wire and a second structure in which a plurality of electrodes (40) includes at least a pair of adjacent electrodes connected to a single wire.