| 摘要 |
PURPOSE:To prevent leakage in an amorphous semiconductor layer and to stabilize and improve the manufacturing yield, by providing a metal layer on the amorphous semiconductor layer, the metal layer containing a thermosetting resin between metal particles. CONSTITUTION:In a solar cell comprising a light-transmitting substrate 1, a light- transmitting conducting film 2, an amorphous semiconductor layer 3 and a metal layer 4, the lighttransmitting conducting film 2 is formed of a metal oxide on the light-transmitting substrate 1 and provides a first electrode. The amorphous semiconductor layer 3 is for example an amorphous silicon layer with PIN junction and deposited on the lighttransmitting conducting film 2. The metal layer 4 is a layer of cured conductive paste formed by adhering a conductive paste on the amorphous semiconductor layer 3 by a thick-film technique such as screen printing, application or the like. The conductive paste consists of metal powder a thermosetting resin of epoxy-, phenol-or acryl-type and a solvent, the metal powder being principally composed of at least one selected from the group consisting of silver, copper, nickel, aluminum, lead and tin, Preferably, average particle size of the metal powder is 0.01-50mum. If it is smaller than 0.01mum, such metal powder enters into pinholes, resulting in shortcircuit. |
