Photoelectric conversion module and manufacturing method thereof

摘要

A photoelectric conversion module in which an output voltage defect is suppressed is obtained by forming in parallel over a substrate n number (n is a natural number) of integrated photoelectric conversion devices each including a plurality of cells that are connected in series, and electrically connecting in parallel n−1 number or less of integrated photoelectric conversion devices with normal electrical characteristics and excluding an integrated photoelectric conversion device with a characteristic defect such as a short-circuit between top and bottom electrodes or a leak current due to a structural defect or the like formed in a semiconductor layer or the like.

主权项

1. A manufacturing method of a photoelectric conversion module, comprising the steps of:
forming n number of photoelectric conversion devices with an integrated structure containing first electrodes, island-shaped semiconductor layers comprising an intrinsic semiconductor layer, and second electrodes over a substrate, wherein n is a natural number; obtaining electrical characteristics of the n number of photoelectric conversion devices; determining good products and defective products from the electrical characteristics of the n number of photoelectric conversion devices according to a design specification; selecting n−1 number or less of photoelectric conversion devices corresponding to the good products; forming an insulating film to cover the n number of photoelectric conversion devices; forming a pair of conductive layers over both ends of the n number of photoelectric conversion devices with the insulating film interposed therebetween; and irradiating the pair of conductive layers with a laser light, whereby a pair of electrodes of the photoelectric conversion module is formed and electrically connected to each of the first electrodes and the second electrodes of the selected photoelectric conversion devices in parallel.