Stacked Structures for Assembling Multiple Organic Photovoltaic Devices

Abstract

We have prepared semitransparent organic photovoltaic devices for constructing stacked structures. Through the study of the thickness effect of the photoactive layer, we found that sophisticated optimization of device matching was not required for achieving high performance while the subcells were connected in parallel. The results suggest that the stacked structure might be able to provide the other approach for assembling multiple devices while current matching between the subcells cannot be easily obtained. (c) 2012 The Japan Society of Applied Physics