ORGANIC DOUBLE-HETEROSTRUCTURE PHOTOVOLTAIC CELLS HAVING RECIPROCAL-CARRIER EXCITON BLOCKING LAYER

摘要

A photosensitive cell includes an anode and a cathode; a donor-type organic material and an acceptor-type organic material forming a donor-acceptor junction connected between the anode and the cathode; and an exciton blockin g layer connected between the acceptor-type organic material of the do nor- acceptor junction and the cathode, the blocking layer consisting essentially of a material that has a hole mobility of at least 10-7 cm2/V-sec or higher, where a HOMO of the blocking layer is higher than or equal to a HOMO of the acceptor-type material.