ORGANIC DOUBLE HETERO STRUCTURED PHOTOVOLTAIC CELL HAVING REVERSE DIRECTION CARRIER EXCITON BLOCKING LAYER

摘要

PROBLEM TO BE SOLVED: To provide organic photosensitive optoelectronic devices having an exciton blocking layer employing reverse direction carrier transport, and transporting holes disassociated at the cathode to the acceptor material.

SOLUTION: A photosensitive cell related to the present invention 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 blocking layer connected between the acceptor-type organic material of the donor-acceptor junction and the cathode. A Fermi level of the cathode is no more than 1 eV higher than the HOMO of the exciton blocking layer.

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