Organic photovoltaic device having a lateral charge transport channel
AssigneeThe Regents of the University of Michigan
InventorsStephen Forrest, Quinn Burlingame, Caleb Coburn
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Abstract
Organic photovoltaic cells (OPVs) and their compositions are described herein. In one or more embodiments, the OPV or solar cell includes a first electrode (e.g., cathode); a second electrode (e.g., anode); an active layer positioned between the first electrode and the second electrode; and a channel layer positioned between the first electrode and the active layer, wherein the channel layer is configured to laterally disperse a charge across the channel layer. In certain examples, the first electrode is arranged in a grid structure having a plurality of electrode segments and a respective opening between adjacent segments of the first electrode.
Claims17
An optoelectronic device, comprising:
- an anode;
- a cathode arranged in a grid structure having a plurality of electrode segments and a respective opening between adjacent segments of the cathode;
- an active layer positioned between the anode and the cathode, the active layer comprising at least one organic donor material and at least one acceptor material;
- and
- a channel layer positioned between the cathode and the active layer, wherein the channel layer is configured to laterally disperse a charge across the channel layer;
- an electron blocking layer positioned between the channel layer and the cathode, in direct contact with the channel layer and the cathode;
- wherein an interface between the active layer and the channel layer has an energy barrier of at least 0.1 eV, configured to confine electrons within the channel layer.
Dependencies are inferred from the claim text.