Organic photosensitive optoelectronic device with an exciton blocking layer
An organic photosensitive optoelectronic device having a plurality of cells disposed between a first electrode and a second electrode. Each cell includes a photoconductive organic hole transport layer adjacent to a photoconductive organic electron transport layer. A metal or metal substitute is disposed between each of the cells. At least one exciton blocking layer is disposed between the first electrode and the second electrode.
1 . An organic photosensitive optoelectronic device comprising:
a first electrode and a second electrode;
a plurality of cells disposed between the first electrode and the second electrode, each cell comprising a photoconductive organic hole transport layer adjacent to a photoconductive organic electron transport layer;
a metal or metal substitute disposed between each of the cells; and
at least one exciton blocking layer disposed between the first electrode and the second electrode.
2 . The organic photosensitive optoelectronic device of claim 1 , wherein the metal or metal substitute is an elementally pure metal.
3 . The organic photosensitive optoelectronic device of claim 1 , wherein the metal or metal substitute is a metal alloy.
4 . The organic photosensitive optoelectronic device of claim 1 , wherein the metal or metal substitute is a transparent conducting oxide.
5 . The organic photosensitive optoelectronic device of claim 1 , wherein the metal or metal substitute is a transparent conductive polymer.
6 . The organic photosensitive optoelectronic device of claim 1 , wherein the metal or metal substitute disposed between a pair of the cells forms an electrode.
7 . The organic photosensitive optoelectronic device of claim 1 , wherein the metal or metal substitute disposed between a pair of the cells forms a charge transfer layer.
8 . The organic photosensitive optoelectronic device of claim 1 , wherein the plurality of cells are electrically connected in series.
9 . The organic photosensitive optoelectronic device of claim 1 , wherein the plurality of cells are electrically connected in parallel.
10 . The organic photosensitive optoelectronic device of claim 1 , wherein the plurality of cells are electrically connected in a combination of parallel and series.