Stacked organic photosensitive optoelectronic devices with an electrically parallel configuration
First Claim
1. A parallel stacked organic photosensitive optoelectronic device comprising:
- a substrate having a proximal surface and a distal surface; and
a plurality of organic photosensitive optoelectronic subcells, each subcell having a transparent cathode and a transparent anode, said subcells in superposed relation with each other and with said proximal surface of said substrate, wherein said plurality of organic photosensitive optoelectronic subcells are electrically connected to each other in parallel.
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Abstract
A stacked organic photosensitive optoelectronic device optimized to enhance desired characteristics such as external quantum efficiency and current. The photosensitive optoelectronic device has a plurality of photosensitive optoelectronic subcells electrically configured in parallel. The substrate may be the bottom electrode or there may be a bottom electrode distinct from the substrate. Each subcell comprises one or more organic photoconductive layers between electrode layers. The thicknesses of the subcells and the total number of subcells may be selected, for example, so as to maximize the external quantum efficiency of a stacked solar cell. In one embodiment the top electrode is transparent. In other embodiments two or more electrodes are transparent. In other embodiments photosensitive optoelectronic devices with multilayer photoconductive structures and photosensitive optoelectronic devices with a reflective layer or a reflective substrate are disclosed.
206 Citations
27 Claims
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1. A parallel stacked organic photosensitive optoelectronic device comprising:
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a substrate having a proximal surface and a distal surface; and
a plurality of organic photosensitive optoelectronic subcells, each subcell having a transparent cathode and a transparent anode, said subcells in superposed relation with each other and with said proximal surface of said substrate, wherein said plurality of organic photosensitive optoelectronic subcells are electrically connected to each other in parallel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification