Batteries: thermoelectric and photoelectric – Photoelectric – Cells
Reexamination Certificate
2007-01-02
2007-01-02
Nguyen, Nam (Department: 1753)
Batteries: thermoelectric and photoelectric
Photoelectric
Cells
C136S256000, C136S250000, C136S291000, C136S252000, C257S040000, C257S043000, C257S431000, C257S461000, C257S464000, C257S465000, C438S063000, C438S082000, C438S085000, C438S098000
Reexamination Certificate
active
10535561
ABSTRACT:
A bi-layer photovoltaic cell, and method (100) of making same, with an electric field applied at the p-n heterojunction interface. The cell includes a first semiconductor layer including a binder, nanocrystals of an n-type semiconductor, and spatially bound cations and a second semiconductor layer contacting the first semiconductor layer that includes a binder, nanocrystals of a p-type semiconductor, and spatially bound anions. The cell further includes a p-n heterojunction at the contacting interface between the first and second semiconductor layers. An electric field is created by the spatially bound cations and anions that are located in the layers proximal to the p-n heterojunction. The nanocrystals are single crystals of organic semiconductors that are less than 50 nanometers in size and that comprise a majority of the volume of their respective layers. The binder is a polymer matrix, such as an epoxy. The cell includes electrical contacts abutting the semiconductor layers.
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Fick Anthony
Midwest Research Institute
Nguyen Nam
White Paul J.
LandOfFree
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