HIGH EFFICIENCY ORGANIC PHOTOVOLTAIC CELLS EMPLOYING HYBRIDIZED MIXED-PLANAR HETEROJUNCTIONS
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United States of America Patent
Stats
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N/A
Issued Date -
N/A
app pub date -
Apr 24, 2015
filing date -
Apr 13, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A device is provided, having a first electrode, a second electrode, and a photoactive region disposed between the first electrode and the second electrode. The photoactive region includes a first photoactive organic layer that is a mixture of small molecule organic acceptor material and a small molecule organic donor material, wherein the first photoactive organic layer has a thickness not greater than 0.8 characteristic charge transport lengths; a second photoactive organic layer in direct contact with the first organic layer, wherein the second photoactive organic layer is an unmixed layer of the small molecule organic acceptor material of the first photoactive organic layer, and the second photoactive organic layer has a thickness not less than about 0.1 optical absorption lengths; and a third photoactive organic layer disposed between the first electrode and the second electrode and in direct contact with the first photoactive organic layer. The third photoactive organic layer is an unmixed layer of the small molecule organic donor material of the first photoactive organic layer and has a thickness not less than about 0.1 optical absorption lengths.
First Claim
Other Claims data not available