Organic hybrid planar-nanocrystalline bulk heterojunctions

Patent · Tue Mar 01 04:00:00 EST 2011

OSTI ID:1016554

Forrest, Stephen R ^[1]; Yang, Fan ^[2]

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1. Ann Arbor, MI
2. Piscataway, NJ

A photosensitive optoelectronic device having an improved hybrid planar bulk heterojunction includes a plurality of photoconductive materials disposed between the anode and the cathode. The photoconductive materials include a first continuous layer of donor material and a second continuous layer of acceptor material. A first network of donor material or materials extends from the first continuous layer toward the second continuous layer, providing continuous pathways for conduction of holes to the first continuous layer. A second network of acceptor material or materials extends from the second continuous layer toward the first continuous layer, providing continuous pathways for conduction of electrons to the second continuous layer. The first network and the second network are interlaced with each other. At least one other photoconductive material is interspersed between the interlaced networks. This other photoconductive material or materials has an absorption spectra different from the donor and acceptor materials.

• Research Organization: The Trustees of Princeton University (Princeton, NJ); The University of Southern California (Los Angeles, CA)
• Sponsoring Organization: USDOE
• Assignee: The Trustees of Princeton University (Princeton, NJ); The University of Southern California (Los Angeles, CA)
• Patent Number(s): 7,897,429
• Application Number: US Patent Application 11/561,448
• OSTI ID: 1016554
• Country of Publication: United States
• Language: English

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