Organic hybrid planar-nanocrystalline bulk heterojunctions
US7897429B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 20, 2006 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Feb 18, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.