Stacked organic photosensitive devices
Abstract
A device is provided having a first electrode, a second electrode, a first photoactive region having a characteristic absorption wavelength .lamda..sub.1 and a second photoactive region having a characteristic absorption wavelength .lamda..sub.2. The photoactive regions are disposed between the first and second electrodes, and further positioned on the same side of a reflective layer, such that the first photoactive region is closer to the reflective layer than the second photoactive region. The materials comprising the photoactive regions may be selected such that .lamda..sub.1 is at least about 10% different from .lamda..sub.2. The device may further comprise an exciton blocking layer disposed adjacent to and in direct contact with the organic acceptor material of each photoactive region, wherein the LUMO of each exciton blocking layer other than that closest to the cathode is not more than about 0.3 eV greater than the LUMO of the acceptor material.
- Inventors:
- Issue Date:
- Research Org.:
- Princeton Univ., NJ (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1176169
- Patent Number(s):
- 7196366
- Application Number:
- 10/911,559
- Assignee:
- The Trustees of Princeton University (Princeton, NJ)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 14 SOLAR ENERGY
Citation Formats
Forrest, Stephen, Xue, Jiangeng, Uchida, Soichi, and Rand, Barry P. Stacked organic photosensitive devices. United States: N. p., 2007.
Web.
Forrest, Stephen, Xue, Jiangeng, Uchida, Soichi, & Rand, Barry P. Stacked organic photosensitive devices. United States.
Forrest, Stephen, Xue, Jiangeng, Uchida, Soichi, and Rand, Barry P. Tue .
"Stacked organic photosensitive devices". United States. https://www.osti.gov/servlets/purl/1176169.
@article{osti_1176169,
title = {Stacked organic photosensitive devices},
author = {Forrest, Stephen and Xue, Jiangeng and Uchida, Soichi and Rand, Barry P.},
abstractNote = {A device is provided having a first electrode, a second electrode, a first photoactive region having a characteristic absorption wavelength .lamda..sub.1 and a second photoactive region having a characteristic absorption wavelength .lamda..sub.2. The photoactive regions are disposed between the first and second electrodes, and further positioned on the same side of a reflective layer, such that the first photoactive region is closer to the reflective layer than the second photoactive region. The materials comprising the photoactive regions may be selected such that .lamda..sub.1 is at least about 10% different from .lamda..sub.2. The device may further comprise an exciton blocking layer disposed adjacent to and in direct contact with the organic acceptor material of each photoactive region, wherein the LUMO of each exciton blocking layer other than that closest to the cathode is not more than about 0.3 eV greater than the LUMO of the acceptor material.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2007},
month = {3}
}
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