Stacked organic photosensitive devices

Details Stacked organic photosensitive devices Stacked organic photosensitive devices

2011-03-29

2011-03-29

Ho, Hoang-Quan T (Department: 2818)

Active solid-state devices (e.g., transistors, solid-state diode

Responsive to non-electrical signal

Electromagnetic or particle radiation

C257S040000, C257SE25009, C257SE51017, C257SE51039, C257SE51042, C438S082000, C136S263000, C136S265000

Reexamination Certificate

active

07915701

ABSTRACT:
A device is provided having a first electrode, a second electrode, a first photoactive region having a characteristic absorption wavelength λ1and a second photoactive region having a characteristic absorption wavelength λ2. 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 λ1is at least about 10% different from λ2. 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.

REFERENCES:
patent: 6352777 (2002-03-01), Bulovic et al.
patent: 7326955 (2008-02-01), Forrest et al.
patent: 7375370 (2008-05-01), Forrest et al.
patent: 2003/0042846 (2003-03-01), Forrest et al.
patent: 2005/0224113 (2005-10-01), Xue et al.
patent: 2005/0224905 (2005-10-01), Forrest et al.
patent: 2006/0060239 (2006-03-01), Peumans et al.
Yakimov et al. High photovoltage multiple-heterojunction organic solar cells incorporating interfacial metallic nanoclusters. Mar. 4, 2002. Applied Physics Letters. vol. 80, No. 9. Ps. 1667-1669.
Hiramoto et al. p-i-n like behavior in three-layered organic solar cells having a co-deposited interlayer of pigments. Oct. 15, 1992. J. Appl. Phys., vol. 72, No. 8. pp. 3781-3787.
Hiramoto et al. Three-layered organic solar cell witha photactive interlayer of codeposited pigments. Mar. 11, 1991. Appl. Phys. Lett. 58 (10). pp. 1062-1064.
Xue et al. A Hybrid Planar-Mixed Molecular Heterojunction Photovoltaic Cell. Jan. 6, 2005. Adv. Mater. vol. 17, Issue 1. pp. 66-71.

Affiliated with

Also associated with

Rating

Stacked organic photosensitive devices does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Stacked organic photosensitive devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stacked organic photosensitive devices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2733498