Near infra-red composite polymer-nanocrystal materials and...

Optical waveguides – Miscellaneous

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C385S141000, C438S029000, C372S038050, C372S043010, C372S044011, C257S042000, C257S079000

Reexamination Certificate

active

10837095

ABSTRACT:
The invention comprises a composite material comprising a host material in which are incorporated semiconductor nanocrystals. The host material is light-transmissive and/or light-emissive and is electrical chargetransporting thus permitting electrical charge transport to the core of the nanocrystals. The semiconductor nanocrystals emit and/or absorb light in the near infrared spectral range. The nanocrystals cause the composite material to emit/absorb energy in the near infrared (NIR) spectral range, and/or to have a modified dielectric constant, compared to the host material. The invention further comprises electro-optical devices composed of this composite material and a method of producing them. Specifically described are light emitting diodes that emit light in the NIR and photodetectors that absorb light in the same region.

REFERENCES:
patent: 6049090 (2000-04-01), Clark, Jr.
patent: 6239355 (2001-05-01), Salafsky
patent: 6306610 (2001-10-01), Bawendi et al.
patent: 6319426 (2001-11-01), Bawendi et al.
patent: 6456423 (2002-09-01), Nayfeh et al.
patent: 6501091 (2002-12-01), Bawendi et al.
patent: 6872450 (2005-03-01), Liu et al.
patent: 6872471 (2005-03-01), Epstein et al.
patent: 6961499 (2005-11-01), Lee et al.
patent: 2002/0071948 (2002-06-01), Duff et al.
patent: 2004/0023010 (2004-02-01), Bulovic et al.
patent: 2005/0020923 (2005-01-01), Frangioni et al.
patent: 2005/0192430 (2005-09-01), Rosenthal et al.
patent: 2005/0236556 (2005-10-01), Sargent et al.
patent: 2006/0065943 (2006-03-01), Hill
patent: WO 02/25745 (2002-03-01), None
Yong-Chun et al. “Study of Luminescence of Organic Thin Films Using Field Emitter Arrays.” Proceedings of the 5th Asian Symposium. Mar. 17-19. pp. 19-23.
Weck, Marcus. “Less Expensive Displays: New Technique Allows Polymer Processing of a Key Soild-State Fluorescent Material.” Georgia Institute of Technology Reseach News. Mar. 27, 2003.
Friend R.H. “Conjugated Polymers: New Materials for Optoelectronic Devices.” Pure Applied Chemistry, vol. 73, No. 3, pp. 425-430, 2001.
A- Dodahalapm; Z. Buo, A. Makhila, J. Lagmndanum, V. Raja, Y. Feng, H. Katz and J. Rogers, “Organic smart pixels”, Appl. Phys. Lett., vol. 73, pp. 142-144, 1998.
Y. Cao, I.D. Parker, G. Yu, C. Zhun, A.J. Heeger, “Improved quantum efficiency for electroluminescence in semiconducting polymers”, Nature, vol. 397, pp. 414-417,1999.
P.K.H. Ho, D.S. Thomas, R.H. Friend, N. Tessler, “All-polymer optoelectronic devices”, Science, vol. 285, pp. 233-236, 1999.
Y.W. Cao and U. Banin, “Growth and Properties of Semiconductor Core/Shell Nanocrystals with InAs Cores” J. Am. Chem. Soc, vol. 122, pp. 9692-9702, 2000.
R.J. Curry, W. P. Gillin,“1.54 mm electroluminescence from erbium (III) Tris-8-hydroxyquinoline (ErQ) based organic light-emitting diodes”, Appl. Phys. Lett., vol. 75, pp. 1380-1382, 1999.
L. Slooff, A. Polman, F. Cacialli, R. Friend, G. Hebbink, F. van Veggel, D. Reinhoudt, “Near-infrared electroluminescence of polymer light-emitting diodes doped with a lissamine-sensitized Nd3+ complex”, Appl Phys. Lett., vol. 78, pp. 2122-2124,2001.
Y. Kawamura, Y. Wada, M. Iwamuro, T. Ktamura, S. Yanagida, “Near-infrared electrolu anescence from ytterbium(iii) complex”, Chem. Lett., pp. 280-281, 2000.
L.H. Slooff; A. Polman, M.P. Oude Wolbers, F.C.J.M. van Veggel, D.N. Reinhoudt, J.W. Hofstraat, “Optical properties of erbium-doped organic polydentate cage complexes”, J. Appl. Phys., vol. 83, pp. 497-503, 1998.
M.A. Baldo, M.E. Thompson, S.R. Forrest, “High-efficiency fluorescent organic light-emitting devices using a phosphorescent sensitizer”, Nature, vol. 403, pp. 750-753, 2000.
P.K.H. Ho, J.S. Kim, J.H. Burroughes, H. Becker, S.F.Y. Li, T.M. Brown, F. Cacialli, R.H. Friend, Molecular-scale interface engineering for polymer light-emitting diodes, Nature, vol. 404, pp. 481-484,2000.
V.L. Colvin, M.C. Schlamp, A.P. Alivisatos, “Light-Emitting Diodes Made from Cadmium Sclenide Nanocrystals and a Semiconducting Polymer”, Nature, vol. 370, pp. 354-357, 1994.
B.O. Dabbousi, M.G. Bawendi, O. Onitsuka, M.F. Rubner, “Electroluminescence from CdSe Quantum-Dot Polymer Composites”, Appl. Phys. Lett., vol. 66, pp. 1316-1318,1995.
M.C. Schlamp, X..G. Peng, A.P. Alivisatos, “Improved efficiencies in light emitting diodes made with CdSe(CdS) core/shell type nanocrystals and a semiconducting polymer” J. Appl. Phys., vol. 82, pp. 5837-5842,1997.
H. Mattoussi, L. H. Radzilowski, “Electrolummcscence from m heterostructures of poly(phenylene vinylene) and inorganic CdSe nanocrystals”, J. Appl. Phys., vol. 83, pp. 7965-7974, 1998.
A. Mews, A. Eychmuller, M. Giersig, D. Schooss, H. Weller, “Preparation, Characterization and Photophysics of the Quantum-Dot Quantum-Well System CdS/HgS/CdS”, J. Phys. Chem., vol. 98, pp. 934-941, 1994.
X.G. Peng, MC. Schlamp, A.V. Kadavanich, A.P. Alivisatos, “Epitaxial growth of highly luminescent CdSe/CdS core/shell nanocrvstals with photostability and electronic accessibility”, J. Am. Chem. Soc., vol. 119, pp. 7019-7029, 1997.
B.O. Dabbousi, J. RodriguezViejo, F.V. Mikulec, J.R. Heine, H. Mattoussi, R. Ober, K.F. Jensen, M.G. Bawendi, “CdSe)ZnS core-shell quantum dots: Synthesis and characterization of a size series of highly luminescent nanocrystallites”, J. Phys. Chem. B., vol. 101, pp. 9463-9475, 1997.
S.V. Kershaw, M. Burt, M. Harrison, A. Rogach, H. Weller, A. Eychmuller, “Colloidal CdTe/HgTe quantum dots with high photoluminescence quantum efficiency at room temperature”, Appl. Phys. Lett., vol. 75, pp. 1694-1696,1999.
M.T. Harrison, S. V. Kershaw, A. L. Rogach, A. Kornowski, A. Eychmuller, H. Weller, “Wet chemical synthesis highly luminescent HgTe/CdS core/shell nanocrystals”, Adv. Mtn., vol. 12, pp. 123-125, 2000.
Y.W. Cao and U. Banin, Synthesis and Characterization of InAs/InP and InAs/CdSe Cote/Shell Nanocrvstals, Angew. Chem. Int. Ed. Engl., vol. 38, pp. 3692-3694,1999.
V. Cleave, C. Yahioglu, P. LeBarny, R.H. Friend, N. Tessler, “Harvesting single and triplet energy in polymer LEDs”, Advanced Materials, vol. 11., pp. 285-298,1999.
ADSDYES, http://www.adsdyes.com/, American Dye Sour ce Inc.
A.A. Guzelian, U. Banin, A. V. Kadavanich, X. Peng, A. P. Alivisatos, “Colloidal chemical synthesis and characterization of InAs nanocrystal quantum dots”, Appl. Phys. Lett., vol. 69, pp. 1432-1434,1996.
X.G. Peng, J. Wickham, A.P. Alivisatos, “Kinetics of II-VI and III-V colloidal semiconductor nanocrystal growth: “Focusing” of size distributions”, J. Am. Chem. Soc., vol. 120, pp. 5343-5344, 1998.
N. Tessler, “Transport and optical modeling of organic light-emitting diodes”, Appl. Phys. Lett., vol. 77, pp. 1897-1899, 2000.
N.C. Greenham, X.G. Peng, A. P. Alivisatos, “Charge separation and transport in conjugated-polym/semiconductor-nanocrystal composites studied by photoluminescence quenching and photconductivity” Phys. Rev. B—Cond. Matt., vol. 54, pp. 17628-17637, 1996.
Mattoussi, H. et al: “Composite thin films . . . electrolumineseence”, Journal of Applied Physics, Oct. 15, 1999, vol. 86, No. 8, pp. 4390-4399, XP002237381.
Millo, O. et al: Tunneling and optical.—dots Physica Status Soldli. B, Basic Research, (DL), vol. 224, No. 1, 2001, pp. 271-276, XP002198576.
Appl. Phys. Rev.: Slooff, et al., J. Appl. Phys., vol. 91, No. 7, pp. 3955-3980 (Apr. 1, 2002).

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Near infra-red composite polymer-nanocrystal materials and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Near infra-red composite polymer-nanocrystal materials and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Near infra-red composite polymer-nanocrystal materials and... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3753979

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.