Stock material or miscellaneous articles – Composite – Of inorganic material
Reexamination Certificate
2004-12-30
2008-11-18
Shosho, Callie (Department: 1794)
Stock material or miscellaneous articles
Composite
Of inorganic material
C428S917000, C313S504000, C257S040000, C257SE51027, C257SE51041, C257SE51043, C252S301310, C252S301350, C427S066000, C427S488000
Reexamination Certificate
active
07452614
ABSTRACT:
The present invention is related to a luminescent material generated by polymerization of a pyrromethene complex by glow discharge. The polymer material of the present invention exhibits semi-conductive properties and has a luminescence maximum in a spectrum region in the range of about 540 nm to about 585 nm with a half-width of the luminescence band in the range of about 55 nm to about 75 nm, a quantum yield of photoluminescence in the range of about 0.6 to about 0.8, and an electric conductivity at a temperature of about 20° C. in the range of about 1×10−10S/cm to about 5×10−10S/cm. The resultant polymer layer has a thickness in the range of about 0.01 μm to about 10 μm on a substrate placed between or on any of the electrodes. The starting pyrromethene complex may be a 1,3,5,7,8-pentamethyl-2,6-diethylpyrromethene difluoroborate complex (pyrromethene 567). Additionally, the luminescent polymer material may be formed as a layer on a substrate having conductive coating, such as a metal, a dielectric material or semi-conductive material, for example.
REFERENCES:
patent: 5811833 (1998-09-01), Thompson
patent: 6361885 (2002-03-01), Chou
patent: 6495273 (2002-12-01), Hwang et al.
patent: 2003/0082406 (2003-05-01), Murase
patent: 0669387 (1995-08-01), None
patent: 9-082473 (1997-03-01), None
patent: 09-289081 (1997-11-01), None
patent: 2155204 (2000-08-01), None
Jones et al., “Energy transfer for laser dyes cobound in organic polymers,” Proceedings of SPIE, vol. 2698, pp. 65-74, Mar. 1996.
Chen et al., “Synthesis of 2,6-diethyl-3-methacroyloxymethyl-1,5,7,8-tetramethylpyrromethene-BF2 for the preparation of new solid-state laser dyes,” Heteroatom Chemistry, vol. 8, No. 1, pp. 51-54, 1997.
Osada et al., “Preparation and electrical properties of polymeric copper phthalocyanine thin films by plasma polymerization,” Journal of Applied Physics, vol. 59, No. 5, pp. 1776-1779, Mar. 1986.
Eufinger et al., “DC plasma-polymerization of pyrrole: Comparison of films formed on anode and cathode,” Journal of Applied Polymer Science, vol. 61, No. 9, pp. 1503-1513, Aug. 1996.
Seoul et al., “Polymer light-emitting devices based on plasma-polymerized benzene and plasma-polymerized naphthalene,” Journal of Materials Science: Materials in Electronics, vol. 12, No. 1, 51-55, Jan. 2001.
Drachev Alexandr Ivanovich
Gilman Alla Borisovna
Kuznetsov Alexandr Alexeevich
Surin Nikolay Mikhaylovich
Hallman Jonathan W.
MacPherson Kwok & Chen & Heid LLP
Nelson Michael E
Samsung Electronics Co,. Ltd.
Shosho Callie
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