Light-emitting device comprising porous alumina, and...

Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type

Reexamination Certificate

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C313S506000

Reexamination Certificate

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11081665

ABSTRACT:
A light emitting device comprises a substrate, a porous alumina layer having a regular series of cavities of nanometric size containing an emitting material, and two electrodes in contact with the emitting material and connected to an electric voltage source. The first electrode comprises at least part of an aluminum film deposited onto the substrate, on which the alumina layer has been previously grown through an anodization process.

REFERENCES:
patent: 6464853 (2002-10-01), Iwasaki et al.
patent: 6992436 (2006-01-01), Seo
patent: 1 385 041 (2004-01-01), None
Kukhta et al, “Porous Alumina Based Cathode for Organic Light-Emitting Devices”, Proceedings of the SPIE, SPIE, Bellingham, VA, US, vol. 4105, Jul. 31, 2000, pp. 405-412.
Rabin et al, “Formation of Thick Porous Anodic Alumina Films and Nanowire Arrays on Silicon Wafers and Glass”, Advanced Functional Materials, Wiley Intersciences, Wienheim, DE, vol. 13, No. 8, Aug. 2003, pp. 631-638.
Kokonou et al, “Structural and photoluminescence properties of thin alumina films on silicon, fabricated by electrochemistry”, Materials Science and Engineering B, Elsevier Sequoia, Lausanne, CH, vol. 101, No. 1-3, Aug. 15, 2003, pp. 65-70.
Shingubara et al, “Formation of Al Dot Hexagonal Array on Si Using Anodic Oxidation and Selective Etching”, Japanese Journal of Applied Physics, Publication Office Japanese Journal of Applied Physics, Tokyo, JP, vol. 41, No. 38, Part 2, Mar. 15, 2002, pp. L340-L343.
Masuda et al, “Photonic Crystal Using Anodic Porous Alumina”, Japanese Journal of Applied Physics, Publication Office Japanese Journal of Applied Physics, Tokyo, JP, vol. 38, No. 12A, Part 2, Dec. 1, 1999, pp. L1403-L1405.
Gaponenko et al, “Photoluminescence of Eu-doped titania xerogel spin-on deposited on porous anodic alumia”, Sensors and Actuators A, vol. 99, No. 1-2, Jun. 5, 2001, pp. 71-73.

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