Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Forming nonmetal coating
Patent
1998-01-20
2000-08-22
Gorgos, Kathryn
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Forming nonmetal coating
205206, 205210, 205199, 205200, 205201, 205164, 205167, 4274301, 427435, 427322, 427328, 427307, 427436, 427316, 427318, 427319, C25D 900, C25D 534, C23D 2800, B05D 118, B05D 312
Patent
active
061066893
ABSTRACT:
A process for forming a zinc oxide film including immersing an electroconductive substrate having a surface including a plurality of linear projections in an aqueous solution containing at least nitrate ions and zinc ions to form a zinc oxide film on the electroconductive substrate by a liquid-phase deposition. The plurality of linear projections may preferably provide an uneven surface which has a center-line average surface roughness Ra(X) of 15-300 nm when scanned in a direction parallel to the linear projections, a center line average surface roughness Ra(Y) of 20-600 nm when scanned in a direction perpendicular to the linear projections, and an Ra(X)/Ra(Y) ratio of at most 0.8. The thus formed zinc oxide film is provided with an uneven surface suitable for an optical-confinement layer of a photo-electricity generating device excellent in photoelectric performances.
REFERENCES:
patent: 5800632 (1998-09-01), Arao et al.
Inoue, Y., et al. "Optical Confinement Effect in a-SiGe Solar Cells on Stainless Steel Substrates," Preprint (29p-MF-2) for the 51-th Academic Lecture of The Japan Society of Applied Physics, p. 747, Autumn, 1990. No month available.
Sannomiya, H., et al., "a-SiC/a-Si/a-SiGe Multi-Bandgap Stacked Solar Cells with Bandgap Profiling," Technical Digest of the International, PVSEC-5, Kyoto, Japan, p. 381, 1990. No month available.
Izaki, Masanobu, et al., "Electrolyte Optimization for Cathodic Growth of Zinc Oxide Films," J. Electrochem Society, Inc., vol. 143, Mar. 1996, L53.
Canon Kabushiki Kaisha
Gorgos Kathryn
Wong Edna
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