Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Coating selected area
Patent
1997-12-15
2000-09-26
Gorgos, Kathryn
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Coating selected area
205333, C25D 502
Patent
active
061238244
ABSTRACT:
A photo-electricity generating device is produced through the steps of: immersing an electrode and an electroconductive substrate in an aqueous solution comprising nitrate ions and zinc ions, supplying a current passing through a gap between the electrode and the electroconductive substrate to form a first zinc oxide layer on the electroconductive substrate, etching the first zinc oxide layer, and forming a semiconductor layer on the zinc oxide layer. The zinc oxide layer may preferably be formed in two zinc oxide layers under different electrudeposition conditions. In this case, the etching step may preferably be performed between steps for forming these zinc oxide layers. The zinc oxide layer is provided with an unevenness at its surface suitable for constituting a light-confining layer of a resultant photo-electricity generating device.
REFERENCES:
patent: 5804466 (1998-09-01), Arao et al.
H. Sannomiya, "a-SiC/a-Si/a-SiGe Multi-Bandgap Stacked Solar Cells With Bandgap Profiling", Tech. Dig. Intl. PVSEC-5, Kyoto, Japan, 1990 No month available.
Y. Inoue, "Optical Confinement Effect in a-SiGe Solar Cells on Stainless Steel Substrates", preprint 29p-MF-2 for the 51st Acad. Lect. of the Japan Soc. of App. Phys., Autumn 1990 No month available.
M. Izaki, "Electrolyte Optimization for Cathodic Growth of Zinc Oxide Films", J. Electrochem. Society., vol. 143, No. 3, Mar. 1996.
Kariya Toshimitsu
Sano Masafumi
Canon Kabushiki Kaisha
Gorgos Kathryn
Smith-Hicks Erica
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