Stock material or miscellaneous articles – Composite – Of quartz or glass
Reexamination Certificate
2011-06-28
2011-06-28
Blackwell, Gwendolyn (Department: 1784)
Stock material or miscellaneous articles
Composite
Of quartz or glass
C428S336000, C428S701000, C428S689000, C428S697000, C428S699000, C427S166000, C427S255150, C427S255190, C427S255280, C065S060500
Reexamination Certificate
active
07968201
ABSTRACT:
A multi-layer thin film stack, particularly suitable as a component of a solar cell, is deposited on a transparent dielectric substrate. The multi-layer film stack comprises a transparent electrically conductive metal oxide layer deposited over the dielectric substrate, the conductive metal oxide layer having a refractive index less than 2.0, a light transmittance optimizing interlayer having a refractive index between 2.3 and 3.5, deposited over the electrically conductive metal oxide layer, and a silicon layer having a refractive index of at least 4.5 deposited over the light transmittance optimizing interlayer. The film stack can be deposited by any suitable method, but deposition of each of these layers by atmospheric chemical vapor deposition is preferred.
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Natsuhara, H. et al; Hydrogen-radical durability of TiO2thin films for protecting transparent conducting oxide for Si thin film solar cells; Thin Solid Films; Apr. 22, 2003; pp. 253-256; Elsevier Science B.V.; vol. 430, No. 1-2; XP004427564.
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Nelson Douglas M.
Nichol Gary
Varanasi Srikanth
Blackwell Gwendolyn
Marshall & Melhorn LLC
Pilkington Group Limited
Pilkington North America Inc.
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