Coating processes – Particles – flakes – or granules coated or encapsulated – Inorganic base
Reexamination Certificate
2007-12-11
2007-12-11
Wilczewski, M. (Department: 2822)
Coating processes
Particles, flakes, or granules coated or encapsulated
Inorganic base
C427S076000, C977S773000, C977S857000
Reexamination Certificate
active
10943657
ABSTRACT:
CIGS absorber layers fabricated using coated semiconducting nanoparticles and/or quantum dots are disclosed. Core nanoparticles and/or quantum dots containing one or more elements from group IB and/or IIIA and/or VIA may be coated with one or more layers containing elements group IB, IIIA or VIA. Using nanoparticles with a defined surface area, a layer thickness could be tuned to give the proper stoichiometric ratio, and/or crystal phase, and/or size, and/or shape. The coated nanoparticles could then be placed in a dispersant for use as an ink, paste, or paint. By appropriate coating of the core nanoparticles, the resulting coated nanoparticles can have the desired elements intermixed within the size scale of the nanoparticle, while the phase can be controlled by tuning the stochiometry, and the stoichiometry of the coated nanoparticle may be tuned by controlling the thickness of the coating(s).
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Robinson Matthew R.
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Yu Dong
Isenberg Joshua D.
JDI Patent
Nanosolar, Inc.
Wilczewski M.
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