Process for preparing coated substrates and photovoltaic devices
First Claim
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1. An ink comprising:
- a) a plurality of CZTS/Se microparticles;
b) a plurality of particles selected from the group consisting of;
CZTS/Se nanoparticles;
elemental Cu-, elemental Zn- or elemental Sn-containing particles;
binary or ternary Cu-, Zn- or Sn-containing chalcogenide particles; and
mixtures thereof; and
c) a vehicle.
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Abstract
This invention provides compositions and the processes for preparing the compositions that are useful for preparing films of CZTS and its selenium analogues on a substrate. Such films are useful in preparing photovoltaic devices. This invention also provides processes for preparing a semiconductor layer comprising CZTS/Se microparticles embedded in an inorganic matrix. This invention also provides processes for making a photovoltaic devices and the photovoltaic devices so produced.
20 Citations
15 Claims
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1. An ink comprising:
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a) a plurality of CZTS/Se microparticles; b) a plurality of particles selected from the group consisting of;
CZTS/Se nanoparticles;
elemental Cu-, elemental Zn- or elemental Sn-containing particles;
binary or ternary Cu-, Zn- or Sn-containing chalcogenide particles; and
mixtures thereof; andc) a vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A coated substrate comprising:
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a) a substrate; and b) at least one layer disposed on the substrate comprising; i) a plurality of CZTS/Se microparticles; ii) a plurality of particles selected from the group consisting of;
CZTS/Se nanoparticles;
elemental Cu-, elemental Zn- or elemental Sn-containing particles;
binary or ternary Cu-, Zn- or Sn-containing chalcogenide particles; and
mixtures thereof. - View Dependent Claims (10, 11, 12, 13)
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14. A film comprising:
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a) an inorganic matrix; and b) CZTS/Se microparticles characterized by an average longest dimension of 0.5-200 microns, wherein the microparticles are embedded in the inorganic matrix. - View Dependent Claims (15)
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Specification