Photoactive, inorganic ligand-capped inorganic nanocrystals
AssigneeThe University of Chicago
InventorsDmitri V. Talapin, Yuanyuan Wang, Hao Zhang
Life of this patent
Estimating the term…
Abstract
Ligand-capped inorganic particles, films composed of the ligand-capped inorganic particles, and methods of patterning the films are provided. Also provided are electronic, photonic, and optoelectronic devices that incorporate the films. The ligands that are bound to the inorganic particles are composed of a cation/anion pair. The anion of the pair is bound to the surface of the particle and at least one of the anion and the cation is photosensitive.
Claims17
Ligand-capped inorganic oxide nanoparticles comprising:
- inorganic oxide nanoparticles, each oxide nanoparticle having a surface;
- and
- photosensitive ligands bound to the surfaces of the inorganic oxide nanoparticles, wherein the photosensitive ligands comprise a cation and a photosensitive S2CN3 anion.
The Ligand-capped inorganic oxide nanoparticles, comprising:
- inorganic oxide nanoparticles, each oxide nanoparticle having a surface;
- and
- photosensitive ligands bound to the surfaces of the inorganic oxide nanoparticles, wherein the photosensitive ligands comprise a cation and a photosensitive (Fe(C2O4)3)2−anion.
Ligand-capped inorganic oxide nanoparticles, comprising:
- inorganic oxide nanoparticles, each oxide nanoparticle having a surface;
- and
- photosensitive ligands bound to the surfaces of the inorganic oxide nanoparticles, wherein the photosensitive ligands comprise a cation and a photosensitive 1,1-thiooxalate.
A method of patterning a zirconia film, the method comprising:
- forming a film of ligand-capped zirconia nanoparticles, the ligand- capped zirconia nanoparticles comprising:
- zirconia nanoparticles, each zirconia nanoparticle having a surface;
- and
- photosensitive ligands bound to the surfaces of the zirconia nanoparticles, wherein the photosensitive ligands comprise either:
- a cation and a photosensitive anion;
- or an inorganic anion and a non-ionic photoacid generator;
- irradiating a first portion of the film with radiation, wherein the interaction between the radiation and the photosensitive anion or the non-ionic photoacid generator results in a change in the solubility of the ligand-capped zirconia nanoparticles in a solvent, while preventing a second portion of the film from being irradiated by the radiation;
- and
- contacting the film with the solvent, whereby the first portion of the film or the second portion of the film is dissolved by the solvent.
Ligand-capped zirconia nanoparticles comprising:
- zirconia nanoparticles, each zirconia nanoparticle having a surface;
- and
- photosensitive ligands bound to the surfaces of the zirconia nanoparticles, wherein the photosensitive ligands comprise either:
- a cation and a photosensitive anion;
- or an inorganic anion and a non-ionic photoacid generator.
Ligand-capped inorganic oxide nanoparticles comprising:
- inorganic oxide nanoparticles, each oxide nanoparticle having a surface;
- and
- photosensitive ligands bound to the surfaces of the inorganic oxide nanoparticles, wherein the photosensitive ligands comprise an inorganic anion and a non-ionic photoacid generator.
Dependencies are inferred from the claim text.