Nanoparticle Semiconductor Device and Method for Fabricating
First Claim
1. A low-temperature process for creating a semiconductive device by printing a liquid composition containing semiconducting nanoparticles, comprising:
- providing a polymeric substrate;
providing a printable composition comprising nanoparticles of inorganic semiconductor suspended in a carrier;
printing the printable composition on the polymeric substrate using a graphic arts printing method, so as to form a printed deposit of the composition;
substantially removing the carrier from the printed deposit; and
wherein the low-temperature process does not comprise heating the printed deposit above 300°
C.
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Accused Products
Abstract
A low-temperature process for creating a semiconductive device by printing a liquid composition containing semiconducting nanoparticles. The semiconductive device is formed on a polymeric substrate by printing a composition that contains nanoparticles of inorganic semiconductor suspended in a carrier, using a graphic arts printing method. The printed deposit is then heated to remove substantially all of the carrier from the printed deposit. The low-temperature process does not heat the substrate or the printed deposit above 300° C. The mobility of the resulting semiconductive device is between about 10 cm2/Vs and 200 cm2/Vs.
34 Citations
20 Claims
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1. A low-temperature process for creating a semiconductive device by printing a liquid composition containing semiconducting nanoparticles, comprising:
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providing a polymeric substrate; providing a printable composition comprising nanoparticles of inorganic semiconductor suspended in a carrier; printing the printable composition on the polymeric substrate using a graphic arts printing method, so as to form a printed deposit of the composition; substantially removing the carrier from the printed deposit; and wherein the low-temperature process does not comprise heating the printed deposit above 300°
C. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A low-temperature process for creating a semiconductive device by printing a liquid composition containing semiconducting nanoparticles, comprising:
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providing an electrically insulating substrate; providing a printable composition comprising nanoparticles less than 100 nanometers of one or more inorganic semiconductors selected from the group consisting of elements from the Periodic Table of the Elements Group IV, binary Group III-V, binary Group II-VI, and combinations, compounds, or alloys thereof suspended in a carrier comprising one or more solvents selected from the group consisting of primary alkyl alcohols, alkyl diols, alkyl polyols, water, alkyl glycol ethers, and alkyl glycol acetates; printing the printable composition on the insulating substrate using a graphic arts printing technique, so as to form a printed deposit of the composition in a predetermined pattern; and substantially removing the carrier from the printed deposit by heating the printed deposit at a temperature not to exceed 150°
C. - View Dependent Claims (13, 14, 15)
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- 16. An inorganic semiconductive device formed on a polymeric substrate, comprising a substrate having nanoparticles of inorganic semiconductor printed in a predetermined pattern using a graphic arts printing technique, wherein the mobility of the inorganic semiconductive device is between about 10 cm2/Vs and 200 cm2/Vs.
Specification