Three-dimensional bicontinuous heterostructures, method of making, and their application in quantum dot-polymer nanocomposite photodetectors and photovoltaics
First Claim
1. A method of producing a light-sensing system on a semiconductor substrate having at least one integrated circuit device defined thereon, the method comprising:
- forming a nanomaterial having at least one semiconductor quantum dot over the integrated circuit device, the nanomaterial having at least one semiconductor quantum dot being applied via solution-processing to the semiconductor substrate having the at least one integrated circuit device;
forming a three-dimensional bicontinuous heterostructure including at least two materials with a first material formed on the semiconductor substrate so that a surface of the first material completely covers a surface of the semiconductor substrate; and
forming a second material located on the first material, the first and the second materials each having a structure and morphology that includes protrusions with substantially no islands, the first material and the second material each being spatially continuous, the protrusions from the first material penetrate into the second material and the protrusions from the second material penetrate into the first material to form an irregular interpenetrating interface between the first and the second materials, the protrusions from the first material being opposite the surface of the first material that completely covers the surface of the semiconductor substrate.
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Abstract
Provided herein are embodiments of a three-dimensional bicontinuous heterostructure, a method of producing same, and the application of this structure. The three-dimensional bicontinuous heterostructure includes two interpenetrating layers which are spatially continuous, include only protrusions or peninsulas, and have no islands. The method of producing the three-dimensional bicontinuous heterostructure includes forming an essentially planar continuous bottom layer of a first material; forming a layer of this first material on top of the bottom layer that is textured to produce protrusions for subsequent interpenetration with a second material, coating this second material onto this structure, and forming a coating with the second material that ensures that only the second material is contacted by subsequent layer. One of the materials includes visible and/or infrared-absorbing semiconducting quantum dot nanoparticles, and one of materials is a hole conductor and the other is an electron conductor.
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Citations
28 Claims
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1. A method of producing a light-sensing system on a semiconductor substrate having at least one integrated circuit device defined thereon, the method comprising:
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forming a nanomaterial having at least one semiconductor quantum dot over the integrated circuit device, the nanomaterial having at least one semiconductor quantum dot being applied via solution-processing to the semiconductor substrate having the at least one integrated circuit device; forming a three-dimensional bicontinuous heterostructure including at least two materials with a first material formed on the semiconductor substrate so that a surface of the first material completely covers a surface of the semiconductor substrate; and forming a second material located on the first material, the first and the second materials each having a structure and morphology that includes protrusions with substantially no islands, the first material and the second material each being spatially continuous, the protrusions from the first material penetrate into the second material and the protrusions from the second material penetrate into the first material to form an irregular interpenetrating interface between the first and the second materials, the protrusions from the first material being opposite the surface of the first material that completely covers the surface of the semiconductor substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28)
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Specification