Abstract:
Disclosed is a method of manufacturing a multicolor quantum dot pattern, which includes: forming a first photoresist pattern on a substrate; activating a surface of the substrate having the first photoresist pattern formed thereon; forming a first quantum dot layer on the activated substrate; generating a first quantum dot pattern by removing the first photoresist pattern; and generating a second quantum dot pattern on the same layer as the first quantum dot pattern generated on the substrate. Accordingly, various kinds of quantum dots may be easily implemented at a single substrate.
Abstract:
Disclosed is a method of manufacturing a multicolor quantum dot pattern, the forming of a first quantum dot layer on the activated substrate includes: coating a polymer with a polarity opposite to a surface charge of the activated substrate or coating quantum dots having a functional group charged with a polarity opposite to a surface charge of the activated substrate onto the substrate; washing the substrate with water having pH 6 to pH 8; drying the substrate with flow of nitrogen, argon or air; coating quantum dots having a functional group charged with a polarity opposite to the polymer or the quantum dots charge coated on the substrate, or coating a polymer with a polarity opposite to the quantum dots charge coated on the substrate; washing the substrate with water having pH 6 to pH 8; and drying the substrate with flow of nitrogen, argon or air.
Abstract:
Provided is a wavelength converting structure for near-infrared rays and a solar cell using the same. More particularly, provided is a novel wavelength converting structure for near-infrared rays using gap plasmon characteristics and up-conversion nanoparticles. When applying the wavelength converting structure for near-infrared rays to a solar cell, it is possible to convert the light within a wavelength range of near-infrared rays into electric energy so that the photoconversion efficiency may be improved.
Abstract:
The present invention relates to a solar cell having a wavelength converting layer formed of a polysilazane and a manufacturing method thereof to allow for low temperature sintering, to protect a wavelength converter from oxidation, degradation, and whitening, and thereby improve efficiency of the solar cell. The present invention provides for the solar cell including the wavelength converting layer which is formed by applying a coating solution containing a solvent, a polysilazane, and a wavelength converter onto a cell and an outer surface or inside of the cell, and then curing, and a manufacturing method of.
Abstract:
By virtue of a structure in which patterns have protuberances with a cone-shaped structure and quantum dots are embedded in the protuberances, an optical film prevents the reflection of light, and converts light in the near ultraviolet wavelength region to a range of wavelengths a solar cell can absorb the light, thereby significantly improving the efficiency of a device.
Abstract:
Disclosed is a nano-structure manufacturing method which includes: forming a first semiconductor composite layer, a semiconductor quantum structure layer, a second semiconductor composite layer, and a semiconductor quantum dot layer on a substrate in order; thermally treating the semiconductor quantum dot layer so that quantum dots of the semiconductor quantum dot layer are aggregated; and performing an etching process by using the aggregated quantum dots as a mask.
Abstract:
The present disclosure relates to a photoacoustic gas sensor for detecting the presence or absence of gas using the interaction of a laser beam and gas molecules. The integrated photoacoustic gas sensor according to an embodiment includes a light output unit; a lens unit configured to concentrate a laser beam output from the light output unit; and a photoacoustic sensing unit having a quartz tuning fork aligned on the lens unit and configured to convert a vibration, generated when the laser beam passing through the lens unit interacts with gas molecules, into an electric signal.
Abstract:
A method for surface planarization of an object using a light source of a specific wavelength according to an embodiment includes: providing an object in a main chamber; injecting an etching gas into the main chamber; inputting the light source of a specific wavelength onto a surface of the object; and controlling a temperature of the object. According to the method, it is possible to minimize the side effects such as scratches or contamination of the sample that occur in a conventional chemical-mechanical planarization process. In addition, it is possible to allow precise planarization in nanometers (nm) and simultaneously perform planarization to a side surface of a device as well as a large-sized surface, thereby reducing cost and time required for the planarization process. Moreover, since the surface roughness and the electrical conductivity are improved, it is possible to increase the efficiency and output of the LED device.
Abstract:
A plasmonic structure having an identifier pattern indicating a genuine product for preventing counterfeiting, falsification or reuse, includes a metal layer; a photoconversion pattern layer including a plurality of photoconverting nanoparticles disposed in a pattern on and in direct contact with the metal layer; a metal pattern layer including a plurality of metal particles disposed in a pattern on and in direct contact with the photoconversion pattern layer; and an adhesive film disposed on the metal pattern layer. An identifier pattern indicating a genuine product is easily identified even by visual inspection after irradiation with infrared light irradiation. The plasmonic structure is fundamentally impossible to re-assemble after deformation of the plasmonic structure caused by disassembly of a product or packaging container, thereby preventing counterfeiting, falsification or reuse.
Abstract:
A solar cell panel includes a light concentration layer on which sunlight is incident and concentrated; a cladding layer stacked on bottom of the light concentration layer; a light conversion/light guide layer including a light guide layer stacked on bottom of the light concentration layer to guide visible light to a side surface and a light conversion member to convert ultraviolet or infrared light to visible light; and a solar cell array placed along a side surface of the light conversion/light guide layer and having multiple solar cells electrically connected. The solar cell panel and a window comprising the same can increase efficiency of a window-type solar module by converting and concentrating light in a wavelength range not contributing to solar cell efficiency.