This technology concerns organic semiconductor compounds and organic electronic devices into which electron donor units have been introduced.
Existing n-type organic semiconductor compounds have a high LUMO (lowest unoccupied molecular orbital) energy level and low planarity, making it difficult to apply them to devices such as p-n-7 junction transistors and organic solar cells. To solve this problem, this technology proposes a compound with a low LUMO energy level by introducing an electron donor monomer and improved interconnectivity through non-covalent interactions between molecules.
The organic electronic devices of compounds using this technology show improved stability and electron mobility.
This technology was developed through support from the National Research Foundation of Korea's Pi Electronic Molecular Soft Nanomaterials research project.
This technology relates to an oxidation-reduction catalyst for a metal-air battery, an air electrode, and a membrane-electrode assembly for a metal-air battery including the same.
Lithium-air batteries have an energy density that is more than 10 times higher than existing lithium batteries, making them promising as next-generation secondary batteries. However, there is a problem in that current density and lifespan characteristics deteriorate when lithium oxide (Li2O2) accumulates through repeated charging and discharging. To solve this problem, this technology proposes a method to reduce the permeation of redox mediator (RM) through the separation membrane.
This technology can not only improve the performance of metal-air batteries by reducing the permeation of redox mediators through the separator during charging and discharging, but also prevent the crossover phenomenon of redox mediators.
This technology was developed through support from the National Research Foundation of Korea's research project for a high current density water electrolysis system using a lithium ion exchange membrane.
This technology is about a multi-sensor with a nano-suspended structure and a method that can improve multiple sensing capabilities and sensitivity characteristics.
Electrochemical sensors are generally manufactured in the form of a lab-on-a-chip for the purpose of real-time chemical substance identification and disease diagnosis, and the existing nanostructure sensor in the form of a lab-on-a-chip has a fluid flow formed in a direction parallel to the semiconductor substrate of the sensor, takes a long time to react, and requires a lot of reaction time and There is a problem in that the reaction sensitivity is low because the absolute amount of target substance that reacts is limited. To solve this problem, we propose a multi-sensor with a nano-suspended structure that enables multiple detections simultaneously and reduces the detection time by connecting multiple unit sensors formed in block units through one S-shaped microfluidic channel.
This technology is a groundbreaking technology that physically captures the target material and secondarily chemically captures the target material with the receiving material, increasing the chance of reaction, improving sensitivity and shortening the detection time, and at the same time detecting even a very small amount of the target material.
This technology was developed through the support of the National Research Foundation of Korea's research project on next-generation low-power, high-speed interconnect circuit and convergence design for 3D IC SIP using silicon interposer and chip stacking techniques.
This technology is about the manufacturing method of iron-doped cathode active material.
Among the cathode materials used in lithium-ion batteries, LiMn2O4 (LMO) is a promising material because it is environmentally friendly and inexpensive, but has the disadvantage of having an unstable structure, causing manganese to dissolve into the electrolyte. To improve these problems, this technology proposes a method of doping iron into lithium manganese oxide.
The cathode active material according to this technology can improve structural stability and electrochemical properties by doping iron into lithium manganese oxide, and is environmentally friendly by using relatively inexpensive iron, while also having an economical advantage in manufacturing cost, which is expected to contribute to improving the competitiveness of the secondary battery industry.
This technology was developed through support from the National Research Foundation of Korea's functional interface structure research project for lithium cathode-based high-capacity energy storage.
This technology is about an image processing method and a way to remove blur from images.
Blur is one of the main causes of image quality deterioration. Often, when the exposure time is long, blur may occur in the acquired image due to the shaking of the image sensor. In order to improve this problem, this technology proposes a method for removing non-uniform motion blur using estimated non-uniform motion blur information and multi-frames using multi-frames containing non-uniform motion blur.
This technology estimates non-uniform motion blur information using the local area of the multi-frame image, and uses the estimated non-uniform motion blur information to remove the blur of the multi-frame of the original resolution. Not only can it achieve clear image quality, but it can also improve the speed of removing blur from images with large resolution.
This technology is about the manufacturing method of a quaternary cathode active material.
When synthesizing a quaternary precursor with additional aluminum introduced in an existing ternary system, it is difficult to synthesize the material when using the coprecipitation method, and in particular, an additional aluminum doping process must be added after synthesizing the ternary NCM precursor, which has the disadvantage of making the process complicated. To solve this problem, this technology proposes the use of solvothermal synthesis.
The method for producing a positive electrode active material according to this technology has fewer control variables compared to the coprecipitation method, does not require the introduction of an additional aluminum doping process, and uses a simple solvothermal synthesis method without changing the existing process. Therefore, it is possible to synthesize a quaternary cathode active material precursor (NCMA precursor) containing aluminum in the precursor synthesis step, and it is expected to increase the commercial applicability of quaternary positive active materials by enabling the synthesis of high-quality spherical positive electrode active materials with uniform sizes.
This technology was developed through support from the National Research Foundation of Korea's functional interface structure research project for lithium cathode-based high-capacity energy storage.
This technology relates to a method of manufacturing carbon nanotubes, and a method of synthesizing various types of carbon nanotubes by controlling the injection timing of raw materials using the decomposition temperature of the material.
The physical properties of carbon nanotubes are determined by the diameter and chirality of the nanotubes, but existing technologies have the disadvantage of having to remove the support after synthesizing nanotubes because it is difficult to obtain catalysts of constant and uniform size. This technology proposes a method for manufacturing carbon nanotubes that can control the physical properties of synthesized carbon nanotubes using the decomposition temperature, which is a unique physical property of the material.
This is a groundbreaking technology that can create carbon nanotubes of various shapes by changing the injection method of catalysts, additives, and carbon sources.
This technology was developed through support from the National Research Foundation of Korea's ultimate tensile strength carbon nanotube fiber manufacturing technology research project.
This technology is about the manufacturing method of a composite for the functional transmission layer of a high-capacity lithium-sulfur battery
Lithium-sulfur batteries, which are emerging as a new alternative, have high theoretical capacity and high energy density and are being studied as next-generation batteries. However, the shuttle phenomenon, which is a problem of lithium-sulfur batteries, must be alleviated and the electrical conductivity of sulfur must also be improved. To achieve this goal, this technology proposes a method using reduced graphene oxide and porous vanadium nitride.
This technology can alleviate the shuttle phenomenon of lithium-sulfur batteries by improving the adsorption capacity with lithium polysulfide and promoting oxidation-reduction dynamics. It has excellent electrical conductivity and improves the utilization of sulfur by compensating for the low electrical conductivity of sulfur. This technology has the advantage of cycle stability and high capacity, and is expected to greatly contribute to the commercialization of lithium-sulfur secondary batteries.
This technology was developed through support from the National Research Foundation of Korea's functional interface structure research project for lithium cathode-based high-capacity energy storage.
This technology relates to a method of manufacturing an active optical waveguide, which includes quantum dots that can fluoresce and amplify optical signals, and forms the quantum dots using a continuous oscillation laser.
With the existing technology, it is not easy to control the size or distribution while maintaining the characteristics of the quantum dots, and the process costs are high, making quantum dots practically impossible. There was a problem with not being able to utilize it. In order to solve this problem, this technology proposes a method of manufacturing a buried active optical waveguide containing quantum dots by inducing the precipitation of quantum dots in glass using a continuous oscillation laser.
By doing so, not only can a buried optical waveguide of the desired shape be manufactured, but it can also be very usefully applied in the fields of electronic device and optical irradiation manufacturing.
This technology was developed through support from the National Research Foundation of Korea's research project on nanocrystal-containing optical glass for optoelectronic devices.
This technology is about the production of oxide/polymer hybrid solid electrolyte membranes using composite ceramic materials and all-solid-state lithium secondary batteries.
LLZO used in all-solid-state batteries has the problem of reacting with moisture and carbon dioxide at room temperature to generate Li2CO3 on the surface, resulting in Li loss and reduced ionic conductivity. To solve these problems, this technology proposes a hybrid electrolyte of a ceramic composite composition for secondary batteries using LALZO (Li6.28Al0.24La3Zr2O12) and h-BN (Hexagonal Boron Nitride) as active ingredients.
This technology significantly solves the problems of lithium loss, reduced ionic conductivity, and reduced interfacial stability, improving electrochemical properties, and lithium ions applied with existing organic liquid electrolytes. It is expected that it can replace batteries (LIBs).
This technology was developed through support from the National Research Foundation of Korea's research project on functional interface structures for lithium cathode-based high-capacity energy storage.
