Patents by Inventor Yuh-Lang Lee
Yuh-Lang Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240038453Abstract: A dye-sensitized solar cell, a polymeric solid-state electrolyte film for dye- sensitized solar cells, and a manufacturing method thereof are provided. The manufacturing method comprises the following steps: providing a liquid electrolyte, wherein the liquid electrolyte includes a solvent and an electrolyte material dissolved in the solvent; adding a polymer material into the liquid electrolyte to form a gel electrolyte; applying the gel electrolyte to a carrier to form a colloidal-state film; and evaporating the solvent contained in the colloidal-state film in a vacuum environment, wherein the pressure in the vacuum environment is controlled at 0.01 to 10 torr, the temperature is controlled at 40 to 70° C., and the treatment time is 2 to 100 hours, to form a polymeric solid-state electrolyte film.Type: ApplicationFiled: September 29, 2022Publication date: February 1, 2024Applicant: NATIONAL CHENG KUNG UNIVERSITYInventor: Yuh-lang Lee
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Patent number: 11309139Abstract: A bifacial light-harvesting dye-sensitized solar cell is provided and has: a first transparent substrate, a second transparent substrate, a working electrode, a first semiconductor layer, a second semiconductor layer, a third semiconductor layer, a counter electrode, a light-transmitting catalyst layer, and a liquid electrolyte. A photoelectric conversion efficiency of the dye-sensitized solar cell is improved by using a specific working electrode structure.Type: GrantFiled: November 14, 2019Date of Patent: April 19, 2022Assignee: NATIONAL CHENG KUNG UNIVERSITYInventors: Yuh-Lang Lee, I-Ping Liu, Yu-Syuan Cho
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Publication number: 20210082633Abstract: A bifacial light-harvesting dye-sensitized solar cell is provided and has: a first transparent substrate, a second transparent substrate, a working electrode, a first semiconductor layer, a second semiconductor layer, a third semiconductor layer, a counter electrode, a light-transmitting catalyst layer, and a liquid electrolyte. A photoelectric conversion efficiency of the dye-sensitized solar cell is improved by using a specific working electrode structure.Type: ApplicationFiled: November 14, 2019Publication date: March 18, 2021Inventors: Yuh-Lang LEE, I-Ping LIU, Yu-Syuan CHO
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Patent number: 10224152Abstract: An electrolyte for a dye-sensitized solar cell is disclosed. The electrolyte includes a solvent being one selected from a group consisting of gamma-butyrolactone (gBL), propylene carbonate (PC) and 3-methoxypropionitrile (MPN), and a polymer mixed with the solvent to form an electrolyte solution, wherein when the solvent is one of gBL and PC, the polymer is one selected from a group consisting of polyacrylonitrile (PAN), polyvinyl acetate (PVA), poly(acrylonitrile-co-vinyl acetate) (PAN-VA) and a combination thereof; and when the solvent is MPN, the polymer includes one of a mixture of poly(ethylene oxide (PEO) and polyvinylidene fluoride (PVDF), and a mixture of PEO and polymethylmethacrylate (PMMA).Type: GrantFiled: August 19, 2016Date of Patent: March 5, 2019Assignee: National Cheng Kung UniversityInventors: Yuh-Lang Lee, Sung-Chuan Su, Wei-Ning Hung, Jian-Ci Lin
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Publication number: 20170053747Abstract: An electrolyte for a dye-sensitized solar cell is disclosed. The electrolyte includes a solvent being one selected from a group consisting of gamma-butyrolactone (gBL), propylene carbonate (PC) and 3-methoxypropionitrile (MPN), and a polymer mixed with the solvent to form an electrolyte solution, wherein when the solvent is one of gBL and PC, the polymer is one selected from a group consisting of polyacrylonitrile (PAN), polyvinyl acetate (PVA), poly(acrylonitrile-co-vinyl acetate) (PAN-VA) and a combination thereof; and when the solvent is MPN, the polymer includes one of a mixture of poly(ethylene oxide (PEO) and polyvinylidene fluoride (PVDF), and a mixture of PEO and polymethylmethacrylate (PMMA).Type: ApplicationFiled: August 19, 2016Publication date: February 23, 2017Inventors: Yuh-Lang Lee, Sung-Chuan Su, Wei-Ning Hung, Jian-Ci Lin
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Patent number: 9120844Abstract: A method for changing conformation of globular proteins is provided. The method controls the concentration of the globular proteins and the adsorption time of the globular proteins from the aqueous solution to the air/liquid interface, so that the main conformation of the globular proteins in a protein monolayer can be changed into ?-sheet or ?-helix. Meanwhile, the protein monolayer having the conformation of ?-sheet or ?-helix can be vertically deposited and transferred onto a substrate for various applications according to needs. The present invention can change three-dimensional structures of biological molecules and remain original functions thereof without additionally using any physical/chemical treatment to change the conformation of the globular proteins.Type: GrantFiled: May 24, 2012Date of Patent: September 1, 2015Assignee: NATIONAL CHENG KUNG UNIVERSITYInventors: Yuh-lang Lee, Ke-hsuan Wang
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Publication number: 20140220731Abstract: The present invention provides a binder-free process for preparing a photoanode of flexible dye-sensitized solar cell, comprising: (a) preparing a TiO2 suspension fluid comprising TiO2, acetylacetone and anhydrous ethanol; (b) preparing a charge solution comprising iodine, ketone and deionized water; (c) mixing said TiO2 suspension fluid and said charge solution to obtain an electrophoresis suspension; (d) soaking a substrate and a cathode into the electrophoresis suspension and proceeding electrophoresis to obtain an TiO2 deposited substrate, in which said substrate and said cathode are flexible; (e) heating the TiO2 deposited substrate; and (f) compressing the heated TiO2 substrate to obtain the photoanode.Type: ApplicationFiled: February 6, 2013Publication date: August 7, 2014Applicant: NATIONAL CHENG KUNG UNIVERSITYInventors: JYH-MING TING, LI-CHIEH CHEN, Yuh-Lang Lee, Min-Hsiung Hon
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Patent number: 8758639Abstract: An electrolyte composition with a low gelling temperature is disclosed, which includes: an electrolyte gelator which is an acrylonitrile-based copolymer; and a liquid electrolyte containing a nitrile-based solvent. A method for manufacturing an electronic device using the aforesaid electrolyte composition is also disclosed.Type: GrantFiled: March 30, 2011Date of Patent: June 24, 2014Assignee: National Cheng Kung UniversityInventors: Yuh-Lang Lee, Ching-Lun Chen
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Patent number: 8455586Abstract: A copolymeric gelator includes a minor monomeric unit; and a major acrylonitrile (AN) monomeric unit copolymerized with the minor monomeric unit to provide a copolymer that is soluble in a solvent comprised of 1,2-dimethyl-3-propylimidazolium iodide and 3-methoxypropionitrile. The major acrylonitrile (AN) monomeric units have good ionic conductivity and coordinating sites for lithium ions to be dissolved with a liquid-electrolytic solvent. The minor monomeric units may be selected among vinyl acetate, allyl acetate, styrene, acrylamide and a combination thereof. The gelator and a liquid-electrolytic solvent may be used to produce a gel electrolyte.Type: GrantFiled: March 12, 2010Date of Patent: June 4, 2013Assignee: National Cheng Kung UniversityInventors: Yuh-Lang Lee, Ching-Lun Chen
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Publication number: 20130095551Abstract: A method for changing conformation of globular proteins is provided. The method controls the concentration of the globular proteins and the adsorption time of the globular proteins from the aqueous solution to the air/liquid interface, so that the main conformation of the globular proteins in a protein monolayer can be changed into ?-sheet or ?-helix. Meanwhile, the protein monolayer having the conformation of ?-sheet or ?-helix can be vertically deposited and transferred onto a substrate for various applications according to needs. The present invention can change three-dimensional structures of biological molecules and remain original functions thereof without additionally using any physical/chemical treatment to change the conformation of the globular proteins.Type: ApplicationFiled: May 24, 2012Publication date: April 18, 2013Applicant: NATIONAL CHENG KUNG UNIVERSITYInventors: Yuh-lang Lee, Ke-hsuan Wang
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Publication number: 20120160307Abstract: The present invention provides a dye-sensitized solar cell (DSSC), and a method for manufacturing the same. In the present invention, the DSSC comprises: a dye-sensitized semiconductor electrode, a counter electrode opposite to the dye-sensitized semiconductor electrode, and an electrolyte disposed between the dye-sensitized semiconductor electrode and the counter electrode. Herein, the dye-sensitized semiconductor electrode comprises: an anode; a TiO2 layer disposed on the anode; and a dye absorbed to the TiO2 layer. In addition, the counter electrode comprises: a first transparent substrate with a first transparent electrode formed thereon; and a Pt film disposed on the first transparent electrode, wherein the Pt film is formed with plural Pt nanoparticles, the diameters of the Pt nanoparticles are 1-8 nm, and the thickness of the Pt film is 0.5-3 nm.Type: ApplicationFiled: June 24, 2011Publication date: June 28, 2012Applicant: National Cheng Kung UniversityInventors: Yuh-Lang LEE, Ching-Lun Chen, Chien-Heng Chen
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Publication number: 20120018077Abstract: An electrolyte composition with a low gelling temperature is disclosed, which includes: an electrolyte gelator which is an acrylonitrile-based copolymer; and a liquid electrolyte containing a nitrile-based solvent. A method for manufacturing an electronic device using the aforesaid electrolyte composition is also disclosed.Type: ApplicationFiled: March 30, 2011Publication date: January 26, 2012Applicant: National Cheng Kung UniversityInventors: Yuh-Lang Lee, Ching-Lun Chen
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Publication number: 20100267849Abstract: A gelator for producing a gel electrolyte is a copolymer and comprises multiple major monomeric units, multiple minor monomeric units and multiple optional components. The major monomeric units comprise acrylonitrile (AN) monomeric units that have good ionic conductivity and coordinating sites for lithium ions to be dissolved with a liquid-electrolytic solvent. The minor monomeric units are a combination of at least one type monomeric unit, and the combination of at least one type monomeric unit is selected from a group consisting of vinyl acetate (VA), allyl acetate (AA), styrene, acrylamide and at least one reactive compound. A gel electrolyte is a mixture of a gelator and a liquid-electrolytic solvent.Type: ApplicationFiled: March 12, 2010Publication date: October 21, 2010Applicant: NATIONAL CHENG KUNG UNIVERSITYInventors: Yuh-Lang LEE, Ching-Lun Chen
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Publication number: 20060011475Abstract: An in-situ and real-time monitoring and controlling system for chemical vessels, tanks, reactors or the like is disclosed. The chemical vessels, tanks, or reactors are employed to contain high-purity corrosive chemicals such as acids, alkaline liquids or the like. The monitoring and controlling system encompasses a vessel including a conductive shell and insulating interior lining coated therein. A robust detection electrode is dipped into the chemical liquid contained by the vessel. The detection electrode is electrically connected to a measurement means such as an ohmmeter that is mounted outside the vessel. The measurement means is further electrically connected to the conductive shell. When the interior lining is pitted due to the chemical attack by the chemical liquid and the chemical liquid contacts the conductive shell, the measurement means promptly receives a corresponding signal.Type: ApplicationFiled: June 30, 2004Publication date: January 19, 2006Inventors: Hung-Hsiang Lin, Kun-Yang Lin, Shun-Li Hong, Yuh-Lang Lee, Yu-Zen Shen
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Publication number: 20060000711Abstract: An in-situ and real-time corrosion controlling system for chemical vessels, tanks or reactors is disclosed. The chemical vessels, tanks or reactors are employed to contain high-purity corrosive chemicals such as acids, alkaline liquids or the like. The controlling system encompasses a vessel including a conductive shell and insulating interior lining coated therein. A robust detection electrode is dipped into the chemical liquid contained by the vessel. The detection electrode is electrically connected to a measurement means such as an ohmmeter that is mounted outside the vessel. The measurement means is further electrically connected to the conductive shell. When the interior lining is pitted due to the chemical attack by the chemical liquid and the chemical liquid contacts the conductive shell, the measurement means promptly receives a corresponding signal. According to one preferred embodiment, the measurement means is further connected to a controller unit that can control a semiconductor-processing unit.Type: ApplicationFiled: April 20, 2005Publication date: January 5, 2006Inventors: Hung-Hsiang Lin, Kun-Yang Lin, Shun-Li Hong, Yuh-Lang Lee, Yu-Zen Shen