Abstract:
본 개시의 일 측면에 따라, 매우 우수한 전하 이동도 뿐만 아니라 밴드갭을 갖는 그래핀 적층체를 제공한다. 본 개시의 제1 측면에 따른 그래핀 적층체의 일 구현예는, 음전하 대전면 및 양전하 대전면을 갖는 제1 압전재료 층; 상기 제1 압전재료 층의 아래에 위치하는 제1 그래핀 층으로서, 상기 제1 압전재료 층의 양전하 대전면과 접하고 있는 제1 그래핀 층; 상기 제1 그래핀 층의 아래에 위치하는 제2 그래핀 층; 및 상기 제2 그래핀 층의 아래에 위치하며 음전하 대전면 및 양전하 대전면을 갖는 제2 압전재료 층으로서, 상기 제2 압전재료 층의 음전하 대전면이 상기 제2 그래핀 층과 접하고 있는, 제2 압전재료 층;을 포함한다.
Abstract:
Disclosed are a thermoelectric material and a thermoelectric device including the same. The disclosed thermoelectric material includes at least two different material layers and, for example, a stack structure on which a first material layer and a second material layer are alternatively stacked. The first material layer includes a carbon nanomaterial. The second material layer includes a thermoelectric inorganic material. The first material layer includes the thermoelectric inorganic material with the carbon nanomaterial. The carbon nanomaterial, for example, includes graphene. At least one of the first and second material layers is made of a plurality of nanoparticles. The thermoelectric material further includes at least one conductor which is extended in the stack direction of the stack structure.
Abstract:
Disclosed are a method of transferring graphene and a method of manufacturing a device using the same. The method of transferring graphene includes the steps of: forming a graphene layer on a substrate containing a base metal catalyst (for example, a semiconductor catalyst); forming a thin film on the graphene layer; and separating a lamination structure of the graphene layer and the thin film from the substrate. The base metal catalyst (for example, a semiconductor catalyst) may contain at least one among Ge and SiGe. The thin film may include an inorganic thin film and may have a single layered structure or a multi-layered structure. The step of separating a lamination structure from a substrate may be performed by a physical detachment process. After the step of separating the lamination structure from the substrate, a step of forming an organic film on the substrate may be further performed.
Abstract:
The moisture and temperature stability in the doped graphene is improved by forming a hydrophobic organic layer on the surface of the doped graphene on which dopants are doped. The degradation of the doped graphene can be prevented by the improved stability; thus, a transparent electrode comprising the doped graphene including a hydrophobic organic layer can be useful in a solar cell and a display device.
Abstract:
PURPOSE: A heterogeneous laminate including graphene, a thermoelectric material, a thermoelectric module, and a thermoelectric apparatus including the same are provided to increase a seebeck effect by using the temperature difference of a current. CONSTITUTION: A composite lamination includes graphene (1). The composite lamination includes a thermoelectric inorganic material (2). The graphene has two to a hundred layers. The graphene has a lamination structure. The graphene is formed by a physical or a chemical process.
Abstract:
PURPOSE: A method for manufacturing a graphene nano-ribbon and the graphene nano-ribbon manufactured by the same are provided to cost effectively manufacture the graphene nano-ribbon without a high vacuum machine or an expensive machine. CONSTITUTION: A method for manufacturing a graphene nano-ribbon includes the following: A sheet-shaped graphene is formed on at least one side of a substrate. A plasma mask with nano-patterns is formed on the graphene. The nano-patterns are formed on the graphene by implementing a plasma treating process with respect to the stacked body with the plasma mask. The plasma mask forming process includes an amorphous carbon stacking process and a nano-pattern forming process with respect to amorphous carbon. After the nano-patterns are formed on the graphene, the plasma mask is eliminated.
Abstract:
환원제를 이용하여 전자가 주입된 탄소 나노튜브(CNT)를 제조하는 방법과 이러한 방법을 통하여 제조된 탄소 나노튜브 및 그를 포함하는 전기 소자를 개시한다. 환원제를 이용하여 전자가 주입된 탄소 나노튜브는 환원제 처리 조건을 변화시킴으로써 탄소 나노튜브의 도핑 정도와 띠 간격 등의 전자적 특성을 광범위하고 용이하게 조절할 수 있는 특징이 있다. 탈도핑, 탄소 나노튜브, 환원제
Abstract:
PURPOSE: A carbon nano tube(CNT) n- doping material and a CNT n- doping method using thereof are provided to prevent a dedoping of a CNT during an n- doping process among air and moisture, and to maintain a stable doping state. CONSTITUTION: A CNT n- doping material includes more than two pyridinium derivatives inside the molecular structure. The material also contains a compound in the restored state. The compound is viologen selected from the group consisting of 1,1'dibenzyl-4,4'-bipyridinium dichloride, methyl viologen dichloride hydrate, ethyl viologen diperchlorate, 1,11dioctadecyl-4,4'-bipyridinium dibromide, or di-octyl bis(4-pyridyl)biphenyl viologen. A CNT n- doping method comprises a step of doping a CNT with the CNT n- doping material, and a step of removing a solvent from the CNT n- doping material.