Abstract:
본 발명은 광굴절 덴드론 화합물, 이를 이용한 광굴절 덴드리머 화합물 및 이의 응용방법에 관한 것으로서, 보다 상세하게는 트리시아노 피롤린(tricyanopyrroline) 계열의 전자끌게를 함유하는 비선형 발색단 및 전하수송 특성이 우수한 카바졸 유도체를 포함하는 광굴절 덴드론 화합물, 상기 광굴절 덴드론 화합물의 제조방법, 상기 광굴절 덴드론 화합물을 이용하여 제조된 광굴절 덴드리머 화합물 및 그의 제조방법, 상기 광굴절 덴드리머 화합물이 포함된 광굴절 소자 및 상기 광굴절 소자의 제조방법에 관한 것이다. 본 발명의 광굴절 덴드리머 화합물은 덴드론에 비선형 광학 발색단과 카바졸을 도입하여 한분자내에 광전도성과 비선형광학 특성을 동시에 부여함으로써 종래 광굴절 재료에서 광전도성물질과 발색단 사이의 좋지 못한 상용성으로 인해 야기되는 안정성 문제를 해결할 수 있으며, 아울러 근적외선 감응형 비선형광학 발색단을 사용함으로써 생물학적 이미징 기술에 응용할 수 있다. 광굴절 덴드리머, 트리시아노 피롤린, 카바졸 유도체
Abstract:
A photorefractive dendrimer compound is provided to show the photoconductivity and non-linear optical characteristics in one molecule by introducing a nonlinear chromophore and a carbazole into dendron, thereby solving a problem of stability caused by bad compatibility between a photoconductive material and a chromophore and being applicable to a biological imaging technique. A photorefractive dendrimer compound including a carbazole derivative showing excellent non-linear chromophore and charge transporting characteristic containing a tricyanopyrroline-based electron acceptor is represented by a formula(1), wherein A is a group(1) or a group(2), and R consists of 1-20 carbon(s). A photorefractive device comprises the photorefractive dendrimer compound. A method for preparing the device comprises the steps of: (a) dropping a keyhole shaped indium tin oxide transparent electrode on a glass substrate; (b) after dropping the photorefractive dendrimer compound on the electrode, drying it to remove solvent therefrom and vacuum-drying it; (c) after coupling a spacer to a corner of the dried indium tin oxide glass sample, heating the sample up to a temperature of at least glass transition temperature to push down gradually a second indium tin oxide glass on the sample and cooling it; and (d) sealing the substrate using an epoxy or a polyimide film, attaching the electrode thereto.
Abstract:
신규한 엑스모양 공액형 유기 화합물, 이를 이용한 염료감응 광전변환소자 및 염료감응 태양전지가 개시된다. 본 발명에 따른 엑스모양 공액형 유기 화합물은 2개의 전자공여체(electron donor)와, 금속 산화물에 흡착을 위한 -COOH 그룹을 포함하는 2개의 전자수용체(electron acceptor)가 각각 벤젠을 중심으로 π-컨쥬게이션을 이룰 수 있게 결합된 것을 특징으로 하며, 이를 염료감응 태양전지의 유기염료로 이용하는 경우 금속산화물과 강한 흡착력을 가지며, 몰흡광계수 및 광전기 변환효율을 향상시킬 수 있어, 기존에 사용되는 고가의 금속 착체를 대체하는 것이 가능하다. 염료감응태양전지
Abstract:
The present invention relates to a diketopyrrolopyrrole and tellurophene-based polymer derivative, and an organic semiconductor thin film and an organic thin film transistor comprising the same, which produce and use the diketopyrrolopyrrole-based polymer derivative with excellent solubility in regular solvent, denoted by chemical formula 2, thereby providing the organic thin film transistor with excellent hole mobility and thermal stability.
Abstract:
PURPOSE: An X-shape conjugated organic compound and dye sensitive photoelectric conversion device and solar cell are provided to ensure strong adsorption with a metal oxide and to improve photoelectric conversion efficiency. CONSTITUTION: An X-shape conjugated organic compound contains two electron donors and two electron acceptors having -COOH group for adsorbing to a metal oxide. The electron donor is carbazole, phenoxyazine, thiophene, trianylamine, or a derivative thereof. The electron acceptor is cyanoacrylic acid, rhodanin-3-acetic acid, or a derivative thereof. The X-shape conjugated organic compound is denoted by chemical formula 1 or 2. A dye sensitive photoelectric conversion device contains an oxide semiconductor microsphere. The dye sensitive solar cell contains the device.
Abstract:
A light emitting dendrimer intermediate, a method for preparing the light emitting dendrimer intermediate, a novel light emitting dendrimer, a method for preparing the light emitting dendrimer, and an organic light emitting diode device prepared from the dendrimer are provided to improve luminous efficiency and to allow an organic light emitting layer to be prepared by a wet process. A light emitting dendrimer intermediate comprises any one selected from an azine-based derivative, a carbazole-based derivative and their mixture and is represented by the formula 1 or 2, wherein X is S or O, and R is a C1-C10 alkyl group. The light emitting dendrimer comprises a core which comprises a light emitting compound; and a dendron which comprises the light emitting dendrimer intermediate of the formula 1 or 2, and surrounds the core.