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公开(公告)号:KR101400994B1
公开(公告)日:2014-05-29
申请号:KR1020070034875
申请日:2007-04-10
Applicant: 한국과학기술원
Abstract: 본 발명은 고용량 리튬 이차전지용 전극 및 이를 함유하는 리튬 이차전지에 관한 것으로, 보다 구체적으로는 충전 및 방전 수명을 향상시키고 높은 에너지 저장 용량을 가지는 리튬 이차전지를 제조하기 위해 탄소나노튜브(carbon nanotube; CNT) 또는 탄소나노파이버(carbon nanofiber; CNF)에 리튬과 합금을 형성할 수 있는 금속 또는 준금속 나노입자가 함유된 리튬 이차전지용 음극 및 이를 함유하는 리튬 이차전지에 관한 것이다.
본 발명에 따르면 리튬과 합금이 가능한 금속 또는 준금속 나노입자와 높은 비표면적과 우수한 전기전도도를 가지는 탄소나노튜브 또는 탄소나노파이버를 사용함으로써 높은 에너지 저장용량을 가지면서도 충전과 방전을 반복할 때 구조적 안정성에 의해 우수한 충·방전 수명을 리튬 이차 전지용 음극을 제조할 수 있어 고용량, 고에너지밀도 이차전지에 응용할 수 있다.
리튬, 이차전지, 전극, 축전지, 탄소나노튜브, 탄소나노파이버-
公开(公告)号:KR100359091B1
公开(公告)日:2003-01-24
申请号:KR1019980049474
申请日:1998-11-18
Abstract: PURPOSE: A device for motion estimation is provided so that the mean absolute difference among macro blocks is calculated by repeatedly using one basic searching unit consisting of systolic arrays having a minimum size for processing search blocks and search areas of a minimum size, for thereby making the processing speed higher and making the size of a chip smaller. CONSTITUTION: A device for motion estimation searches hierarchically upper levels through lower levels when the motion of each macro block of a current frame is estimated by comparison with that of a predetermined search area of a previous frame, in the case that original images are divided into images of a lower level(104), images of an intermediate level(102), and images of an upper level(100). A memory(814) stores current frame data and previous frame data. A basic searching unit(800) reads block data of a predetermined size of the current frame and search area data of the previous frame from the memory and outputs the matching criterion value of these data. A partial MAD storing unit(812) divides a search area into a block size, and stores and outputs an output value of the basic searching unit upon receipt of data in each divided search area and the block data, which is the value obtained by summing a previously stored value, in case of search at the lower level. A comparison unit(804) outputs an index of a corresponding searching point in the search area which is outputted from the partial MAD storing unit and has a minimum value by sequential comparison, wherein a searching is achieved at the lower level(104). An address generation unit(808) obtains a motion vector from the index when the searching is achieved at the lower level(104).
Abstract translation: 目的:提供一种用于运动估计的设备,以便通过重复使用一个基本搜索单元来计算宏块之间的平均绝对差值,从而使得由具有用于处理搜索块的最小尺寸的收缩阵列和最小尺寸的搜索区域组成的基本搜索单元 处理速度更高,芯片尺寸更小。 一种用于运动估计的设备,当在当前帧的每个宏块的运动通过与前一帧的预定搜索区域的运动相比较而被估计时,在原始图像被划分为 较低等级(104)的图像,中等等级(102)的图像和较高等级(100)的图像。 存储器(814)存储当前帧数据和先前帧数据。 基本搜索单元(800)从存储器读取当前帧的预定尺寸的块数据和前一帧的搜索区域数据,并输出这些数据的匹配标准值。 部分MAD存储单元(812)将搜索区域划分成块大小,并且在接收到每个划分的搜索区域中的数据和块数据时存储并输出基本搜索单元的输出值,该块数据是通过求和 以前存储的值,以便在较低级别搜索时使用。 比较单元(804)通过顺序比较输出从部分MAD存储单元输出的具有最小值的搜索区域中的相应搜索点的索引,其中在较低级别(104)实现搜索。 地址生成单元(808)在较低级别(104)处实现搜索时从索引获得运动矢量。
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公开(公告)号:KR1020090131461A
公开(公告)日:2009-12-29
申请号:KR1020080057357
申请日:2008-06-18
Applicant: 한국과학기술원
IPC: H01L51/42
CPC classification number: H01L51/0023 , B82Y10/00 , H01L51/0036 , H01L51/0037 , H01L51/0047 , H01L51/4253 , H01L51/442 , H01L51/447 , Y02E10/549 , Y02P70/521
Abstract: PURPOSE: An organic solar cell and a manufacturing method thereof are provided to improve conductivity by inserting a metal electrode inside a light active layer through a fine pattern. CONSTITUTION: A transparent electrode(2) is formed on a substrate(1). The substrate is a glass substrate or a flexible polymer substrate. A hole transfer layer(3) is formed on the transparent electrode. A light active layer(6) is formed on the hole transfer layer, and includes an electron donor material and an electron acceptor material. A pattern is formed on the light active layer by a nano imprint method. An electron transfer layer(7) is formed on the patterned light active layer. A cathode electrode(8) is formed on the electron transfer layer.
Abstract translation: 目的:提供一种有机太阳能电池及其制造方法,以通过将精细图案插入光活性层内来提高导电性。 构成:在基板(1)上形成透明电极(2)。 基板是玻璃基板或柔性聚合物基板。 在透明电极上形成空穴转移层(3)。 在空穴传输层上形成有光活性层(6),并包括电子给体材料和电子受体材料。 通过纳米压印法在光活性层上形成图案。 在图案化的有源层上形成电子转移层(7)。 在电子转移层上形成阴极电极(8)。
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公开(公告)号:KR1020080091883A
公开(公告)日:2008-10-15
申请号:KR1020070034875
申请日:2007-04-10
Applicant: 한국과학기술원
CPC classification number: H01M4/139 , C23C18/54 , H01M4/0457 , H01M4/1393 , H01M4/1395 , H01M10/0525 , Y02E60/122
Abstract: An electrode for a lithium secondary battery is provided to ensure an excellent charge and discharge lifetime by structural stability upon repetitive charging and discharging while retaining high energy storage capacity. A method for preparing an electrode for a lithium secondary battery includes the steps of: (a) dispersing carbon nanotubes or carbon nanofibers in a solvent to prepare a carbon nanotube or carbon nanofiber dispersion; (b) dispersing metal or metalloid nanoparticles capable of forming alloy with lithium in the carbon nanotube or carbon nanofiber dispersion to prepare a composite dispersion; and (c) applying the composite dispersion onto a current collector, and drying the composite dispersion.
Abstract translation: 提供了一种用于锂二次电池的电极,通过重复充放电时的结构稳定性,同时保持高能量储存能力,确保了优异的充放电寿命。 制备锂二次电池用电极的方法包括以下步骤:(a)将碳纳米管或碳纳米纤维分散在溶剂中以制备碳纳米管或碳纳米纤维分散体; (b)在碳纳米管或碳纳米纤维分散体中分散能够与锂形成合金的金属或准金属纳米粒子以制备复合分散体; 和(c)将复合分散体施加到集电体上,并干燥复合分散体。
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公开(公告)号:KR1020030034266A
公开(公告)日:2003-05-09
申请号:KR1020010051017
申请日:2001-08-23
Applicant: 한국과학기술원
IPC: H04N19/51
CPC classification number: H04N19/513 , H04N19/139 , H04N19/176 , H04N19/61
Abstract: PURPOSE: A fast block matching motion estimation method for a motion picture encoder is provided to improve speed and performance of motion estimation. CONSTITUTION: Horizontal or vertical integral projection with respect to macro-block of the current frame is obtained. A horizontal or vertical component for the motion vector of the current macro-block is predicted using previously calculated surrounding motion vectors. Horizontal or vertical integral projections with respect to pixels of candidate macro-blocks corresponding to the position indicated by the predicted horizontal or vertical component for a search region of the previous frame. A horizontal or vertical component of the motion vector having the minimum unimodal error is obtained using the horizontal or vertical integral projections. Horizontal or vertical integral projection with respect to only a part of pixels among a search region is acquired using the horizontal or vertical component of the above-obtained motion vector. A horizontal or vertical component of the motion vector having the minimum unimodal error is obtained using the horizontal or vertical integral projections. The final motion vector is acquired using the horizontal and vertical components.
Abstract translation: 目的:提供用于运动图像编码器的快速块匹配运动估计方法,以提高运动估计的速度和性能。 构成:获得相对于当前帧的宏块的水平或垂直积分投影。 使用先前计算的周围运动矢量来预测当前宏块的运动矢量的水平或垂直分量。 相对于与前一帧的搜索区域的预测水平或垂直分量指示的位置相对应的候选宏块的像素的水平或垂直整体投影。 使用水平或垂直积分投影获得具有最小单峰误差的运动矢量的水平或垂直分量。 使用上述获得的运动矢量的水平或垂直分量来获取相对于搜索区域中的仅一部分像素的水平或垂直积分投影。 使用水平或垂直积分投影获得具有最小单峰误差的运动矢量的水平或垂直分量。 使用水平和垂直分量获取最终运动矢量。
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公开(公告)号:KR100431075B1
公开(公告)日:2004-05-10
申请号:KR1020010051017
申请日:2001-08-23
Applicant: 한국과학기술원
IPC: H04N19/51
Abstract: PURPOSE: A fast block matching motion estimation method for a motion picture encoder is provided to improve speed and performance of motion estimation. CONSTITUTION: Horizontal or vertical integral projection with respect to macro-block of the current frame is obtained. A horizontal or vertical component for the motion vector of the current macro-block is predicted using previously calculated surrounding motion vectors. Horizontal or vertical integral projections with respect to pixels of candidate macro-blocks corresponding to the position indicated by the predicted horizontal or vertical component for a search region of the previous frame. A horizontal or vertical component of the motion vector having the minimum unimodal error is obtained using the horizontal or vertical integral projections. Horizontal or vertical integral projection with respect to only a part of pixels among a search region is acquired using the horizontal or vertical component of the above-obtained motion vector. A horizontal or vertical component of the motion vector having the minimum unimodal error is obtained using the horizontal or vertical integral projections. The final motion vector is acquired using the horizontal and vertical components.
Abstract translation: 目的:提供一种用于运动图像编码器的快速块匹配运动估计方法,以提高运动估计的速度和性能。 组成:获取当前帧的宏块的水平或垂直积分投影。 使用先前计算的周围运动矢量来预测当前宏块的运动矢量的水平或垂直分量。 针对与由前一帧的搜索区域的预测水平或垂直分量指示的位置相对应的候选宏块的像素的水平或垂直整体投影。 使用水平或垂直积分投影获得具有最小单峰误差的运动矢量的水平或垂直分量。 使用上述获得的运动矢量的水平分量或垂直分量来获取针对搜索区域中的仅一部分像素的水平或垂直整体投影。 使用水平或垂直积分投影获得具有最小单峰误差的运动矢量的水平或垂直分量。 最终的运动矢量是使用水平和垂直分量获取的。
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公开(公告)号:KR1020000032857A
公开(公告)日:2000-06-15
申请号:KR1019980049474
申请日:1998-11-18
CPC classification number: H04N19/43 , H04N19/137 , H04N19/176 , H04N19/51
Abstract: PURPOSE: A device for motion estimation is provided so that the mean absolute difference among macro blocks is calculated by repeatedly using one basic searching unit consisting of systolic arrays having a minimum size for processing search blocks and search areas of a minimum size, for thereby making the processing speed higher and making the size of a chip smaller. CONSTITUTION: A device for motion estimation searches hierarchically upper levels through lower levels when the motion of each macro block of a current frame is estimated by comparison with that of a predetermined search area of a previous frame, in the case that original images are divided into images of a lower level(104), images of an intermediate level(102), and images of an upper level(100). A memory(814) stores current frame data and previous frame data. A basic searching unit(800) reads block data of a predetermined size of the current frame and search area data of the previous frame from the memory and outputs the matching criterion value of these data. A partial MAD storing unit(812) divides a search area into a block size, and stores and outputs an output value of the basic searching unit upon receipt of data in each divided search area and the block data, which is the value obtained by summing a previously stored value, in case of search at the lower level. A comparison unit(804) outputs an index of a corresponding searching point in the search area which is outputted from the partial MAD storing unit and has a minimum value by sequential comparison, wherein a searching is achieved at the lower level(104). An address generation unit(808) obtains a motion vector from the index when the searching is achieved at the lower level(104).
Abstract translation: 目的:提供一种用于运动估计的装置,通过重复使用由具有处理搜索块的最小尺寸的收缩阵列和最小尺寸的搜索区组成的一个基本搜索单元来计算宏块之间的平均绝对差,从而使 处理速度更高,使芯片尺寸更小。 构成:当原始图像被划分为如下情况时,当通过与前一帧的预定搜索区域的运动估计比较来估计当前帧的每个宏块的运动时,用于运动估计的装置通过较低级别分级搜索。 较低级别(104)的图像,中间级别(102)的图像和上级(100)的图像。 存储器(814)存储当前帧数据和先前帧数据。 基本搜索单元(800)从存储器读取当前帧的预定大小的块数据和先前帧的搜索区域数据,并输出这些数据的匹配准则值。 部分MAD存储单元(812)将搜索区域划分为块大小,并且在每个划分的搜索区域中接收到数据并且存储并输出基本搜索单元的输出值,并且该块数据是通过求和获得的值 以前存储的值,在下一级搜索的情况下。 比较单元(804)输出从部分MAD存储单元输出的搜索区域中的对应搜索点的索引,并且通过顺序比较具有最小值,其中在较低级(104)处实现搜索。 地址生成单元(808)在下级(104)获取搜索时从索引获得运动矢量。
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公开(公告)号:KR100999377B1
公开(公告)日:2010-12-09
申请号:KR1020080057357
申请日:2008-06-18
Applicant: 한국과학기술원
IPC: H01L51/42
CPC classification number: H01L51/0023 , B82Y10/00 , H01L51/0036 , H01L51/0037 , H01L51/0047 , H01L51/4253 , H01L51/442 , H01L51/447 , Y02E10/549 , Y02P70/521
Abstract: 본 발명은 유기기반 태양전지 및 그의 제조방법에 관한 것으로, 보다 상세하게는 나노임프린트 방법을 이용하여 유기기반 태양전지의 광활성층에 미세패턴을 형성시키고, 미세한 패턴이 형성된 상기 광활성층에 캐소드 전극물질을 도포시킴으로써 캐소드 전극물질이 광활성층의 미세패턴 내부로 삽입되어 전자의 전도도를 향상시키고, 효율적인 전자의 이동경로를 제공하는 유기기반 태양전지를 제조하는 방법 및 상기 방법에 의해 제조되는 유기기반 태양전지에 관한 것이다.
본 발명에 따른 유기기반 태양전지 제조방법은 전자받게 물질의 뭉침으로 인한 광전류 손실을 줄일 수 있으며, 나노임프린트 과정에서 전자주게의 분자 배향성을 향상시켜 고효율 유기기반 태양전지를 제공할 수 있을 뿐만 아니라, 제조방법이 간단하고, 저렴한 비용으로 높은 효율을 가지는 태양전지를 제공함으로써 환경친화적이며, 재생가능한 에너지원을 활용할 수 있는 유기기반 태양전지 제조에 응용할 수 있다.
태양전지, 나노임프린트, 미세패턴, 거대이형접합
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