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Song, Donghoon,Kang, Moon-Sung,Lee, Yong-Gun,Cho, Woohyung,Lee, Jung Hyun,Son, Taewook,Lee, Kyoung Jun,Nagarajan, S.,Sudhagar, P.,Yum, Jun-Ho,Kang, Yong Soo The Royal Society of Chemistry 2012 Physical chemistry chemical physics Vol.14 No.2
<p>A new I<SUP>−</SUP>/(SeCN)<SUB>2</SUB> redox mediator has favorable properties for dye-sensitized solar cells (DSCs) such as less visible light absorption, higher ionic conductivity, and downward shift of redox potential than I<SUP>−</SUP>/I<SUB>3</SUB><SUP>−</SUP>. It was then applied for DSCs towards increasing energy conversion efficiency, giving a new potential for improving performance.</p> <P>Graphic Abstract</P><P>A novel I<SUP>−</SUP>/(SeCN)<SUB>2</SUB> redox mediator, for the first time, showed favourable electrochemical properties for DSCs, resulting in an increased energy conversion efficiency. <img src='http://pubs.rsc.org/ej/CP/2011/c1cp23457a/c1cp23457a-ga.gif'> </P>
Song, Donghoon,Choi, Young-Seop,Kim, Byung Su,Kim, Hoon Sik,Kang, Yong Soo Elsevier 2019 Materials letters Vol.246 No.-
<P><B>Abstract</B></P> <P>Imidazoliums are commonly used ionic liquid cations in electrolyte in dye-sensitized solar cells (DSSCs). Here, the size effects of imidazolium cations bearing the cyanoethyl group on DSSC performance have been systematically investigated by introducing the different alkyl chains (C1–C12), by which size control is allowed in a range of 9–20 Å. The large cations slow down electron recombination and ion diffusion, but, unexpectedly, they suppress downward shift of TiO<SUB>2</SUB> conduction band significantly affecting on electron injection process. While all the cations used in this work demonstrate a better power conversion efficiency than that for the common imidazolium analogue, the interplay among the key processes results in the best performance with the medium-sized cation C4 (11 Å). This work paves a way for design of efficient electrolyte cations for photovoltaic devices.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Imidazolium ionic liquids are utilized in electrolytes in dye-sensitized solar cells. </LI> <LI> Cations in the ionic liquids are differently sized while bearing cyanoethyl group. </LI> <LI> Bulky cations exhibit slow I<SUB>3</SUB> <SUP>−</SUP> diffusion and electron recombination. </LI> <LI> But, unexpectedly, bulky cations suppress downward shift of TiO<SUB>2</SUB> conduction band. </LI> <LI> This interesting result is closely associated with function of cyanoethyl group. </LI> </UL> </P>
최동훈 ( Donghoon Choi ),엄정호 ( Jungho Um ),윤화묵 ( Hwa-mook Yoon ),최윤수 ( Yun-soo Choi ),이민호 ( Minho-lee ),이원구 ( Won-goo Lee ),송사광 ( Sa-kwang Song ),정한민 ( Hanmin Jung ) 한국정보처리학회 2012 한국정보처리학회 학술대회논문집 Vol.19 No.2
식물 염기 서열 분석은 동물에 비해 유전체가 길고 데이터 양이 많아 특별한 전략을 요구하고 있다. 본 논문은 FCLA 전략을 지원하기 위한 데이터 분석 플랫폼의 개발에 대해 서술한다.
항만 야드 트레일러 차량의 컨테이너 양적하 위치 유도기술 사례
김동훈(Donghoon Kim),송준엽(Junyeob Song),차석근(Sukkeun Cha),이승호(Seungho Lee) 한국자동차공학회 2010 한국자동차공학회 학술대회 및 전시회 Vol.2010 No.11
In this paper, we have attempted to analyze current situation and the problem of domestic and overseas harbor container delivery & cargo work automation centered around major harbors and to suggest effective way to deal with the issue in order to improve the productivity of container cargo work per crane, the major index of productivity of high value-added shipbuilding industry. In particular, we have suggested the way to realize effective automation system that can improve the efficiency of harbor container delivery & cargo work through the development of high-tech measuring automation technology using microwave radar and applied design that have broken away from traditional automation system and traditional problems such as dependence on manual work and the problem of laser method in which workers cannot identify laser beam under sunlight and workers’ eyesight can be weakened by being exposed to laser beam.
김동훈(Donghoon Kim),송준엽(Junyeob Song),차석근(Sukkeun Cha),최찬우(Chanwoo Cho) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
This paper introduces the case study on development of airbag safety sensor by supporting convenience for driver. Passenger Disable Switch(PDS) is desigend and evaluated by simulation process and operating test. And also, many related sensors were supported for performance test of PDS. The reliability of PDS was analyzed for safe operation and application in a moto vehicle.
무선통신 기반의 항만 야드 트레일러의 컨테이너 양적하 위치 유도 장치 개발 및 특성평가
김동훈(Donghoon Kim),송준엽(Junyeob Song),차석근(Sukkeun Cha),이승호(Seungho Lee) 한국자동차공학회 2011 한국자동차공학회 부문종합 학술대회 Vol.2011 No.5
In this paper, we have attempted to analyze current situation and the problem of domestic and overseas harbor container delivery & cargo work automation centered around major harbors and to suggest effective way to deal with the issue in order to improve the productivity of container cargo work per crane, the major index of productivity of high value-added shipbuilding industry. In particular, we have suggested the way to realize effective automation system that can improve the efficiency of harbor container delivery & cargo work through the development of high-tech measuring automation technology using microwave radar and applied design that have broken away from traditional automation system and traditional problems such as dependence on manual work and the problem of laser method in which workers cannot identify laser beam under sunlight and workers’ eyesight can be weakened by being exposed to laser beam.
효율적인 컨테이너 적양하를 위한 야드 트레일러 정차위치 유도장치 상용화를 위한 분석 및 연구
김동훈(Donghoon Kim),송준엽(Junyeob Song),이승호(Seungho Lee),강일용(Il-Young Kang) 한국자동차공학회 2011 한국자동차공학회 학술대회 및 전시회 Vol.2011 No.11
In this paper, we have attempted to analyze current situation and the problem of domestic and overseas harbor container delivery & cargo work automation centered around major harbors and to suggest effective way to deal with the issue in order to improve the productivity of container cargo work per crane, the major index of productivity of high value-added shipbuilding industry. In particular, we have suggested the way to realize effective automation system that can improve the efficiency of harbor container delivery & cargo work through the development of high-tech measuring automation technology using microwave radar and applied design that have broken away from traditional automation system and traditional problems such as dependence on manual work and the problem of laser method in which workers cannot identify laser beam under sunlight and workers" eyesight can be weakened by being exposed to laser beam.