http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Jeong, Inyoung,Jung, Heesuk,Park, Minwoo,Park, Joon Suh,Son, Hae Jung,Joo, Jin,Lee, Jinwoo,Ko, Min Jae Elsevier 2016 Nano energy Vol.28 No.-
<P><B>Abstract</B></P> <P>To realize high-performance flexible perovskite solar cells (PSCs), electron selective layers (ESL) that can be processed at low temperatures are required. Here, we develop UV-assisted solution process to prepare highly compact Nb-doped TiO<SUB>2</SUB> (UV-Nb:TiO<SUB>2</SUB>) ESLs at low temperature (<50°C). Highly crystalline TiO<SUB>2</SUB> nanocrystals (NCs) stabilized with oleic acid are synthesized and the highly dispersed TiO<SUB>2</SUB> NCs solution is spin-coated, followed by UV treatment. The UV exposure induces photocatalytic removal of the organic ligands and spontaneous coalescence of the TiO<SUB>2</SUB> NCs, resulting in highly uniform and compact TiO<SUB>2</SUB> thin films. The UV-processed TiO<SUB>2</SUB> layer (UV-TiO<SUB>2</SUB>) shows higher transmittance and a better blocking effect, compared to a conventional TiO<SUB>2</SUB> layer (HT-TiO<SUB>2</SUB>) prepared by high temperature sintering process. Furthermore, Nb doping of the TiO<SUB>2</SUB> NCs improves the electrical conductivity and gives rise to a downward shift of the conduction band, enhancing the charge extraction. Thanks to the advantages, PSCs based on UV-Nb:TiO<SUB>2</SUB> ESLs show improved photovoltaic performances and less hysteresis, compared to the HT-TiO<SUB>2</SUB> ESL. The best-performing PSCs based on UV-Nb:TiO<SUB>2</SUB> ESL exhibit outstanding power conversion efficiencies of 19.57% and 16.01% for rigid and flexible substrates, respectively.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Low-temperature solution processed TiO<SUB>2</SUB> ESL is developed for high-performance PSCs. </LI> <LI> Nb doping of TiO<SUB>2</SUB> ESL improves photovoltaic performances of PSCs. </LI> <LI> Champion cells exhibit PCE of 19.57% for rigid and 16.01% for flexible substrates. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Seo, Myung-Seok,Jeong, Inyoung,Park, Joon-Suh,Lee, Jinwoo,Han, Il Ki,Lee, Wan In,Son, Hae Jung,Sohn, Byeong-Hyeok,Ko, Min Jae The Royal Society of Chemistry 2016 Nanoscale Vol.8 No.22
<P>We fabricated perovskite solar cells with enhanced device efficiency based on vertically oriented TiO2 nanostructures using a nanoporous template of block copolymers (BCPs). The dimension and shape controllability of the nanopores of the BCP template allowed for the construction of one-dimensional (1-D) TiO2 nanorods and two-dimensional (2-D) TiO2 nanowalls. The TiO2 nanorod-based perovskite solar cells showed a more efficient charge separation and a lower charge recombination, leading to better performance compared to TiO2 nanowall-based solar cells. The best solar cells employing 1-D TiO2 nanorods showed an efficiency of 15.5% with V-OC = 1.02 V, J(SC) = 20.0 mA cm(-2) and fill factor = 76.1%. Thus, TiO2 nanostructures fabricated from BCP nanotemplates could be applied to the preparation of electron transport layers for improving the efficiency of perovskite solar cells.</P>
정상민(SangMin Jung),김왕문(WangMoon Kim),서인영(InYoung Suh) 전력전자학회 2010 전력전자학술대회 논문집 Vol.2010 No.11
본 논문은 10㎾급 태양광발전용 전력변환기 개발에 관한 것이다. 개발 중인 10㎾급 태양광발전용 전력변환기는 3레벨토폴로지를 적용하였으며 무변압기형으로 설계되었다. 2개의 MPP(Maximum Power Point) trackers를 가지고 있으며 실외형으로 설계되어 설치 장소에 제약을 받지 않는다.
장수진(SuJin Jang),고병현(ByengHyen Ko),서인영(InYoung Suh) 전력전자학회 2010 전력전자학술대회 논문집 Vol.2010 No.11
본 논문은 당사에서 개발한 250㎾ 태양광 인버터의 실증운전에 관한 내용이다. R&D 단계에서의 제품 시험은 실 사용 환경에서 발생하는 이상 동작 원인을 검증할 수 없다. 또한, 주위환경(온도, 일사량 등)에 따라 발전량이 수시로 변동하므로 고품질의 전력을 생산하기 어렵다. 따라서, 태양광 인버터와 같이 주위 환경에 영향을 많이 받는 제품은 제품 출시 전 실제사용 환경을 고려한 대책 설계/제어가 필수이다. 당사에서는 개발 제품의 신뢰성을 확인하고자 태양광 인버터를 실 사용 환경에 적용하여 장기 연속 운전하고 있으며, 실증운전을 통해 수집된 결과를 비교/분석하여 제품 개발에 활용하고 있다.
Development of A Power Conditioning System for A 100kW MCFC Generation System
Hongju Jung,Hyoungnam Kwon,Joonmo Chung,Inyoung Suh,HeeCheon Lim,KyoSang Ahn 전력전자학회 2004 ICPE(ISPE)논문집 Vol.- No.-
This paper presents the development and testing of a power conditioning system (PCS) for application to a 100kW Molten Carbonate Fuel Cell (MCFC) generation system. The MCFC generation system is a part of a four year government funded research project that began in 2001. This paper presents the results of various tests and performance verification of the 100kW PCS using a DC power system that simulates the DC output of the MCFC fuel cell. Performance of the DC/DC, DC/AC converters were verified, and basic<br/> control functions such as grid connection, protection and characteristics of each component were tested. The tests were<br/> performed under light load and rated load conditions to verify the operation efficiency, power quality effects, and stability of the PCS.
강호현(Hohyun Kang),정홍주(Hongju Jung),김왕문(Wangmun Kim),서인영(Inyoung Suh) 전력전자학회 2008 전력전자학술대회 논문집 Vol.- No.-
This paper presents the design, development and performance of a 250㎾ power conditioning system(PCS) for large scale photovoltaic power plant. The PV inverter consists of a three phase IGBT stack, L-C filter, transformer and HMI unit for monitoring. To verify the performance of the PV inverter a testing facility was designed and constructed to simulate the characteristics of the solar cell and grid.