http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
( Sabrina Aufar Salma ),진호철,( Ratna Dewi Maduwu ),정미진,이준호,손동환,김주현 한국공업화학회 2019 한국공업화학회 연구논문 초록집 Vol.2019 No.1
The new material for donor compromise indacedithieno[3,2-b]thiophene (IDTT) as donor moiety, phenylisoxazolone (OX) and malononitrile derivatives (EPMP-IDC) as acceptor moiety, named IDTT-OX and IDTT-EPMP-IDC have been successfully synthesized and investigated their photovoltaic performance for solution-processed bulk heterojunction organic solar cells (OSCs). IDTT-OX exhibits a strong self-aggregation behavior and broad absorption with an optical band gap of 1.88 eV, while IDTT-EPMP-IDC show better behavior with 1.60 eV optical band gab. The inverted-type devices based on IDTT-OX and IDTT-EPMP-IDC as a donor, PC71BM as an acceptor are fabricate to investigate the relationship of different functional group in donor unit. The power conversion effciency (PCE) of the optimized devices are achieved up to 0.29% for IDTT-OX and 2.07% for IDTT-EPMP-IDC.
( Sabrina Aufar Salma ),김동근,( Ratna Dewi Maduwu ),진호철,김주현 한국공업화학회 2018 한국공업화학회 연구논문 초록집 Vol.2018 No.0
Highly efficient and stable polymer solar cells (PSCs) have been fabricated by introducing interface dipoles at the cathode interface as a cathode buffer, which can greatly improve device performance by influencing the strength of interfacial dipoles in PSCs. By choosing suitable interfacial materials, the energetic barrier height at the interface could be reduced to form an ohmic contact with less series resistance, inducing high charge collection efficiency of the corresponding electrodes for holes or electrons. In this paper, we investigated the different types counteranions (CAs) on conjugated polymer electrolytes (CPEs) or polyelectrolytes based on a cationic polyviologen (PV) derivative as cathode buffer layer. The strength of interfacial dipoles in PSCs is affected by changing the CAs in PV derivatives.
Modification of Pyridine Based Cathode buffer layer in Polymer Solar Cells
( Sabrina Aufar Salma ),김동근,( Ratna Dewi Maduwu ),진호철,김주현 한국공업화학회 2018 한국공업화학회 연구논문 초록집 Vol.2018 No.0
Interfacial materials are essential to the performance and stability of polymer solar cells (PSCs). Here, we introduced the role of pyridine derivative as an efficient cathode buffer layer between the photoactive layer and Zn cathode. The work function of the cathode and energy barrier at the interfaces between the cathode and active layer was modified by changing interfacial dipole as different positions of hydroxide in pyridine. When using pyridine derivative instead of the traditionally used ITO/ZnO cathode in PSCs, the short-circuit current density (Jsc) is improved and the power conversion efficiency (PCE) of PSCs based device with pyridine buffer layer is increased. A better performance with PCE of different position is achieved when 2-hydroxy pyridine is chosen as buffer layers. The results indicate that pyridine derivative is a promising electron collection material as a substitute of the traditional low-work-function cathode.