123rd General Meeting of the KCS

Type Poster Presentation
Area Polymer Chemistry
Room No. Exhibition Hall 2
Time 4월 19일 (금요일) 11:00~12:30
Code POLY.P-21
Subject Single Component Active Layer Polymer Solar Cells with New Conjugated Copolymer Bearing Donor and Acceptor Blocks
Authors Su Hong Park, Hyung Jong Kim, Cheol Hun Jeong, Nayeon Kwon, Ji Hye Lee, Min Ju Cho, Sungnam Park*, Dong Hoon Choi*
Department of Chemistry, Korea University, Korea
Abstract A new conjugated copolymer bearing donor and acceptor blocks (O-BCP) for the single component active layer was successfully synthesized based on a relatively facile synthesis process which is high yield through one-pot polymerization and purification. The O-BCP contains PBDT-EH2T of p–type units and PNDI-Se of n–type blocks along the polymer chains. All properties of O-BCP were compared with those of blend samples of PBDT-EH2T and PNDI-Se. A single component active layer-PSCs based on as-cast film exhibited a PCE of 2.62%. (Voc = 0.77 V, Jsc = 8.90 mA/cm2, FF = 43.93%). However, through the thermal treatment at 180 oC for 10 min, the devices performance was remarkably improved to show intriguingly high Jsc and FF resulting in >4.57% of PCE. Compared to the O-BCP, the blend film displayed a relatively poor efficiency. (Voc = 0.72 V, Jsc = 6.28 mA/cm2, FF = 43.04%, PCE = 1.94%).
E-mail parkshsd@korea.ac.kr