123rd General Meeting of the KCS

Type Poster Presentation
Area Material Chemistry
Room No. Exhibition Hall 2
Time 4월 19일 (금요일) 11:00~12:30
Code MAT.P-455
Subject Fabrication of High Performance Hole Transporting Layers based on MoS2/PEDOT:PSS Hybrids for Organic Solar Cells
Authors Madeshwaran Sekkarapatti ramasamy, Dong Ha Kim*, Hannah Kwon
Department of Chemistry and Nano Science, Ewha Womans University, Korea
Abstract In recent years the massive increase of environmental pollution and global warming due to vast consumption of fossil fuels, has led researchers to intensify and focus on the study of renewable energy sources. Solar energy has emerged as the favorable solution for sustainable development. Organic Solar Cells (OSCs) have been considered as one of the most promising solar cell technologies because of their many striking properties such as solution processability, light weight, flexibility, and simple manufacturing process. In OSCs, the charge transporting layers plays an important role for determining the power conversion efficiency. In this work we report the fabrication of hybrid hole transporting layer (HTL) based on solution-processed MoS2 nanosheets and PEDOT:PSS for OSCs. As a strategy, we incorporated oleylamine functionalized 2D MoS2 nanosheets into PEDOT:PSS for improving the surface properties of PEDOT:PSS and as well as enhancing the hole extraction from the active layer. We achieved power conversion efficiency up to 3.74% for P3HT:PCBM based OSCs employing the hybrid HTL, which is 15.08% higher than that of reference cells with neat PEDOT:PSS as HTL. Solution-processed MoS2 nanosheets and hybrid HTL was characterized by range of complementary techniques such as Raman, UV-Visible, PL, AFM, TEM and impedance spectroscopy. We believe that the findings of this study can find significant importance in fabrication of 2D nanomaterials based HTL for OSCs.
E-mail srmadesh777@gmail.com