Son, Su-Young Noh, Yong-Jin Bok, Changsuk Lee, Sungho Kim, Byoung Gak Na, Seok-In Joh, Han-Ik 2024-01-20T11:00:14Z 2024-01-20T11:00:14Z 2021-09-05 2014-01 2040-3364 https://pubs.kist.re.kr/handle/201004/127290 Through a catalyst-and transfer-free process, we fabricated indium tin oxide (ITO)-free organic solar cells (OSCs) using a carbon nanosheet (CNS) with properties similar to graphene. The morphological and electrical properties of the CNS derived from a polymer of intrinsic microporosity-1 (PIM-1), which is mainly composed of several aromatic hydrocarbons and cycloalkanes, can be easily controlled by adjusting the polymer concentration. The CNSs, which are prepared by simple spin-coating and heat-treatment on a quartz substrate, are directly used as the electrodes of ITO-free OSCs, showing a high efficiency of approximately 1.922% under 100 mW cm(-2) illumination and air mass 1.5 G conditions. This catalyst-and transfer-free approach is highly desirable for electrodes in organic electronics. English ROYAL SOC CHEMISTRY CHEMICAL-VAPOR-DEPOSITION GRAPHENE OXIDE DIRECT GROWTH FILMS TRANSISTORS SAPPHIRE One-step synthesis of carbon nanosheets converted from a polycyclic compound and their direct use as transparent electrodes of ITO-free organic solar cells Article 10.1039/c3nr04828d 1 NANOSCALE, v.6, no.2, pp.678 - 682 NANOSCALE 6 2 678 682 scie scopus 000328892300002 2-s2.0-84890845750 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Chemistry Science & Technology - Other Topics Materials Science Physics Article CHEMICAL-VAPOR-DEPOSITION GRAPHENE OXIDE DIRECT GROWTH FILMS TRANSISTORS SAPPHIRE carbon nanosheet graphene organic photovoltaics polycyclic compound organic solar cells