A novel method for graphene synthesis via electrochemical process and its utilization in organic photovoltaic devices

Dericiler, Kuray and Alishah, Hamed Moeini and Bozar, Sinem and Güneş, Serap and Kaya, Figen (2020) A novel method for graphene synthesis via electrochemical process and its utilization in organic photovoltaic devices. Applied Physics A: Materials Science and Processing, 126 (11). ISSN 0947-8396 (Print) 1432-0630 (Online)

Full text not available from this repository. (Request a copy)

Abstract

Graphene nanosheets have been prepared from fine graphite powders by a novel electrochemical exfoliation method using non-volatile sulfate salts. This new method utilizes a stainless steel wire cage and platinum wire electrodes to exfoliate pre-pelleted graphite powders into graphene sheets. Synthesized graphene samples have been characterized by Field Emission Scanning Electron Microscopy (FE-SEM), Raman spectroscopy, and Fourier Transform Infrared (FT-IR) spectroscopy. The obtained supernatant shows a stable suspension in DMF. This suspension was then used in organic solar cells (OSCs) as an additive to poly(3,4-ethylene dioxythiophene) polystyrene sulfonate (PEDOT:PSS). Organic solar cells have been prepared using Indium Tin Oxide (ITO) as the transparent conducting oxide, PEDOT:PSS-Graphene as the hole transport layer (HTL), Poly(3-hexylthiophene-2,5-diyl:[6,6]-Phenyl-C60-butyric acid methyl ester (P3HT:PCBM) as the active layer and Aluminum as the cathode, in ITO/PEDOT:PSS-Graphene/P3HT:PCBM/Al configuration. The photovoltaic cell prepared with graphene as an additive inside PEDOT:PSS exhibited over 66% improvement compared to the reference cells employing pure PEDOT:PSS.
Item Type: Article
Uncontrolled Keywords: Electrochemical; Graphene; Organic; Photovoltaic; Solar; Synthesis
Divisions: Faculty of Engineering and Natural Sciences > Academic programs > Materials Science & Eng.
Faculty of Engineering and Natural Sciences
Depositing User: Kuray Dericiler
Date Deposited: 04 Aug 2023 15:30
Last Modified: 04 Aug 2023 15:30
URI: https://research.sabanciuniv.edu/id/eprint/46916

Actions (login required)

View Item
View Item