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

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. Synthes...

Full description

Saved in:
Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2020, Vol.126 (11), Article 904
Main Authors: Dericiler, Kuray, Alishah, Hamed Moeini, Bozar, Sinem, Güneş, Serap, Kaya, Figen
Format: Article
Language:English
Subjects:
Aluminum
Applied physics
Buckminsterfullerene
Butyric acid
Characterization and Evaluation of Materials
Condensed Matter Physics
Field emission microscopy
Fourier transforms
Fullerenes
Graphene
Graphite
Indium tin oxides
Infrared spectroscopy
Machines
Manufacturing
Materials science
Nanotechnology
Optical and Electronic Materials
Photovoltaic cells
Physics
Physics and Astronomy
Platinum
Polystyrene resins
Processes
Raman spectroscopy
Solar cells
Spectrum analysis
Stainless steels
Steel wire
Surfaces and Interfaces
Thin Films
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-020-04091-3