Graphene: Synthesis, transfer, and characterization for dye-sensitized solar cells applications

David Dodoo-Arhin; Mopeli Fabiane; Abdulhakeem Bello; Ncholu Manyala

doi:10.1021/ie4017489

Graphene: Synthesis, transfer, and characterization for dye-sensitized solar cells applications

David Dodoo-Arhin
, Mopeli Fabiane
, Abdulhakeem Bello
, Ncholu Manyala

Institute of Applied Science and Technology

University of Pretoria

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

Large area graphene films with varying growth time thicknesses were synthesized by chemical vapor deposition (CVD) on copper foil and transferred to other substrates for characterization and photovoltaic applications. Scanning tunneling microscopy, Raman spectroscopy, and imaging show films with high crystallinity, low defect density, I_2D/I_G ratio of 0.52-2.26, and the presence of continuous graphene sheets with optical transparency of 75.7%-96.8%. The use of CVD graphene sheets as counter electrode in dye-sensitized solar cells was explored. The short circuit current density (J_sc), the open circuit current (V_oc), the fill factor (FF), and the overall conversion efficiency under AM 1.5, 100 mW cm^-2 illumination are 12.7 mA/cm², 544.8 mV, 57.5% and 3.8%, respectively.

Original language	English
Pages (from-to)	14160-14168
Number of pages	9
Journal	Industrial and Engineering Chemistry Research
Volume	52
Issue number	39
DOIs	https://doi.org/10.1021/ie4017489
Publication status	Published - 2 Oct 2013

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title = "Graphene: Synthesis, transfer, and characterization for dye-sensitized solar cells applications",

abstract = "Large area graphene films with varying growth time thicknesses were synthesized by chemical vapor deposition (CVD) on copper foil and transferred to other substrates for characterization and photovoltaic applications. Scanning tunneling microscopy, Raman spectroscopy, and imaging show films with high crystallinity, low defect density, I2D/IG ratio of 0.52-2.26, and the presence of continuous graphene sheets with optical transparency of 75.7\%-96.8\%. The use of CVD graphene sheets as counter electrode in dye-sensitized solar cells was explored. The short circuit current density (Jsc), the open circuit current (Voc), the fill factor (FF), and the overall conversion efficiency under AM 1.5, 100 mW cm-2 illumination are 12.7 mA/cm2, 544.8 mV, 57.5\% and 3.8\%, respectively.",

author = "David Dodoo-Arhin and Mopeli Fabiane and Abdulhakeem Bello and Ncholu Manyala",

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T2 - Synthesis, transfer, and characterization for dye-sensitized solar cells applications

AU - Dodoo-Arhin, David

AU - Fabiane, Mopeli

AU - Bello, Abdulhakeem

AU - Manyala, Ncholu

PY - 2013/10/2

Y1 - 2013/10/2

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AB - Large area graphene films with varying growth time thicknesses were synthesized by chemical vapor deposition (CVD) on copper foil and transferred to other substrates for characterization and photovoltaic applications. Scanning tunneling microscopy, Raman spectroscopy, and imaging show films with high crystallinity, low defect density, I2D/IG ratio of 0.52-2.26, and the presence of continuous graphene sheets with optical transparency of 75.7%-96.8%. The use of CVD graphene sheets as counter electrode in dye-sensitized solar cells was explored. The short circuit current density (Jsc), the open circuit current (Voc), the fill factor (FF), and the overall conversion efficiency under AM 1.5, 100 mW cm-2 illumination are 12.7 mA/cm2, 544.8 mV, 57.5% and 3.8%, respectively.

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ER -

Graphene: Synthesis, transfer, and characterization for dye-sensitized solar cells applications

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