Graphene-beaded carbon nanofibers with incorporated Ni nanoparticles as efficient counter-electrode for dye-sensitized solar cells

Zhengping Zhou, Sudhan Sigdel, Jiawei Gong, Bjorn Vaagensmith, Hytham Elbohy, Huojun Yang, Sumathy Krishnan, Xiang Fa Wu, Qiquan Qiao

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

A novel porous three dimensional (3D) hierarchical graphene-beaded carbon nanofibers with incorporated Ni nanoparticles (G/CNFs-Ni) were used for the first time as cost-effective counter-electrode for dye-sensitized solar cells (DSCs). G/CNFs-Ni was synthesized by electrospinning G/PAN/Ni(AcAc)2 precursor nanofibers, followed by carbonization and activation. The introduction of graphene nanosheets and Ni nanoparticles in CNF networks significantly increased the cells' stability and decreased the charge-transfer resistance at the interface between electrolyte and counter-electrode, leading to the high electrocatalytic activity/efficiency for triiodide reduction. The G/CNFs-Ni composite counter-electrodes possessed larger capacitance than that of Pt counter-electrodes due to larger specific surface area, leading to significantly higher electrocatalytic activity/efficiency for triiodide reduction at the interface between electrolyte and counter-electrode. The dye-sensitized solar cells (DSCs) fabricated using G/CNFs-Ni composite as counter-electrodes were tested at 100 mW/cm2 AM 1.5 illumination. The G/CNFs-Ni composite exhibited an overall power conversion efficiency of 7.14% as compared to 7.59% for reference platinum (Pt) counter-electrodes.

Original languageEnglish (US)
Pages (from-to)558-563
Number of pages6
JournalNano Energy
Volume22
DOIs
StatePublished - Apr 1 2016

Fingerprint

Carbon nanofibers
Graphite
Graphene
Nanoparticles
Electrodes
Platinum
Electrolytes
Composite materials
Nanosheets
Carbonization
Electrospinning
Nanofibers
Dye-sensitized solar cells
Specific surface area
Conversion efficiency
Charge transfer
Capacitance
Lighting
Chemical activation
Costs

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Electrical and Electronic Engineering

Cite this

Zhou, Zhengping ; Sigdel, Sudhan ; Gong, Jiawei ; Vaagensmith, Bjorn ; Elbohy, Hytham ; Yang, Huojun ; Krishnan, Sumathy ; Wu, Xiang Fa ; Qiao, Qiquan. / Graphene-beaded carbon nanofibers with incorporated Ni nanoparticles as efficient counter-electrode for dye-sensitized solar cells. In: Nano Energy. 2016 ; Vol. 22. pp. 558-563.
@article{d2a5bcab88e54b0c9ffb3c5a830772af,
title = "Graphene-beaded carbon nanofibers with incorporated Ni nanoparticles as efficient counter-electrode for dye-sensitized solar cells",
abstract = "A novel porous three dimensional (3D) hierarchical graphene-beaded carbon nanofibers with incorporated Ni nanoparticles (G/CNFs-Ni) were used for the first time as cost-effective counter-electrode for dye-sensitized solar cells (DSCs). G/CNFs-Ni was synthesized by electrospinning G/PAN/Ni(AcAc)2 precursor nanofibers, followed by carbonization and activation. The introduction of graphene nanosheets and Ni nanoparticles in CNF networks significantly increased the cells' stability and decreased the charge-transfer resistance at the interface between electrolyte and counter-electrode, leading to the high electrocatalytic activity/efficiency for triiodide reduction. The G/CNFs-Ni composite counter-electrodes possessed larger capacitance than that of Pt counter-electrodes due to larger specific surface area, leading to significantly higher electrocatalytic activity/efficiency for triiodide reduction at the interface between electrolyte and counter-electrode. The dye-sensitized solar cells (DSCs) fabricated using G/CNFs-Ni composite as counter-electrodes were tested at 100 mW/cm2 AM 1.5 illumination. The G/CNFs-Ni composite exhibited an overall power conversion efficiency of 7.14{\%} as compared to 7.59{\%} for reference platinum (Pt) counter-electrodes.",
author = "Zhengping Zhou and Sudhan Sigdel and Jiawei Gong and Bjorn Vaagensmith and Hytham Elbohy and Huojun Yang and Sumathy Krishnan and Wu, {Xiang Fa} and Qiquan Qiao",
year = "2016",
month = "4",
day = "1",
doi = "10.1016/j.nanoen.2016.03.003",
language = "English (US)",
volume = "22",
pages = "558--563",
journal = "Nano Energy",
issn = "2211-2855",
publisher = "Elsevier BV",

}

Graphene-beaded carbon nanofibers with incorporated Ni nanoparticles as efficient counter-electrode for dye-sensitized solar cells. / Zhou, Zhengping; Sigdel, Sudhan; Gong, Jiawei; Vaagensmith, Bjorn; Elbohy, Hytham; Yang, Huojun; Krishnan, Sumathy; Wu, Xiang Fa; Qiao, Qiquan.

In: Nano Energy, Vol. 22, 01.04.2016, p. 558-563.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Graphene-beaded carbon nanofibers with incorporated Ni nanoparticles as efficient counter-electrode for dye-sensitized solar cells

AU - Zhou, Zhengping

AU - Sigdel, Sudhan

AU - Gong, Jiawei

AU - Vaagensmith, Bjorn

AU - Elbohy, Hytham

AU - Yang, Huojun

AU - Krishnan, Sumathy

AU - Wu, Xiang Fa

AU - Qiao, Qiquan

PY - 2016/4/1

Y1 - 2016/4/1

N2 - A novel porous three dimensional (3D) hierarchical graphene-beaded carbon nanofibers with incorporated Ni nanoparticles (G/CNFs-Ni) were used for the first time as cost-effective counter-electrode for dye-sensitized solar cells (DSCs). G/CNFs-Ni was synthesized by electrospinning G/PAN/Ni(AcAc)2 precursor nanofibers, followed by carbonization and activation. The introduction of graphene nanosheets and Ni nanoparticles in CNF networks significantly increased the cells' stability and decreased the charge-transfer resistance at the interface between electrolyte and counter-electrode, leading to the high electrocatalytic activity/efficiency for triiodide reduction. The G/CNFs-Ni composite counter-electrodes possessed larger capacitance than that of Pt counter-electrodes due to larger specific surface area, leading to significantly higher electrocatalytic activity/efficiency for triiodide reduction at the interface between electrolyte and counter-electrode. The dye-sensitized solar cells (DSCs) fabricated using G/CNFs-Ni composite as counter-electrodes were tested at 100 mW/cm2 AM 1.5 illumination. The G/CNFs-Ni composite exhibited an overall power conversion efficiency of 7.14% as compared to 7.59% for reference platinum (Pt) counter-electrodes.

AB - A novel porous three dimensional (3D) hierarchical graphene-beaded carbon nanofibers with incorporated Ni nanoparticles (G/CNFs-Ni) were used for the first time as cost-effective counter-electrode for dye-sensitized solar cells (DSCs). G/CNFs-Ni was synthesized by electrospinning G/PAN/Ni(AcAc)2 precursor nanofibers, followed by carbonization and activation. The introduction of graphene nanosheets and Ni nanoparticles in CNF networks significantly increased the cells' stability and decreased the charge-transfer resistance at the interface between electrolyte and counter-electrode, leading to the high electrocatalytic activity/efficiency for triiodide reduction. The G/CNFs-Ni composite counter-electrodes possessed larger capacitance than that of Pt counter-electrodes due to larger specific surface area, leading to significantly higher electrocatalytic activity/efficiency for triiodide reduction at the interface between electrolyte and counter-electrode. The dye-sensitized solar cells (DSCs) fabricated using G/CNFs-Ni composite as counter-electrodes were tested at 100 mW/cm2 AM 1.5 illumination. The G/CNFs-Ni composite exhibited an overall power conversion efficiency of 7.14% as compared to 7.59% for reference platinum (Pt) counter-electrodes.

UR - http://www.scopus.com/inward/record.url?scp=84959933441&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84959933441&partnerID=8YFLogxK

U2 - 10.1016/j.nanoen.2016.03.003

DO - 10.1016/j.nanoen.2016.03.003

M3 - Article

AN - SCOPUS:84959933441

VL - 22

SP - 558

EP - 563

JO - Nano Energy

JF - Nano Energy

SN - 2211-2855

ER -