Graphene/carbon nanotubes composites as a counter electrode for dye-sensitized solar cells

Battumur, T.; Mujawar, S.H.; Truong, Quoc; Ambade, Swapnil B.; Lee, Dai Soo; Lee, Wonjoo; Han, Sung‐Hwan; Lee, Soo-Hyoung

doi:10.1016/j.cap.2011.04.028

Cited by 96 publications

(27 citation statements)

References 34 publications

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“…In their experiment, graphene layers were firstly deposited on a SiO 2 /Si substrate by using a dropcasting method. This optimized content of CNTs (60 wt %) in the CNT-graphene composite film was further confirmed by Battumur et al [96] They used Triton X-100 as a hydrophilic surfactant for the successful preparation of MWCNT-graphene composite pastes. The device fabricated with such a MWCNT-graphene film showed a power conversion efficiency of only 3.0 %.…”

Section: Cnt-graphene Compositessupporting

confidence: 52%

Dye‐Sensitized Solar Cell Counter Electrodes Based on Carbon Nanotubes

Hwang¹,

Batmunkh²,

Nine³

et al. 2014

ChemPhysChem

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Dye-sensitized solar cells (DSSCs) have received significant attention from the scientific community since their discovery in 1991. However, the high cost and scarcity of platinum has motivated researchers to seek other suitable materials for the counter electrode of DSSCs. Owing to their exceptional properties such as high conductivity, good electrochemical activity, and low cost, carbon nanotubes (CNTs) have been considered as promising alternatives to expensive platinum (Pt) in the counter electrode of DSSCs. Herein, we provide a Minireview of the CNTs use in the counter electrode of DSSCs. A brief overview of Pt-based counter electrodes is also discussed. Particular attention is given to the recent advances of counter electrodes with CNT-based composite structures.

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Section: Cnt-graphene Compositessupporting

confidence: 52%

Dye‐Sensitized Solar Cell Counter Electrodes Based on Carbon Nanotubes

Hwang¹,

Batmunkh²,

Nine³

et al. 2014

ChemPhysChem

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“…The I D /I G ratio reflects the degree of disorder, as expressed in the sp 3 /sp 2 carbon ratio [28]. The I D /I G ratio of ACFs was determined to be 1.17.…”

Section: Raman Spectramentioning

confidence: 99%

Fabrication of Ni nanoparticles-dispersed carbon micro-nanofibers as the electrodes of a microbial fuel cell for bio-energy production

Singh

Verma

2015

International Journal of Hydrogen Energy

100

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“…The Ag-PPy-FMWCNTS nanocomposite CE indicates the highest current density for reduction peak of I 3 − in four counter electrodes fabricated in this research work which shows a higher electrocatalytic activity and small value of charge transfer resistance on the Ag-PPy-FMWCNTS nanocomposite CE than that on PPy, PPy-FMMWCNTS and Pt electrodes. 27,[52][53][54] The cathodic current density (shown in table I) increases in the order of Ag-PPy-FMWCNTS <Pt< PPy-FMWCNTS < PPy representing the same order of electro catalytic activity.…”

Section: -mentioning

confidence: 91%

“…[13][14][15] In recent decades various carbon nanomaterials such as amorphous carbon, carbon nanotubes carbon black, and Graphene/carbon nanotubes composites have been employed as a promising alternative to Pt CE owing to their affordable cost, large electrical conductivity, corrosion resistance, and excellent catalytic activity. [16][17][18][19][20][21][22][23][24] Among them, carbon nanotubes have been widely reported as an efficient alternative platinum CE owing to their extraordinary attractive features, notably high conductivity, fast electron transport and high surface area, but their electro catalytic activity for I 3 − reduction are poor. [25][26][27][28] Therefore power conversion efficiency of DSSCs with carbon CEs are still insufficient and should be improved for large scale applications.…”

Section: Introductionmentioning

confidence: 99%

Facile fabrication of novel silver-polypyrrole-multiwall carbon nanotubes nanocomposite for replacement of platinum in dye-sensitized solar cell

et al. 2016

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This paper demonstrates the facile synthesis of high performance silver-polypyrrole-multiwall carbon nanotubes (Ag-PPy-FMWCNTS) nanocomposites via electrodeposition method on stainless steel substrate and its application as a low cost counter electrode (CE) for the precious platinum (Pt) free DSSC. The nanocomposites were characterized by variety of techniques such as Fourier transforms infrared (FTIR), X-ray diffraction, Scanning electron microscope (SEM), cyclic voltammetry (CV) and Four probe technique respectively. The cyclic voltammetry and Tafel polymerization measurements of Ag-PPy-FMWCNTS nanocomposites CE reveal the favorable electrocatalytic activity and low charge transfer resistance Rct(2.50 Ω cm2) for I3−/I− redox solution. The four probe studies showed the large electrical conductivity (226S cm−1) of Ag-PPy-FMWCNTS nanocomposite. The DSSC assembled with Ag-PPy-FMWCNTS nanocomposites CE display the considerable short circuit current density (13.95 mA cm−2) and acceptable solar to electrical conversion efficiency of 7.6%, which is higher to the efficiency of DSSC with thermally decomposed Pt reference electrode 7.1%. The excellent conversion efficiency, rapid charge transfer in combination with low cost and simple fabrication method of Ag-PPy-FMWCNTS nanocomposites can be exploited as an efficient and potential candidate to replace the Pt CE for large scale production of DSSC.

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Graphene/carbon nanotubes composites as a counter electrode for dye-sensitized solar cells

Cited by 96 publications

References 34 publications

Dye‐Sensitized Solar Cell Counter Electrodes Based on Carbon Nanotubes

Dye‐Sensitized Solar Cell Counter Electrodes Based on Carbon Nanotubes

Fabrication of Ni nanoparticles-dispersed carbon micro-nanofibers as the electrodes of a microbial fuel cell for bio-energy production

Facile fabrication of novel silver-polypyrrole-multiwall carbon nanotubes nanocomposite for replacement of platinum in dye-sensitized solar cell

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