CNT/PEDOT core/shell nanostructures as a counter electrode for dye-sensitized solar cells

Shin, Hamin; Jeon, Sang Soo; Im, Seung Soon

doi:10.1016/j.synthmet.2011.04.024

Cited by 140 publications

(43 citation statements)

References 24 publications

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“…Graphene/PEDOT-PSS (poly (3,4-ethlenedioxythiophene):poly(styrenesulfonate)) films were fabricated by spinning coating from aqueous mixtures, giving enhancement in the short-circuit photocurrent and fill factor compared to cells with PEDOT-PSS counter electrodes [24]. Similar findings were reported by Shin et al [25], who prepared carbon nanotube/PEDOT core-shell nanostructures using a chemical polymerization method. However, to the best of our knowledge, there has been no previous report of combining titanium carbide, TiC, nanoparticles and PEDOT for use as composite counter electrodes in DSC applications.…”

Section: Introductionsupporting

confidence: 59%

Conducting polymer and titanium carbide-based nanocomposites as efficient counter electrodes for dye-sensitized solar cells

Duffy

Pringle

et al. 2013

Electrochimica Acta

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Section: Introductionsupporting

confidence: 59%

Conducting polymer and titanium carbide-based nanocomposites as efficient counter electrodes for dye-sensitized solar cells

Duffy

Pringle

et al. 2013

Electrochimica Acta

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“…The vibration bands 1188 and 1023 cm −1 are due to the C-O-C bond stretching in the ethylenedioxy group, respectively [14]. The absorption bands at 974, 823, and 673 cm −1 are assigned to the vibrational bands of the C-S bond in the thiophene ring [15]. The vibrations band at 1631 and 3428 cm −1 are attributed to the C=C stretching vibration band of the phenyl side group and O-H stretching vibrations, respectively.…”

Section: Ftir Analysismentioning

confidence: 99%

Charge carrier relaxation studies in poly (3, 4-ethylenedioxythiophene) nanofibers

Chutia

Kumar

2015

J Polym Res

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The electrical conductivity and carrier relaxation in poly (3, 4-ethylenedioxythiophene) (PEDOT) nanofibers have been studied over a wide range of frequency and temperature by means of impedance spectroscopy. High resolution transmission electron micrographs confirm the formation of nanofibers with average diameter of 14 nm. The linear increase of imaginary permittivity with decreasing frequency in the loglog plot of ε″ versus ω is attributed to the higher contribution of dc conductivity than that of the electrode polarization. The presence of single semicircle in the complex impedance ColeCole plot indicates the presence of single charge carrier relaxation mechanism. The perfect matching of the relaxation peak in Z″ and M″ vs. frequency at different temperature confirms the presence of Debye type relaxation. From the temperature dependent behavior of frequency exponent study it is confirmed that the charge transport takes place through correlated barrier hopping mechanism. Decrease of barrier height and increase of density of states with increasing dopant concentration can be corroborated with the conductivity enhancement.

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“…PEDOT:PSS (PEDOT) conducting polymer is a good choice because it has high conductivity and exhibits electrocatalytic activity toward converting tri-iodide I − 3 into iodide (I − ) [21]. Consequently, DSSCs with CEs made of PEDOT composited with various types of carbon catalysts often show a high solar conversion efficiency [22][23][24][25][26][27]. Notably, human hair-derived carbon has rarely been tested as a DSSC CE.…”

Section: Introductionmentioning

confidence: 99%

A Dye-Sensitized Solar Cell Using a Composite of PEDOT:PSS and Carbon Derived from Human Hair for a Counter Electrode

Moolsarn

Tangtrakarn

Pimsawat

et al. 2017

International Journal of Photoenergy

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Carbon derived from hair is interesting because it has good electrocatalytic activity due to the existence of innate heteroatom dopants especially nitrogen and sulfur. In this study, a carbon catalyst containing high nitrogen contents (9.47 at.%) was fabricated without using any harsh chemicals. Moreover, the carbonization temperature was only 700°C. Carbonized hair/ PEDOT:PSS composites (C x P) with varied carbon contents from x = 0.2 to 0.8 g were tested as a counter electrode (CE) for a dye-sensitized solar cell (DSSC). This type of DSSC CE has scarcely been investigated. A DSSC with a C 0.6 P CE provides the best efficiency (6.54 ± 0.11%) among all composite CEs because it has a high fill factor (FF) and a high short-circuit current density (J sc ). The efficiency of DSSC with C 0.6 P CE is lower than Pt's (7.29 ± 0.01%) since the Pt-based DSSC has higher FF and J sc values. However, C 0.6 P is still promising as a DSSC CE since it is more cost-effective than Pt.

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CNT/PEDOT core/shell nanostructures as a counter electrode for dye-sensitized solar cells

Cited by 140 publications

References 24 publications

Conducting polymer and titanium carbide-based nanocomposites as efficient counter electrodes for dye-sensitized solar cells

Conducting polymer and titanium carbide-based nanocomposites as efficient counter electrodes for dye-sensitized solar cells

Charge carrier relaxation studies in poly (3, 4-ethylenedioxythiophene) nanofibers

A Dye-Sensitized Solar Cell Using a Composite of PEDOT:PSS and Carbon Derived from Human Hair for a Counter Electrode

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