Poly(3,4-Ethylenedioxythiophene) Inverse Opal Electrode Fabricated from Poly(3,4-Ethylenedioxythiophene):Poly(Styrene Sulfonate)-Filled Polystyrene Template for Dye-Sensitized Solar Cells

Park, Sun Ha; Kim, Ok-Hee; Kang, Jin Soo; Lee, Kyung Jae; Choi, Jung‐Woo; Cho, Yong‐Hun; Sung, Yun Mo

doi:10.1016/j.electacta.2014.06.025

Cited by 19 publications

(8 citation statements)

References 38 publications

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“…The electrocatalytic activity increase observed for the P-150 CE is due to the enlarged surface area that results from the porous morphology shown in Fig. 2a and the improved conductivity of the polymer film 48 . As presented in Fig.…”

Section: Resultsmentioning

confidence: 95%

“…While P-150 well adhered to the surface of FTO, the bare PEDOT tend to easily peeling off from the surface due to its low adherence ability induced by highly polar growth medium. A decrease in R s can increase the FF of a DSSC, yielding photovoltaic performance improvements and leading to the collection of electrons flowing from the external circuit 48 . Furthermore, the R ct values, which reflect the electrocatalytic activity of the CEs, were 13.61 Ω for bare PEDOT CE and 7.08 Ω for P-150 CE.…”

Section: Resultsmentioning

confidence: 99%

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Hydrogen sulphate-based ionic liquid-assisted electro-polymerization of PEDOT catalyst material for high-efficiency photoelectrochemical solar cells

Çarbaş

Gülen

Tolu

et al. 2017

Sci Rep

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This work reports the facile, one-step electro-polymerization synthesis of poly (3,4-ethylenedioxythiophene) (PEDOT) using a 1-ethyl-3-methylimidazolium hydrogen sulphate (EMIMHSO4) ionic liquid (IL) and, for the first time its utilization as a counter electrode (CE) in dye-sensitized solar cells (DSSCs). Using the IL doped PEDOT as CE, we effectively improve the solar cell efficiency to as high as 8.52%, the highest efficiency reported in 150 mC/cm2 charge capacity, an improvement of ~52% over the control device using the bare PEDOT CE (5.63%). Besides exhibiting good electrocatalytic stability, the highest efficiency reported for the PEDOT CE-based DSSCs using hydrogen sulphate [HSO4]− anion based ILs is also higher than platinum-(Pt)-based reference cells (7.87%). This outstanding performance is attributed to the enhanced charge mobility, reduced contact resistance, improved catalytic stability, smoother surface and well-adhesion. Our experimental analyses reveal that the [HSO4]− anion group of the IL bonds to the PEDOT, leading to higher electron mobility to balance the charge transport at the cathode, a better adhesion for high quality growth PEDOT CE on the substrates and superior catalytic stability. Consequently, the EMIMHSO4-doped PEDOT can successfully act as an excellent alternative green catalyst material, replacing expensive Pt catalysts, to improve performance of DSSCs.

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Section: Resultsmentioning

confidence: 95%

Section: Resultsmentioning

confidence: 99%

Hydrogen sulphate-based ionic liquid-assisted electro-polymerization of PEDOT catalyst material for high-efficiency photoelectrochemical solar cells

Çarbaş

Gülen

Tolu

et al. 2017

Sci Rep

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“…Preparation of PEDOT electrodes was performed by using a modified method of the previously reported procedures. , Monomeric 3,4-ethylenedioxythiphene (EDOT) was electropolymerized onto fluorine-doped tin oxide (FTO) glass substrates in aqueous solution containing 50 mM of sodium dodecyl sulfate, 7 mM of EDOT, and 0.1 M of lithium perchlorate (LiClO 4 ) by potential cycles within −0.3 and 1.0 V versus Ag/AgCl at a scan rate of 50 mV/s. The electrodes with three different thicknesses were prepared by altering the number of the potential cycles, and the electrodes were denoted as PEDOT_1, PEDOT_2, and PEDOT_3 according to the cycle numbers.…”

Section: Resultsmentioning

confidence: 99%

Highly Efficient Bifacial Dye-Sensitized Solar Cells Employing Polymeric Counter Electrodes

Kang

Kim

et al. 2018

ACS Appl. Mater. Interfaces

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Dye-sensitized solar cells (DSCs) are promising solar energy conversion devices with aesthetically favorable properties such as being colorful and having transparent features. They are also well-known for high and reliable performance even under ambient lighting, and these advantages distinguish DSCs for applications in window-type building-integrated photovoltaics (BIPVs) that utilize photons from both lamplight and sunlight. Therefore, investigations on bifacial DSCs have been done intensively, but further enhancement in performance under back-illumination is essential for practical window-BIPV applications. In this research, highly efficient bifacial DSCs were prepared by a combination of electropolymerized poly(3,4-ethylenedioxythiphene) (PEDOT) counter electrodes (CEs) and cobalt bipyridine redox ([Co(bpy)]) electrolyte, both of which manifested superior transparency when compared with conventional Pt and iodide counterparts, respectively. Keen electrochemical analyses of PEDOT films verified that superior electrical properties were achievable when the thickness of the film was reduced, while their high electrocatalytic activities were unchanged. The combination of the PEDOT thin film and [Co(bpy)] electrolyte led to an unprecedented power conversion efficiency among bifacial DSCs under back-illumination, which was also over 85% of that obtained under front-illumination. Furthermore, the advantage of the electropolymerization process, which does not require an elevation of temperature, was demonstrated by flexible bifacial DSC applications.

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“…Park et al realized a well-ordered inverse-opal PEDOT electrode with a PEDOT:PSS-filled self-assembled PS opal template and used as a CE for DSSCs that had demonstrated improved charge transfer and diffusion of the iodide redox electrolyte in the inverse-opal electrode due to its porous morphology . Ahmed et al had reported that Si 3 N 4 /MoS 2 –PEDOT:PSS CEs exhibited excellent catalytic activity and achieved a η of 7.16% . In another work, the same group assembled a DSSC based on the ZnO-NC-PEDOT:PSS CE, and it exhibited a high η of 9.12% .…”

Section: Introductionmentioning

confidence: 99%

Nanoporous Reduced Graphene Oxide and Polymer Composites as Efficient Counter Electrodes in Dye-Sensitized Solar Cells

Sudhakar

Singh

Chini

2020

ACS Appl. Electron. Mater.

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The introduction of an efficient and precious platinum (Pt) free counter electrode (CE) for dye-sensitized solar cells (DSSCs) is an important aspect to address. In this report, we have employed nanoporous reduced graphene oxide (PG) containing PEDOT:PSS–PG composite on FTO substrate as CEs, which have shown excellent diffusion of I3 –, remarkable photocatalytic activity, and better device performance along with desired stability. The investigated cathode material has been prepared by mixing PGs and highly conducting PEDOT:PSS. Experimental measurements and analyses such as electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and so on indicate that PEDOT:PSS–PG is a promising cathode material for a Pt-free CE in DSSCs. EIS indicates that the PEDOT:PSS–PGs have lower interfacial charge-transfer resistance because of their high electrical conductivity and superior electrocatalytic activity. The achieved photoconversion efficiency (η) of a DSSC employing the Pt-free PEDOT:PSS–PG/FTO CE is 9.57%, which is found to be comparable to that of Pt/FTO CE based DSSC (9.64%) under a simulated solar light illumination of 100 mW/cm2.

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Poly(3,4-Ethylenedioxythiophene) Inverse Opal Electrode Fabricated from Poly(3,4-Ethylenedioxythiophene):Poly(Styrene Sulfonate)-Filled Polystyrene Template for Dye-Sensitized Solar Cells

Cited by 19 publications

References 38 publications

Hydrogen sulphate-based ionic liquid-assisted electro-polymerization of PEDOT catalyst material for high-efficiency photoelectrochemical solar cells

Hydrogen sulphate-based ionic liquid-assisted electro-polymerization of PEDOT catalyst material for high-efficiency photoelectrochemical solar cells

Highly Efficient Bifacial Dye-Sensitized Solar Cells Employing Polymeric Counter Electrodes

Nanoporous Reduced Graphene Oxide and Polymer Composites as Efficient Counter Electrodes in Dye-Sensitized Solar Cells

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