Photoelectrochemical studies of the junction between poly[3-(4-octylphenyl)thiophene] and a redox polymer electrolyte

Yohannes, Teketel; Inganäs, Olle

doi:10.1016/s0927-0248(97)00213-4

Cited by 106 publications

(36 citation statements)

References 32 publications

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“…From the table, it was found that the J SC from this work is higher than that reported in [1,2,4,5], but smaller than that reported in [3]. This is because the conductivity of the electrolyte used in the PEC in this work is higher than those reported in [1,2,4,5], but smaller than that reported in [3].…”

Section: Resultscontrasting

confidence: 56%

Morphological, optical, structural and photoelectrochemical properties of TiO₂nanoflower prepared via PVP surfactant assisted liquid phase deposition technique

Rahman

Umar

Roza

et al. 2014

Journal of Experimental Nanoscience

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This paper reports the synthesis of TiO 2 nanoflowers as photovoltaic materials of the photoelectrochemical cell (PEC) via the phase liquid deposition technique assisted with a polyvinylpyrrolidone (PVP) surfactant. This work investigates the influence of the surfactant concentration on the morphological, optical, phase structure and PEC properties of the TiO 2 PEC cell. The grain size of the TiO 2 sample decreases with increase in PVP concentration. The smallest grain size of 16 § 2 nm is obtained at 8 mM PVP. The thickness of the sample increases with PVP concentration. The concentration of PVP does not influence the optical absorption and band gap of the sample. The phase structure and crystallinity degree of the sample are not influenced by PVP concentration. The crystallite size is around 20 nm. The short-circuit current density, J sc , of the PEC cell utilising these TiO 2 samples increases with decrease in grain size which is due to the increase in PVP concentration. The best J sc was 0.068 mA cm ¡2 obtained at 8 mM PVP.

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Section: Resultscontrasting

confidence: 56%

Morphological, optical, structural and photoelectrochemical properties of TiO₂nanoflower prepared via PVP surfactant assisted liquid phase deposition technique

Rahman

Umar

Roza

et al. 2014

Journal of Experimental Nanoscience

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“…PEDOT improves the charge transfer between the FTO and the I 3 -/I -redox couple [13,14]. It is chosen as a counter electrode, because of less costly and can easily be prepared electrochemically to a desired transparency [15].…”

Section: Preparation Of Counter Electrodementioning

confidence: 99%

“…In fact, some research has demonstrated a synergistic effect of two sensitizing pigments, meaning the absorption spectra of two pigments combined to increase light absorption and increase the incident photon to current conversion efficiency of the solar cell [25,26]. Chlorophyll plays an important role in plant photosynthesis; the DSSCs using chlorophyll derivatives as sensitizers obtained a relatively high conversion efficiency [15,16]. This is because there are available bonds between the dye and TiO2 molecules through which electrons can transport from the excited dye molecules to the TiO2 film [17].…”

Section: Photoelectrochemical Propertiesmentioning

confidence: 99%

Natural dye as light-harvesting pigments for quasi-solid-state dye-sensitized solar cells

Yazie

Worku

Reda

2016

Mater Renew Sustain Energy

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In this paper, quasi-solid-state dye-sensitized solar cell has been constructed based on natural photosensitizers extracted from the bracts of Bougainvillea spectabilis and the leaves of Euphorbia cotinifolia using acidified (0.1 M HCl) distilled water and ethanol separately. The absorption spectra of the extracts were performed in the spectral range from 395 to 750 nm. The cells were assembled using commercial TiO 2 powder film and PEDOT coated FTO glasses as working and counter electrodes, respectively, and also the quasi-solid electrolyte sandwiched in between. The Photovoltaic parameters such as short circuit current density (J sc ), open circuit voltage (V oc ), fill factor (FF), and overall conversion efficiency (g) for the as-prepared DSSC were determined under 100 mW/ cm 2 illuminations. The highest open circuit voltage (V oc = 0.549 V) and short circuit current density (J sc = 0.592 mA/cm 2 ) were obtained from the DSSCs assembled by natural dye extracted with the acidified ethanol of Bougainvillea spectabilis bracts and the leaves of Euphorbia cotinifolia, respectively. The highest power conversation efficiency (g) of the as-prepared DSSC assembled with natural dye extracted from Bougainvillea spectabilis bracts using acidified ethanol as extracting solvent was 0.175 %. The use of Bougainvillea spectabilis and Euphorbia cotinifolia pigments as natural sensitizers along with the use of quasi-solid electrolyte and PEDOT coated FTO counter electrodes could be a possible alternative for the production of low-cost and environment friendly DSSCs.

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“…PEDT is used as anti-static coating for plastics, especially photographic films. Recently, its applications have been extended to solid electrolyte development for capacitors, through-hole plating of printed circuit boards 19 , biosensors 20 and photoelectrochemical cells 21,22 .…”

Section: Introductionmentioning

confidence: 99%

Flexible electrochromic windows: a comparison using liquid and solid electrolytes

Girotto

Paoli

1999

J. Braz. Chem. Soc.

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Neste trabalho foram montados e caracterizados dois dispositivos eletrocrômicos (ou janelas eletrocrômicas) utilizando como materiais opticamente ativos polímeros instrinsecamente condutores. Os materiais usados na montagem foram os mesmos, exceto pelo eletrólito usado. No primeiro foi usado como eletrólito uma solução de carbonato de propileno e no segundo o elastômero poli(epicloridrina-co-oxido de etileno), ambos contendo LiClO4. A condutividade elétrica do eletrólito líquido é aproximadamente duas ordens de grandeza maior (10 -3 S cm -1) do que a do eletrólito sólido e foram obtidos excelentes resultados do ponto de vista eletrocrômico em ambos os casos. A eficiência eletrocrômica em 640 nm foi calculada em 700 C cm -2 para o dispositivo com eletrólito liquido e 360 C cm -2 para o dispositivo montado com eletrólito sólido. O uso de dispositivos eletrocrômicos de estado sólido tem chamado bastante atenção e suas vantagens são discutidas.In the present work, two electrochromic devices (or electrochromic windows) based on intrinsically conducting polymers were assembled and characterized. For both devices, the materials used on the assembling were the same except for the electrolyte layer. In the first, we used as electrolyte a propylene carbonate solution and in the second the elastomer poly(epichlorohydrin-co-ethylene oxide), both containing LiClO4. The conductivity of the liquid electrolyte (10 -3 S cm -1) is approximately two orders of magnitude higher than for the solid electrolyte and we obtained very good electrochromic properties in both cases. The calculated electrochromic efficiency at 640 nm was 700 C cm -2 for the liquid electrolyte device and 360 C cm -2 for the solid state device. Solid state electrochromic windows have been investigated and some of its advantages over windows with liquid electrolytes are discussed.

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Photoelectrochemical studies of the junction between poly[3-(4-octylphenyl)thiophene] and a redox polymer electrolyte

Cited by 106 publications

References 32 publications

Morphological, optical, structural and photoelectrochemical properties of TiO₂nanoflower prepared via PVP surfactant assisted liquid phase deposition technique

Morphological, optical, structural and photoelectrochemical properties of TiO₂nanoflower prepared via PVP surfactant assisted liquid phase deposition technique

Natural dye as light-harvesting pigments for quasi-solid-state dye-sensitized solar cells

Flexible electrochromic windows: a comparison using liquid and solid electrolytes

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Photoelectrochemical studies of the junction between poly[3-(4-octylphenyl)thiophene] and a redox polymer electrolyte

Cited by 106 publications

References 32 publications

Morphological, optical, structural and photoelectrochemical properties of TiO2nanoflower prepared via PVP surfactant assisted liquid phase deposition technique

Morphological, optical, structural and photoelectrochemical properties of TiO2nanoflower prepared via PVP surfactant assisted liquid phase deposition technique

Natural dye as light-harvesting pigments for quasi-solid-state dye-sensitized solar cells

Flexible electrochromic windows: a comparison using liquid and solid electrolytes

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Morphological, optical, structural and photoelectrochemical properties of TiO₂nanoflower prepared via PVP surfactant assisted liquid phase deposition technique

Morphological, optical, structural and photoelectrochemical properties of TiO₂nanoflower prepared via PVP surfactant assisted liquid phase deposition technique