A high efficiency dye-sensitized solar cell with a UV-cured polymer gel electrolyte and a nano-gel electrolyte double layer

Han, Dae Man; Ko, Kwan-Woo; Han, Chi‐Hwan; Kim, Youn Sang

doi:10.1039/c3ta11919j

Cited by 13 publications

(8 citation statements)

References 25 publications

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“…The integral J SC values for CuS, NiS, and PbS were 20.42, 18.83, and 18.64, respectively, and followed the trend extracted from J–V curves. The estimated J SC values are lower than the measured values from J–V curves due to the lower light intensities used in the IPCE measurement, the effect of high chopping frequency on the IPCE spectrum, and the absence of bias light . As regards the NiS and PbS based QDSSCs, the responses are comparable with a slightly higher value for NiS CEs that is also consistent with the variation in their PCEs.…”

Section: Resultssupporting

confidence: 57%

In Situ Microwave‐Assisted Fabrication of Hierarchically Arranged Metal Sulfide Counter Electrodes to Boost Stability and Efficiency of Quantum Dot‐Sensitized Solar Cells

Tsai

Dehvari

et al. 2019

Adv Materials Inter

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This study describes preparation of metal sulfide counter electrodes (CEs) through one‐pot microwave‐assisted route to improve power conversion efficiency (PCE) of quantum dot‐sensitized solar cells at a lower cost. The CuS nanorods, Ni0.96S nanoparticles, and PbS nanocubes are synthesized and deposited in situ on fluorine‐doped tin oxide substrate to serve as CEs without further post‐treatment. Effects of several reaction parameters including sulfur precursor (Na2S, C2H5NS, CH4N2S), Cu concentration, reaction time, and choice of cation (Cu, Ni, Pb) on the CEs morphology, electrochemical characteristics, and PCE are studied. Furthermore, nanostructure formation and thin film growth are studied and correlated with PCE, from which morphology‐ and composition‐performance relationships can be inferred. Hierarchically assembled nanorod CuS CEs exhibit higher electrochemical stability in the S2–/Sn2– redox reaction. Together with the efficient charge transfer and higher diffusion coefficient of polysulfide redox at the electrode/electrolyte interface, deduced from electrochemical impedance spectroscopy and Tafel analyses, a PCE of 8.32% is achieved for the CuS CE. The enhanced photovoltaic performance is ascribed to the 1D CuS nanorods forming a diffusive structure which decreases charge transfer impedance and facilitates regeneration of polysulfide redox leading to a higher short‐circuit current density and fill factor.

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Section: Resultssupporting

confidence: 57%

In Situ Microwave‐Assisted Fabrication of Hierarchically Arranged Metal Sulfide Counter Electrodes to Boost Stability and Efficiency of Quantum Dot‐Sensitized Solar Cells

Tsai

Dehvari

et al. 2019

Adv Materials Inter

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“…Nano-gel type electrolytes were prepared by the addition of 7 wt% fumed silica nanoparticles in the liquid-type electrolyte as previously reported. 18 Fabrication of the DSSCs For the fabrication of the DSSCs, TiO 2 photo-anode lms were prepared by the screen printing method with an aperture area of 0.2 cm 2 and then sintered at 550 C for 30 minutes. Dye adsorption was carried out by dipping the TiO 2 photo-anode lms into a 4 Â 10 À4 M t-butanol-acetonitrile (Merck, 1 : 1) solution of the standard ruthenium dye (N719, Solaronix) for 48 hours at 25 C. In the case of the double layer gel-type electrolyte, rstly the UV-cured polymer gel-type electrolyte was coated on the TiO 2 photo-anode lms and then the nano-gel type electrolyte was coated later.…”

Section: Synthesis Of Electrolytesmentioning

confidence: 99%

“…17 There was an effort to enhance the performance of DSSCs using UV-cured polymer gel electrolytes at room temperature by the introduction of an additional nano-gel type electrolyte between the electrolyte and the counter electrode as a high charge transport layer. 18 Otherwise, there has been less effort to tailor the morphology of the TiO 2 photo-anode than the efforts on gel-type electrolyte DSSCs. Normally, additional light scattering layers are used on dense TiO 2 nanoparticle photo-anode lms to get a higher light harvesting efficiency.…”

Section: Introductionmentioning

confidence: 99%

Facile formation of a micro-crater structure for light scattering in quasi-solid state dye-sensitized solar cells

Han

et al. 2014

RSC Adv.

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“…The UVinduced polymer electrolyte can trap the liquid electrolyte into its crosslinked polymer network and remain the dimensional stability at elevated temperature. Y. S. Kim et al used a UV-cured polymer gel electrolyte formed by aliphatic urethane acrylate and photoinitiator for DSSC, 24 retarding the back electron transfer from the TiO to the electrolyte. S. stability at a 1800 h aging test.…”

Section: Introductionmentioning

confidence: 99%

Photoinduced Polyacrylate Based Polymer Electrolyte for Quasi-solid State Dye Sensitized Solar Cell Application

Xu¹,

Kong²,

Xi³

et al. 2019

Eng. Sci.

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A novel polymer electrolyte poly(NAG) prepared from commercially available transparent photocurable nail art glue NAG is successfully developed for quasi-solid state dye sensitized solar cells (QS-DSSCs) application. The functional component in this poly(NAG) is revealed to be acrylate based group from the Fourier transform infrared spectroscopy (FTIR) measurement. Water contact angles tests showthe poly(NAG) films displayed contact angle less than 20° when dripping liquid electrolyte containing iodide/tri-iodide redox couple. Meanwhile, electrochemical properties of poly(NAG) polymer based electrolyte are thoroughly investigated by cyclic voltammetry (CV) and electrochemical impedance-1 spectroscopy (EIS). The poly(NAG) polymer electrolyte presents an a highest ionic conductivity of 0.51 mS•cm at room-temperature. Solar cell based on the poly(NAG) electrolyte reaches power conversion efficiency (PCE) of 1.46%. This work demonstrates that this NAG is a novel, cheap, environmental friendly and efficient precursor for preparing polymer electrolyte for DSSCs application. Its abundance can significantly reduce cell fabrication cost, and this work opens a new way to look for promising resource for the application of DSSCs.

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A high efficiency dye-sensitized solar cell with a UV-cured polymer gel electrolyte and a nano-gel electrolyte double layer

Cited by 13 publications

References 25 publications

In Situ Microwave‐Assisted Fabrication of Hierarchically Arranged Metal Sulfide Counter Electrodes to Boost Stability and Efficiency of Quantum Dot‐Sensitized Solar Cells

In Situ Microwave‐Assisted Fabrication of Hierarchically Arranged Metal Sulfide Counter Electrodes to Boost Stability and Efficiency of Quantum Dot‐Sensitized Solar Cells

Facile formation of a micro-crater structure for light scattering in quasi-solid state dye-sensitized solar cells

Photoinduced Polyacrylate Based Polymer Electrolyte for Quasi-solid State Dye Sensitized Solar Cell Application

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