A nanostructure-based counter electrode for dye-sensitized solar cells by assembly of silver nanoparticles

Dong, Hua; Wu, Zhaoxin; Gao, Yucui; El‐Shafei, Ahmed; Jiao, Bo; Dai, Yang; Hou, Xun

doi:10.1016/j.orgel.2014.03.004

Cited by 21 publications

(11 citation statements)

References 31 publications

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“…Based on the conventional sensitizers, the surface plasmon resonance (SPR) effect was recently employed as an attractive approach to increase light harvesting efficiency. 13,14 Plasmonic metal-nanoparticles, such as Ag nanoparticles, Au nanoparticles, and core-shell nanostructures, could boost the performance of the DSSCs via the SPR effect. [15][16][17][18][19][20][21][22] SPR is a collective oscillation of conduction band electrons in a metal nanoparticle driven by the electromagnetic eld of incident light, which could signicantly increase the light absorption of the dye and the generation of the photon-carriers.…”

Section: Introductionmentioning

confidence: 99%

Ag-encapsulated Au plasmonic nanorods for enhanced dye-sensitized solar cell performance

et al. 2015

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Section: Introductionmentioning

confidence: 99%

Ag-encapsulated Au plasmonic nanorods for enhanced dye-sensitized solar cell performance

et al. 2015

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“…Hence, 14% enhancement in efficiency was obtained when the Ag/Pt CE is used. About 15% efficiency enhancement was observed by Dong et al [53] when Au NP was incorporated into CE. This was attributed to the high surface area at CE and the plasmonic effect.…”

Section: Plasmonicsmentioning

confidence: 85%

Plasmonic Effect in Photoelectrochemical Cells

Arof¹,

Buraidah²

2018

Plasmonics

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Two types of third-generation photovoltaic (PV) cells are sensitized by dyes and quantum dots (QDs), the former being dye-sensitized solar cell abbreviated as DSSC. The second is the quantum dot-sensitized solar cell or QDSSC. There are three main components in DSSC and QDSSC. The photoanode is the component where the light is being absorbed either by molecules of the dye or by the quantum dots (QDs). The sensitizers are attached on the semiconductor (normally TiO 2) surface. The conduction band (CB) of the semiconducting material should be at a level lower than the lowest unoccupied molecular orbital (LUMO) of the dye molecules or CB of QDs for fast electron transfer. Incorporation of plasmonic materials into the photoanode can increase light absorption efficiency by surface plasmon effect and thus improve the efficiency of the DSSCs and QDSSCs. Plasmonic materials that have been employed include gold (Au), silver (Ag) and aluminum (Al) nanoparticles (NPs). Different NPs exhibit different effects on the cell parameters. Covering the NPs with a thin wide bandgap semiconducting film is necessary to protect the plasmonic NP materials from the corrosive nature of the electrolyte.

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“…These judgments are in good agreement, while there are few studies previously reported on the increase of the PCE for devices constructed with adding the metallic NPs into the photoanodes or counter electrodes. 16,18,19 In Table 1, we summarize the photovoltaic parameters with reference and plasmonic devices. After blending Ag nanospheres into a counter electrode, the open-circuit photovoltage (V oc ) increased from 0.746 to 0.763 V, the short-circuit photocurrent density (J sc ) increased from 14.95 to 15.82 mA cm −2 , and the fill factor (FF) increased from 68.06 to 68.10%.…”

Section: ■ Introductionmentioning

confidence: 99%

“…However, plasmonic NPs introduced in DSCs thus created some small problems such as back reaction of charge collection efficiency and recombination of charge carriers due to the direct contact between the dye and electrolyte. As a result, various methods have been adopted in DSCs by preventing the back reaction and recombination. − Nonetheless, numerous exciting results have previously reported the significant improvement of DSCs by embedding the metallic NPs into the photoanodes − and CEs of the devices. However, to the best of our knowledge, there have been no studies reporting the incorporation of Ag nanorods and nanoprisms into the platinum (Pt) CE.…”

Section: Introductionmentioning

confidence: 99%

Plasmonic Effects of Silver Nanoparticles Embedded in the Counter Electrode on the Enhanced Performance of Dye-Sensitized Solar Cells

et al. 2018

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The plasmonic effects of silver (Ag) nanoparticles (NPs) with various morphologies (sphere, rod, and prism) embedded into the platinum (Pt) counter electrodes (CEs) of dye-sensitized solar cells (DSCs) were systematically investigated. It was shown that the power conversion efficiencies (PCEs) of the incorporated devices are notably improved from 7.60%, for the reference device without Ag NPs, to 8.10, 8.68, and 8.55% with Ag nanospheres, nanorods, and nanoprism devices, respectively. Moreover, the photocurrent and fill factor enhancement is attributed to the better optical and electrical properties of the integrated devices. Among all of the NP morphologies studied, Ag nanorods offer the best improvement to the device efficiency, as they have longitudinal localized surface plasmon resonance (L-LSPR) and strong scattering effects correlate within the morphology.

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A nanostructure-based counter electrode for dye-sensitized solar cells by assembly of silver nanoparticles

Cited by 21 publications

References 31 publications

Ag-encapsulated Au plasmonic nanorods for enhanced dye-sensitized solar cell performance

Ag-encapsulated Au plasmonic nanorods for enhanced dye-sensitized solar cell performance

Plasmonic Effect in Photoelectrochemical Cells

Plasmonic Effects of Silver Nanoparticles Embedded in the Counter Electrode on the Enhanced Performance of Dye-Sensitized Solar Cells

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