Incorporation of plasmonic Au nanostars into photoanodes for high efficiency dye-sensitized solar cells

Elbohy, Hytham; Kim, Mee Rahn; Dubey, Ashish; Reza, Khan Mamun; Ma, Dongling; Zai, Jiantao; Qian, Xuefeng; Qiao, Qiquan

doi:10.1039/c5ta06425b

Cited by 49 publications

(23 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Very recently, it was found that incorporation of Au nanostars into N719 DSCs improved their PCE by ~20% from 7.1% to 8.4% ( Figure 19A) [103]. Meanwhile, a 30% PCE improvement (from 3.9% to 5.0%) was obtained for DSCs using N749 dye ( Figure 19B).…”

Section: Anisotropic Metal Nanostructuresmentioning

confidence: 94%

Recent advancements in plasmon-enhanced promising third-generation solar cells

Gangadharan

Liu

et al. 2016

Nanophotonics

Self Cite

View full text Add to dashboard Cite

Abstract:The unique optical properties possessed by plasmonic noble metal nanostructures in consequence of localized surface plasmon resonance (LSPR) are useful in diverse applications like photovoltaics, sensing, nonlinear optics, hydrogen generation, and photocatalytic pollutant degradation. The incorporation of plasmonic metal nanostructures into solar cells provides enhancement in light absorption and scattering cross-section (via LSPR), tunability of light absorption profile especially in the visible region of the solar spectrum, and more efficient charge carrier separation, hence maximizing the photovoltaic efficiency. This review discusses about the recent development of different plasmonic metal nanostructures, mainly based on Au or Ag, and their applications in promising third-generation solar cells such as dye-sensitized solar cells, quantum dot-based solar cells, and perovskite solar cells.

show abstract

Section: Anisotropic Metal Nanostructuresmentioning

confidence: 94%

Recent advancements in plasmon-enhanced promising third-generation solar cells

Gangadharan

Liu

et al. 2016

Nanophotonics

Self Cite

View full text Add to dashboard Cite

show abstract

“…Figure1cs hows the UV/Vis absorption spectrum of AuNSsd ispersed in water.T he appearance of the strong resonance band of AuNSs centered at al ong wavelength of > 650 nm is due to the formation of tips, whereas the shoulder at approximately 530-550 nm is associated with the transverse plasmon mode of the cores. [16] Such AuNSs are expectedt oh ave strong local electromagnetic field enhancement aroundt he pods/tips anda lso provide excellent light scattering, [16,17] which will lead to an enhancement in LHE of the devices.T ov erify the presence of the AuNSs in the meso-porousT iO 2 ,t he photoelectrodes were characterizedu sing X-ray photoelectrons pectroscopy (XPS). Figure S1 in the Supporting Information shows the Ti 2p (a) and Au 4f spectra (b).…”

mentioning

confidence: 99%

Plasmonic Gold Nanostars Incorporated into High‐Efficiency Perovskite Solar Cells

et al. 2017

View full text Add to dashboard Cite

Incorporating appropriate plasmonic nanostructures into photovoltaic (PV) systems is of great utility for enhancing photon absorption and thus improving device performance. Herein, the successful integration of plasmonic gold nanostars (AuNSs) into mesoporous TiO2 photoelectrodes for perovskite solar cells (PSCs) is reported. The PSCs fabricated with TiO2‐AuNSs photoelectrodes exhibited a device efficiency of up to 17.72 %, whereas the control cells without AuNSs showed a maximum efficiency of 15.19 %. We attribute the origin of increased device performance to enhanced light absorption and suppressed charge recombination.

show abstract

“…This indicates that the stability of the sheet-like CoS 2 CE was analogous to that of the standard Pt CE, and have the potential to be engaged as low cost replacements for Pt CEs in the construction of highly efficient and stable DSSCs. Figure 6b, show the distribution of device performance for 30 devices are shown as a histogram [20,37,38]. Schematic illustration of the electron transfer process in the DSSCs assembled with phthaloylchitosan-based gel-polymer electrolyte and a CoS2 CE is shown in Figure 7.…”

Section: Photovoltaic Performance Of the Dsscsmentioning

confidence: 99%

“…The stability of DSSCs is highly dependent on the redox electrolyte and they are generally fabricated with liquid electrolytes (e.g., I − /I 3 − redox couple) with a high PCE. However, liquid electrolytes have several disadvantages including difficulty in sealing the device, lower stability due to solvent evaporation, solvent leakage, and electrode corrosion [14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Cost-Effective Dye-Sensitized Solar Cells Using Sheet-Like CoS2 Films and Phthaloylchitosan-Based Gel-Polymer Electrolyte

et al. 2018

View full text Add to dashboard Cite

Platinum-free counter electrodes (CE) were developed for use in efficient and cost-effective energy conversion devices, such as dye-sensitized solar cells (DSSCs). Electrochemical deposition of CoS 2 on fluorine-doped tin oxide (FTO) formed a hierarchical sheet-like structured CoS 2 thin film. This film was engaged as a cost-effective platinum-free and high-efficiency CE for DSSCs. High stability was achieved using a phthaloychitosan-based gel-polymer electrolyte as the redox electrolyte. The electrocatalytic performance of the sheet-like CoS 2 film was analyzed by electrochemical impedance spectroscopy and cyclic voltammetry. The film displayed improved electrocatalytic behavior that can be credited to a low charge-transfer resistance at the CE/electrolyte boundary and improved exchange between triiodide and iodide ions. The fabricated DSSCs with a phthaloychitosan-based gel-polymer electrolyte and sheet-like CoS 2 CE had a power conversion efficiency (PCE, η) of 7.29% with a fill factor (FF) of 0.64, J sc of 17.51 mA/cm 2 , and a V oc of 0.65 V, which was analogous to that of Pt CE (η = 7.82%). The high PCE of the sheet-like CoS 2 CE arises from the enhanced FF and J sc , which can be attributed to the abundant active electrocatalytic sites and enhanced interfacial charge-transfer by the well-organized surface structure.

show abstract

Incorporation of plasmonic Au nanostars into photoanodes for high efficiency dye-sensitized solar cells

Abstract: Incorporation of plasmonic Au nanostars into the TiO2 photoanode significantly improved the performance of dye-sensitized solar cells (DSSCs).

Cited by 49 publications

References 40 publications

Recent advancements in plasmon-enhanced promising third-generation solar cells

Recent advancements in plasmon-enhanced promising third-generation solar cells

Plasmonic Gold Nanostars Incorporated into High‐Efficiency Perovskite Solar Cells

Fabrication of Cost-Effective Dye-Sensitized Solar Cells Using Sheet-Like CoS2 Films and Phthaloylchitosan-Based Gel-Polymer Electrolyte

Contact Info

Product

Resources

About