SPR effect of AgNPs decorated TiO 2 in DSSC using TPMPI in the electrolyte: Approach towards low light trapping

Pal, Arunava; Jana, Atanu; Bhattacharya, Sayantani; Datta, Jayati

doi:10.1016/j.electacta.2017.05.051

Cited by 21 publications

(4 citation statements)

References 48 publications

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“…[ 56 ] The τ 1 and τ 2 are generally used to further evaluate the electron transition efficiency in DSSCs. [ 57 ] One computed τ 1 and τ 2 via these formulas [ 58 ]

\begin{equation}{\tau }_1 = \frac{{1.499}}{{{f}_{{\rm{abs}}}e_1^2}}\end{equation}

\begin{equation}{\tau }_2 = \frac{{2\pi {\varepsilon }_0{m}_{\rm{e}}{h}^2{c}^3}}{{{e}^4{E}^2f}}\end{equation}

where f abs represents the excited‐state oscillator strength and e 1 depicts the excitation energy; e , m e , ɛ 0 , and h represent the elementary charge, electronic quality, vacuum dielectric coefficient, and Planck constant, respectively; E and f represent the emitted energy and oscillator strength, and c is the light speed. The corresponding data are indicated in Table 3 , and the values of τ 2 are in the following order: HJL‐1 (4.392 ns) > HJL‐3 (4.157 ns) > HJL‐2 (3.758 ns); thus, HJL‐1 and HJL‐3 have higher fluorescence efficiency.…”

Section: Resultsmentioning

confidence: 99%

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Photoelectric Performance of Several Dithienoheterocycles Dyes and Nanocomposite of Dyes/Graphene Quantum Dots for DSSCs

Sun

Yang

Liu

et al. 2023

Advcd Theory and Sims

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Three D‐A’‐π‐A type of metal‐free organic sensitizers, which are based on naphtho [2,3‐d] [1‐3] triazole entity as auxiliary acceptor and several dithienoheterocycles (cyclopentadithiophene, dithieno[3,2‐b:2’,3’‐d]silole, dithieno[3,2‐b:2’,3’‐d]pyrrole) as π‐conjugated bridge, are investigated using density functional theory (DFT)/time‐dependent DFT methods. First, the influence of different π‐bridges on the photovoltaic properties in three dyes is analyzed by mainly studying geometry structures, spectral characteristics, electron injection, dye regeneration, and charge difference density to explain highest performance of HJL‐3. Second, molecular design of introducing graphene quantum dots (GQDs) is carried out, and the results find that HJL‐3@GQDs display better photoelectric performance because GQDs have a positive impact on some parameters (such as light‐harvesting efficiency, electron injection amounts, dipole moment, and so on) upon introducing GQDs. This work provides a reasonable explanation for the experiment and a way to regulate performance of dye‐sensitized solar cells.

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“…[ 56 ] The τ 1 and τ 2 are generally used to further evaluate the electron transition efficiency in DSSCs. [ 57 ] One computed τ 1 and τ 2 via these formulas [ 58 ]

\begin{equation}{\tau }_1 = \frac{{1.499}}{{{f}_{{\rm{abs}}}e_1^2}}\end{equation}

\begin{equation}{\tau }_2 = \frac{{2\pi {\varepsilon }_0{m}_{\rm{e}}{h}^2{c}^3}}{{{e}^4{E}^2f}}\end{equation}

Section: Resultsmentioning

confidence: 99%

“…[56] The 𝜏 1 and 𝜏 2 are generally used to further evaluate the electron transition efficiency in DSSCs. [57] One computed 𝜏 1 and 𝜏 2 via these formulas [58] 𝜏 1 = 1.499…”

Section: The Properties Of Absorption and Fluorescencementioning

confidence: 99%

Photoelectric Performance of Several Dithienoheterocycles Dyes and Nanocomposite of Dyes/Graphene Quantum Dots for DSSCs

Sun

Yang

Liu

et al. 2023

Advcd Theory and Sims

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“…Silver (Ag) is an exquisite metal that can be catalytic, nontoxic, and cost-effective and that possesses good thermal and electrical conductivity. In addition, doping Ag is one of the methods for enhancing its chemical and electrical properties and is often used to enhance DSSC performance [26][27][28][29]. In this investigation, a TiO 2 -film-making experiment was conducted in which TiO 2 that was immersed into dye DN-F05 mixed with Ag.…”

Section: Preparation and Manufacture Of Tio2 Pastementioning

confidence: 99%

Influence of Coating a TiO2 Electrode with DN-F05 and DN-F05-Ag on the Photovoltaic Performance of DSSC Solar Cells

et al. 2023

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A DSSC’s performance depends on its working electrode. Since this working electrode functions as an electron carrier, it affects how well DSSC solar cells perform. This study focused on working electrodes that use the dye DN-F05 and the Ag ions in the hybrid dye DN-F05 as a sensitizer. This research was conducted using the spin-coating method. Based on structural, optical, and electrical data, the results obtained were related to each other. It was determined that Ag has a significant influence on DSSC performance, and this discovery was also the main goal of this study. Previous studies have shown that the addition of Ag as a doping agent is an effective strategy for improving chemical and electronic properties. This can be proven through electrical measurements, which have shown an efficiency of 5.33%. However, when a significant amount of Ag is hybridized in the dye DN-F05, it will cause a decrease in DSSC performance due to the accumulation of Ag particles on the semiconductor’s surface, creating a barrier to light absorption and aggregation. This is what led to the selection of a hybrid material (Ag metal), as Ag is unique and offers great potential with respect to boosting solar cells’ performance.

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“…In conclusion, the R 1 and R 2 are the interface impedances that represent the photo-generated electron degree of difficulty to recombine with the holes in the electrolyte. The suppression of electron recombination greatly reduces the electronic loss of DSSC [8,37], and this was the reason for the increase in fill factor, and thus the photovoltaic efficiency can be enhanced [38]. The highest efficiency is observed under an intensity of 30 mW/cm 2 .…”

Section: Performance Of the Dssc Under Different Illuminationsmentioning

confidence: 99%

Study of How Photoelectrodes Modified by TiO2/Ag Nanofibers in Various Structures Enhance the Efficiency of Dye-Sensitized Solar Cells under Low Illumination

et al. 2020

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Dye-sensitized solar cells (DSSCs) are low-cost solar cells belonging to the thin-film photovoltaic cell type. In this study, we studied the photovoltaic performances of DSSCs based on titanium dioxide (TiO2) nanofibers (NFs) containing silver (Ag) nanoparticles (NPs) under low illumination. We used the sol-gel method with the electrospinning technique to prepare the TiO2 NFs containing Ag NPs. Herein, we used two ways to add TiO2/Ag NFs to modify the photoelectrode successfully and enhance the performance of DSSCs. One way was that the TiO2/Ag NFs were mixed with pristine TiO2; the other way was that the TiO2/Ag NFs were seeded beside the TiO2 colloid layer as an additional layer on the photoelectrode of the DSSC. According to this experiment, the photovoltaic conversion efficiency of the DSSC which had TiO2/Ag NF seeded as an additional layer on the photoelectrode (5.13%) was increased by 28% compared to the DSSC without the photoelectrode modification (3.99%). This was due to the suppression of electron recombination and the more effective utilization of the light radiation by adding the TiO2/Ag NFs. Because of the good conductivity of Ag, the electrons were quickly transported and electron recombination was reduced. In addition, the photovoltaic conversion efficiency of the DSSC which had TiO2/Ag NF seeded as an additional layer on the photoelectrode increased from 5.13% to 6.23% during the decrease in illumination from 100 mW/cm2 to 30 mW/cm2; however, its photovoltaic conversion efficiency decreased to 5.31% when the illumination was lowered to 10 mW/cm2.

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SPR effect of AgNPs decorated TiO 2 in DSSC using TPMPI in the electrolyte: Approach towards low light trapping

Cited by 21 publications

References 48 publications

Photoelectric Performance of Several Dithienoheterocycles Dyes and Nanocomposite of Dyes/Graphene Quantum Dots for DSSCs

Photoelectric Performance of Several Dithienoheterocycles Dyes and Nanocomposite of Dyes/Graphene Quantum Dots for DSSCs

Influence of Coating a TiO2 Electrode with DN-F05 and DN-F05-Ag on the Photovoltaic Performance of DSSC Solar Cells

Study of How Photoelectrodes Modified by TiO2/Ag Nanofibers in Various Structures Enhance the Efficiency of Dye-Sensitized Solar Cells under Low Illumination

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