Naphthalene imides as novel p-type sensitizers for NiO-based p-type dye-sensitized solar cells

Sahiner, Fırat; Ali, Abdulrahman K.; Denizalti, Serpil; Kandemir, Zafer; Erten-Ela, Şule

doi:10.1039/d0nj03266b

Cited by 7 publications

(10 citation statements)

References 47 publications

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“…Nevertheless, the poor performance of p‐type DSSCs (p‐DSSCs) limits the development of high‐efficiency tandem solar cells, which remain hampered by several hurdles for their large‐scale commercial applications [9,10] . Amongst other factors, the rapid charge recombination between holes of the photocathode NiO surface and the reduced dye or electrolyte significantly limits the power conversion efficiency (PCE) of p‐DSSCs [11–13] . Though the precise reason behind this rapid recombination is still ambiguous, it has been demonstrated in the literature that dyes can be engineered to promote the lifetime of the subsequent charge separation, thereby enhancing the current density and efficiency [14–17] .…”

Section: Introductionmentioning

confidence: 99%

“…[9,10] Amongst other factors, the rapid charge recombination between holes of the photo-cathode NiO surface and the reduced dye or electrolyte significantly limits the power conversion efficiency (PCE) of p-DSSCs. [11][12][13] Though the precise reason behind this rapid recombination is still ambiguous, it has been demonstrated in the literature that dyes can be engineered to promote the lifetime of the subsequent charge separation, thereby enhancing the current density and efficiency. [14][15][16][17] Thus, there is a growing demand for the development of new sensitizers for p-DSSCs, one ultimate goal being their assembly into tandem solar cells.…”

Section: Introductionmentioning

confidence: 99%

“…The schematic representation of molecular design strategy and chemical structures of new p-type dyes PO 1-6 along with the benchmark reference dye P1 are shown in Figure 1. All the target dyes and their corresponding intermediates were fully characterized by 1 H and 13 C nuclear magnetic resonance (NMR) spectroscopy, Fouriertransform infrared (FTIR) spectroscopy, mass spectrometry (MS), and elemental analysis. Their photophysical as well as electrochemical properties were comprehensively examined by means of UV/Vis absorption spectroscopy, photoluminescence (PL) spectroscopy, and cyclic voltammetric (CV) studies.…”

Section: Introductionmentioning

confidence: 99%

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Push‐Pull Phenoxazine‐Based Sensitizers for p‐Type DSSCs: Effect of Acceptor Units on Photovoltaic Performance

et al. 2022

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Finding new efficient p-type sensitizers for NiO photocathodes is a great challenge for the development of promising low-cost tandem dye-sensitized solar cells (DSSCs). Now, the focus of researchers investigating these cells has been to create highperformance p-type systems. With this intention, herein, the design and synthesis of six new phenoxazine-based donoracceptor (D-A)-configured organic dyes PO 1-6 was reported, comprising different acceptor moieties specially designed for the sensitization of mesoporous p-type semiconductor NiO for the construction of p-type DSSCs (p-DSSCs). This work includes structural, photophysical, thermal, electrochemical, theoretical, and photoelectrochemical studies of these dyes, including evaluation of their structure-property relationships. The optical studies revealed that PO 1-6 displayed adequate absorption and emission features in the range of 480-550 and 560-650 nm, respectively, with a bandgap in the order of 2.05-2.40 eV, and their thermodynamic parameters favored an efficient interfacial charge transfer involving NiO. Among the six new dyes, the device based on sensitizer PO 2 carrying electron-withdrawing 1,3-diethyl-2-thiobarbituric acid achieved the highest power conversion efficiency of 0.031 % (short-circuit current density = 0.89 mA cm À 2 , open-circuit voltage = 101 mV, and fill factor = 35 %). Conclusively, the study furnishes an understanding of the intricacies involved in the structural modification of phenoxazine-based sensitizers to further ameliorate the performance of the p-type DSSCs.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Push‐Pull Phenoxazine‐Based Sensitizers for p‐Type DSSCs: Effect of Acceptor Units on Photovoltaic Performance

et al. 2022

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“…In a NiO-based p-type dye-sensitized solar cells, these dyes have a high efficiency. Their exterior quantum efficiency measurements also revealed a reasonable efficiency in the visible range [ 43 ]. In another work, π-extended dibenzo-BODIPY sensitizer with triphenylamine and nitrothiophene synthesized, which showed an intense band of absorption at 730 nm.…”

Section: P-type Semiconductorsmentioning

confidence: 99%

A Review on Gel Polymer Electrolytes for Dye-Sensitized Solar Cells

et al. 2022

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Significant growth has been observed in the research domain of dye-sensitized solar cells (DSSCs) due to the simplicity in its manufacturing, low cost, and high-energy conversion efficiency. The electrolytes in DSSCs play an important role in determining the photovoltaic performance of the DSSCs, e.g., volatile liquid electrolytes suffer from poor thermal stability. Although low volatility liquid electrolytes and solid polymer electrolytes circumvent the stability issues, gel polymer electrolytes with high ionic conductivity and enduring stability are stimulating substitutes for liquid electrolytes in DSSC. In this review paper, the advantages of gel polymer electrolytes (GPEs) are discussed along with other types of electrolytes, e.g., solid polymer electrolytes and p-type semiconductor-based electrolytes. The benefits of incorporating ionic liquids into GPEs are highlighted in conjunction with the factors that affect the ionic conductivity of GPEs. The strategies on the improvement of the properties of DSSCs based on GPE are also presented.

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“…The injected holes diffuse to the back transparent conducting electrode (TCO), which then passes via the external circuit to reach the counter electrode [12][13][14]. In this perspective, the nickel oxide nonmaterial is the predominant p-SC material used, but much higher photo conversion efficiencies and it is applicable in several applications are needed [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Investigation on Dye Regeneration Kinetics at P‐Type Sensitized Nanoparticle Nickel Oxide Film by Scanning Electrochemical Microscopy

Anshebo

Gebreyohanes

2022

Journal of Nanomaterials

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The efficiency of a NiO-sensitized solar cell is determined by the kinetics of hole injection and dye regeneration reactions at the NiO/dye/electrolyte interface. In this research, the photochemical regeneration kinetics of dye adsorbed on the NiO film was investigated by scanning electrochemical microscopy (SECM). Besides, organic C343 and P1 sensitizers in combination with iodide-based, cobalt-based, and thiolate-based electrolytes were selected to understand the effect of sensitizers and redox shuttles on the dye regeneration process. As a result, a fast regeneration kinetic rate constant was conformed in the thiolate-based sample compared with cobalt-based and iodide-based, demonstrating that the organic redox shuttle was an efficient mediator to optimize the performance of p-type DSSC. Furthermore, the regeneration rate constants ( k eff ), reduction rate constants ( k red ), and absorption cross section ( Ф hv ) were investigated for organic dyes and electrolytes. That is, an effective dye regeneration rate constant k red of 6.95 × 10 5 mol-1cm3s-1 for NiO/P1 and k red of 3.75 × 10 5 mol-1cm3s-1 for NiO/C343 was found at various wavelengths. Therefore, the experimental results demonstrate that regeneration kinetics are dependent on the type of electrolyte and dye used. Moreover, the results suggest that scanning electrochemical microscopy is a powerful method for screening efficient dyes and electrolytes for charge transfer reactions in P-type dye-sensitized solar cells.

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Naphthalene imides as novel p-type sensitizers for NiO-based p-type dye-sensitized solar cells

Abstract: We report two efficient materials for p-type dye-sensitized solar cells, namely S64 and S85. Novel p-type photosensitizers for NiO-based dye-sensitized solar cells are presented in this study. Two compounds comprising...

Cited by 7 publications

References 47 publications

Push‐Pull Phenoxazine‐Based Sensitizers for p‐Type DSSCs: Effect of Acceptor Units on Photovoltaic Performance

Push‐Pull Phenoxazine‐Based Sensitizers for p‐Type DSSCs: Effect of Acceptor Units on Photovoltaic Performance

A Review on Gel Polymer Electrolytes for Dye-Sensitized Solar Cells

Investigation on Dye Regeneration Kinetics at P‐Type Sensitized Nanoparticle Nickel Oxide Film by Scanning Electrochemical Microscopy

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