New Pyridinium Ylide Dyes for Dye Sensitized Solar Cell Applications

Li, Ting Yu; Su, Chun‐Hsi; Akula, Suri Babu; Sun, Wei; Chien, Hung-Ming; Li, Wen Ren

doi:10.1021/acs.orglett.6b01539

Cited by 36 publications

(12 citation statements)

References 24 publications

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“…The electron rich triphenylamine is oen used to synthesize hole-transporting materials for solar cell. [32][33][34] However, it is also an ideal building block in the construction of molecules with AIEE property due to the presence of rotatable C-N bonds. [35][36][37][38][39] Hence, the photophysical properties of compounds 2a-2c in the aggregation state was further investigated by measuring their spectra in the water/THF mixture.…”

Section: Resultsmentioning

confidence: 99%

N-Substitution of acridone with electron-donating groups: crystal packing, intramolecular charge transfer and tuneable aggregation induced emission

2020

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Section: Resultsmentioning

confidence: 99%

N-Substitution of acridone with electron-donating groups: crystal packing, intramolecular charge transfer and tuneable aggregation induced emission

2020

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“…The synthetic routes of TPA‐ o F, TPA‐ m F, TPA‐ p F, TPA‐ o Cl, TPA‐ m Cl, TPA‐ p Cl, TPA‐ o Br, TPA‐ m Br, TPA‐ p Br, and TPA‐ph are illustrated in Scheme S1 (Supporting Information). The key intermediate compounds of 2OMeTPA‐Br and 2OMeTPA‐Bpin were synthesized according to literatures . The target compounds were synthesized through the typical Suzuki coupling reaction, and purified by silica gel chromatography followed by recrystallization.…”

Section: Resultsmentioning

confidence: 99%

Halogen‐Containing TPA‐Based Luminogens: Different Molecular Packing and Different Mechanoluminescence

Wang

Yao

et al. 2019

Advanced Optical Materials

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Organic mechanoluminescence (ML) materials have attracted much attention for their various application prospects in luminescent devices. However, the pace of their development has been greatly limited by the unclear inherent mechanism. Herein, halogen atoms are systematically introduced into ML for the first time to deeply explore the light‐emitting process and internal mechanism. Thus, a series of triphenylamine (TPA) derivatives is obtained with diverse ML properties, including TPA‐oF, TPA‐mF, TPA‐pF, TPA‐oCl, TPA‐mCl, TPA‐pCl, TPA‐oBr, TPA‐mBr, TPA‐pBr, and TPA‐ph. Among them, with the introduced chlorine and bromine atoms in the para‐position of the phenyl ring in TPA‐ph, the resultant TPA‐pCl and TPA‐pBr demonstrate bright ML; whereas the introduced fluorine atom in TPA‐pF drastically reduces the ML performance. Careful analysis of their optical properties and crystal structures coupled with theoretical calculations confirms that different halogen atoms in the TPA derivatives can really lead to diverse intermolecular interactions, and the strong intermolecular interactions are actually beneficial for the ML effect by reducing energy loss through nonradiative relaxation channels under a stimulus of mechanical force; however, unsatisfying ML performance is observed in the crystal with an overtight molecular packing, on account of the unbreakable crystals with high rigidity.

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“…The theoretically predicted maximum efficiency for DSSC is 32% which is estimated and limited by the Shockley-Queisser limit based upon the principle of detailed balance [13]. In the architecture of dye-sensitized solar cells, usually, TiO 2 (titanium dioxide) is preferred because of its photoactive, low cost, and abundant availability [14]. The most used dye for DSSC is N719 (Cis-Di-(thiocyanato) bis (2,2′-bipyridyl)-4,4′-dicarboxylate) ruthenium (II)) owing to its good light absorber and charge transfer properties vis-à-vis to any other dyes [15].…”

Section: Introductionmentioning

confidence: 99%

Outdoor Performance and Stability Assessment of Dye-Sensitized Solar Cells (DSSCs)

Agarwal¹,

Vyas²,

Chundawat³

et al. 2022

Solar Radiation - Measurement, Modeling and Forecasting Techniques for Photovoltaic Solar Energy Applications

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In this era the requirement for energy is enhancing, therefore, many energy resources are developed among them the emerging third-generation dye-sensitized solar cell is one of the environment-friendly solar cell-based technology. Generally, dye-sensitized solar cells consist of a nanomaterial-based photoanode, dye molecules as an absorber, electrolyte, and counter electrode. In the case of indoor application, this solar cell works easily so this is the characteristics of a dye-sensitized solar cell. Moreover, the outdoor performance of DSSC degrades on exposure to sunlight. Exposure to sunlight increases the temperature of the internal component of DSSC and consequently degradation in device performance. Long-term stability is obtained by the choice of such material where degradation takes place slowly and plastic covers are also coated over DSSC to prevent degradation. The solar response of DSSC towards dye was also mentioned, the higher the percentage of EQE higher the efficiency of the device. In this chapter, the authors discuss the introduction of a solar cell, the working principle of DSSC, and the available research background for outdoor performance and long-term stability with a solar response of device i.e. EQE or IPCE.

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New Pyridinium Ylide Dyes for Dye Sensitized Solar Cell Applications

Cited by 36 publications

References 24 publications

N-Substitution of acridone with electron-donating groups: crystal packing, intramolecular charge transfer and tuneable aggregation induced emission

N-Substitution of acridone with electron-donating groups: crystal packing, intramolecular charge transfer and tuneable aggregation induced emission

Halogen‐Containing TPA‐Based Luminogens: Different Molecular Packing and Different Mechanoluminescence

Outdoor Performance and Stability Assessment of Dye-Sensitized Solar Cells (DSSCs)

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