Rational design of triphenylamine dyes for highly efficient p-type dye sensitized solar cells

Zhu, Linna; Yang, Hong Bin; Zhong, Cheng; Li, Chang Ming

doi:10.1016/j.dyepig.2014.01.024

Cited by 43 publications

(19 citation statements)

References 35 publications

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“…Considering the charge transfer resistance of NiO electrodes to be the same for the three dyes, we argue that the photoelectrode sensitized with dye W2 has a higher hole injection efficiency and less charge recombination loss for transporting to the external circuit. This might originate from the octane chain in W2, which could effectively prevent charge recombination between the hole in NiO and the electron from the electrolyte, as has been reported in the literature 34. On the other hand, for the photoelectrode sensitized with dye W3, the lower dye loading resulted in inefficient absorption on the NiO film, which thus leads to a lower photocurrent.…”

Section: Resultsmentioning

confidence: 73%

Copper‐Catalyzed Formation of C–O Bonds by Oxidative Coupling of Benzylic Alcohols with Ethers

et al. 2014

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Section: Resultsmentioning

confidence: 73%

Copper‐Catalyzed Formation of C–O Bonds by Oxidative Coupling of Benzylic Alcohols with Ethers

et al. 2014

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“…The electrochemically HOMO energy levels of ZnPc-1 and ZnPc-2 were calculated as À4.81 and À4.61 eV, respectively. The lowest unoccupied molecular orbital (LUMO) levels were estimated from the differences between the HOMO energy levels and E 0-0 [26]. The LUMO levels of the phthalocyanines were estimated to be À3.01 and À2.87 eV, respectively.…”

Section: Resultsmentioning

confidence: 99%

Asymmetric phthalocyanine derivatives containing 4-carboxyphenyl substituents for dye-sensitized solar cells

et al. 2015

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“…Another report has utilized TPA as luminescent material in organic light-emitting diodes [7]. TPA-based small molecules, with electron-donor architecture, are being studied in sensitized solar cells [8][9][10]. Other polymers with TPA units have been also reported, the polymers showed strong fluorescence in solid state and can be used as non-doped emitter to fabricate emitting diodes [11].…”

Section: Introductionmentioning

confidence: 96%

Effect of triphenylamine as electron-donor evenly spaced in 2, 4, 6 and 8 thiophene units of the main chain: synthesis and properties

et al. 2015

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Several poly(thiophene) derivatives containing triphenylamine (TPA) as electron-donor were synthesized by chemical homopolymerization in CHCl 3 media using FeCl 3 as oxidizing agent. Monomers containing TPA bonded by imine groups to terminal thiophene, bithiophene, terthiophene units allows polymerization to be performed in conditions similar to thiophene. TPA units are regularly spaced in 2, 4, 6 and 8 thiophenyl units in the main chain. TPA electron-donor effect on the polymers chains, as compared to poly(thiophene) was studied. Polymers, labeled as poly(TPA-Th), poly(TPA-biTh) and poly(TPA-Terth) were characterized by 1 H-NMR, FT-IR and UV-visible spectroscopy, elemental analysis, thermal stability (TGA) intrinsic viscosity, differential scanning calorimetry (DSC) and electrochemically using cyclic voltammetry (CV). The characterizations are consistent with the proposed structures. The polymers exhibited different optical absorption.They exhibited low intrinsic viscosity, a different effective conjugation and high thermal stability. Moreover, the polymers displayed two redox processes with a redox potential lower than that of poly(thiophene). Highest Occupied Molecular Orbital (HOMO), Lowest Unoccupied Molecular Orbital (LUMO) and optical band gap (E g ) were measured and the obtained values were compared with those of poly(thiophene). The effect of the presence of TPA units in the thiophenyl chains on HOMO, LUMO, band gap, redox potential and on TGA is reported. To complete the series, HOMO/LUMO levels and band gap of a polymer containing TPA with 8 thiophenyl units in the chain were determined using theoretical calculations. The results proved that, with respect to poly(thiophene), it is possible to decrease HOMO and LUMO without changing the band gap, projecting itself as a potential polymer to be studied in organic photocells.

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Rational design of triphenylamine dyes for highly efficient p-type dye sensitized solar cells

Cited by 43 publications

References 35 publications

Copper‐Catalyzed Formation of C–O Bonds by Oxidative Coupling of Benzylic Alcohols with Ethers

Copper‐Catalyzed Formation of C–O Bonds by Oxidative Coupling of Benzylic Alcohols with Ethers

Asymmetric phthalocyanine derivatives containing 4-carboxyphenyl substituents for dye-sensitized solar cells

Effect of triphenylamine as electron-donor evenly spaced in 2, 4, 6 and 8 thiophene units of the main chain: synthesis and properties

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