New triarylamine organic dyes containing the 9-hexyl-2-(hexyloxy)-9H-carbazole for dye-sensitized solar cells

Su, Jianyang; Chen, Yu; Wu, Yungen; Ghimire, Raju; Xu, Ying‐Jun; Liu, Xiujie; Wang, Zhihui; Liang, Mao

doi:10.1016/j.electacta.2017.09.133

Cited by 15 publications

(4 citation statements)

References 59 publications

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“…Three organic dyes 15‐17 with an electron donor 9‐hexyl‐2‐(hexyloxy)‐9H‐carbazole (HHCBZ) were reported by Su et al 73 and, in contrast, 18 having 9‐hexyl‐9H‐carbazole (HCBZ) was also synthesized. Integration of the HHCBZ group into triarylamine offers many superiorities: (a) a redshift in the absorption peak and a raise in the overall MEC of the absorption bands; (b) a decrease in the recombination of charges in iodine‐ and cobalt‐based devices; and (c) an improved photovoltage/photocurrent and, hence, the PCE.…”

Section: Recent Developments In Cz‐based Dyesmentioning

confidence: 99%

Recent developments in metal‐free organic sensitizers derived from carbazole, triphenylamine, and phenothiazine for dye‐sensitized solar cells

et al. 2021

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Summary In the present context of increasing population, renewable and sustainable energy alternatives are very much essential to satisfy the necessities of the world. To satisfy this growing demand, scientists are prioritizing the production of cost‐effective and high‐performance clean energy appliances. Dye‐sensitized solar cells (DSSCs) are one such material that is at the forefront of modern solar cell technologies. Being one of the main components of DSSCs, metal‐free organic dyes play a crucial role in light processing and electron injection. In recent times, carbazole (CZ)‐, triphenylamine (TPA)‐, and phenothiazine (PTZ)‐based derivatives have been identified as suitable alternatives to Ru(II) polypyridyl complexes because they are easy to synthesize and exhibit excellent thermal and electronic properties. This review focuses largely on the latest developments in the use of monoanchored and multianchored CZ, TPA, and PTZ scaffolds for DSSC applications and focuses especially on the correlation between molecular design and photovoltaic performance. The physical properties of devices can be adjusted through the sensitizer's strategic design that helps to improve the performance of the devices. We tabulated the photovoltaic parameters corresponding to all dyes presented in this review. Also, applications of additives are presented after the systematic review on CZ‐, TPA‐, and PTZ‐based dyes.

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Section: Recent Developments In Cz‐based Dyesmentioning

confidence: 99%

Recent developments in metal‐free organic sensitizers derived from carbazole, triphenylamine, and phenothiazine for dye‐sensitized solar cells

et al. 2021

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“…Thus, it is desirable to look for alternative dyes. In recent years, various metal-free D−π–A organic dyes have been extensively studied, for example, porphyrin, − triarylamine, , thiophene, − coumarins, carbazole, and boron dipyrromethene (BODIPY) …”

Section: Introductionmentioning

confidence: 99%

“…Thus, it is desirable to look for alternative dyes. In recent years, various metal-free D−π−A organic dyes have been extensively studied, for example, porphyrin, 8−10 triarylamine, 11,12 thiophene, 13−15 coumarins, 16 carbazole, 17 and boron dipyrromethene (BODIPY). 18 BODIPY can be used as strong absorption sensitizers for DSSCs because of its easy structural modification, excellent photostability, and strong light absorption.…”

Section: ■ Introductionmentioning

confidence: 99%

Theoretical Design of D−π–A–A Sensitizers with Narrow Band Gap and Broad Spectral Response Based on Boron Dipyrromethene for Dye-Sensitized Solar Cells

Liu

et al. 2019

J. Chem. Inf. Model.

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Dye-sensitized solar cells based on boron dipyrromethene (BODIPY) have gained widespread attention in recent years because of their easy structural modification, strong light absorption, and photostability. In this paper, a series of dyes with single or double acceptors based on the BODIPY framework have been designed and compared by density functional theory calculation. Results show that the dyes with double acceptors exhibit smaller band gap and broader red-shift absorption peaks than their counterparts with single acceptors. To further improve the dye performance, polythiophenes and electron donating groups are successively introduced into BODIPY and donor moieties of double-acceptor dyes. The introduction of polythiophene effectively improved the light harvesting efficiency (LHE) from 0.79 to 0.96. And, the stronger electron donating groups create a narrow band gap, resulting in a broad absorption band in the range of 400–1600 nm. These modifications not only broaden the absorption range but also facilitate electron injection, thereby improving the photoelectric conversion efficiency, which is beneficial for the potential application of BODIPY sensitizers in the field of photovoltaics.

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“…The reports on investigation of different solvents including dioxane, chloroform, acetone, ethanol, methanol, methyltetrahydrofolate, dimethylformamide, acetonitrile, water and so forth are available in literature [16][17][18]. The choice of water as solvent is common as it appeared to support the dye structure stability and enhances the efficiency of DSSC but sometimes it desorbs the dye molecules in the electrolyte [19]. A study revealed that 10% of water does not affect the stability of dye structure and thus the performance of DSSC but the higher concentration may detach the dye molecules from the surface of titania [20,21].…”

mentioning

confidence: 99%

The effects of polar solvents on structural, electronic, and optical properties of organic dyes

Majid

Kiran

Sandhu

et al. 2022

Int J of Quantum Chemistry

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This study reports first principles investigations on effects of polar solvents acetonitrile, acetone, water, ethanol, and methanol on the structural, electronic, and optical properties of organic dyes named D1, D1A, D1B, and D1C. The solute‐solvent interaction studied via conductor like screening model revealed changes in structural parameters whereas dipole moment of all the dyes increased after immersing in the solvents. The relaxation of dyes structures in the solvents caused stabilization or destabilization of molecular orbitals which is responsible for spectral shifts in UV–visible absorption spectra. The absorbance and light harvesting efficiency of majority of dyes increased upon solvation which shows their suitability to use as sensitizer. The findings suggested that water is not a suitable solvent for the simulated dyes. The efficiency of solvated dyes D1, D1B, and D1C increased but that of D1B is decreased.

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New triarylamine organic dyes containing the 9-hexyl-2-(hexyloxy)-9H-carbazole for dye-sensitized solar cells

Cited by 15 publications

References 59 publications

Recent developments in metal‐free organic sensitizers derived from carbazole, triphenylamine, and phenothiazine for dye‐sensitized solar cells

Recent developments in metal‐free organic sensitizers derived from carbazole, triphenylamine, and phenothiazine for dye‐sensitized solar cells

Theoretical Design of D−π–A–A Sensitizers with Narrow Band Gap and Broad Spectral Response Based on Boron Dipyrromethene for Dye-Sensitized Solar Cells

The effects of polar solvents on structural, electronic, and optical properties of organic dyes

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