The application of a novel D−A− π − A phenothiazine-based organic dye with N719 in efficient parallel tandem dye-sensitized solar cells

Shi, Songqing; Huang, Shucheng; Shao, Wu; Kong, Xiangfei; Liu, Bo; Hu, Zhenguang; Wu, Wenjun; Tan, Hongwei

doi:10.1016/j.synthmet.2023.117344

Cited by 5 publications

(2 citation statements)

References 46 publications

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“…The special architecture and mechanism of T-DSSCs allow them to perform exceptionally well in overcoming the disadvantages of cosensitization. 134–137 Until now, only few studies on tandem devices based on porphyrin dyes have been reported. 119,138 Hence, more research is desired in this area in the future.…”

Section: Discussionmentioning

confidence: 99%

Recent advances in the approaches for improving the photovoltaic performance of porphyrin-based DSSCs

Huang,

Li,

et al. 2024

Chem. Commun.

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Section: Discussionmentioning

confidence: 99%

Recent advances in the approaches for improving the photovoltaic performance of porphyrin-based DSSCs

Huang,

Li,

et al. 2024

Chem. Commun.

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“…Porphyrin dyes and metal-free organic dyes were successfully employed in T-DSSCs by virtue of their perfectly complementary absorption spectra, with the highest PCE reported up to 14.64% . In addition, during our previous exploratory work on tandem devices, the parallel T-DSSCs (PT-DSSCs) with a doubled-sided Pt electrode, which are composed of a ruthenium dye N719 -based top cell and a phenothiazine organic dye PTZ-15 -based bottom cell, were manufactured and exhibited a high photoelectric conversion efficiency of 10.85%, which was higher than those of N719 (9.28%) and PTZ-15 (3.49%) under the same condition, and confirmed the suitability of ruthenium dyes and metal-free organic dyes in T-DSSCs. Nonetheless, due to the complex purification and expensive cost of ruthenium dyes and porphyrin dyes, , it is clear that all of them are not suitable for large-scale deployment in research concerning cosensitization and T-DSSCs if the purpose of promoting the industrialization of DSSCs is to be attained.…”

Section: Introductionmentioning

confidence: 99%

Molecular Engineering Strategies of Spectral Matching and Structure Optimization for Efficient Metal-Free Organic Dyes in Dye-Sensitized Solar Cells: A Theoretical Study

Zheng,

Huang,

Liu

et al. 2024

J. Phys. Chem. A

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Metal-free organic dyes are promising dyes that can be applied widely in dye-sensitized solar cells (DSSCs). The rational design and selection of dyes with complementary absorption can promote the development of methods that can enhance the utilization of incident light by DSSCs, such as cosensitization and tandem devices. Based on these opinions, the structure of the reported high-performance metal-free organic dye ZL003 is used as a template to design two new metal-free organic dyes, HX-1 and HX-2, by replacing its donor unit with a 2-phenothiazine-phenylamine unit and fusing its three independent π-bridge units into a whole with the aim of driving the red shift and the blue shift of the absorption spectra of ZL003, respectively. Through theoretical investigation, it is demonstrated that the perfect complementary optical absorption of HX-1 and HX-2 can be realized as the shift of the absorption spectra of ZL003 to different directions, which means their feasibility to the application in cosensitization or tandem dye-sensitized solar cells (T-DSSCs). Furthermore, it is hypothesized that HX-1 may be the dye with better photovoltaic performance than ZL003 by modeling their intramolecular chargetransfer (ICT) processes, TiO 2 surface adsorption, and photovoltaic parameters. The short-circuit current density (J sc ) and photoelectric conversion efficiency (PCE) of HX-1 are 23.10 mA•cm −2 and 21.26% in theory, compared to those of 20.68 mA•cm −2 and 19.64% in ZL003 at the same computational level, respectively. In view of the complementary optical properties, the combination of HX-1 with HX-2 may be a reasonable option for dyes for the development of a highly efficient cosensitization system or T-DSSCs in the future. In terms of such findings, these two novel metal-free organic dyes may have bright prospects in the research of highly efficient DSSCs, and this work can provide a reference for the design of dyes with complementary absorption through simple structural adjustments of the realistic dyes with high photovoltaic performance.

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Cocktail co-sensitization of two novel metal-free dyes and N-719: A promising strategy for enhanced performance of dye-sensitized solar cells

Al name,

Hossan

2023

Journal of Photochemistry and Photobiology A: Chemistry

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The application of a novel D−A− π − A phenothiazine-based organic dye with N719 in efficient parallel tandem dye-sensitized solar cells

Cited by 5 publications

References 46 publications

Recent advances in the approaches for improving the photovoltaic performance of porphyrin-based DSSCs

Recent advances in the approaches for improving the photovoltaic performance of porphyrin-based DSSCs

Molecular Engineering Strategies of Spectral Matching and Structure Optimization for Efficient Metal-Free Organic Dyes in Dye-Sensitized Solar Cells: A Theoretical Study

Cocktail co-sensitization of two novel metal-free dyes and N-719: A promising strategy for enhanced performance of dye-sensitized solar cells

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