Instability of dye-sensitized solar cells using natural dyes and approaches to improving stability – An overview

Kabir, Fahmid; Manir, M.S.; Bhuiyan, Mohammad Amir Hossain; Aftab, Sikandar; Ghanbari, Hamidreza; Hasani, Amirhossein; Fawzy, Mirette; Silva, G.L. Thushani De; Mohammadzadeh, Mohammad Reza; Ahmadi, Ribwar; Abnavi, Amin; Askar, Abdelrahman M.; Adachi, Michael M.

doi:10.1016/j.seta.2022.102196

Cited by 20 publications

(10 citation statements)

References 212 publications

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“…2. [28][29][30] They are usually composed of four parts: photoanode/electron transport layer, QDs (dye)/light absorption layer (perovskite layer), electrolyte/hole transport layer and counter electrode/metal electrode. Besides, POMs have been extensively studied as "electron sponge" in lithium, 31 sodium, 32 lithium sulfur batteries 33 and flow redox cells 34 due to the reversible multi-electron redox properties and its redox activity that can be regulated by doping (Co, V, Mn, etc.).…”

Section: Introductionmentioning

confidence: 99%

“…35,36 Fig. 2 Typical structures of (a) QDSSCs; 30 (b) DSSCs; 28 (c) mesoporous structure, (d) planar structure, (e) inverted structure of PSCs; (f) conventional and (g) inverted structure of OSCs. 29 The unique properties of POMs, such as structural persistence, strong electron acceptance, reversible redox characteristics, adjustable band structure, environmental friendliness, easy preparation and low-cost, make it become a novel and important potential material for various battery (cell) fields.…”

Section: Introductionmentioning

confidence: 99%

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Application of polyoxometalates in third-generation solar cells

Zhang

2023

Polyoxometalates

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Currently, the pursuit of low-cost, simple preparation, high efficiency and stability is still the main goal of researchers to develop the third generation of solar cells, which usually includes QDSSCs, DSSCs, PSCs and OSCs. Polyoxometalates (POMs) are a class of inorganic anionic metallic oxygen cluster compounds with abundant charge, skeleton structure, and excellent physical and chemical properties, such as strong electron acceptability, adjustable energy band structure, and reversible multi-electron redox properties, inexpensive and environmental friendliness. Therefore, numerous superior properties of POMs make them become building blocks for the preparation of other nanomaterials. Simultaneously, making full use of the extraordinary characteristics of POMs to reduce cost and improve the efficiency and stability of solar cells is an effective means to solve the current energy crisis. In this review, we summarize the research progress of various POMs molecules and their derived POMs-based nanomaterials in enhancing the performance of QDSSCs, DSSCs, PSCs and OSCs, meanwhile, the great development prospect of POMs in the field of photovoltaic devices in the future is forecasted.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Application of polyoxometalates in third-generation solar cells

Zhang

2023

Polyoxometalates

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“…The major drawbacks of natural dyes are their limited structural arrangements and their low stability upon contact with air and water [ 3 , 30 , 31 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental and Computational Studies on Bio-Inspired Flavylium Salts as Sensitizers for Dye-Sensitized Solar Cells

et al. 2022

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Six new bio-inspired flavylium salts were synthesized and investigated by a combined computational and experimental study for dye-sensitized solar cell applications. The compounds were characterized by FT–IR, UV–Vis, NMR spectroscopy, and LC–MS spectrometry techniques. The pH-dependent photochromic properties of the flavylium dyes were investigated through a UV–Vis spectroscopy study and revealed that they follow the same network of chemical reactions as anthocyanins upon pH changes. The structural and electronic properties of the dyes were investigated using density functional theory (DFT) and time-dependent density functional theory (TD–DFT). Geometry optimization calculation revealed that all dyes, regardless of the specie, flavylium cations or quinoidal bases, present a planar geometry. The photovoltaic performances of the dyes, in both flavylium and quinoidal base forms, were evaluated by the HOMO and LUMO energies and by calculating the light-harvesting efficiencies, the free energy change of electron injection, and the free energy change regeneration. The MO analysis showed that all dyes can inject electrons into the conduction band of the TiO2 upon excitation and that the redox couple can regenerate the oxidized dyes. The results obtained for the free energy change of electron injection suggest that the quinoidal bases should inject electrons into the semiconductor more efficiently than the flavylium cations. The values for the free energy change regeneration showed that the redox electrolyte can easily regenerate all dyes. Dipole moment analysis was also performed. DSSCs based on the dyes, in both flavylium and quinoidal base forms, were assembled, and their photovoltaic performances were evaluated by measuring the open-circuit voltage, the short circuit current density, the fill factor, and the energy conversion efficiency. Results obtained by both experimental and computational studies showed that the overall performances of the DSSCs with the quinoidal forms were better than those obtained with the flavylium cations dyes.

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“…The normal aging process is an unavoidable phenomenon of any device or system, in which the performance of the device is gradually reduced over time [14] . This condition is also observable in devices based on nanostructures [15] , [16] .…”

Section: Introductionmentioning

confidence: 99%

“…Like other devices, photovoltaic (PV) cells are also subjected to normal and early aging processes. The aging process depends on PV technology and environmental conditions, and affects the durability and stability of these electrical devices [14] , [19] , [20] , [21] . Moisture, light, oxygen, UV light, and operating temperature are the most important environmental factors which may result in early aging and instability of the PSCs in case of exceeding the permissible rages [20] , [21] , [22] .…”

Section: Introductionmentioning

confidence: 99%