Photovoltaic Performance of Natural Dyes for Dye-Sensitized Solar Cells

Sang‒aroon, Wichien; Tontapha, Sarawut; Amornkitbamrung, Vittaya

doi:10.1016/b978-0-12-814541-8.00006-9

Cited by 13 publications

(10 citation statements)

References 57 publications

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“…where LHE represents the light-harvesting efficiency of a πconjugated polymer, given approximately by Equation ( 5) 42 for a vertical excitation. LHE is a constant within this estimate and can be taken out from the integral over λ in Equation ( 4).…”

Section: Propertiesmentioning

confidence: 99%

A comprehensive analysis of charge transfer effects on donor‐pyrene (bridge)‐acceptor systems using different substituents

Borges,

Guimarães,

Monteiro‐de‐Castro

et al. 2023

J Comput Chem

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The alternant polycyclic aromatic hydrocarbon pyrene has photophysical properties that can be tuned with different donor and acceptor substituents. Recently, a D (donor)‐Pyrene (bridge)‐A (acceptor) system, DPA, with the electron donor N,N‐dimethylaniline (DMA), and the electron acceptor trifluoromethylphenyl (TFM), was investigated by means of time‐resolved spectroscopic measurements (J. Phys. Chem. Lett. 2021, 12, 2226–2231). DPA shows great promise for potential applications in organic electronic devices. In this work, we used the ab initio second‐order algebraic diagrammatic construction method ADC(2) to investigate the excited‐state properties of a series of analogous DPA systems, including the originally synthesized DPAs. The additionally investigated substituents were amino, fluorine, and methoxy as donors and nitrile and nitro groups as acceptors. The focus of this work was on characterizing the lowest excited singlet states regarding charge transfer (CT) and local excitation (LE) characters. For the DMA‐pyrene‐TFM system, the ADC(2) calculations show two initial electronic states relevant for interpreting the photodynamics. The bright S1 state is locally excited within the pyrene moiety, and an S2 state is localized ~0.5 eV above S1 and characterized as a donor to pyrene CT state. HOMO and LUMO energies were employed to assess the efficiency of the DPA compounds for organic photovoltaics (OPVs). HOMO‐LUMO and optical gaps were used to estimate power conversion and light‐harvesting efficiencies for practical applications in organic solar cells. Considering the systems using smaller D/A substituents, compounds with the strong acceptor NO2 substituent group show enhanced CT and promising properties for use in OPVs. Some of the other compounds with small substituents are also found to be competitive in this regard.

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Section: Propertiesmentioning

confidence: 99%

A comprehensive analysis of charge transfer effects on donor‐pyrene (bridge)‐acceptor systems using different substituents

Borges,

Guimarães,

Monteiro‐de‐Castro

et al. 2023

J Comput Chem

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“…A dye sensitizer acts to absorb photons that contain energy equal to or higher than the energy gap of its molecules, improving the efficiency of DSSCs. Indeed, a sufficient driving force is required to convert light into electricity (Sang-aroon et al, 2019), providing an opportunity to design and develop molecular dyes for use as photosensitizers in DSSCs. Such dyes can either be derived from natural sources or be synthesized, and their molecular structures have been improved considerably by ongoing research.…”

Section: Photosensitizer and Molecular Developmentmentioning

confidence: 99%

“…Therefore, the DFT and time-dependent DFT (TD-DFT) methods have been used to calculate and predict the geometric structures of different dyes and explain their interactions within DSSC cells at an electron scale (Sang-aroon et al, 2012(Sang-aroon et al, , 2013(Sang-aroon et al, , 2014Chaiamornnugool et al, 2017;Tontapha et al, 2017). Among the natural sensitizing dyes, monascus (Sang-aroon et al, 2012), cochineal and lac dyes (Sang-aroon et al, 2013), orcein dyes (Sang-aroon et al, 2014), anthocyanins (Maiaugree et al, 2015a;Phinjaturus et al, 2016;Chaiamornnugool et al, 2017;Tontapha et al, 2017), mangosteen dyes (Maiaugree et al, 2015a;Tontapha et al, 2017), and others (Sang-aroon et al, 2019) have shown good photosensitizing properties in both theoretical and experimental procedures. The main properties of DSSCs with various dye sensitizers are summarized in Table 1.…”

Section: Photosensitizer and Molecular Developmentmentioning

confidence: 99%

“…Electrolytes are an important part of dye charge regeneration from its oxidized state to neutral state form by receiving electrons from redox mediators. The electrolyte-based redox couple system provides several benefits when applying an electrolyte to a device, such as (Krishna et al, 2019;Sang-aroon et al, 2019;Hasan et al, 2020):…”

Section: Electrolytesmentioning

confidence: 99%

“…3 /I − redox couple electrolyte is typically employed in DSSCs (Maiaugree et al, 2015a;Sang-aroon et al, 2019) as it provides the best electrochemical efficiency and is widely used with a metal film catalyst. However, an organic T 2 /T − electrolyte has also been used in a DSSC to take advantage of its high transmittance and low corrosivity (Towannang et al, 2012(Towannang et al, , 2015(Towannang et al, , 2018Maiaugree et al, 2013Maiaugree et al, , 2015aSang-aroon et al, 2019;Tangtrakarn et al, 2019;Tontapha et al, 2020). Indeed, an impressive efficiency of 2.63% for a DSSC-based T 2 /T − electrolyte was achieved with a natural dye sensitizer as studied by Maiaugree et al (2015a).…”

Section: An I −mentioning

confidence: 99%

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Fabrication of Functional Materials for Dye-sensitized Solar Cells

2021

Self Cite

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Dye-sensitized solar cells (DSSCs) have been developed as a promising photovoltaic cell type in recent decades because of their low cost, environmental friendliness, ease of fabrication, and suitability for a wide range of indoor and outdoor applications, especially under diverse shaded and low-light condition. They are typically composed of three main components: a transparent conducting oxide (TCO) substrate-based working electrode with wide-bandgap semiconductors and dye sensitizer molecules, an electrolytic mediator based on redox couple species, and a TCO-based counter electrode consisting of catalyst materials. The development of intrinsic and functional organic, inorganic, metal oxide, composite, and carbon-based materials has been intensively studied to enhance the efficiency of DSSCs. A simple and low-cost fabrication process that uses natural products is also considered essential for further large-scale production. In this article, we review the fabrication of various functional materials and their effects on DSSC performance.

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Photovoltaic and Optical Characterization of Organic Heterocyclic 6,6′‐Dibromoindigotin Crystal Under Changing Solvent Polarity by DFT Analysis

Hassan,

Sumrra,

2023

Cryst. Res. Technol.

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The photovoltaic and optical properties of 6,6′‐dibromoindigotin (DBI) crystal under changing solvent polarity are investigated through DFT analysis. It includes geometry optimization, global reactivity, UV–vis analysis, open circuit voltage (Voc), FMOs, and NBO analysis. The highest HOMO‐LUMO gap (Egap) value is found for the gaseous phase (1.82 eV), while the lowest Egap is found for dichloro methane (1.64 eV), and intermediate values with the other solvents. The molecule has a high IP of 2.48 eV, low EA of 0.74 eV, moderate polarity, and hardness (η). The maximum absorption wavelengths (λmax) of the compound in different solvents are dichloromethane and DMSO (373 nm), chloroform (372 nm), methanol and water (371 nm), toluene (367 nm), and gaseous (356 nm). Their Voc range is 0.2–0.28 eV. Among all, chloroform demonstrates the highest performance with a fill factor (FF) of 0.8630, normalized open circuit (Nor. Voc) of 31.69 eV, and Jsc of 26.47 mA cm−2. Toluene also shows promising results with an FF of 0.8060, Nor. Voc of 19.71 eV, and Jsc of 21.19 mA cm−2. Water, although not as effective as other solvents, still exhibits respectable values with an FF of 0.8315, Nor. Voc of 23.96 eV, and Jsc of 24.63 mA cm−2.

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Photovoltaic Performance of Natural Dyes for Dye-Sensitized Solar Cells

Cited by 13 publications

References 57 publications

A comprehensive analysis of charge transfer effects on donor‐pyrene (bridge)‐acceptor systems using different substituents

A comprehensive analysis of charge transfer effects on donor‐pyrene (bridge)‐acceptor systems using different substituents

Fabrication of Functional Materials for Dye-sensitized Solar Cells

Photovoltaic and Optical Characterization of Organic Heterocyclic 6,6′‐Dibromoindigotin Crystal Under Changing Solvent Polarity by DFT Analysis

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