Toward Eco-Friendly Dye-Sensitized Solar Cells (DSSCs): Natural Dyes and Aqueous Electrolytes

Kim, Jihye; Kim, Dong-Hyuk; So, Ju‐Hee; Koo, Hyung‐Jun

doi:10.3390/en15010219

Cited by 42 publications

(19 citation statements)

References 134 publications

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“…Solar photovoltaic technology is considered to be mainstream renewable technology with a great potential to generate clean, reliable, scalable, and affordable electricity [163]. However, from the materials engineering point of view, as regards circuit design, many issues still need to be resolved [164].…”

Section: Solar Cellmentioning

confidence: 99%

Towards Integration of Two-Dimensional Hexagonal Boron Nitride (2D h-BN) in Energy Conversion and Storage Devices

2022

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The prominence of two-dimensional hexagonal boron nitride (2D h-BN) nanomaterials in the energy industry has recently grown rapidly due to their broad applications in newly developed energy systems. This was necessitated as a response to the demand for mechanically and chemically stable platforms with superior thermal conductivity for incorporation in next-generation energy devices. Conventionally, the electrical insulation and surface inertness of 2D h-BN limited their large integration in the energy industry. However, progress on surface modification, doping, tailoring the edge chemistry, and hybridization with other nanomaterials paved the way to go beyond those conventional characteristics. The current application range, from various energy conversion methods (e.g., thermoelectrics) to energy storage (e.g., batteries), demonstrates the versatility of 2D h-BN nanomaterials for the future energy industry. In this review, the most recent research breakthroughs on 2D h-BN nanomaterials used in energy-based applications are discussed, and future opportunities and challenges are assessed.

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Section: Solar Cellmentioning

confidence: 99%

Towards Integration of Two-Dimensional Hexagonal Boron Nitride (2D h-BN) in Energy Conversion and Storage Devices

2022

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“…DSSC is composed of a photoanode (an electrode with wide band gap semiconductor like nanocrystalline TiO2), sensitizer (a suitable dye molecule), redox electrolyte (iodide/triiodide), and the counter electrode to catalyze electron regeneration (13,14).…”

Section: Introductionmentioning

confidence: 99%

“…It is continually developed to obtain the most stable and effective sensitizers that can promote electron injection into TiO2 conduction band and improve the electrical conversion of DSSC. Inorganic sensitizers such as polypyridyl ruthenium, porphyrins, and perovskite halides have exhibited high conversion efficiency in harvesting sunlight energy (14). However, these sensitizers are synthetic dyes that are toxic, expensive, and complicated to synthesize (17).…”

Section: Introductionmentioning

confidence: 99%

Dye Sensitized Solar Cell (DSSC) Fabrication Using Methanol Extract of Onion Peel as a Natural Sensitizer

Adu

2022

Journal of the Turkish Chemical Society Section A: Chemistry

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Methanol extracts of onion peel waste (Allium cepa) were applied as natural sensitizer in Dye-Sensitized Solar Cell (DSSC) fabrication. This research investigated the dye characteristics of onion peel extract and its power conversion efficiency. Onion peel extraction was carried out using unacidified methanol extract (UME) and acidified methanol extract (AME). Dye absorption was characterized by UV-Vis Spectrophotometer at a wavelength of 200-800 nm and FT-IR at a wave number of 4000-500 cm-1. The power conversion efficiency of the fabricated DSSC was determined by calculating the voltage and current generated by the multimeter. The red onion peel extracts, both acidified and unacidified methanol, had maximum absorption at UV-Visible range (457, 659 and 662 nm). Onion peel extract has several functional groups such as –OH, C=O, C-O-C, C=C, and C-H aromatics- showing specific absorption corresponding to the anthocyanin structure. A solar energy conversion efficiency of η= 0.0413% was obtained from UME extract with a short circuit current of up to Jsc=0.6031 mAcm-2 and a fill factor of 0.2764.

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“…A problem that still limits their efficiency is the low light-harvesting capability (LHC) [ 8 ]. Particularly, DSSCs emerged as technically and economically credible alternatives [ 1 , 2 , 3 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ]. Their working principle considers increasing the LHC by including a layer of molecular dyes to potentialize the exciton creation.…”

Section: Introductionmentioning

confidence: 99%

Organic Electronics from Nature: Computational Investigation of the Electronic and Optical Properties of the Isomers of Bixin and Norbixin Present in the Achiote Seeds

et al. 2022

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Organic compounds have been employed in developing new green energy solutions with good cost-efficiency compromise, such as photovoltaics. The light-harvesting process in these applications is a crucial feature that still needs improvements. Here, we studied natural dyes to propose an alternative for enhancing the light-harvesting capability of photovoltaics. We performed density functional theory calculations to investigate the electronic and optical properties of the four natural dyes found in achiote seeds (Bixa orellana L.). Different DFT functionals, and basis sets, were used to calculate the electronic and optical properties of the bixin, norbixin, and their trans-isomers (molecules present in Bixa orellana L.). We observed that the planarity of the molecules and their similar extension for the conjugation pathways provide substantially delocalized wavefunctions of the frontier orbitals and similar values for their energies. Our findings also revealed a strong absorption peak in the blue region and an absorption band over the visible spectrum. These results indicate that Bixa orellana L. molecules can be good candidates for improving light-harvesting in photovoltaics.

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Toward Eco-Friendly Dye-Sensitized Solar Cells (DSSCs): Natural Dyes and Aqueous Electrolytes

Cited by 42 publications

References 134 publications

Towards Integration of Two-Dimensional Hexagonal Boron Nitride (2D h-BN) in Energy Conversion and Storage Devices

Towards Integration of Two-Dimensional Hexagonal Boron Nitride (2D h-BN) in Energy Conversion and Storage Devices

Dye Sensitized Solar Cell (DSSC) Fabrication Using Methanol Extract of Onion Peel as a Natural Sensitizer

Organic Electronics from Nature: Computational Investigation of the Electronic and Optical Properties of the Isomers of Bixin and Norbixin Present in the Achiote Seeds

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