Optimizing photovoltaic performance in CuInS<sub>2</sub> and CdS quantum dot-sensitized solar cells by using an agar-based gel polymer electrolyte

Raphael, Ellen; Jara, Danilo H.; Schiavon, Marco A.

doi:10.1039/c6ra27635k

Cited by 51 publications

(20 citation statements)

References 48 publications

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“…Bearing in mind the idea to investigate the feasibility of stable, but sustainable solar cells with safe and truly nontoxic components, we decided to focus our efforts on low-cost, abundant bio-derived polymers and critical raw material (CRM)-free redox couples as attractive and feasible alternatives to common organic electrolyte redox mediators [ 33 , 34 , 35 , 36 , 37 , 38 , 39 ]. In this context, we employed a standard Pt-based counter-electrode, but a further improvement in the sustainability of aqueous DSSCs should consider the development of alternative counter-electrodes [ 40 , 41 , 42 ].…”

Section: Introductionmentioning

confidence: 99%

Hydrogel Electrolytes Based on Xanthan Gum: Green Route towards Stable Dye-Sensitized Solar Cells

et al. 2020

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The investigation of innovative electrolytes based on nontoxic and nonflammable solvents is an up-to-date, intriguing challenge to push forward the environmental sustainability of dye-sensitized solar cells (DSSCs). Water is one of the best choices, thus 100% aqueous electrolytes are proposed in this work, which are gelled with xanthan gum. This well-known biosourced polymer matrix is able to form stable and easily processable hydrogel electrolytes based on the iodide/triiodide redox couple. An experimental strategy, also supported by the multivariate chemometric approach, is used here to study the main factors influencing DSSCs efficiency and stability, leading to an optimized system able to improve its efficiency by 20% even after a 1200 h aging test, and reaching an overall performance superior to 2.7%. In-depth photoelectrochemical investigation demonstrates that DSSCs performance based on hydrogel electrolytes depends on many factors (e.g., dipping conditions, redox mediator concentrations, etc.), that must be carefully quantified and correlated in order to optimize these hydrogels. Photovoltaic performances are also extremely reproducible and stable in an open cell filled in air atmosphere, noticeably without any vacuum treatments.

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Section: Introductionmentioning

confidence: 99%

Hydrogel Electrolytes Based on Xanthan Gum: Green Route towards Stable Dye-Sensitized Solar Cells

et al. 2020

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“…There are two basic reasons because of that, properties of nanostructures change with their shape and size: quantum confinement effect and increment of volume to surface area ratio [21]. Various QD's such as CdS [22], CdSe [23], PbS [24], PbSe [25] have been used as sensitizer in QDSSCs. QDs have special features like Multiple exciton generation (MEG) of carrier [26], tunable optical band gap and broad optical absorption regions of solar spectrum [27], Hot electron injection [28].…”

Section: Special Features Of Quantum Dotsmentioning

confidence: 99%

Quantum Dot-sensitized Solar Cells: A Review

Bhambhani

2018

Bulletin EEI

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Quantum dot-sensitized solar cell (QDSSC) has an analogous structure and working principle to the dye sensitizer solar cell (DSSC). It has drawn great attention due to its unique features, like multiple exciton generation (MEG), simple fabrication and low cost. The power conversion efficiency (PCE) of QDSSC is lower than that of DSSC. To increase the PCE of QDSSC, it is required to develop new types of working electrodes, sensitizers, counter electrodes and electrolytes. This review highlights recent developments in QDSSCs and their key components, including the photoanode, sensitizer, electrolyte and counter electrode.

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“…Many developing countries do not have this renewable source of energy due to its commercialization. Thus, the discoveries of new materials and technologies with low environmental impact, national sources is a way to lower cost prices [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Natural dyes from amazon forest: potential application in dye-sensitized solar cells

et al. 2021

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In this work, plant dyes extracted from Amazon Forest are applied as a sensitizer in Dye-Sensitized Solar Cells. The selected plants were Euterpe oleracea, Arrabidaea chica, Bixa orellana, Genipa Americana, and Myrcia sylvatica, and the dyes were collected from fruits, leaves, seeds, pulp and seeds and stalk scrapings respectively. Characterization studies by the UV-vis spectroscopy made it possible to know the absorption spectra of each plant dye, and the X-ray diffraction technique allows the structural characterization of the nanostructured semiconductor layer. The solar cells were characterized according to their efficiency parameters (Voc, Jsc, FF and ? (%)), obtained from the current vs voltage curves. Such parameters proved to be modest, presenting Voc and Jsc values over 0.334 volts and 0.452 mA/cm2 for a photosensitized cell with the dyes extracted from Genipa americana. In this way, it was possible to verify the photoelectrochemical potential of the dyes extracted from plants of the Amazon Forest.

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Optimizing photovoltaic performance in CuInS₂ and CdS quantum dot-sensitized solar cells by using an agar-based gel polymer electrolyte

Abstract: Quantum dot-sensitized solar cells (QDSSCs) offer new opportunities to address the clean energy challenge, being one of the top candidates for third generation photovoltaics.

Cited by 51 publications

References 48 publications

Hydrogel Electrolytes Based on Xanthan Gum: Green Route towards Stable Dye-Sensitized Solar Cells

Hydrogel Electrolytes Based on Xanthan Gum: Green Route towards Stable Dye-Sensitized Solar Cells

Quantum Dot-sensitized Solar Cells: A Review

Natural dyes from amazon forest: potential application in dye-sensitized solar cells

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Optimizing photovoltaic performance in CuInS2 and CdS quantum dot-sensitized solar cells by using an agar-based gel polymer electrolyte

Abstract: Quantum dot-sensitized solar cells (QDSSCs) offer new opportunities to address the clean energy challenge, being one of the top candidates for third generation photovoltaics.

Cited by 51 publications

References 48 publications

Hydrogel Electrolytes Based on Xanthan Gum: Green Route towards Stable Dye-Sensitized Solar Cells

Hydrogel Electrolytes Based on Xanthan Gum: Green Route towards Stable Dye-Sensitized Solar Cells

Quantum Dot-sensitized Solar Cells: A Review

Natural dyes from amazon forest: potential application in dye-sensitized solar cells

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Product

Resources

About

Optimizing photovoltaic performance in CuInS₂ and CdS quantum dot-sensitized solar cells by using an agar-based gel polymer electrolyte