Fully glass frit encapsulated dye-sensitized solar cells: Challenges for hermetical sealing of electrolyte injection holes

Capitão, Jeffrey; Martins, Jorge; Emami, Seyedali; Ivanou, Dzmitry; Mendes, Adélio

doi:10.1016/j.solener.2022.12.001

Cited by 6 publications

(4 citation statements)

References 50 publications

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“…The observed good stability of polymer-passivated N719/ triiodide DSSCs aligns well with previous studies, 27,41,67 which also suggest, among other factors, the importance of properly selected coadsorbents, electrolyte additives, and mitigating extrinsic degradation factors, such as electrolyte escape or water ingress through the sealing, 66 to achieve a representative lifetime of the devices.…”

Section: Long-term Stability Of the Devicessupporting

confidence: 90%

“…This should be addressed in the next studies by implementing a more robust encapsulation . Full encapsulation with glass, which provides the highest possible degree of hermeticity, is already an available option for DSSCs; , extrinsic degradation factors caused by electrolyte leakage, oxygen ingress, or moisture are eliminated, allowing the fabrication of stable liquid junction cells. Another option to extend the lifetime of the cells and study their long-term stability is to use electrolytes with a lower volatility, which we further investigated (Figure e,f).…”

Section: Resultsmentioning

confidence: 99%

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Improved Interfacial Electron Dynamics with Block Poly(4-vinylpyridine)–Poly(styrene) Polymers for Efficient and Long-Lasting Dye-Sensitized Solar Cells

Rodrigues,

Abreu,

Sauvage

et al. 2024

ACS Appl. Polym. Mater.

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Dye-sensitized solar cells (DSSCs) have recently entered the market for indoor photovoltaics. Fast electron injection from dye to titania, the lifetime of the excited dye, and the suppression of back electron recombination at the photoanode/electrolyte interface are crucial for a high photocurrent conversion efficiency (PCE). This study presents block copolymers of poly(4vinylpyridine) and poly(styrene)-P4VP 67 -b-PSt x (x=23;61) as efficient accelerators of electron injection from dye to titania with extended lifetime excited states and long-lasting back electron recombination suppression. P4VP 67 -b-PSt 23 and P4VP 67 -b-PSt 61 rendered devices with PCEs of 10.0 and 9.8%, respectively, under AM 1.5G light; PCEs of 19.4 and 16.4% under 1000 lx LED light were attained. Copolymers provided a stable PCE with the two most popular I 3 − /3I − electrolytes based on ACN and 3methoxypropionitrile solvents; PCE history was tracked in the dark and under 1000 h of continuous light soaking with passive load according to ISOS-D1 and ISOS-L2 aging protocols, respectively. The impact of the polymer molecular structure on electron recombination, charge injection, dye anchoring, light absorption, photocurrent generation, and PCE and the long-term history of photovoltaic metrics are discussed.

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Section: Long-term Stability Of the Devicessupporting

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Improved Interfacial Electron Dynamics with Block Poly(4-vinylpyridine)–Poly(styrene) Polymers for Efficient and Long-Lasting Dye-Sensitized Solar Cells

Rodrigues,

Abreu,

Sauvage

et al. 2024

ACS Appl. Polym. Mater.

Self Cite

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“…As an alternative, Martins et al proposed laser-assisted fritting, which is more compatible with other cell components because it uses laser beams that only raise the temperature for a very short time (a few seconds) [42]. Such sealing methods may be the most effective solution, but they are also more expensive than conventional sealants [43]. It may, however, be argued that the increasing market share of laser technology could make the complete sealing of DSSC using laser-assisted glass fritting commercially viable.…”

Section: Leakage Issues and Sealing Methodsmentioning

confidence: 99%

A Review on Liquid Electrolyte Stability Issues for Commercialization of Dye-Sensitized Solar Cells (DSSC)

Anitha

Dotter

2023

Energies

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Dye-sensitized solar cells have been under development for the last three decades but are yet to see the market. This has been attributed to stability issues of the electrolyte in the cell. Electrolytes can be liquid, quasi-solid, or solid. Liquid electrolytes were the first to be developed and, therefore, have been subject to radical revisions in both composition and applicability. They have shown the best power conversion efficiencies but have poor thermal stability. Although quasi-solid and solid-state electrolytes were developed to overcome these stability issues, they too have their limits. The aim of this paper is to explore the development of liquid electrolytes, outlining the current state of the technology and considering their potential in the photovoltaic market.

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“…However, laser technology makes the cell manufacturing process complex and expensive. [34,35] Furthermore, the PCE of the fabricated DSSCs with this technique was not high due to limited dye loading in the photoanode. To solve the stability issue in DSSCs, in this study, we have fabricated the device with highly efficient and stable dye Y123, Cu(tmby) 2 þ/2þ -based polymer gel electrolyte (PGE) in highly boiling point solvent 3-methoxypropionitrile (MPN), and Pt/PC CE.…”

Section: Introductionmentioning

confidence: 99%

Stability and Reliability of Dye‐Sensitized Solar‐Cell Mini‐Module for Photocharging Li‐Ion‐Battery‐Connected Internet of Things

Aftabuzzaman,

Masud,

Kim

2024

Solar RRL

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Dye‐sensitized solar cells (DSSCs) integrated Li‐ion batteries (LIBs) are considered a promising solution as a wireless power source for the increasing number of miniaturized portable devices and the Internet of Things (IoTs). DSSCs have high power conversion efficiency (PCE) under indoor light, are low cost, easy to manufacture, and environmentally friendly. However, DSSCs suffer from stability issues because they use volatile electrolyte solvents that leak through the seal. To solve this problem, we have used a polymer gel electrolyte (PGE) based on the high‐boiling solvent 3‐methoxypropionitrile (MPN, bp = 164‐165 °C), and the backside of the cells were sealed by hot press using surlyn and Al foil. A highly stable and efficient counter electrode, Pt/porous carbon (Pt/PC), was also used to fabricate the devices, which show a high PCE of 25.7‐29.4% under the illumination of 500‐2000 lux. The fabricated DSSC shows outstanding stability in the room condition. After 113.0 days, the cells did not show any efficiency deterioration. Moreover, only 18.2% of the efficiency of the cells decreased when the stability test was carried out under rigorous conditions. A mini‐module of 13.3 cm2 was fabricated with the same condition and showed a PCE of 22.9‐23.3% and Pmax of 166.4‐643.0 μW under the illumination of 500‐1000 lux. The mini‐module was then wire‐connected with a commercially available Li‐ion battery (LIB, Maxell ML2032) and an IoT device (ZigBee temperature and humidity sensor). The mini‐module generates a higher power output than the power consumed by the IoT device and can recharge the LIB while operating the IoT device, indicating the reliability of the DSSC mini‐module for photocharging LIB as a wireless power source for the IoT devices.This article is protected by copyright. All rights reserved.

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Fully glass frit encapsulated dye-sensitized solar cells: Challenges for hermetical sealing of electrolyte injection holes

Cited by 6 publications

References 50 publications

Improved Interfacial Electron Dynamics with Block Poly(4-vinylpyridine)–Poly(styrene) Polymers for Efficient and Long-Lasting Dye-Sensitized Solar Cells

Improved Interfacial Electron Dynamics with Block Poly(4-vinylpyridine)–Poly(styrene) Polymers for Efficient and Long-Lasting Dye-Sensitized Solar Cells

A Review on Liquid Electrolyte Stability Issues for Commercialization of Dye-Sensitized Solar Cells (DSSC)

Stability and Reliability of Dye‐Sensitized Solar‐Cell Mini‐Module for Photocharging Li‐Ion‐Battery‐Connected Internet of Things

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