期刊
ACS APPLIED ENERGY MATERIALS
卷 5, 期 11, 页码 14185-14192出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsaem.2c02714
关键词
Dye-sensitized solar cells; Stability; Glass frit sealing; Low-temperature encapsulation; Hermetic encapsulation; PEDOT
资金
- Portuguese Foundation for Science and Technology (FCT) [SFRH/BD/147201/2019]
- FCT/MCTES (PIDDAC) [LA/P/0045/2020, UIDB/00511/2020, UIDP/00511/2020]
- Norte Portugal Regional Operational Programme (NORTE 2020), under the PORTUGAL 2020 Partnership Agreement, through the European Regional Development Fund (ERDF) [NORTE-01-0145-FEDER-000054]
- Operational Programme for Competitiveness and Internationalisation (COMPETE 2020), under the Portugal 2020 Partnership Agreement, through the European Regional Development Fund (ERDF) [POCI-01-0247-FEDER-046109]
- FEDER funds through COMPETE2020-Programa Operacional Competitividade e Internacionalizacao (POCI) [POCI-01-0145-FEDER-030357]
- FCT/MCTES
- Banco Santander Totta, S. A.
A new low-temperature laser-assisted glass frit sealing process has been developed in this study, which is compatible with most heat-sensitive materials used in DSSCs and does not affect device performance. The sealing exhibits high hermeticity and durability, complying with relevant standards, and can be applied to various types of DSSC devices.
Hermetic encapsulation is crucial for the lifespan of dye-sensitized solar cells (DSSCs). Sealing with glass frits provides hermetic encapsulation and extends the lifetime of DSSCs yet so far has been performed at inconveniently high temperatures, above 300 degrees C, not compatible with most DSSCs materials. This study develops a new laser-assisted glass frit sealing process at low process temperature of 110 degrees C. For the first time, glass frit encapsulation becomes fully compatible with most heat-sensitive materials used in DSSCs and did not affect the device performance after sealing. Hermeticity and durability of the seal complies with MIL-STD-883 and IEC61646 standards. Unique glass frit sealing configuration, parameters of the laser beam, and sealing protocol are disclosed. The developed glass frit sealing is fully compatible with liquid junctions DSSCs based on iodine and cobalt mediators and the resulting devices showed 1000 h of stability under simulated solar light according to ISOS-L-2 testing conditions. The new low-temperature sealing method allows a simplified DSSCs fabrication with a fully hermetic and durable seal and extends the applicability of glass frit sealing to most types of the DSSCs devices.
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