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Tag Archives: moisture

Self-healing protection for perovskite solar

CityUHK perovskite researchers_from the left_Wei-Ting Wang_Prof Feng Shien-ping_Prof Angus Yip Hin-lap_Ning Zhou

City University of Hong Kong (CityUHK) has developed another approach to quell the self-destructive tendencies of perovskite solar cells in the face of moisture. It is a corrosion inhibitor that tackles ionic defects in the perovskite layer within the solar cell stack, even those created after manufacture. “Applying a living passivator on the perovskite surfaces enhances their resistance to environmental ...

Murata’s novel ground conductivity sensor now handles synthetic soils

Murata soil sensor

Murata’s novel soil sensor can now handle synthetic soils. “In recent years, the use of synthetic culture soil such as rock wool and coconut peat is popular for crops including tomatoes and strawberries,” according to the company. “Since the water retention capability of these kinds of culture soil is extremely high compared to general culture soil, proper measurement of water ...

No-added-solvent conformal coating can be sprayed, and dries in seconds

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Dow has introduced a solvent-less but sprayable silicone conformal coating that cures in seconds under UV light. Called Dowsil CC-8030, it is a one-part product that also includes moisture-cure for the nooks and crannies that UV cannot reach so well. “Other silicones support UV curing, but none are conformal coatings with a low enough viscosity for spray coating,” claimed Dow. CC-8030 is ...

Water means a second chance for over-looked organic semiconductors

martijn-kemerink-LinkopingU

Tiny quantities of water might be ruining potentially useful organic semiconductors, according to researchers at Linköping University, who have a way to fix it. Key to the issue are ‘traps’ – places where carriers – holes or electrons – get stuck and are unable to contribute to semiconductor action. “There are traps in all organic semiconductors, but they are probably ...

Water repellent coating improves capacitor reliability

Murate-water-shedding-capacitor-before-300x81-300x81.jpg

Murata has developed a water-repellent coating that it claims will increase the reliability of multi-layer ceramic capacitors. At issue is condensation – not just between the PCB and he capacitor, but on any capacitor surface that can gather condensation. When water wets the surface of the capacitor – top diagram – electromigration of electrode metals can occur which can eventually ...