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Rare earth element-enhanced TiO2 achieves high-efficiency photocatalytic overall water splitting

Researchers have developed a novel semiconductor material that significantly improves the efficiency of photocatalytic water splitting by eliminating charge recombination and facilitating efficient charge separation. The Sc-doped TiO2 semiconductor achieves a record-breaking quantum yield of 30.3% and a solar-to-hydrogen efficiency of ...

SourceChinese Academy of Sciences Headquarters·JournalJournal of the American Chemical Society·TypeExperimental study·DateApr 8, 2025

Aluminum scandium nitride films: Enabling next-gen ferroelectric memory devices

Researchers have discovered aluminum scandium nitride (AlScN) films that remain stable and maintain their ferroelectric properties at temperatures up to 600°C, making them promising candidates for next-generation ferroelectric memory devices. The films exhibit a high remnant polarization value and only a slight increase in coercive fie...

SourceTokyo Institute of Technology·JournalApplied Physics Letters·TypeExperimental study·DateJul 22, 2024

Caution: Shrinks when warm

A team of physicists has identified a material with negative thermal expansion, shrinking in size as it warms. The discovery challenges current theoretical understanding of thermal expansion and may lead to the development of more durable electronics.

SourceUniversity of Connecticut·JournalPhysical Review B·DateOct 8, 2015