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Optical materials news, October 2017

Defects responsible for photoluminescence in little-studied perovskite

Bromine vacancies that trap passing excitons are the source of the strong photoluminescence in a little-studied perovskite.

Scientists have produced novel photocatalysts by coating aluminum nanoparticles with islands of various different metals.

Researchers have come up with a new hybrid nanomaterial that can harness solar energy to generate hydrogen from seawater.

Scientists have increased the length of time that organic materials can emit luminescence from minutes to over an hour.

By finding a way to sprinkle the surface of lead-sulphide quantum dots with extra sulphur, scientists have enhanced their charge transport properties.

A novel perovskite solar cell retains more than 95% of its 20% conversion efficiency under full sunlight illumination for more than 1000 hours.

Scientists have uncovered a strategy for using surface tension to grow perovskites into centimeter-scale, highly pure crystals.

By precisely controlling the size and positioning of quantum dots in a superlattice, scientists are able to finely tune its optical properties.

Researchers have shown how laser light can be used to forge graphene into 3D objects such as a pyramid.

Scientists have discovered a two-dimensional alloy with an optical bandgap that can be tuned by the temperature used to grow the alloy.

Glycol ethers can significantly improve the structure and alignment of perovskite grains in the thin films used in solar cells.

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