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Solid State Materials

All articles tagged with #solid state materials

science2 months ago•8 min saved

Solid-State Molecules Upconvert Visible Sunlight to UV Light in Breakthrough

Kyushu University researchers designed a solid-state organic material by attaching alkyl chains to dihydroindenoindenedene (DHI) to create precise gaps between molecules, enabling efficient triplet energy transfer. This yields a solid-state fluorescence quantum yield over 60% and, with a donor partner, about 1.9% visible-to-UV upconversion under outdoor solar light, opening possibilities for solar-driven photocatalysis, indoor air purification, and low-intensity 3D printing. A patent has been filed, highlighting the approach as a major step in photon upconversion and molecular self-assembly research.

via SciTechDaily|

#organic-semiconductors #photon-upconversion #science

science-and-technology3 years ago•3 min saved

"Revolutionizing Materials Design: Generative Neural Networks for Structure Prediction"

Recent advancements in structural feature representations and generative neural networks have the potential to efficiently predict stable crystal structures, enabling the design of solid-state crystalline materials with desired properties. Crystal structure prediction (CSP) plays a crucial role in discovering stable and metastable structures for materials of unknown structure. Efficient optimization techniques, such as evolutionary algorithms and particle swarm optimization, have led to the discovery of various new materials. The use of generative adversarial networks and Euclidean neural networks shows promise in learning and discovering crystallographic structures.

via Nature.com|

#computational-science #crystal-structures #generative-neural-networks