Search results for dopant

Materials Science Dec 13, 2021

Researchers enhance thermoelectric performance of SnTe

Thermoelectric material (TE) realizes the conversion of electricity from waste heat. Since SnTe contains toxic-free elements and possesses the high-symmetry rock salt crystal structure, it has gained much attention in the ...

Biochemistry Nov 30, 2021

Generating glow-in-the-dark light using organic materials

Glow-in-the-dark materials are used worldwide for emergency signs, watches, and paint. This useful characteristic fuels a global market worth approximately US$400 million. But the inorganic crystals that are currently needed ...

Nanomaterials Nov 16, 2021

A new oxide layer enhancement for perovskite electronic materials

As our lifestyles become ingrained in flexible electronics, smart devices, artificial intelligence, the internet of things, etc., high performance, electronic components that can perform high speed data collection, processing, ...

Nanophysics Nov 1, 2021

Researchers move closer to controlling two-dimensional graphene

The device you are currently reading this article on was born from the silicon revolution. To build modern electrical circuits, researchers control silicon's current-conducting capabilities via doping, which is a process ...

Nanomaterials Oct 18, 2021

Synthesizing double perovskite nanocrystals with bright emission based on triplet self-trapped excitons

Different from the narrow band emission based on free excitons in lead-perovskite nanocrystals (NCs), the low electronic dimensionality in lead-free double perovskite NCs can lead to self-trapped excitons (STEs), generating ...

Nanomaterials Sep 22, 2021

Elements in liquid metals compete to win the surface

Some alloys are in the liquid state at or near room temperature. These alloys are usually composed of gallium and indium (elements used in low energy lamps), tin and bismuth (materials used in constructions). The ratio and ...

Nanophysics Sep 21, 2021

Electrons on the edge: The story of an intrinsic magnetic topological insulator

An intrinsic magnetic topological insulator MNBI2TE4 has been discovered with a large band gap, making it a promising material platform for fabricating ultra-low-energy electronics and observing exotic topological phenomena.

Optics & Photonics Sep 20, 2021

Molecule-mediated surface reconstruction enables giant upconversion luminescence enhancement

National University of Singapore researchers have developed a synthetic method to enhance upconversion luminescence in protein-sized lanthanide-doped nanocrystals by surface reconstruction through molecule coordination. This ...

Nanophysics Sep 16, 2021

Implanted atoms create unique electrical IDs that distinguish bona fide devices from forgeries

If someone sells you a luxury handbag from Paris, France, but it turns out be a forgery from Paris, Texas, the counterfeit item might cost you a thousand bucks and the crook could wind up in jail. But if a counterfeit electronic ...

Materials Science Sep 10, 2021

How chlorine stabilizes next-gen solar cells at an atomic scale

A team of researchers led by Professor Yabing Qi in the Energy Materials and Surface Sciences Unit at the Okinawa Institute of Science and Technology Graduate University (OIST) in Japan have imaged the atoms at the surface ...

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