thermoelectric devices tagged posts

In a new paper published in Science, researchers at the Harvard and Raytheon BBN Technology have advanced our understanding of graphene’s basic properties, observing for the first time electrons in a metal behaving like a fluid. Credit: Peter Allen/Harvard SEAS

Researchers have made a breakthrough in our understanding of graphene’s basic properties, observing for the first time electrons in a metal behaving like a fluid. This research could lead to novel thermoelectric devices as well as provide a model system to explore exotic phenomena like black holes and high-energy plasmas. In order to make this observation, the team improved methods to create ultra-clean graphene and developed a new way measure its thermal conductivity.

In ordinary, 3D metals, electrons hardly interact with each othe...

Berkeley Lab researchers have experimentally confirmed strong in-plane anisotropy in thermal conductivity along the zigzag (ZZ) and armchair (AC) directions of single-crystal black phosphorous nanoribbons. Credit: Junqiao Wu, Berkeley Lab

Researchers have confirmed single-crystal black phosphorous nanoribbons display a strong in-plane anisotropy in thermal conductivity, up to a factor of 2, along the zigzag and armchair directions of single-crystal black phosphorus nanoribbons. An experimental revelation that should facilitate the future application of this highly promising material to electronic, optoelectronic and thermoelectric devices.

“Imagine the lattice of black phosphorus as a 2D network of balls connected with springs, in which the network is softer along one direction of the plan...