Znaczące publikacje

Nano Energy - 8 August 2020, 105261 ((Elsevier)
M. Kasprzak, Marianna Sledzinska, K. Załęski, I. Iatsunskyi, Francesc Alzina, Sebastian Volz, Clivia M. Sotomayor Torres,

High-temperature silicon thermal diode and switch

A thermal rectifier/diode is a nonreciprocal element or system that enables preferential heat transport in one direction. In this work we demonstrate a single-material thermal diode operating at high temperatures. The diode is made of nanostructured silicon membranes exhibiting spatially and temperature-dependent thermal conductivity and, therefore, falling into the category of spatially asymmetric, nonlinear nonreciprocal systems. We used an all-optical state-of-the-art experimental technique to prove rectification along rigorous criteria of the phenomenon. Using sub-milliwatt power we achieve rectification of about 14%. In addition, we demonstrate air-triggered thermal switching and passive cooling. Our findings provide a CMOS-compatible platform for heat rectification and applications in energy harvesting, thermal insulation and cooling, as well as sensing and potentially thermal logic.
Wszystkie Publikacje

Najnowszy film

XRAY DIFFRACTION

XRAY diffraction 23.11.2018

Wszystkie filmy

Kontakt | Baza kontaktów | RSS | Login
© 2021 CENTRUM NANOBIOMEDYCZNE UAM | ul. Wszechnicy Piastowskiej 3, PL 61614 Poznań, Poland | tel.+48 61 829 67 04.