Panu Helistö

TL;DR: In this paper, transparent and conductive patterns of carboxyl functionalized single-walled carbon nanotubes (SWCNT-COOHs) and composites of those with poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT-PSS) were deposited on various substrates by inkjet printing.

TL;DR: A Green's function formalism is developed which quantitatively explains some observed discrepancies, e.g., the effect of a heat-absorbing substrate in the proximity of the sound source, and a generic ultimate limit for thermophone efficiency is found.

TL;DR: In this article, the authors demonstrate that a suspended metal wire array can be used to produce high-pressure sound waves over a wide spectrum using the thermoacoustic effect, and they have potential for applications especially in the ultrasound range.

TL;DR: The electrical properties of random networks of single-wall carbon nanotubes obtained by inkjet printing are studied and the positive temperature coefficient of channel resistance shows the nonmetallic behavior of the inkjet-printed films.

TL;DR: In this article, a mesoscopic kinetic-inductance radiation detector based on a long superconductor-normal metal-superconductor Josephson junction was proposed, which relies on large kinetic inductance variations under irradiation due to the exponential temperature dependence of critical current.