20.500.12556/RUL-178393 Electrical properties of collapsed MoS$_2$ nanotubes Molybdenum disulfide (MoS$_2$) is a promising material for future high-performance and ultra-low-power electronics. Growth from a vapor phase at chemical equilibrium enables the production of crystals possessing a relatively low density of structural defects. Besides thin MoS$_2$ flakes, MoS$_2$ nanotubes (NTs) and collapsed NTs in the shape of nanoribbons (NRs) are also synthesized in the same growth process. Here, we present the first study on the structural and electrical properties of the NRs. High resolution electron microscopy revealed a chiral structure of the NRs with no peculiarities at the inner interface where both walls are in contact. In contrast, resonant Raman spectroscopy revealed the presence of bands typical of a few layers thick MoS$_2$, suggesting that some of the layers of the NR are partially split. Contact current imaging spectroscopy (CCIS) revealed longitudinal wrinkles on the NR surface, with elevated regions found to be more conductive than the depressed areas. The edges of the NR, where molecular layers are strongly curved but not broken, exhibit varying conductivity. While some parts exhibit zero conductivity, others show much higher conductivity than the central part of the NR, suggesting an electron confinement effect. Charge injections strongly altered the NR’s work function and induced changes in the NR’s topography. The surface wrinkling was intensified, and the NR tended to rotate around its longitudinal axis. This rotation is explained as the reverse piezoelectric effect. quantum electronics superconductivity nanomaterials kvantna elektronika superprevodnost nanomateriali true false true Angleški jezik Slovenski jezik Članek v reviji 2026-01-26 13:21:23 2026-01-26 13:21:27 2026-01-27 04:23:10 0000-00-00 00:00:00 2025 0 0 Str. 12361–12370 iss. 19 Vol. 17 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 539 2040-3364 10.1039/D5NR00284B 236103427 d5nr00284b.pdf d5nr00284b.pdf 1 EFA19A0DE40EBFD4EB206B71B6B9D900 734a78dccbb04bcd17c730fd0670e091f13e9aac64cea78308ca060661918e59 f3c8dbe5-fab1-11f0-a1ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=226197 https://pubs.rsc.org/en/content/articlelanding/2025/nr/d5nr00284b 1 877ca90f-fab1-11f0-a1ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=226196 Fakulteta za matematiko in fiziko 0 0 0