Szczegóły publikacji
Opis bibliograficzny
Correlating structural properties with catalytic stability in nanocrystalline $La(Sr)CoO_3$ thin films grown by Pulsed Electron Deposition (PED) / Łukasz CIENIEK, Dominik GROCHALA, Tomasz MOSKALEWICZ, Agnieszka KOPIA, Kazimierz KOWALSKI // Materials [Dokument elektroniczny]. — Czasopismo elektroniczne ; ISSN 1996-1944. — 2025 — vol. 18 iss. 19 art. no. 4550, s. 1–26. — Wymagania systemowe: Adobe Reader. — Bibliogr. s. 25–26, Abstr. — Publikacja dostępna online od: 2025-09-30
Autorzy (5)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 163483 |
|---|---|
| Data dodania do BaDAP | 2025-10-17 |
| Tekst źródłowy | URL |
| DOI | 10.3390/ma18194550 |
| Rok publikacji | 2025 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Materials |
Abstract
This study investigates the structural, morphological, and gas-sensing properties of pure and strontium-doped lanthanum cobaltite (La1−xSrxCoO3) perovskite thin films obtained by Pulsed Electron Deposition (PED). This sustainable ablative technique successfully produced high-quality, dense, nanocrystalline films on Si and MgO substrates, demonstrating excellent stoichiometric transfer from the source targets. A comprehensive analysis using XRD, SEM, TEM, AFM, and XPS was conducted to characterize the films. The results show that Sr-doping significantly refines the microstructure, leading to smaller crystallites and a more uniform surface topography. Gas sensing measurements, performed in a temperature range of 100–450 °C, revealed that all films exhibit a characteristic p-type semiconductor response to nitrogen dioxide (NO2). The La0.8Sr0.2CoO3 composition, in particular, demonstrated the most promising performance, with enhanced sensitivity and excellent operational stability at temperatures up to 350 °C. These findings validate that PED is a reliable and precise method for fabricating complex oxide films and confirm that Sr-doped LaCoO3 is a highly promising material for developing high-temperature NO2 gas sensors.
