Luminescent Nd2S3 thin films: A new chemical vapour deposition route towards rare-earth sulphides
Publikation: Beitrag in Fachzeitschrift › Forschungsartikel › Beigetragen › Begutachtung
Beitragende
Abstract
Neodymium sulphide (Nd 2 S 3 ) belongs to the exciting class of rare earth sulphides (RES) and is projected to have a serious potential in a wide spectrum of application either in pure form or as dopant. We demonstrate a facile and first growth of Nd 2 S 3 thin films via metal-organic chemical vapour deposition (MOCVD) at moderate process conditions using two new Nd precursors, namely tris(N,N′-diisopropyl-2-dimethylamido-guanidinato)Nd(iii) and tris(N,N′-diisopropyl-acetamidinato)Nd(iii). The promising thermal properties and suitable reactivity of both Nd precursors towards elemental sulphur enabled the formation of high purity γ-Nd 2 S 3 . While the process temperature for film growth ranged from 400 °C to 600 °C, the films were crystalline above 500 °C. We also demonstrate that the as-deposited γ-Nd 2 S 3 are luminescent, with the optical bandgap ranging from 2.3 eV to 2.5 eV. The process circumvents post-deposition treatments such as sulfurisation to fabricate the desired Nd 2 S 3 , which paves the way for large scale synthesis and also opens up new avenues for exploring the potential of this class of materials with properties for functional applications.
Details
Originalsprache | Englisch |
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Seiten (von - bis) | 2926-2938 |
Seitenumfang | 13 |
Fachzeitschrift | Dalton transactions |
Jahrgang | 48 |
Ausgabenummer | 9 |
Publikationsstatus | Veröffentlicht - 2019 |
Peer-Review-Status | Ja |
Extern publiziert | Ja |
Externe IDs
PubMed | 30542684 |
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