Photo-engineered optoelectronic properties of indium tin oxide via reactive laser annealing

HILLIER, James Arthur, PATSALAS, Panos, KARFARIDIS, Dimitrios, CAMELIO, Sophie, CRANTON, Wayne, NABOK, Alexei V., MELLOR, Christopher J., KOUTSOGEORGIS, Demosthenes C. and KALFAGIANNIS, Nikolaos (2022). Photo-engineered optoelectronic properties of indium tin oxide via reactive laser annealing. Scientific Reports, 12 (1): 14986.

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    Abstract: Transparent conductive oxides are appealing materials for optoelectronic and plasmonic applications as, amongst other advantages, their properties can be modulated by engineering their defects. Optimisation of this adjustment is, however, a complex design problem. This work examined the modification of the carrier transport properties of sputtered tin-doped indium oxide (ITO) via laser annealing in reactive environments. We relate the optical modifications to the structural, compositional, and electronic properties to elucidate the precise mechanisms behind the reactive laser annealing (ReLA) process. For sufficiently high laser fluence, we reveal an ambient-dependent and purely compositional modulation of the carrier concentration of ITO thin films. Hereby, we demonstrate that ReLA utilises the precise energy delivery of photonic processing to enhance the carrier mobility and finely tune the carrier concentration without significantly affecting the crystal structure. Exploitation of this phenomena may enable one to selectively engineer the optoelectronic properties of ITO, promising an alternative to the exploration of new materials for optoelectronic and photonic applications.

    Item Type: Article
    Additional Information: ** From Springer Nature via Jisc Publications Router ** Licence for this article: **Journal IDs: eissn 2045-2322 **Article IDs: publisher-id: s41598-022-18883-5; manuscript: 18883 **History: collection 12-2022; online 02-09-2022; published 02-09-2022; accepted 22-08-2022; registration 22-08-2022; submitted 13-06-2022
    Uncontrolled Keywords: Article, /639/301, /639/925, /639/624, article
    Identification Number:
    SWORD Depositor: Colin Knott
    Depositing User: Colin Knott
    Date Deposited: 05 Sep 2022 14:59
    Last Modified: 05 Sep 2022 14:59

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