The properties of pulsed laser deposited YH2 films for switchable devices

In-situ deposited YH2 films ranging from epitaxial to nanocrystalline were prepared by pulsed laser deposition (PLD). PLD has the advantage that the yttrium target acts as a hydrogen source. Comparing the switching behavior to that of MBE-grown, ex-situ loaded films, the PLD-films show a reduced opt...

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Veröffentlicht in:	Journal of alloys and compounds 2003-08, Vol.356-357, p.536-540
Hauptverfasser:	Lokhorst, A.C., Heijna, M.C.R., Rector, J.H., Giebels, I.A.M.E., Koeman, N.J, Dam, B.
Format:	Artikel
Sprache:	eng
Schlagworte:	Light absorption and reflection Thin films Vapour deposition
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container_end_page	540
container_issue
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container_title	Journal of alloys and compounds
container_volume	356-357
creator	Lokhorst, A.C. Heijna, M.C.R. Rector, J.H. Giebels, I.A.M.E. Koeman, N.J Dam, B.
description	In-situ deposited YH2 films ranging from epitaxial to nanocrystalline were prepared by pulsed laser deposition (PLD). PLD has the advantage that the yttrium target acts as a hydrogen source. Comparing the switching behavior to that of MBE-grown, ex-situ loaded films, the PLD-films show a reduced optical and electrical contrast in switching, which is probably due to the formation of Y(OH)3. On the other hand, we found that in the nanocrystalline PLD-films the hysteresis in switching is absent. Moreover, these films have a smoother surface morphology. Both effects are important for the implementation of switchable rare earth hydride films in all-solid-state devices.
doi_str_mv	10.1016/S0925-8388(03)00118-X
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PLD has the advantage that the yttrium target acts as a hydrogen source. Comparing the switching behavior to that of MBE-grown, ex-situ loaded films, the PLD-films show a reduced optical and electrical contrast in switching, which is probably due to the formation of Y(OH)3. On the other hand, we found that in the nanocrystalline PLD-films the hysteresis in switching is absent. Moreover, these films have a smoother surface morphology. 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subjects	Light absorption and reflection Thin films Vapour deposition
title	The properties of pulsed laser deposited YH2 films for switchable devices
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