Metal Ion Diusion in Thin Film Chalcogenides
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Ohio University / OhioLINK
2016
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ndltd-OhioLink-oai-etd.ohiolink.edu-ohiou14670758042021-08-03T06:37:06Z Metal Ion Diusion in Thin Film Chalcogenides Zella, Leo W. Physics chalcogenide amorphous photodiffusion The field of amorphous chalcogenides has been quite exciting since the uncovering of some of their unique features such as superionic properties, phase change property and unique photodiffusion phenomena, that have brought them into many areas of fundamental research and applications in industry. Our research group has examined several chalcogenide systems for their properties as solid electrolyte materials and unique diffusion properties regarding Ag.The focus of the presented work is to charecterize the diffusion properties of metal ions in GeSe2 and Sb2Te3 solid electrolytes. For Sb2Te3 we are interested in determining the effect of a top metal layer on reducing oxygen diffusion. It is known from Mitkova that oxygen has a major impact on the photodiffusion ability of chalcogenides. Our samples are tri-layer metal/chalcogenide/metal samples that are measured before and after annealing in atmosphere. For these tri-layer systems we tested two different passivating metals, Pt and Au. Our results show that they fail to work as passivating layers due to diffusion during heating. Our second approach was to study Ag diffusion in amorphous GeSe2 thin films. This system is studied by inducing diffusion via several mechanisms, including alpha beam and thermally induced diffusion. Understanding Ag diffusion into the electrolyte layer will provide insight into the mechanism of Ag filament formation in resistive memory devices. We show that the diffusion of Ag by alpha beam and by heating produces a different end profile and amount of intermixing. 2016-09-30 English text Ohio University / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1467075804 http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1467075804 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws. |
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NDLTD |
| language |
English |
| sources |
NDLTD |
| topic |
Physics chalcogenide amorphous photodiffusion |
| spellingShingle |
Physics chalcogenide amorphous photodiffusion Zella, Leo W. Metal Ion Diusion in Thin Film Chalcogenides |
| author |
Zella, Leo W. |
| author_facet |
Zella, Leo W. |
| author_sort |
Zella, Leo W. |
| title |
Metal Ion Diusion in Thin Film Chalcogenides |
| title_short |
Metal Ion Diusion in Thin Film Chalcogenides |
| title_full |
Metal Ion Diusion in Thin Film Chalcogenides |
| title_fullStr |
Metal Ion Diusion in Thin Film Chalcogenides |
| title_full_unstemmed |
Metal Ion Diusion in Thin Film Chalcogenides |
| title_sort |
metal ion diusion in thin film chalcogenides |
| publisher |
Ohio University / OhioLINK |
| publishDate |
2016 |
| url |
http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1467075804 |
| work_keys_str_mv |
AT zellaleow metaliondiusioninthinfilmchalcogenides |
| _version_ |
1719440205522403328 |