Effect of Mg(OH)2 on YBa2Cu3O7 thin film on MgO substrate studied by atomic force microscope

Kim, Byung-Il; Hong, Jae Won; Jeong, Gawoon; Moon, Sang Heup; Lee, D. H.; Shim, Taeyoung; Khim, Z. G.

doi:10.1116/1.587248

Cited by 19 publications

(1 citation statement)

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“…MgO single crystal substrates are also frequently used in epitaxial thin film growth [8,9]. Hence degradation of single crystal MgO by moisture related with storage conditions effects structural quality of thin films and devices made on MgO substrates for various microelectronic applications [10,11]. Delplancke-Ogletree et al studied the effect of annealing and exposure time on brucite growth on (1 0 0) single crystals [12].…”

Section: Introductionmentioning

confidence: 99%

Influence of crystallographic orientation on hydration of MgO single crystals

Sütçü¹,

Akkurt²,

Okur³

2009

Ceramics International

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This study has been performed in order to find out the influence of crystallographic orientation on hydration of MgO single crystal substrates with (1 0 0)-, (1 1 0)-, and (1 1 1)-orientations. The samples were left in a hydration chamber with an 88% relative humidity for 18 h at room temperature. The effect of humidity on the samples was examined by scanning probe microscope (SPM) and scanning electron microscope (SEM) which showed that the degree of hydration was noticeably influenced by the crystallographic orientation. It was found that the MgO with (1 1 1)-orientation has the highest tendency to hydrate than the other orientations. Second most affected sample was (1 1 0) crystal. Loss of MgO on the surface by hydration is most severe when the crystal is oriented in (1 1 1) plane with the maximum hydrate layer thickness of 174 nm after 18 h of exposure. #

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Section: Introductionmentioning

confidence: 99%

Influence of crystallographic orientation on hydration of MgO single crystals

Sütçü¹,

Akkurt²,

Okur³

2009

Ceramics International

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Morphology, surface topography and optical studies on electron beam evaporated MgO thin films

Chowdhury

Kumar

2006

Bull Mater Sci

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Electron beam evaporated thin films of MgO powder synthesized by burning of magnesium ribbon in air and sol-gel technique are studied for their microstructure (SEM), surface topography (AFM), and optical transmission behaviour (UV-visible spectroscopy). MgO thin films are shown to be either continuous or have mesh like morphology. The bar regions are believed to be of magnesium hydroxide formed due to absorption of moisture. Their AFM images exhibit columnar/pyramidal/truncated cone structure, providing support to the 3D Stranski-Krastanov model for film growth. Further, they are shown to have high transmittance (~90%) in the wavelength range 400-600 nm, but absorb radiation below 350 nm substantially giving signature of a band transition.

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