Growth Behavior of Atomic-Layer-Deposited Pb(Zr,Ti)O[sub x] Thin Films on Planar Substrate and Three-Dimensional Hole Structures

2008 ◽  
Vol 155 (11) ◽  
pp. D715 ◽  
Author(s):  
Takayuki Watanabe ◽  
Susanne Hoffmann-Eifert ◽  
Cheol Seong Hwang ◽  
Rainer Waser
2010 ◽  
Vol 114 (29) ◽  
pp. 12736-12741 ◽  
Author(s):  
Hyun Ju Lee ◽  
Min Hyuk Park ◽  
Yo-Sep Min ◽  
Guylhaine Clavel ◽  
Nicola Pinna ◽  
...  

Crystals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 650
Author(s):  
Aile Tamm ◽  
Aivar Tarre ◽  
Valeriy Verchenko ◽  
Helina Seemen ◽  
Raivo Stern

In previous decades, investigation of superconductors was aimed either at finding materials with higher critical temperatures or at discovering nontypical superconducting behavior. Here, we present the cupric (CuO) thin films, which were synthesized by atomic layer deposition by using a metal-organic precursor, copper (II)-bis-(-dimethylamino-2-propoxide), and ozone as an oxidizer. The deposition process was optimized by employing a quartz crystal monitoring, and the contact between the deposited films and planar and three-dimensional SiO2/Si substrates was examined by scanning electron microscopy with a focused ion beam module. Phase and elemental composition were analyzed by X-ray diffraction and X-ray fluorescence. Two-probe electrical resistivity measurements revealed a resistivity drop below the critical temperature of 4 K, which may indicate low-temperature superconductivity of the CuO thin films.


2014 ◽  
Vol 5 ◽  
pp. 1104-1136 ◽  
Author(s):  
Pia Sundberg ◽  
Maarit Karppinen

The possibility to deposit purely organic and hybrid inorganic–organic materials in a way parallel to the state-of-the-art gas-phase deposition method of inorganic thin films, i.e., atomic layer deposition (ALD), is currently experiencing a strongly growing interest. Like ALD in case of the inorganics, the emerging molecular layer deposition (MLD) technique for organic constituents can be employed to fabricate high-quality thin films and coatings with thickness and composition control on the molecular scale, even on complex three-dimensional structures. Moreover, by combining the two techniques, ALD and MLD, fundamentally new types of inorganic–organic hybrid materials can be produced. In this review article, we first describe the basic concepts regarding the MLD and ALD/MLD processes, followed by a comprehensive review of the various precursors and precursor pairs so far employed in these processes. Finally, we discuss the first proof-of-concept experiments in which the newly developed MLD and ALD/MLD processes are exploited to fabricate novel multilayer and nanostructure architectures by combining different inorganic, organic and hybrid material layers into on-demand designed mixtures, superlattices and nanolaminates, and employing new innovative nanotemplates or post-deposition treatments to, e.g., selectively decompose parts of the structure. Such layer-engineered and/or nanostructured hybrid materials with exciting combinations of functional properties hold great promise for high-end technological applications.


2019 ◽  
Vol 11 (19) ◽  
pp. 17321-17332 ◽  
Author(s):  
Rahul Ramesh ◽  
Dip K. Nandi ◽  
Tae Hyun Kim ◽  
Taehoon Cheon ◽  
Jihun Oh ◽  
...  

2019 ◽  
Vol 123 (36) ◽  
pp. 22539-22549 ◽  
Author(s):  
Cheol Hyun An ◽  
Woojin Jeon ◽  
Sang Hyeon Kim ◽  
Cheol Jin Cho ◽  
Dae Seon Kwon ◽  
...  

2012 ◽  
Vol 1409 ◽  
Author(s):  
Daniel Schmidt ◽  
Eva Schubert ◽  
Mathias Schubert

ABSTRACTAging effects of as-deposited and passivated slanted columnar thin films from cobalt determined by generalized ellipsometry within the visible spectral region are reported. Slanted columnar thin films have been grown by glancing angle electron beam deposition and sub-sequently coated with Al2O3 by an atomic layer deposition process. An anisotropic Bruggeman effective medium approximation developed for highly ordered three dimensional metal nanostructures is employed to analyze spectroscopic Mueller matrix ellipsometry data. Our model approach allows for determination of biaxial optical and structural properties as well as fractions of multiple film constituents. While the optical properties of the uncoated film change over time, the alumina passivation layer prevents oxidation in air and therefore aging effects; however, it affects the intrinsic bulk-like Co optical properties.


2012 ◽  
Vol 1408 ◽  
Author(s):  
Daniel Schmidt ◽  
Chad Briley ◽  
Eva Schubert ◽  
Mathias Schubert

ABSTRACTVector magneto-optical generalized ellipsometry on passivated ferromagnetic permalloy slanted columnar thin films is reported. The nanostructured thin film was grown by electron-beam glancing angle deposition and subsequently coated with a thin Al2O3 layer by atomic layer deposition. Magneto-optical generalized ellipsometry data have been acquired while an external magnetic field H with constant amplitude was rotated with respect to the sample (spatial hysteresis loops). The magneto-optical coupling parameters, which are proportional to the sample magnetization M, reveal intriguing anisotropic magnetic behavior of the slanted columnar thin film. Three-dimensional graphs of the magneto-optical coupling parameters with respect to spatial hysteresis loops shown here are representative for the sample magnetization.


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