نتایج جستجو برای: defect layer

تعداد نتایج: 373858  

Journal: :Nano letters 2017
Ravini U Chandrasena Weibing Yang Qingyu Lei Mario U Delgado-Jaime Kanishka D Wijesekara Maryam Golalikhani Bruce A Davidson Elke Arenholz Keisuke Kobayashi Masaaki Kobata Frank M F de Groot Ulrich Aschauer Nicola A Spaldin Xiaoxing Xi Alexander X Gray

We demonstrate a novel pathway to control and stabilize oxygen vacancies in complex transition-metal oxide thin films. Using atomic layer-by-layer pulsed laser deposition (PLD) from two separate targets, we synthesize high-quality single-crystalline CaMnO3 films with systematically varying oxygen vacancy defect formation energies as controlled by coherent tensile strain. The systematic increase...

Journal: :Optics express 2012
James H Andrews Michael Crescimanno Nathan J Dawson Guilin Mao Joshua B Petrus Kenneth D Singer Eric Baer Hyunmin Song

We report on improved gain and spectral control in co-extruded all-polymer multilayer distributed feedback (DFB) lasers achieved by folding and deliberate modification of the center "defect" layer. Because DFB laser gain is greater at spectral defects inside the reflection band than at the band edges, manipulation of structural defects can be used to alter spectral defects and thereby tune the ...

2011
László Dózsa György Molnár Vito Raineri Filippo Giannazzo János Ferencz Štefan Lányi

Self-assembled iron-silicide nanostructures were prepared by reactive deposition epitaxy of Fe onto silicon. Capacitance-voltage, current-voltage, and deep level transient spectroscopy (DLTS) were used to measure the electrical properties of Au/silicon Schottky junctions. Spreading resistance and scanning probe capacitance microscopy (SCM) were applied to measure local electrical properties. Us...

2014
Rami Reddy Devarapalli Joyashish Debgupta Vijayamohanan K. Pillai Manjusha V. Shelke

One-dimensional heterostructure nanoarrays are efficiently promising as high performance electrodes for photo electrochemical (PEC) water splitting applications, wherein it is highly desirable for the electrode to have a broad light absorption, efficient charge separation and redox properties as well as defect free surface with high area suitable for fast interfacial charge transfer. We present...

2011
In Seok Song Joong Won Shin Yong Woon Shin Ki Bang Uhm

A 59-year-old woman was referred to our clinic for a glaucoma evaluation. The visual acuity and intraocular pressure were normal in both eyes. However, red-free fundus photography in the left eye showed a superotemporal wedge-shaped retinal nerve fiber layer defect, and visual field testing showed a corresponding partial arcuate scotoma. In an optical coherence tomography examination, the macul...

2015
Norifumi Tsubokawa Yoshihiro Miyata Takahiro Mimae Shinsuke Sasada Tomoharu Yoshiya Masaoki Ito Yasuhiro Tsutani Takeshi Mimura Morihito Okada

Results A total of 20 TachoSil were applied to pleural defects. All animals survived thorough the observational period. No pneumothorax was found and two adhesions (10%) were observed on the pleura covered by TachoSil at the time of sacrifice. Tachosil was macroscopically detectable until POD 28 and only macroscopically detectable on POD 56. Histologically, inflammatory cells infiltrated the Ta...

Journal: :Corrosion Science 2022

A mixed potential model (MPM) comprising the Point Defect Model (PDM) and Generalized Butler Volmer Equation (GBVE) was successfully developed to study passivity of HDSS 2707. The results show that dominant point defect within passive film is Min+, thereby rendering n-type semiconductor behavior barrier layer. anodic current independent formation whereas it increases with increasing temperature...

2016
Yang Zhou Tiebing Liu Yang Shi Zhengwei Chen Jianwei Mao Wujie Zhou

Optical coherence tomography (OCT) has been applied to inspect the internal defect of beadless Chinese ZhuJi fleshwater pearls. A novel fully automated algorithm is proposed to classify between normal and defective sub-layer in nacre layer. Our algorithm utilizes the graph segmentation approach to estimate the up and down boundaries of defect sub-layers from flattened and cropped image, and als...

2015
Yuzheng Guo John Robertson

The atomic geometries and transition levels of point defects and substitutional dopants in few-layer and bulk black phosphorus are calculated. The vacancy is found to reconstruct in monolayer P to leave a single dangling bond, giving a negative U defect with a +/- transition level at 0.24 eV above the valence band edge. The V(-) state forms an unusual 4-fold coordinated site. In few-layer and b...

2010
C. McGuinness E. Colby B. Cowan R. J. England J. Ng R. J. Noble E. Peralta K. Soong J. Spencer D. Walz R. L. Byer

Eight and nine layer three dimensional photonic crystals with a defect designed specifically for accelerator applications have been fabricated. The structures were fabricated using a combination of nanofabrication techniques, including low pressure chemical vapor deposition, optical lithography, and chemical mechanical polishing. Limits imposed by the optical lithography set the minimum feature...

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