scholarly journals New Trends in Lithium Niobate: From Bulk to Nanocrystals

Crystals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1356
Author(s):  
László Kovács ◽  
Gábor Corradi
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Lithium Niobate ◽  
Single Crystals ◽  
Basic Research ◽  
Mixed Crystals ◽  
Special Issue ◽  
Extrinsic Defects

The recent Special Issue on lithium niobate (LiNbO3) is dedicated to Prof. Schirmer and his topics and contains nineteen papers, out of which seven review various aspects of intrinsic and extrinsic defects in single crystals, thin films, and powdered phases; six present brand-new results of basic research, including two papers on Li(Nb,Ta)O3 mixed crystals; and the remaining six are related to various optical and/or thin film applications.

Phenethylammonium bismuth halides: from single crystals to bulky-organic cation promoted thin-film deposition for potential optoelectronic applications

2019 ◽  
Vol 7 (36) ◽  
pp. 20733-20741 ◽  
Author(s):  
Mehri Ghasemi ◽  
Miaoqiang Lyu ◽  
Md Roknuzzaman ◽  
Jung-Ho Yun ◽  
Mengmeng Hao ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Surface Roughness ◽  
Single Crystals ◽  
Organic Cation ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Optoelectronic Applications ◽  
Excellent Stability

The phenethylammonium cation significantly promotes the formation of fully-covered thin-films of hybrid bismuth organohalides with low surface roughness and excellent stability.

scholarly journals The thin film bulk acoustic wave resonator based on single-crystalline 43○Y-cut lithium niobate thin films

AIP Advances ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 075002
Author(s):  
Xiaoyuan Bai ◽  
Yao Shuai ◽  
Lu Lv ◽  
Ying Xing ◽  
Jiaoling Zhao ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Lithium Niobate ◽  
Acoustic Wave ◽  
Bulk Acoustic Wave ◽  
Single Crystalline ◽  
Bulk Acoustic Wave Resonator ◽  
Wave Resonator ◽  
Film Bulk

Acoustic Phase Velocity Measurements along General Directions in Non-Isotropic Crystals. II. Layer Modes for Thin Films

1971 ◽  
Vol 49 (12) ◽  
pp. 1606-1610 ◽  
Author(s):  
S. L. McBride ◽  
G. W. Farnell
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Lithium Niobate ◽  
Phase Velocity ◽  
Test Specimen ◽  
Gold Films ◽  
Velocity Measurements ◽  
Elastic Surface ◽  
Film Substrate ◽  
Acoustic Phase

The usefulness of the immersion–reflection technique for the measurement of the angular dependence of the dispersion curves for elastic surface waves in anisotropic thin-film, substrate combinations is demonstrated. The example chosen consists of gold films on a substrate of Y-cut lithium niobate, the latter being both highly anisotropic and piezoelectric. The velocity accuracy of the measurements is about ±0.3% and the frequency of operation is limited by the attenuation in the liquid medium in which the test specimen is immersed.

scholarly journals Special Issue: Current Research in Thin Film Deposition: Applications, Theory, Processing, and Characterisation

Coatings ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1228
Author(s):  
Ross Birney
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Special Issue ◽  
Wide Range

Today, thin films are near-ubiquitous and are utilised in a very wide range of industrially and scientifically important areas [...]

Electron Microscopy of Thin Film Immiscible-Miscible Systems

1971 ◽  
Vol 29 ◽  
pp. 218-219
Author(s):  
K. P. Staudhammer ◽  
L. E. Murr
Keyword(s):  
Thin Film ◽  
Electron Microscopy ◽  
Thin Films ◽  
Single Crystals ◽  
Thermal Activation ◽  
Comparative Investigation ◽  
Equilibrium Behavior ◽  
Ambient Temperatures ◽  
The Matrix

Some preliminary studies on immiscible systems have been previously reported. This paper is a continuation of this work in an effort to expand the characterization of immiscible systems. The non-equilibrium behavior of many thin film materials compared to that of the bulk is fairly well established. The work discussed in the present paper is a comparative investigation of immiscible systems such as Ni-Ag to that of a simple eutectic, Ag-Si. Earlier work on immiscible systems has shown that upon thermal activation, one of the components exsolves out of the matrix and grows as single crystals upon the thin film matrix. Further investigation revealed this to be characteristic of a number of immiscible systems; however, a few anomalies have been found.Thin films were prepared by the co-evaporation of the components from separate sources at ambient temperatures onto freshly-cleaved (100) NaCl substrates. The co-evaporated films (300-400 Å thick) were deposited at a nominal background pressure (prior to deposition) of 4 X 10-5 torr.

scholarly journals Lithium Niobate Single Crystals and Powders Reviewed—Part II

Crystals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 990
Author(s):  
Oswaldo Sánchez-Dena ◽  
Sergio David Villalobos-Mendoza ◽  
Rurik Farías ◽  
Cesar David Fierro-Ruiz
Keyword(s):  
Lithium Niobate ◽  
Single Crystals ◽  
Recent Literature ◽  
Ferromagnetic Behavior ◽  
Magnetic Oxides ◽  
Extrinsic Defects

A review on lithium niobate single crystals and polycrystals has been prepared. Both the classical and recent literature on this topic is revisited. It is composed of two parts with several sections. The current part discusses the available defect models (intrinsic), the trends found in ion-doped crystals and polycrystals (extrinsic defects), the fundamentals on dilute magnetic oxides, and their connection to ferromagnetic behavior in lithium niobate.

Theoretical and Experimental Characterization for the Inelastic Behavior of the Micro-/Nanostructured Thin Films Using Strain Gradient Plasticity With Interface Energy

2009 ◽  
Vol 131 (4) ◽  
Author(s):  
George Z. Voyiadjis ◽  
Babur Deliktas
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Chemical Properties ◽  
Basic Research ◽  
Interface Energy ◽  
Model Systems ◽  
Film Material ◽  
Inelastic Behavior ◽  
Nanostructured Thin Films ◽  
Research Activities

Thin film technology is pervasive in many applications, including microelectronics, optics, magnetic, hard and corrosion resistant coatings, micromechanics, etc. Therefore, basic research activities will be necessary in the future to increase knowledge and understanding and to develop predictive capabilities for relating fundamental physical and chemical properties to the microstructure and performance of thin films in various applications. In basic research, special model systems are needed for quantitative investigation of the relevant and fundamental processes in thin film material science. Because of the diversity of the subject and the sheer volume of the publications, a complete a review of the area of the current study is focused particularly on the experimental and theoretical investigations for the inelastic behavior of the micro-/nanostructured thin films.

Ion Beam Slicing of Single Crystal Oxide Thin Films

2000 ◽  
Vol 647 ◽  
Author(s):  
S. Thevuthasan ◽  
V. Shutthanandan ◽  
W. Jiang ◽  
W. J. Weber
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Single Crystals ◽  
Annealing Temperature ◽  
Rutherford Backscattering Spectrometry ◽  
Ion Beam ◽  
Hydrogen Ions ◽  
Epitaxial Thin Film ◽  
Slicing Method

AbstractEpitaxial thin film liftoff using the ion-slicing method has been applied to SrTiO3 single crystals. Rutherford backscattering spectrometry along with channeling (RBS/C) has been used to investigate the relative disorder as a function of temperature from the samples that were irradiated by 40 KeV hydrogen ions to a fluence of 5.0×1016 H+/cm2. Hydrogen profiles were also measured as a function of annealing temperature to understand the role of hydrogen in the ion slicing process. Film cleavage occurred during or after annealing at 570 K, and cleaved film has been successfully transferred to a silicon substrate using ceramic adhesive.

scholarly journals Editorial for the Special Issue on “10th Anniversary of Nanomaterials—Recent Advances in Nanocomposite Thin Films and 2D Materials”

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2069
Author(s):  
Jordi Sort ◽  
Gemma Rius
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
2D Materials ◽  
Wide Spectrum ◽  
Nanocomposite Thin Film ◽  
Special Issue ◽  
10Th Anniversary ◽  
Research Challenges ◽  
Nanocomposite Thin Films ◽  
Original Works

As a way to celebrate the 10th anniversary of the journal Nanomaterials, this Special Issue within the section ‘Nanocomposite thin film and 2D materials’ provides an overview of the wide spectrum of research challenges and applications in the field, represented by a collection of 12 contributions, including three up-to-date review articles plus nine original works, in different targeted topics as described below [...]

scholarly journals Halide Perovskite Single Crystals: Optoelectronic Applications and Strategical Approaches

Energies ◽  
2020 ◽  
Vol 13 (16) ◽  
pp. 4250 ◽  
Author(s):  
Yurou Zhang ◽  
Miaoqiang Lyu ◽  
Tengfei Qiu ◽  
Ekyu Han ◽  
Il Ku Kim ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Solar Cells ◽  
Single Crystals ◽  
Defect Density ◽  
Synthesis Methods ◽  
Polycrystalline Thin Film ◽  
Single Crystalline ◽  
Halide Perovskite ◽  
Optoelectronic Applications

Halide perovskite is one of the most promising semiconducting materials in a variety of fields such as solar cells, photodetectors, and light-emitting diodes. Lead halide perovskite single crystals featuring long diffusion length, high carrier mobility, large light absorption coefficient and low defect density, have been attracting increasing attention. Fundamental study of the intrinsic nature keeps revealing the superior optoelectrical properties of perovskite single crystals over their polycrystalline thin film counterparts, but to date, the device performance lags behind. The best power conversion efficiency (PCE) of single crystal-based solar cells is 21.9%, falling behind that of polycrystalline thin film solar cells (25.2%). The oversized thickness, defective surfaces, and difficulties in depositing functional layers, hinder the application of halide perovskite single crystals in optoelectronic devices. Efforts have been made to synthesize large-area single crystalline thin films directly on conductive substrates and apply defect engineering approaches to improve the surface properties. This review starts from a comprehensive introduction of the optoelectrical properties of perovskite single crystals. Then, the synthesis methods for high-quality bulk crystals and single-crystalline thin films are introduced and compared, followed by a systematic review of their optoelectronic applications including solar cells, photodetectors, and X-ray detectors. The challenges and strategical approaches for high-performance applications are summarized at the end with a brief outlook on future work.

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