Results 21 to 30 of about 713,946 (150)

Singular systematic phases, transparencies, and invisibilities produced by parity-time-symmetric Thue–Morse optical waveguide networks

Results in Physics, 2021
To study the effect of structural symmetry on both the quantity and quality of singular optical properties, a one-dimensional parity-time-symmetric (PT-symmetric) Thue–Morse (TM) optical-waveguide networks family is built and investigated.
Yao Zhang, Xiangbo Yang, Fen Tang, Xiaomin Wang, Dongmei Deng, Hongzhan Liu, Zhongchao Wei   +6 more
doaj   +1 more source

Progress in organic solar cells: Materials, challenges, and novel strategies for niche applications

APL Energy
Organic solar cells (OSCs) are emerging as a viable alternative, and complementary niche of applications, to the conventional silicon-based photovoltaics due to their unique attributes, including flexibility, lightweight, semitransparency, and ease of ...
Julio C. Carrillo-Sendejas, José-Luis Maldonado   +1 more
doaj   +1 more source

AOPs Are Not Additive: On the Biogeo-Optical Modeling of the Diffuse Attenuation Coefficient

Frontiers in Marine Science, 2018
Commonly we see the diffuse attenuation coefficient of downwelling irradiance (Kd) expressed as a sum of the contributions of various constituents. We show here that, both theoretically and numerically, because Kd is an apparent optical property (AOP ...
Zhongping Lee, Shaoling Shang, Robert Stavn   +2 more
doaj   +1 more source

Silica Encapsulation of Hydrophobic Optical NP-Embedded Silica Particles with Trimethoxy(2-Phenylethyl)silane

Nanomaterials, 2023
Nanoparticles (NP) with optical properties embedded silica particles have been widely used in various fields because of their unique properties. The surfaces of optical NPs have been modified with various organic ligands to maintain their unique optical ...
Eunil Hahm, Ahla Jo, Eunji Kang, Kwanghee Yoo, Minsup Shin, Jaehyun An, Xuanhung Pham, Hyungmo Kim, Homan Kang, Jaehi Kim, Bonghyun Jun   +10 more
doaj   +1 more source

Optical properties of liquid crystals [PDF]

Biuletyn Wojskowej Akademii Technicznej
The paper presents the basic optical properties of liquid crystals. It focuses in particular on nematic and cholesteric liquidcrystals, which exhibit particularly interesting and practical optical properties.
Stanisław Kłosowicz, Zbigniew Raszewski, Jerzy Zieliński   +2 more
doaj   +1 more source

Investigations on Cmc2_1-Si_2P_2X structures and physical properties by first-principles calculations

Condensed Matter Physics, 2021
The new structures, Cmc2_1 – Si_2P_2X (X=S, Se, Te, and Po), are predicted, and their mechanical, electronic and optical properties are investigated with the density functional theory, by first principles calculations. The elastic constants of the four
R. Yang, X. Gao, F. Wu, Q. Wei, M. Xue
doaj   +1 more source

Chemically Reactive Thin Films: Dynamics and Stability

Advanced Materials Interfaces
Catalyst particles or complexes suspended in liquid films can trigger chemical reactions leading to inhomogeneous concentrations of reactants and products in the film.
Tilman Richter, Paolo Malgaretti, Thomas M. Koller, Jens Harting   +3 more
doaj   +1 more source

Optical properties of mesoporous photonic crystals, filled with dielectrics, ferroelectrics and piezoelectrics [PDF]

Journal of Advanced Dielectrics, 2017
At present, it is very important to create new types of mirrors, nonlinear light frequency transformers and optical filters with controlled optical properties. In this connection, it is of great interest to study photonic crystals.
V. S. Gorelik, Dongxue Bi, Guang Tao Fei
doaj   +1 more source

Effect of temperature on the crystallite size of Lanthanum Cerium Oxide (La2Ce2O7) and its optical properties [PDF]

Carbon: Science and Technology, 2013
The effect of the calcination process on the crystallite size and optical properties of Lanthanum Cerium Oxide (La2Ce2O7) nanopowders synthesized using co-precipitation process were reported.
Hozefa Tinwala, D. C. Shah , Jyoti Menghani   +2 more
doaj  

Calcined Solution-Based PVP Influence on ZnO Semiconductor Nanoparticle Properties

Crystals, 2017
A water-based solution of polyvinylpyrrolidone (PVP) at various concentrations and zinc nitrates were used in conjunction with calcination to produce zinc oxide semiconductor nanoparticles.
Halimah Mohamed Kamari, Naif Mohammed Al-Hada, Elias Saion, Abdul Halim Shaari, Zainal Abidin Talib, Moayad Husein Flaifel, Abdullah Ahmed Ali Ahmed   +6 more
doaj   +1 more source