Results 41 to 50 of about 55,978 (270)

Stable dielectric response of low-loss aromatic polythiourea thin films on Pt/SiO2 substrate [PDF]

Journal of Advanced Dielectrics, 2016
We have investigated dielectric properties of aromatic polythiourea (ArPTU, a polar polymer containing high dipolar moments with very low defect levels) thin films that were developed on Pt/SiO2 substrate.
A. Eršte, L. Fulanović, L. Čoga, M. Lin, Y. Thakur, Q. M. Zhang, V. Bobnar   +6 more
doaj   +1 more source

Ellipsometry noise spectrum, suspension transfer function measurement and closed-loop control of the suspension system in the Q & A experiment

, 2005
The Q & A experiment, aiming at the detection of vacuum birefringence predicted by quantum electrodynamics, consists mainly of a suspended 3.5 m Fabry-Perot cavity, a rotating permanent dipole magnet and an ellipsometer. The 2.3 T magnet can rotate up to
Anselm A A, Cantatore G, Cantatore G, Chen S-J, Chen S-J, Euler E, Heinzel G, Hsien-Hao Mei, Jacob D, Mei H-H, Morrison E, Nezrick F, Ni W-T, Ni W-T, Ni W-T, Pengo R, Rizzo C, Sheng-Jui Chen, Wei-Tou Ni, Wu J-S   +19 more
core   +1 more source

Optical conductivity and superconductivity in LaSb$_2$ [PDF]

, 2010
We have measured the resistivity, optical conductivity, and magnetic susceptibility of LaSb$_2$ to search for clues as to the cause of the extraordinarily large linear magnetoresistance and to explore the properties of the superconducting state.
Acatrinei A I, D P Young, D van der Marel, J F DiTusa, J Y Chan, Kurtz R L, Naito M, P W Adams, R G Goodrich, S Guo, V Guritanu   +10 more
core   +4 more sources

Understanding and Addressing the Performance Asymmetry Issue in Semitransparent Laminated Organic Photovoltaic Devices

Advanced Functional Materials, EarlyView.
This work addresses the challenge of current–voltage asymmetry in scalable laminated semitransparent organic photovoltaics (OPVs) for indoor applications. Vertical stratification of materials is shown to create an energy barrier, leading to performance differences under different illumination directions.
Gulzada Beket, Anton Zubayer, Leonie Pap, Huagui Lai, Samiran Bairagi, Nakul Jain, Jochen Stahn, Fan Fu, Kenneth Järrendahl, Fredrik Eriksson, Xabier Rodríguez‐Martínez, Olle Inganäs, Uli Würfel, Thomas Österberg, Jonas Bergqvist, Feng Gao   +15 more
wiley   +1 more source

Ultra-bright emission from Sr doped TiO2 nanoparticles through r-GO conjugation [PDF]

Royal Society Open Science, 2019
Graphene and semiconductor nanocomposite garnered much interest in nanoscience and nanotechnology. In this research, TiO2, TiO2: Sr and TiO2: Sr/r-GO (reduced graphene oxide) nanocomposites have been successfully synthesized via a wet chemical synthesis ...
Sanhita Mandal, Neha Jain, Mukesh Kumar Pandey, S. S. Sreejakumari, Prashant Shukla, Anupama Chanda, Sudipta Som, Subrata Das, Jai Singh   +8 more
doaj   +1 more source

New type of ellipsometry in infrared spectroscopy: The double-reference method

, 2008
We have developed a conceptually new type of ellipsometry which allows the determination of the complex refractive index by simultaneously measuring the unpolarized normal-incidence reflectivity relative to the vacuum and to another reference media. From
Azzam R. M. A., I. Kézsmárki, Philipp H. R., Roseler A., S. Bordács, Thomas M. E.   +5 more
core   +1 more source

Spectroscopic distinction between the normal state pseudogap and the superconducting gap of cuprate high T_{c} superconductors [PDF]

, 2007
We report on broad-band infrared ellipsometry measurements of the c-axis conductivity of underdoped RBa_{2}Cu_{3}O_{7-d} (R=Y, Nd, and La) single crystals.
A. V. Boris, B. Keimer, C. Bernhard, C. T. Lin, D. Munzar, J. Chaloupka, Li Yu, M. Dressel, P. Yordanov, R. M. A. Azzam, Th. Wolf   +10 more
core   +2 more sources

Enhancing Direct Solar Water Splitting via ALD of Multifunctional TiO2/Pt Nanoparticle Coatings With Engineered Interfaces to GaAs/GaInP Tandem Cells

Advanced Functional Materials, EarlyView.
Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth, Verena Streibel, Oliver Bienek, Sergej Levashov, Johannes Dittloff, Kristof Möller, Johanna Eichhorn, Matthias M. May, Ian D. Sharp   +8 more
wiley   +1 more source

Defect‐Free Block Copolymer‐Based Distributed Bragg Reflector for Optimized Light Harvesting in BiVO4 Photoanodes

Advanced Functional Materials, EarlyView.
A solution‐processed distributed Bragg reflector (DBR) film, integrated via block copolymer (BCP) self‐assembly, enhances photon recycling in BiVO4 photoanodes for improved photoelectrochemical (PEC) performance. By tuning lamellar structures using lactic acid and cross‐linking density, the DBR film optimally shifts working wavelengths, boosting ...
Shangxian Ding, Tae‐Kyung Liu, Seungjae Lee, Junsu Kim, Yuan Lu, Jung Hwan Lee, Won Jun Kang, Jung Kyu Kim, Woo‐Dong Jang, Seungyun Jo, Jong Hyeok Park, Du Yeol Ryu   +11 more
wiley   +1 more source

Composition and Resulting Band Alignment at the TiO2/InP Heterointerface: A Fundamental Study Combining Photoemission Spectroscopy and Theory

Advanced Functional Materials, EarlyView.
The chemical composition and band alignment are systematically investigated at the TiO2/InP heterointerface. Thin TiO2 films are deposited by ALD on atomically ordered, P‐terminated p‐InP(100). By combining UPS, XPS, and ab initio molecular dynamics, the atomistic structure and electronic alignment are revealed.
Mohammad Amin Zare Pour, Muhammad Nawaz Qaisrani, Christian Höhn, Johannes Laurenz Wolf, Negin Mogharehabed, Jennifer Velazquez Rojas, Wolfram Jaegermann, Erich Runge, Roel van de Krol, Thomas Hannappel, Christian Dreßler, Agnieszka Paszuk   +11 more
wiley   +1 more source