Results 71 to 80 of about 77,065 (262)

Ultraviolet Spectroscopy

Spectroscopy focuses on examining the interaction occurring between electromagnetic   radiation and matter, where the radiation’s wavelength operates as a function. Its advancement   has paved the way for analyzing the interaction occurring in different particles through dependence on collision energy.
openaire   +2 more sources

Solution‐Processed Two‐Dimensional Indium Oxide on Sodium‐Embedded Alumina for Reconfigurable Optoelectronic Synaptic Transistors

Advanced Functional Materials, EarlyView.
Wafer‐scale two‐dimensioanl In2Se3 oxidized into InOx on sodium‐embedded beta‐alumina enables multifunctional reconfigurable electronics. Sodium ions accumulate within distinct spatial distribution under drain‐controlle and gate‐controlled operation. Drain‐control operation gives controllability of ultraviolet‐driven optoelectronic synaptic conductance
Jinhong Min, Yonghyun Albert Kwon, Hyunbin Kim, Jihyun Kim, Myeongjin Jung, Jaewon Heo, Gwang Ya Kim, Vlastimil Mazanek, Zdeněk Sofer, In Soo Kim, Jeong Ho Cho, Hyesung Park, Sang Min Won, Joohoon Kang   +13 more
wiley   +1 more source

Structures and Encapsulation Motifs of Functional Molecules Probed by Laser Spectroscopic and Theoretical Methods

Sensors, 2010
We report laser spectroscopic and computational studies of host/guest hydration interactions between functional molecules (hosts) and water (guest) in supersonic jets.
Ryoji Kusaka, Yoshiya Inokuchi, Sotiris S. Xantheas, Takayuki Ebata   +3 more
doaj   +1 more source

Chiral Phase Change Nanomaterials

Advanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow, Md Shah Alam, Riad Yahiaoui, Evan M. Smith, Ryan Laing, Jules Gardener, Thomas A. Searles, Piyush J. Shah, Shivashankar Vangala, Joshua R. Hendrickson, Andrew M. Sarangan, Imad Agha   +11 more
wiley   +1 more source

Production of UV-Absorbing Zinc Oxide Nanoparticles by Green Synthesis Using Green Tea Extract [PDF]

Journal of Advanced Materials in Engineering
Introduction and Objectives: Zinc oxide nanoparticles were synthesized as ultraviolet absorbers using green tea extract as a reducing and stabilizing agent.Materials and Methods: Green tea extract, which was obtained by brewing 10 g of green tea in 100 ...
Zahra Zarei, Kazem Tahmasebi
doaj   +1 more source

Development of a Three‐Axis Planar Hall Magnetoresistance Sensor Using a Superparamagnetic Nanoparticle‐Based Flux Guide

Advanced Functional Materials, EarlyView.
A printed superparamagnetic nanoparticle‐based flux guide enables the realization of a hysteresis‐free three‐axis magnetic sensor. This innovative architecture efficiently redirects out‐of‐plane fields to planar sensing elements, facilitating simultaneous vector detection without complex reset protocols.
Changyeop Jeon, Mijin Kim, Keonmok Kim, Byeonghwa Lim, Bibhutibhusan Nayak, Youngdo Jung, Bo‐Yeon Lee, Taehyeong Jeon, Jinwoo Kim, Sunjong Oh, CheolGi Kim   +10 more
wiley   +1 more source

Strongly bound excitons in anatase TiO2 single crystals and nanoparticles

Nature Communications, 2017
Here the authors combine steady-state angle-resolved photoemission spectroscopy, ellipsometry and ultrafast two-dimensional ultraviolet spectroscopy to examine the role of many-body correlations in anatase TiO2, revealing the existence of strongly bound ...
E. Baldini, L. Chiodo, A. Dominguez, M. Palummo, S. Moser, M. Yazdi-Rizi, G. Auböck, B.P.P. Mallett, H. Berger, A. Magrez, C. Bernhard, M. Grioni, A. Rubio, M. Chergui   +13 more
doaj   +1 more source

Demonstrating Vibrational Current Generation With a Self‐Assembled Bioelectret

Advanced Functional Materials, EarlyView.
Vacuum‐deposited films of the plant‐derived molecule, Baicalein, form a self‐assembled bioelectret exhibiting spontaneous orientation polarization and a giant surface potential. The films induce alternating current during the vibration of a movable electrode without charging treatments. Hydrocarbon protection enhances the air stability of the Baicalein
Kouki Akaike, Yukihiro Shimoi, Qingshuo Wei, Yutaro Ono, Satomi Hosono, Yoichi Yamada, Haruhisa Akiyama, Shunsuke Tanaka   +7 more
wiley   +1 more source

Colorado Ultraviolet Transit Experiment Near-ultraviolet Transmission Spectroscopy of the Ultrahot Jupiter KELT-9b

The Astronomical Journal
We present new near-ultraviolet (NUV, λ = 2479–3306 Å) transmission spectroscopy of KELT-9b, the hottest known exoplanet, obtained with the Colorado Ultraviolet Transit Experiment CubeSat.
Arika Egan, Kevin France, Aickara Gopinathan Sreejith, Luca Fossati, Tommi Koskinen, Brian Fleming, Nicholas Nell, Ambily Suresh, P. Wilson Cauley, Jean-Michel Desert, Pascal Petit, Aline A. Vidotto   +11 more
doaj   +1 more source

Spectroscopic and Microscopic Characterization of Inorganic and Polymer Thermoelectric Materials: A Review

Spectroscopy Journal
Thermoelectric (TE) materials represent a critical frontier in sustainable energy conversion technologies, providing direct thermal-to-electrical energy conversion with solid-state reliability.
Temesgen Atnafu Yemata, Tessera Alemneh Wubieneh, Yun Zheng, Wee Shong Chin, Messele Kassaw Tadsual, Tadisso Gesessee Beyene   +5 more
doaj   +1 more source