Results 91 to 100 of about 7,929 (304)

Experimental and theoretical investigation of spontaneous and surface-enhanced Raman scattering (SERS) spectroscopy of pure and boron-doped carbon nanotubes

Journal of Theoretical and Applied Physics, 2018
In this paper, due to the importance and abundant applications of carbon nanotubes doped with boron (CNT/B2O3) in various industries with changes in the electrical, mechanical and chemical properties, mode identification and intensity of the Raman ...
H. Hasan Bouzari, L. Farhang Matin, R. Malekfar, A. Shafiekhani   +3 more
doaj   +1 more source

Efficient Electrocatalytic Conversion of CO2 to Pure Formic Acid Solutions via Strain‐Engineered Bismuth Nanosheets

Advanced Science, EarlyView.
Tensile‐strained bismuth nanosheets (TS‐BiNs) achieve a formate Faradaic efficiency of 92% at −1000 mA cm−2 and enable stable production of pure formic acid (HCOOH) in a solid‐state electrolyte reactor. Theoretical calculations reveal that the introduced strain lowers the energy barrier for *OCHO intermediate formation, fundamentally enhancing the ...
Shiqi Li, Yuefeng Zhang, Panzhe Qiao, Cuo Wu, Xinya Tian, Yufeng Xu, Yun Zhang, Peng Wang, Tingting Li, Muhammad Afaq, Xinlin Luo, Tang Wang, Chunxiao Liu, Zi‐You Yu, Chuan Xia, Min‐Rui Gao, Zhen‐Yu Wu   +16 more
wiley   +1 more source

Mid-infrared Raman sources using spontaneous Raman scattering in germanium core optical fibers

, 2013
Mid-infrared Raman sources based on spontaneous Raman scattering have been demonstrated in a 15 µm diameter glass-clad crystalline germanium optical fiber and in a germanium-wire.
Thomas Hawkins, O\u27Mahony, Christy Charlton, Rand Ismaeel, Colette McDonagh, John Ballato, Lee, Timothy, Timothy Lee, Gilberto Brambilla, Qiang Wu, Charlton O'Mahony, Christy, Wu, Qiang, Brambilla, Gilberto, Christy Charlton O'Mahony, Lin Bo, Wang, Pengfei, Gerald Farrell, McDonagh, Colette, Ballato, John, Yuliya Semenova, Semenova, Yuliya, Bo, Lin, Ismaeel, Rand, Hawkins, Thomas, Farrell, Gerald, Pengfei Wang   +24 more
core   +1 more source

Programmable Hydration Pathways Enable Reconfigurable Ionic Thermoelectrics for Energy Harvesting and Thermal‐Tactile Interaction

Advanced Science, EarlyView.
Programmable hydration pathways enable reconfigurable ionic thermoelectrics in polyquaternium hydrogels. By coupling microscopic solvation, mesoscale water channels, and macroscopic boundary control, hydration‐gated protonics decouples thermopower, response speed, and stability.
Zehao Zhao, Yun Shen, Dongyan Xu
wiley   +1 more source

Reinforcing Oxygen Activation of Spinel Oxide via Mn─O Covalency Engineering for VOCs Oxidation

Advanced Science, EarlyView.
A MnCo spinel catalyst with weakened Mn─O covalency was synthesized via a hard‐template method. The reduced Mn─O covalency facilitates localized electron redistribution, promoting the activation of both molecular oxygen and lattice oxygen, and thereby enabling the efficient and complete oxidation of VOCs (ethyl acetate, toluene, and propane).
Gan Li, Ruochen Zhou, Qianqian Chen, Guobo Li, Xiang Tu, Fengbo Yu, Wenming Liu, Jian Ji, Honggen Peng   +8 more
wiley   +1 more source

Localized surface plasmon resonances in nanostructures to enhance nonlinear vibrational spectroscopies: towards an astonishing molecular sensitivity

Beilstein Journal of Nanotechnology, 2014
Vibrational transitions contain some of the richest fingerprints of molecules and materials, providing considerable physicochemical information. Vibrational transitions can be characterized by different spectroscopies, and alternatively by several ...
Dan Lis, Francesca Cecchet
doaj   +1 more source

Electrochemical Modulation of Laser‐Induced Covalent Functionalization of Graphene

Advanced Science, EarlyView.
Photoelectrochemical functionalization of graphene introduces the electrochemical potential as an additional parameter for the laser‐induced covalent modification of graphene. Tuning of the potential allows for amplification or suppression of the functionalization reaction with constant laser parameters, which enables in situ Raman analysis of ...
Tamara Nagel, Linda Feuerstein, Kevin Gerein, Stefan Wolff, Janina Maultzsch, Andreas Hirsch, Inez M. Weidinger, Frank Hauke   +7 more
wiley   +1 more source

Spontaneous Raman Scattering Effects in Multicore Fibers: Impact on Coexistence of Quantum and Classical Channels

, 2019
We measure spontaneous Raman scattering (SRS) effects in C-band and observe trench-assisted MCF is robust to SRS noise, making it possible to run quantum channels in the neighboring and/or the same core as data channels.
Xavier, Guilherme B,, Gan, L.,, Tang, M.,, Shen, L.,, Popov, Sergei,, Tong, W.,, Ferreira da Silva, T.,, Chen, J.,, Udalcovs, A.,, Lin, R.,, Pang, X.,, Fu, S.,, Ozolins, O.,, Liu, D.,   +13 more
core   +2 more sources

Differentiation of glioblastoma tissues using spontaneous Raman scattering with dimensionality reduction and data classification. [PDF]

Front Oncol, 2022
Romanishkin I, Savelieva T, Kosyrkova A, Okhlopkov V, Shugai S, Orlov A, Kravchuk A, Goryaynov S, Golbin D, Pavlova G, Pronin I, Loschenov V.   +11 more
europepmc   +1 more source

Ultrabroadband two‐beam coherent anti‐Stokes Raman scattering and spontaneous Raman spectroscopy of organic fluids: A comparative study [PDF]

Spontaneous Raman spectroscopy is a well‐established diagnostic tool, allowing for the identification of all Raman active species with a single measurement. Yet, it may suffer from low‐signal intensity and fluorescent background.
Koch, Timea, Stoecker, Axel, Gabler, Thomas, Missbach‐Guentner, Jeannine, Russmann, Christoph, Meyer‐Zedler, Tobias, Popp, Jürgen, Ackermann, Roland, Nolte, Stefan, Lippoldt, Tom   +9 more
core   +1 more source