Results 81 to 90 of about 1,612,967 (382)

The next generation of advanced spectroscopy : surface enhanced raman scattering from metal nanoparticles [PDF]

, 2010
Surface enhanced Raman scattering (SERS) has enjoyed an ever growing research base since its discovery with the number of papers published using the technique and investigating the basis behind it growing exponentially year by year.[1] SERS is an ...
Graham, Duncan
core   +1 more source

Unveiling Defect-Related Raman Mode of Monolayer WS2 via Tip-Enhanced Resonance Raman Scattering.

ACS Nano, 2018
Monolayer tungsten disulfide (WS2) has emerged as an active material for optoelectronic devices due to its quantum yield of photoluminescence. Despite the enormous research about physical characteristics of monolayer WS2, the defect-related Raman ...
Chanwoo Lee, B. Jeong, S. Yun, Young Hee Lee, S. Lee, M. S. Jeong   +5 more
semanticscholar   +1 more source

Tunable Coordination Number in Non‐Metal‐Introduced Copper Catalysts Enables High‐Performance Electrochemical CO2 Reduction to C2 Products

Advanced Functional Materials, EarlyView.
Copper catalysts introduced with different non‐metallic elements regulating the coordination number of Cu are prepared by magnetron sputtering. Reducing the Cu coordination number enhances C─C coupling and boosts C2+ product selectivity, by lowering the energy barrier for the *CO → *CHO conversion step. The optimized Si‐doped Cu catalyst achieves a C2+
Xiaoye Du, Bo Gao, Yixuan Yang, Young In Jo, Dan Qian, Chunhui Xiao, Shujiang Ding, Zhongxiao Song, Ki Tae Nam   +8 more
wiley   +1 more source

Enhanced Raman scattering in graphene by plasmonic resonant Stokes emission

Nanophotonics, 2014
Exploiting surface plasmon polaritons to enhance interactions between graphene and light has recently attracted much interest. In particular, nonlinear optical processes in graphene can be dramatically enhanced and controlled by plasmonic nanostructures.
Ghamsari Behnood G., Olivieri Anthony, Variola Fabio, Berini Pierre   +3 more
doaj   +1 more source

Reevaluating the Activity of ZIF‐8 Based FeNCs for Electrochemical Ammonia Production

Advanced Functional Materials, EarlyView.
Though receiving much attention, the field of electrochemical nitrogen reduction reaction (eNRR) to ammonia is marked by doubts about whether this reaction is possible in aqueous media. This work sheds light on this question for iron single‐atom on N‐doped carbon (FeNC) catalysts—a class of well‐known catalysts that is also worth testing for the sister
Caroline Schneider, S. Esmael Balaghi, Niklas Ortlieb, Patrick Elsaesser, Sima Heidari, Christopher S. Allen, Anna Fischer   +6 more
wiley   +1 more source

Multi-phonon Raman scattering in semiconductor nanocrystals: importance of non-adiabatic transitions

, 2001
Multi-phonon Raman scattering in semiconductor nanocrystals is treated taking into account both adiabatic and non-adiabatic phonon-assisted optical transitions.
A. Baldereschi, A. K. Sood, A. K. Sood, A. Shields, A. V. Fedorov, A. V. Fedorov, B. K. Ridley, C. Guillemot, C. Trallero-Giner, C. Trallero-Giner, D. J. Norris, D. M. Mittleman, E. P. Pokatilov, E. Roca, F. W. Wise, G. Scamarcio, H. A. Jahn, H. Richter, H. Rucker, J. B. Xia, J. T. Devreese, K. Huang, K. Huang, K. Huang, K. J. Nash, L. Wendler, M. Babiker, M. C. Klein, M. Cardona, M. M. Elcombe, M. Nirmal, M. Nirmal, M. P. Chamberlain, M. P. Chamberlain, N. C. Constantinou, N. Sawaki, P. J. Lin, R. Enderlein, R. Enderlein, R. Englman, R. Fuchs, R. Lassnig, R. Rodríguez-Suárez, R. Ruppin, S. I. Pekar, S. N. Klimin, S. N. Klimin, S. Nomura, T. Ando, T. D. Krauss, T. D. Krauss, T. D. Krauss, V. M. Fomin, V. M. Fomin, V. M. Fomin, Y. Chen   +55 more
core   +2 more sources

Comment on "Superconducting gap anisotropy vs. doping level in high-T_c cuprates" by C. Kendziora et al, PRL 77, 727 (1996) [PDF]

, 1997
In a recent paper Kendziora et al concluded that the superconducting gap in overdoped Bi-2212 is isotropic. From data obtained from electronic Raman scattering measurements, their conclusion was based on the observation that pair breaking peaks occured ...
A. E. Curzon, Airton Martin, C. Kendziora, D. Branch, J. C. Irwin, J. G. Naeini, K. C. Hewitt, R. Hackl, T. P. Devereaux, T. P. Devereaux, T. P. Devereaux, X-Z Wang, X. K. Chen, X. K. Chen, X. K. Chen   +14 more
core   +2 more sources

Two-Dimensional Heterostructure as a Platform for Surface-Enhanced Raman Scattering.

Nano letters (Print), 2017
Raman enhancement on a flat nonmetallic surface has attracted increasing attention, ever since the discovery of graphene enhanced Raman scattering. Recently, diverse two-dimensional layered materials have been applied as a flat surface for the Raman ...
Yang Tan, Linan Ma, Zhibin Gao, Ming Chen, Feng Chen   +4 more
semanticscholar   +1 more source

Phonon and Raman scattering of two-dimensional transition metal dichalcogenides from monolayer, multilayer to bulk material. [PDF]

Chemical Society Reviews, 2015
Two-dimensional (2D) transition metal dichalcogenide (TMD) nanosheets exhibit remarkable electronic and optical properties. The 2D features, sizable bandgaps and recent advances in the synthesis, characterization and device fabrication of the ...
Xin Zhang, X. Qiao, W. Shi, Jiang-Bin Wu, D. Jiang, P. Tan   +5 more
semanticscholar   +1 more source

Defects Dynamic in Photo‐Excited CeO2 and their Influence on CO2 Photoreduction

Advanced Functional Materials, EarlyView.
X‐ray photoelectron spectroscopy study under light excitation is presented to track the defect dynamic (Ce4+ to Ce3+) in CeO2. Surface enhanced Raman spectroscopy confirmed the key role of Ce3+ states in controlling charge and energy transfer across the CeO2‐dye molecule interface.
Rambabu Yalavarthi, Shashi B. Mishra, Olivier Henrotte, Emiliano Cortes   +3 more
wiley   +1 more source