Amplification or cancellation of Fano resonance and quantum confinement induced asymmetries in Raman line-shapes
Literature Information
Shailendra K. Saxena, Priyanka Yogi, Suryakant Mishra, Hari Mohan Rai, Vikash Mishra, M. Kamal Warshi, Swarup Roy, Puspen Mondal, Pankaj R. Sagdeo, Rajesh Kumar
Fano resonance is reported here to be playing a dual role by amplifying or compensating for the quantum confinement effect induced asymmetry in Raman line-shape in silicon (Si) nanowires (NWs) obtained from heavily doped n- and p-type Si wafers respectively. The compensatory nature results in a near symmetric Raman line-shape from heavily doped p-type Si nanowires (NWs) as both the components almost cancel each other. On the other hand, the expected asymmetry, rather with enhancement, has been observed from heavily doped n-type SiNWs. Such a system (p- & n-) dependent Raman line-shape study has been carried out by theoretical line-shape analysis followed by experimental validation through suitably designed experiments. A dual role of Fano resonance in n- and p-type nano systems has been observed to modulate Raman spectra differently and reconcile accordingly to enhance and cease the Raman spectral asymmetry respectively. The present analysis will enable one to be more careful while analyzing a symmetric Raman line-shape from semiconductor nanostructures.
Related Literature
Dual-stimuli sensitive keratin graft PHPMA as physiological trigger responsive drug carriers
Lijun Zhu, Hongliang Kang, Xiaozhong Qu, Ruigang Liu
DOI: 10.1039/C4PY01750A
Efficient cancer cell capturing SiNWAs prepared via surface-initiated SET-LRP and click chemistry
Zhonglin Lyu, Yafei Luan, Xinhong Xiong, Jingjing Pan, Gaojian Chen, Hong Chen
DOI: 10.1039/C5PY00247H
Avoiding compositional drift during the RAFT copolymerization of N-(2-hydroxypropyl)methacrylamide and N-acryloxysuccinimide: towards uniform platforms for post-polymerization modification
John Moraes, Ioana-Maria Simionca, Hedi Ketari, Harm-Anton Klok
DOI: 10.1039/C5PY00253B
Selective degradation in aliphatic block copolyesters by controlling the heterogeneity of the amorphous phase
Veluska Arias, Peter Olsén, Karin Odelius, Anders Höglund, Ann-Christine Albertsson
DOI: 10.1039/C5PY00136F
Modification of chitosan with polystyrene and poly(n-butyl acrylate) via nitroxide-mediated polymerization and grafting from approach in homogeneous media
R. Champagne-Hartley, E. Saldívar-Guerra, M. F. Cunningham
DOI: 10.1039/C5PY00028A
A facile route to diverse assemblies by host–guest recognition
Songling Han, Qixiong Zhang, Jiawei Guo, Xiaohui Li, Jianxiang Zhang
DOI: 10.1039/C5PY00297D
Chiral surfactants for dispersing carbon nanotubes
Pengcheng Lin, Yuehua Cong, Baoyan Zhang
DOI: 10.1039/C5PY00040H
High molecular weight mechanochromic spiropyran main chain copolymers via reproducible microwave-assisted Suzuki polycondensation
Lukas Metzler, Thomas Reichenbach, Oliver Brügner, Hartmut Komber, Florian Lombeck, Stefan Müllers, Ralf Hanselmann, Harald Hillebrecht
DOI: 10.1039/C5PY00141B
High performance quinacridone-based polymers in film transistors and photovoltaics: effects of vinylene linkage on crystallinity and morphology
DOI: 10.1039/C5PY00103J
You might also like
What is Ethyl 3-cyclohexylpropanoate (CAS: 10094-36-7)?
Ethyl 3-cyclohexylpropanoate is a clear, colorless to light yellow liquid with a...
How should waste containing 2-(Hydroxymethyl)-5-(methoxycarbonyl)-6-methyl-4-(2-nitrophenyl)nicotinic acid (CAS: 34783-31-8) be handled?
Waste containing 2-(Hydroxymethyl)-5-(methoxycarbonyl)-6-methyl-4-(2-nitrophenyl...
How should waste containing 2,4,6-Tris(pentafluoroethyl)-1,3,5-triazine (CAS: 858-46-8) be handled?
Waste containing 2,4,6-Tris(pentafluoroethyl)-1,3,5-triazine (CAS: 858-46-8) sho...
What precautions should be taken when handling Chloroac-nle-oh (CAS: 56787-36-1)?
When handling Chloroac-nle-oh (CAS: 56787-36-1), it is essential to wear appropr...
What industries use Ethyl 6-phenylimidazo[2,1-b][1,3]thiazole-3-carboxylate (CAS: 752244-05-6)?
Ethyl 6-phenylimidazo[2,1-b][1,3]thiazole-3-carboxylate is primarily used in the...
Are there alternatives to alpha-(2-Bromophenyl)benzylamine (CAS: 55095-15-3) in synthesis?
Alternatives to alpha-(2-Bromophenyl)benzylamine (CAS: 55095-15-3) in synthesis ...
How should waste containing 2-Chloro-5-methoxypyridine (CAS: 139585-48-1) be handled?
Waste containing 2-Chloro-5-methoxypyridine (CAS: 139585-48-1) should be managed...
What industries use 1-(4-Methoxyphenyl)-2,5-dimethyl-1H-pyrrole (CAS: 5044-27-9)?
1-(4-Methoxyphenyl)-2,5-dimethyl-1H-pyrrole (CAS: 5044-27-9) is used in various ...
Are there alternatives to 3-Bromo-5-(N-Boc)aminomethylisoxazole (CAS: 903131-45-3) in synthesis?
There are alternative reagents and compounds that can be used in the synthesis o...
What is Tungsten(IV) oxide (CAS: 12036-22-5)?
Tungsten(IV) oxide, also known as tungsten dioxide, is a chemical compound with ...
Source Journal
Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.










![Bis[(1,2,3,4,5-eta)-1-(diphenylphosphino)cyclopentadienyl]iron structure Bis[(1,2,3,4,5-eta)-1-(diphenylphosphino)cyclopentadienyl]iron structure](https://static.chemtradehub.com/structs/121/12150-46-8-ecd2.webp)

![1-(Hexopyranosyloxy)-4a,5-dihydroxy-7-methyl-1,4a,5,6,7,7a-hexahydrocyclopenta[c]pyran-7-yl 3-phenylacrylate structure 1-(Hexopyranosyloxy)-4a,5-dihydroxy-7-methyl-1,4a,5,6,7,7a-hexahydrocyclopenta[c]pyran-7-yl 3-phenylacrylate structure](https://static.chemtradehub.com/structs/192/19210-12-9-ecae.webp)

