Journal of Raman Spectroscopy

Cover image for Vol. 48 Issue 9

Early View (Online Version of Record published before inclusion in an issue)

Impact Factor: 2.969

ISI Journal Citation Reports © Ranking: 2016: 8/41 (Spectroscopy)

Online ISSN: 1097-4555

  1. RESEARCH ARTICLES

    1. Painting and heating: A nonconventional, scalable route to sensitive biomolecular analysis with plasmon-enhanced spectroscopy

      Zufang Huang, Soumik Siddhanta, Chi Zhang, Thomas Kickler, Gang Zheng and Ishan Barman

      Version of Record online: 24 AUG 2017 | DOI: 10.1002/jrs.5226

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      We present a solution-processed method to develop a low-cost, paper-based surface-enhanced Raman spectroscopy (SERS) molecular detection platform. The ink-based coating technique ensures uniform absorption for strong and reproducible plasmonic enhancement for SERS measurements. The facile fabrication process combined with the control over analyte flow patterns offers significant advantages for development of paper-based SERS analytical devices, especially for use in resource-limited settings.

  2. Research articles

    1. A micro-Raman spectroscopic study of Cr(OH)3 and Cr2O3 nanoparticles obtained by the hydrothermal method

      Adriano S. O. Gomes, Negin Yaghini, Anna Martinelli and Elisabet Ahlberg

      Version of Record online: 23 AUG 2017 | DOI: 10.1002/jrs.5198

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      Scanning electron microscopy image of chromium-based nanoparticles that change from amorphous Cr(OH)3 into crystalline Cr2O3 if heat treated or exposed to a laser power higher than 0.7 mW.

  3. RESEARCH ARTICLES

    1. Sensing carbon allotropes in protective coatings on optical fibers with far- and near-field Raman spectroscopy and microscopy

      Sergey S. Kharintsev, Svetlana V. Saparina, Andrei A. Stolov, Jie Li and Alexandr I. Fishman

      Version of Record online: 2 AUG 2017 | DOI: 10.1002/jrs.5221

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      Tip-enhanced Raman scattering (TERS) is a powerful analytical instrument that empowers us to acquire spectroscopic information about a specimen of interest down to subnanometer spatial resolution and single-molecule detection sensitivity. This enables to get insights into the intrinsic structure of carbon claddings of optical fibers. A TERS method provides evidence for the presence of carbon allotropes within the protective cladding. It, in turn, allows to clarify the permeation mechanism of molecular hydrogen and hydroxyl ions through the carbon layer.

  4. Reviews

    1. Raman scattering of graphene-based systems in high magnetic fields

      Clement Faugeras, Milan Orlita and Marek Potemski

      Version of Record online: 1 AUG 2017 | DOI: 10.1002/jrs.5213

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      We review in this article the different results obtained in the last decade in the field of Raman scattering of graphene-based systems, with an applied magnetic field. Such techniques allow addressing the physics of electron–phonon and electron–electron interactions in graphene monolayer and multilayer, as well as in bulk graphite.

  5. RESEARCH ARTICLES

    1. Authentication of adulterated edible oil using coherent anti-Stokes Raman scattering spectroscopy

      Chang Woo Park, Ingu Lee, Seong-Hoon Kwon, Kyu-Sup Lee, Cheol Jo and Do-Kyeong Ko

      Version of Record online: 1 AUG 2017 | DOI: 10.1002/jrs.5217

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      By using coherent anti-Stokes Raman scattering spectroscopy, we obtained the characteristic numbers of ═C─H bonds and C─H bonds in the mixed edible oils and demonstrated a way to find out the composition and ratio of edible oil mixed with impurities, which has potential to be an authentication method of unknown oil.

  6. Research articles

    1. An investigation of a unique group of painted silk banners from a Polish collection

      Anna Klisińska-Kopacz

      Version of Record online: 28 JUL 2017 | DOI: 10.1002/jrs.5212

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      Raman spectroscopy and X-ray fluorescence spectroscopy have been used to examine three unique 16th century painted silk banners in order to characterize technology of manufacturing and the materials used. The banners were examined by Raman spectroscopy and X-ray fluorescence spectrometry. Obtained results were used by the conservators to establish the most adequate display methods. A microclimate display system was selected as the most adequate option for the safety exhibition.

    2. Liquid magnetic competitive immunoassay of clenbuterol based on surface-enhanced Raman spectroscopy

      Chao Wei, Chenjie Zhang, Minmin Xu, Yaxian Yuan and Jianlin Yao

      Version of Record online: 28 JUL 2017 | DOI: 10.1002/jrs.5216

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      Surface-enhanced Raman spectroscopy-based liquid magnetic competitive immunoassay approach was developed to detect clenbuterol with high sensitivity and specificity. The readout strategy was based on the inverse correlation of SERS intensity and concentration. The limit of detection and half maximal inhibitory concentration were about 0.22 and 246.31 fg ml−1 for clenbuterol target after the optimization of immunocomplex configuration. This approach is expected to be developed as a promising technique for the detection of micromolecules.

  7. RESEARCH ARTICLES

    1. Raman spectroscopy characterization of 10-cash productions from the late Chinese emperors to the Republic

      Noemí Montoya, Elena Montagna, Yu Lee, María Teresa Doménech-Carbó and Antonio Doménech-Carbó

      Version of Record online: 28 JUL 2017 | DOI: 10.1002/jrs.5218

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      The work presented here was conducted from a set of 59 10-cash copper coins that includes coins of the regular provincial series minted in different provinces as well as of the unified Hu Poo and Tai Ching Ti Kuo unified series, all of the imperial period, and republican concurrency from different mints are studied by Raman spectroscopy for discriminating monetary emissions.

  8. Research articles

    1. In situ Raman spectroscopic studies of polyvinyl toluene under laser-driven shock compression and comparison with hydrostatic experiments

      Vinay Rastogi, S. Chaurasia, Usha Rao, C. D. Sijoy, H. K. Poswal, V. Mishra, Manmohan Kumar and M. N. Deo

      Version of Record online: 27 JUL 2017 | DOI: 10.1002/jrs.5215

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      Shock wave-induced changes in intra-molecular vibrations of PVT are studied over the range of 02.25 GPa. A 1D hydrodynamic simulation is performed to calculate the equation of state of the PVT under shock compression. The modes at 1001, 1031 and 1602 cm−1 of PVT are extensively analyzed. Results indicate that the primarily volume changes <1 GPa are mainly because of free volume in PVT. These results are also compared with quasi-hydrostatic compression results, to see if any general trend can be established.

    2. Conformational differentiation of α-cyanohydroxycinnamic acid isomers: a Raman spectroscopic study

      Jayson Vedad, Maciej E. Domaradzki, Elmer-Rico E. Mojica, Emmanuel J. Chang, Adam A. Profit and Ruel Z. B. Desamero

      Version of Record online: 27 JUL 2017 | DOI: 10.1002/jrs.5209

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      Two positional isomers of α-cyanohydroxycinnamic acid with different properties were characterized by using Raman spectroscopy. By analysing and comparing their different spectral shifts, we were able to construct the three-dimensional structure of both isomers which can help explain their different physico-chemical properties.

    3. Enhanced Raman and photoluminescence response in monolayer MoS2 due to laser healing of defects

      Achintya Bera, D. V. S. Muthu and A. K. Sood

      Version of Record online: 27 JUL 2017 | DOI: 10.1002/jrs.5196

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      We show that a modest exposure of monolayer MoS2 in air to laser irradiation results in simultaneous enhancement of the photoluminescence (PL) associated with both trions and excitons as well as Raman intensity of the Raman modes. The simultaneous increase of trion and exciton PL is shown to be possible only due to laser-assisted passivation of S vacancies by oxygen. The observed changes in PL and Raman data are explained in terms of combined effects of change in electron concentrations and oxygen-induced lattice displacements.

    4. The application of Raman spectroscopy to djerfisherite identification

      Alexander V. Golovin, Sergey V. Goryainov, Svetlana N. Kokh, Igor S. Sharygin, Sergey V. Rashchenko, Konstantin A. Kokh, Ella V. Sokol and Anna S. Devyatiyarova

      Version of Record online: 26 JUL 2017 | DOI: 10.1002/jrs.5210

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      The diagnostic Raman bands of djerfisherite K6(Fe,Cu,Ni)25S26Cl are two strong bands at 264–273 and 321–344 cm−1 and from two up to five medium/weak bands in the region from 90 to 190 cm−1 assigned to intense vibrational A1g modes. The Raman spectra of the Ni + Cu + Co-rich (5–9 apfu) djerfisherite are characterized by broadening and asymmetry of bands in comparison with Ni + Cu + Co-poor djerfisherite. The combination of Raman spectroscopy and SEM/EDX is a reliable alternative to single-crystal XRD analysis for precise identification of djerfisherite.

    5. Comparison of seven portable Raman spectrometers: beryl as a case study

      Jan Jehlička, Adam Culka, Danilo Bersani and Peter Vandenabeele

      Version of Record online: 26 JUL 2017 | DOI: 10.1002/jrs.5214

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      Beryl varieties such as emeralds (including synthetic) and aquamarines were investigated using seven portable Raman spectrometers equipped with 785 and 532 nm as well as a sequentially shifted excitation lasers. Spectroscopic performance and ergonomics of individual instrument are discussed.

    6. Raman excitation profiles of hybrid systems constituted by single-layer graphene and free base phthalocyanine: Manifestations of two mechanisms of graphene-enhanced Raman scattering

      Tereza Uhlířová, Peter Mojzeš, Zuzana Melniková, Martin Kalbáč, Veronika Sutrová, Ivana Šloufová and Blanka Vlčková

      Version of Record online: 26 JUL 2017 | DOI: 10.1002/jrs.5206

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      Raman excitation profiles reveal two resonance mechanism of graphene-enhanced Raman scattering in single-layer graphene-free base phthalocyanine monolayer hybrids and manifestations of graphene–phthalocyanine interactions.

  9. Reviews

    1. Mildred S. Dresselhaus (1930–2017)

      Ado Jorio

      Version of Record online: 18 JUL 2017 | DOI: 10.1002/jrs.5194

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      Raman spectroscopy lost one of its greatest contributors, Mildred S. Dresselhaus. She co-authored about 350 papers carrying the word ‘Raman’ in the title. She had significant contribution to pave the field of Raman spectroscopy applied to graphene-related materials: (1970s) graphite and graphite intercalated compounds, (1980s) graphite ion-implantation and fibers, (1990s) fullerenes, (2000s) carbon nanotubes, and (2010s) two-dimensional systems.

    2. Resonance Raman effects in transition metal dichalcogenides

      Jae-Ung Lee and Hyeonsik Cheong

      Version of Record online: 18 JUL 2017 | DOI: 10.1002/jrs.5200

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      Excitation energy dependence of Raman spectrum of 4TL MoSe2.

  10. Research articles

    1. A method for the automated Raman spectra acquisition

      Guillermo Lopez-Reyes and Fernando Rull Pérez

      Version of Record online: 18 JUL 2017 | DOI: 10.1002/jrs.5185

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      In this paper, we present a suite of algorithms to automate the Raman acquisition by automatically adapting to the sample under analysis, addressing issues such as spectral saturation, fluorescence, cosmic ray detection and removal, and adjustment of the acquisition parameters to optimize the acquired spectral data. This suite has been developed in the framework of the Raman Laser Spectrometer (RLS) instrument development for the Exomars mission but can be applied to any Raman spectrometer. This will allow the spectrometer to adapt to the characteristics of the sample that is being analyzed, optimizing the total operative time, while improving the usability and overall efficiency of the system.

    2. Raman bands of twisted bilayer graphene

      Valentin N. Popov

      Version of Record online: 20 JUN 2017 | DOI: 10.1002/jrs.5189

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      We propose a perturbative approach within a non-orthogonal tight-binding model, which allows for a significant reduction of the computational time for calculation of the optical properties of twisted bilayer graphene. The dependence of the optical transition energies on the twist angle is derived from the dielectric function, and the behaviour of the Raman excitation profile of the G band is studied in detail. The obtained results can be used to support the structural characterization of twisted bilayer graphene.

    3. Analysis of the pigments for smoked mural by confocal micro-Raman spectroscopy

      Yan Li, Fengping Wang, Xinyi Fu, Zhijun Sun and Yingqing Xu

      Version of Record online: 20 JUN 2017 | DOI: 10.1002/jrs.5158

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      Confocal micro-Raman spectroscopy is adopted to investigate the smoked murals in Mogao Grottoes. Based on the results of smoked fragments, a feasible and reliable smoking experiment was developed to investigate the degradation of the pigments. Vermilion is damaged, while aragonite and calcite are stable during the smoking process.

    4. Raman spectroscopy of weathered shungites

      S. Y. Chazhengina and V. V. Kovalevski

      Version of Record online: 20 JUN 2017 | DOI: 10.1002/jrs.5188

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      We applied Raman spectroscopy method and the electron diffraction to investigate the evolution of Raman spectra during weathering of carbonaceous material of shungite rocks, Karelia (Russia). The Raman spectra of weathered shungites are characterized by increase of FWHM-D1, that is accompanied by the decrease of intensity-based ratio R1 = ID/IG and the change in intensity of the bands in second-order region. The Raman spectral data indicate that weathering results in the alteration of both intralayer and interlayer ordering of shungites.

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