Editorial Optical Properties of Nanoparticles and Nanocomposites Pathik Kumbhakar, 1 Suprakas Sinha Ray, 2 and Andey L. Stepanov 3 1 Nanoscience Laboratory, Department of Physics, National Institute of Technology (NIT), Durgapur, West Bengal 713209, India 2 Council for Scientific and Industrial Research, Pretoria 0001, South Africa 3 Nano-Optics and Nano-Plasmonics Group, Kazan Physical-Technical Institute, Russian Academy of Sciences, Kazan 420029, Russia Correspondence should be addressed to Pathik Kumbhakar; [email protected] Received 1 April 2014; Accepted 1 April 2014; Published 13 April 2014 Copyright © 2014 Pathik Kumbhakar et al. is is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Semiconductor and metallic nanomaterials and nanocom- posites possess interesting linear absorption, photolumines- cence emission, and nonlinear optical properties. Nanoma- terials having small particle sizes exhibit enhanced optical emission as well as nonlinear optical properties due to the quantum confinement effect. Synthesis, characterization, and measurement of optical properties of nanomaterials with different anisotropic shapes have also drawn significant attention. Recently, a lot of research focuses have been given on the preparation of polymer semiconductor and other nanocomposite materials having potential applications in different optoelectronics and photonics devices. In this special issue, research papers covering the follow- ing topics are called for publication and a total of 8 numbers of original research papers and review articles that have been accepted got publication. e topics include techniques of synthesis, characterizations, and optical properties of semiconductor nanomaterials, nanocomposites of polymer- semiconductor and graphene-metal nanoparticles, and plas- monic properties of metal nanoparticles and nanostructures. In the paper entitled “Sensing heavy metals using mesopo- rous-based optical chemical sensors,” Urek et al. have reviewed the recent advances, advantages, and limitations of meso- porous silica-based optical sensors for heavy metal detection. In the paper entitled “Optical property characterization of novel graphene-X (X = Ag, Au and Cu) nanoparticle hybrids,” authors have reported their results on investigation on syn- thesis, nanostructural characterizations, and optical proper- ties, including modifications of surface plasmon resonance (SPR) properties and of graphene-metal nanocomposite with the incorporation of nanoparticles in the graphene nanosheets. Chung et al. in their paper entitled “Green light emission of 1− nanocrystals synthesized by one-pot method” have reported a facile one-pot synthesis technique for preparation of ternary nanocrystals of Zn Cd 1− Se which show tunable photoluminescence light emission in the green wavelength region having quantum yield of 45–89%. Zhang et al. reported the synthesis of ZnO nanostructures with different morphologies, such as nanopyramids, nanosheets, and nanoparticles in their paper entitled “Morphology and optical property of ZnO nanostructures grown by solvothermal method: effect of the solution pretreatment.” ey have used Raman and photoluminescence spectroscopes to examine the crystallinity and optical property of the samples. In the paper entitled “Optical properties and in vitro bio- logical studies of oligonucleotide-modified quantum dots,” G´ er- ard et al. have reported the synthesis and characterizations of a series of new oligonucleotide-modified CdTe quantum dots (QDs); also they have performed in vitro test. Xie et al. have reported a review on recent advances in optimizing lumines- cence properties of doped nanoparticles based on core-shell structure in their paper entitled “Core-shell structure in doped inorganic nanoparticles: approaches for optimizing lumines- cence properties.” Luo et al. in the paper entitled “Luminescent properties of y2o3:eu3+ nanocrystals prepared by molten salt synthesis” have reported the synthesis, structures, morpholo- gies, and the photoluminescent properties of Y2O3:Eu3+ phosphors. ey observed tuning in particle size by using different surfactants and reported red emission under the excitation of UV light of 254 nm. e treatment of water by using the heterogeneous semiconductor photocatalysts has drawn recent attention. However, Sifontes et al. in the paper entitled “Effect of calcination temperature on structural properties and photocatalytic activity of ceria nanoparticles Hindawi Publishing Corporation Journal of Nanomaterials Volume 2014, Article ID 181365, 2 pages http://dx.doi.org/10.1155/2014/181365
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EditorialOptical Properties of Nanoparticles and Nanocomposites
Pathik Kumbhakar,1 Suprakas Sinha Ray,2 and Andey L. Stepanov3
1 Nanoscience Laboratory, Department of Physics, National Institute of Technology (NIT), Durgapur, West Bengal 713209, India2 Council for Scientific and Industrial Research, Pretoria 0001, South Africa3 Nano-Optics and Nano-Plasmonics Group, Kazan Physical-Technical Institute, Russian Academy of Sciences, Kazan 420029, Russia
Correspondence should be addressed to Pathik Kumbhakar; [email protected]
Received 1 April 2014; Accepted 1 April 2014; Published 13 April 2014
Copyright © 2014 Pathik Kumbhakar et al. This is an open access article distributed under the Creative Commons AttributionLicense, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properlycited.
Semiconductor and metallic nanomaterials and nanocom-posites possess interesting linear absorption, photolumines-cence emission, and nonlinear optical properties. Nanoma-terials having small particle sizes exhibit enhanced opticalemission as well as nonlinear optical properties due to thequantum confinement effect. Synthesis, characterization, andmeasurement of optical properties of nanomaterials withdifferent anisotropic shapes have also drawn significantattention. Recently, a lot of research focuses have been givenon the preparation of polymer semiconductor and othernanocomposite materials having potential applications indifferent optoelectronics and photonics devices.
In this special issue, research papers covering the follow-ing topics are called for publication and a total of 8 numbersof original research papers and review articles that havebeen accepted got publication. The topics include techniquesof synthesis, characterizations, and optical properties ofsemiconductor nanomaterials, nanocomposites of polymer-semiconductor and graphene-metal nanoparticles, and plas-monic properties of metal nanoparticles and nanostructures.
In the paper entitled “Sensing heavy metals using mesopo-rous-based optical chemical sensors,” Urek et al. have reviewedthe recent advances, advantages, and limitations of meso-porous silica-based optical sensors for heavymetal detection.In the paper entitled “Optical property characterization ofnovel graphene-X (X = Ag, Au and Cu) nanoparticle hybrids,”authors have reported their results on investigation on syn-thesis, nanostructural characterizations, and optical proper-ties, including modifications of surface plasmon resonance(SPR) properties and of graphene-metal nanocompositewith the incorporation of nanoparticles in the graphenenanosheets. Chung et al. in their paper entitled “Green light
emission of 𝑍𝑛𝑥𝐶𝑑1−𝑥𝑆𝑒 nanocrystals synthesized by one-pot
method” have reported a facile one-pot synthesis techniquefor preparation of ternary nanocrystals of Zn
𝑥Cd1−𝑥
Se whichshow tunable photoluminescence light emission in the greenwavelength region having quantum yield of 45–89%. Zhanget al. reported the synthesis of ZnO nanostructures withdifferent morphologies, such as nanopyramids, nanosheets,and nanoparticles in their paper entitled “Morphology andoptical property of ZnO nanostructures grown by solvothermalmethod: effect of the solution pretreatment.” They have usedRaman andphotoluminescence spectroscopes to examine thecrystallinity and optical property of the samples.
In the paper entitled “Optical properties and in vitro bio-logical studies of oligonucleotide-modified quantum dots,” Ger-ard et al. have reported the synthesis and characterizations ofa series of new oligonucleotide-modified CdTe quantum dots(QDs); also they have performed in vitro test. Xie et al. havereported a review on recent advances in optimizing lumines-cence properties of doped nanoparticles based on core-shellstructure in their paper entitled “Core-shell structure in dopedinorganic nanoparticles: approaches for optimizing lumines-cence properties.” Luo et al. in the paper entitled “Luminescentproperties of y2o3:eu3+ nanocrystals prepared by molten saltsynthesis” have reported the synthesis, structures, morpholo-gies, and the photoluminescent properties of Y2O3:Eu3+phosphors. They observed tuning in particle size by usingdifferent surfactants and reported red emission under theexcitation of UV light of 254 nm. The treatment of waterby using the heterogeneous semiconductor photocatalystshas drawn recent attention. However, Sifontes et al. in thepaper entitled “Effect of calcination temperature on structuralproperties and photocatalytic activity of ceria nanoparticles
Hindawi Publishing CorporationJournal of NanomaterialsVolume 2014, Article ID 181365, 2 pageshttp://dx.doi.org/10.1155/2014/181365
2 Journal of Nanomaterials
synthesized employing chitosan as template” have reported thesynthesis of ceria nanoparticles and degradation ofCongo red(CR) dye under the visible light irradiation.
We are very much happy to note the research progresson the techniques of synthesis, characterization, and opti-cal properties of nanostructured materials. Also we arevery much hopeful that this special issue will provide thethoughts to the beginners and will be helpful for the potentialresearchers to start research work in the area of developmentof the nanoparticles and nanocomposite materials which arerequired for the future optoelectronic devices.
Acknowledgments
The editors would like to thank and express their apprecia-tions to all authors for their valued contributions and to allpotential reviewers for sparing their valuable time, efforts,and constructive comments for this special issue. We arethankful to the Huda Qabeel for her help.
Pathik KumbhakarSuprakas Sinha RayAndey L. Stepanov
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