dc.contributor.author | GOUNKO, IOURI | en |
dc.date.accessioned | 2017-03-07T12:16:01Z | |
dc.date.available | 2017-03-07T12:16:01Z | |
dc.date.issued | 2015 | en |
dc.date.submitted | 2015 | en |
dc.identifier.citation | Baimuratov A.S, Rukhlenko I.D, Noskov R.E, Ginzburg P, Gun'Ko Y.K, Baranov A.V, Fedorov A.V, Giant Optical Activity of Quantum Dots, Rods, and Disks with Screw Dislocations, Scientific Reports, 5, 2015, 14712- | en |
dc.identifier.other | Y | en |
dc.identifier.uri | http://hdl.handle.net/2262/79597 | |
dc.description.abstract | For centuries mankind has been modifying the optical properties of materials: first, by elaborating the geometry and composition of structures made of materials found in nature, later by structuring the existing materials at a scale smaller than the operating wavelength. Here we suggest an original approach to introduce optical activity in nanostructured materials, by theoretically demonstrating that conventional achiral semiconducting nanocrystals become optically active in the presence of screw dislocations, which can naturally develop during the nanocrystal growth. We show the new properties to emerge due to the dislocation-induced distortion of the crystal lattice and the associated alteration of the nanocrystal’s electronic subsystem, which essentially modifies its interaction with external optical fields. The g-factors of intraband transitions in our nanocrystals are found comparable with dissymmetry factors of chiral plasmonic complexes, and exceeding the typical g-factors of chiral molecules by a factor of 1000. Optically active semiconducting nanocrystals—with chiral properties controllable by the nanocrystal dimensions, morphology, composition and blending ratio—will greatly benefit chemistry, biology and medicine by advancing enantiomeric recognition, sensing and resolution of chiral molecules. | en |
dc.description.sponsorship | The authors thank the Ministry of Education and Science of the Russian Federation for its Grants Nos. 3.17.2014/K and 14.B25.31.0002, and the scholarship of the President of the Russian Federation for young scientists and graduate students (2013–2015). The work of I.D.R. is funded by the Australian Research Council, through its Discovery Early Career Researcher Award DE120100055. I.D.R. and A.S.B. also gratefully acknowledge the Monash Researcher Accelerator Program and the Dynasty Foundation Support Program for Physicists. | en |
dc.format.extent | 14712 | en |
dc.relation.ispartofseries | Scientific Reports | en |
dc.relation.ispartofseries | 5 | en |
dc.rights | Y | en |
dc.subject | chiral molecules. | en |
dc.subject.lcsh | chiral molecules. | en |
dc.title | Giant Optical Activity of Quantum Dots, Rods, and Disks with Screw Dislocations | en |
dc.type | Journal Article | en |
dc.type.supercollection | scholarly_publications | en |
dc.type.supercollection | refereed_publications | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/igounko | en |
dc.identifier.rssinternalid | 153111 | en |
dc.identifier.doi | http://dx.doi.org/10.1038/srep14712 | en |
dc.rights.ecaccessrights | openAccess | |
dc.identifier.rssuri | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84943141333&doi=10.1038%2fsrep14712&partnerID=40&md5=1bf9400e9776252b0ac256a7f84b2d4a | en |