Raman scattering for probing semiconductor nanostructures: From nanocrystal arrays towards a single nanocrystal

Alexander Milekhin, Nikolay Yeryukov, Larisa Sveshnikova, Tatyana Duda, Sergey Kosolobov, Ekaterina Rodyakina, Alexander Latyshev, Cameliu Himcinschi, Volodymyr Dzhagan, Wen-Bin Jian, Dietrich Zahn

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We present a study of resonant and surface enhanced Raman scattering (SERS) by arrays of CdS, CuS, ZnO, and PbSe nanocrystals (NCs) with various areal density. Resonant Raman scattering by optical phonons and their overtones up to 9th order was observed for ZnO NC arrays by adjusting the laser energy to that of the interband transitions. The resonance enhancement allowed a Raman response from arrays of NCs with a low areal density (down to 10 PbSe NCs per 1 μm2) to be measured. An enhancement of Raman scattering by LO modes in CdS NC arrays by a factor of about 730 due to the resonant SERS effect was demonstrated. SERS effect by optical phonons in CuS NCs with ultra-low areal density formed on laterally ordered arrays of Au nanoclusters was observed.

Original languageEnglish
Title of host publicationPhysics of Semiconductors - Proceedings of the 31st International Conference on the Physics of Semiconductors, ICPS 2012
PublisherAmerican Institute of Physics Inc.
Pages530-531
Number of pages2
ISBN (Print)9780735411944
DOIs
StatePublished - 1 Jan 2013
Event31st International Conference on the Physics of Semiconductors, ICPS 2012 - Zurich, Switzerland
Duration: 29 Jul 20123 Aug 2012

Publication series

NameAIP Conference Proceedings
Volume1566
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference31st International Conference on the Physics of Semiconductors, ICPS 2012
CountrySwitzerland
CityZurich
Period29/07/123/08/12

Keywords

  • nanocrystal
  • phonons
  • quantum dot
  • Raman scattering
  • SERS

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