V
V.V. Zalamai
Researcher at Technical University of Moldova
Publications - 68
Citations - 591
V.V. Zalamai is an academic researcher from Technical University of Moldova. The author has contributed to research in topics: Photoluminescence & Exciton. The author has an hindex of 11, co-authored 61 publications receiving 533 citations. Previous affiliations of V.V. Zalamai include Karlsruhe Institute of Technology & Academy of Sciences of Moldova.
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Journal ArticleDOI
Multiphonon resonant Raman scattering in ZnO crystals and nanostructured layers
V. V. Ursaki,Ion Tiginyanu,V.V. Zalamai,Emil Rusu,Gennadi A. Emelchenko,Vladimir M. Masalov,É. N. Samarov +6 more
TL;DR: In this article, multiphonon resonant Raman scattering (RRS) was studied in unintentionally doped bulk ZnO$ crystals and layers, including nanostructured and highly conductive films, excited by 351.1 and363.8 GHz laser lines in the temperature interval from 10 to 300 GHz.
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Luminescence of GaN nanocolumns obtained by photon-assisted anodic etching
Ion Tiginyanu,Veaceslav Ursaki,V.V. Zalamai,Sergiu Langa,Seth M. Hubbard,Dimitris Pavlidis,Helmut Föll +6 more
TL;DR: In this article, an illumination-assisted anodic etching of epilayers grown by metalorganic chemical vapor deposition on sapphire substrates was performed to obtain GaN nanocolumns with transverse dimensions of about 50 nm.
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Photoluminescence and resonant Raman scattering from ZnO-opal structures
V. V. Ursaki,Ion Tiginyanu,V.V. Zalamai,Vladimir M. Masalov,É. N. Samarov,Gennadi A. Emelchenko,F. Briones +6 more
TL;DR: In this article, photoluminescence (PL) of ZnO-opal structures excited by a 351.1 nm laser line was studied, and strong excitonLO phonon and exciton-Frohlich mode coupling was derived from the analysis of multiphonon excitonic resonant Raman scattering.
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Rapid thermal annealing induced change of the mechanism of multiphonon resonant Raman scattering from ZnO nanorods
TL;DR: In this article, a multiphonon Resonant Raman scattering (RRS) excited by an Ar + laser was studied at temperatures from 10 to 300 k in as-grown and rapid thermal annealed (RTA) aluminum doped ZnO nanorods synthesized by an aqueous chemical deposition method using zinc sulfate, aluminum sulfate and ammonia hydroxide as precursors.
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Exciton polariton spectra and carrier effective masses in ZnO single crystals
TL;DR: In this article, the authors measured the photoreflectivity and photoluminescence spectra in the region of exciton resonance in ZnO single crystals and determined the energy position of the ground and excited exciton states.