Self-trapping of the d-d charge transfer exciton in rock-salt structured Zn1-xNixO evidenced by soft X-ray excited luminescence / Sokolov V. I.,Pustovarov V. A.,Churmanov V. N.,Ivanov V. Yu,Gruzdev N. B.,Sokolov P. S.,Baranov A. N.,Moskvin A. S. // . - 2013. - V. 10, l. 10. - P. 1329-1335.

ISSN/EISSN:

1862-6351 / нет данных

Type:

Proceedings Paper

Abstract:

Luminescence spectra of NiO and solid solutions Zn1-xNixO have been investigated under vacuum ultra-violet (VUV) and soft X-ray (XUV) excitation (DESY, Hamburg). Photoluminescence (PL) spectra show broad emission violet and green bands centered at about 3.2 and 2.6 eV, respectively. The PL excitation (PLE) spectral evolution and lifetime measurements reveal that the two mechanisms with short and long decay times, attributed to the d(e(g))-d(e(g)) and p(pi)-d charge transfer (CT) transitions in the range 4-6 eV, respectively, are responsible for the observed emissions. The XUV excitation makes it possible to avoid the predominant role of the surface effects in luminescence and reveal a bulk violet luminescence with puzzling well isolated doublet of very narrow lines. These lines with close energies near 3.3 eV are attributed to recombination transitions in the self-trapped d-d CT excitons formed by the coupled Jahn-Teller Ni+ and Ni3+ centers. (C) 2013 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim

Author keywords:

zinc-nickel oxide; luminescence; exciton; self-trapping ELECTRONIC-STRUCTURE; OPTICAL-PROPERTIES; NIO; ELECTROREFLECTANCE; PHOTOLUMINESCENCE; SEMICONDUCTORS; SPECTROSCOPY; EXCITATIONS; TRANSITIONS; INSULATORS

DOI:

10.1002/pssc.201200980

Web of Science ID:

ISI:000337152100017

Соавторы в МНС:

Другие поля

Поле	Значение
Editor	Hildebrandt, S and Cavalleri, M and Herrmann, L and Hopcke, H and Juschak, I and DaSilva, CN and Pfisterer, A and Stass, I
Booktitle	PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 10, NO 10
Series	Physica Status Solidi C-Current Topics in Solid State Physics
Note	7th International Workshop on Zinc Oxide and Related Materials (IWZnO), Nice, FRANCE, SEP 11-14, 2012
Organization	GEMAC Lab; CEA-LETI; CRHEA Lab; Univ Franco Allemande Deutsch Franzosisch Hsch; Ctr Natl Rech Sci; CAMECA; AIXTRON; MINERAL Ltd; NOVASIC; RIBER SA; CRYSTEC, GmbH
Publisher	WILEY-V C H VERLAG GMBH
Address	PAPPELALLEE 3, W-69469 WEINHEIM, GERMANY
Language	English
Keywords-Plus	ELECTRONIC-STRUCTURE; OPTICAL-PROPERTIES; NIO; ELECTROREFLECTANCE; PHOTOLUMINESCENCE; SEMICONDUCTORS; SPECTROSCOPY; EXCITATIONS; TRANSITIONS; INSULATORS
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Author-Email	alexandr.moskvin@usu.ru
ResearcherID-Numbers	Sokolov, Petr/E-8376-2011 Gruzdev, Nikita/J-9311-2013
ORCID-Numbers	Sokolov, Petr/0000-0003-3516-3953 Gruzdev, Nikita/0000-0001-7563-6685
Number-of-Cited-References	30
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	17
Doc-Delivery-Number	BA6IO