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Photoluminescence studies of Li-doped Si nanocrystals

SYSNO ASEP	0396399
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Photoluminescence studies of Li-doped Si nanocrystals
Author(s)	Klimešová, Eva (FZU-D)_{RID, ORCID} Vacík, Jiří (UJF-V)_{RID, ORCID, SAI} Holý, V. (CZ) Pelant, Ivan (FZU-D)_{RID, ORCID, SAI}
Source Title	Nanomaterials and Nanotechnology - ISSN 1847-9804 Roč. 3, č. 14 (2013), s. 1-7
Number of pages	7 s.
Language	eng - English
Country	HR - Croatia
Keywords	Si nanocrystals ; photoluminescence ; doping ; Li-ion batteries
Subject RIV	BM - Solid Matter Physics ; Magnetism
R&D Projects	GBP108/12/G108 GA ČR - Czech Science Foundation (CSF)
Institutional support	FZU-D - RVO:68378271 ; UJF-V - RVO:61389005
UT WOS	000331238000001
EID SCOPUS	84899553180
DOI	10.5772/56925
Annotation	We investigate the optical properties of Li-doped Si nanocrystals (both freestanding and matrix-embedded), which are potentially an important material for the new generation of lithium-ion batteries. Our samples contain 10 – 100 Li atoms per one Si nanocrystal and their lattice is slightly expanded. The photoluminescence (PL) spectra of the S-band of Li-doped Si nanocrystals are blue-shifted by ~30nm compared to the undoped Si nanocrystals and their PL lifetime is correspondingly shorter. The F-band emission is almost unaffected by Li doping. The observed changes in the PL performance are probably caused by Si lattice expansion induced by Li insertion. The reported spectral blue shift is favourable for certain photonic applications.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2014

Number of the records: 1