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Near infrared photoluminescence of the hydrogenated amorphous silicon thin films with in-situ embedded silicon nanoparticles

SYSNO ASEP	0474916
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Near infrared photoluminescence of the hydrogenated amorphous silicon thin films with in-situ embedded silicon nanoparticles
Author(s)	Remeš, Zdeněk (FZU-D)_{RID, ORCID} Stuchlík, Jiří (FZU-D)_{RID, ORCID} Purkrt, Adam (FZU-D)_RID Ledinský, Martin (FZU-D)_{RID, ORCID, SAI} Kupčík, Jaroslav (UACH-T)_{SAI, RID, ORCID}
Number of authors	5
Source Title	Ceramics - Silikáty. - : University of Chemistry and Technology Prague - ISSN 0862-5468 Roč. 61, č. 2 (2017), s. 136-140
Number of pages	5 s.
Language	eng - English
Country	CZ - Czech Republic
Keywords	amorphous silicon ; chemical vapor deposition ; photothermal deflection spectroscopy
Subject RIV	BM - Solid Matter Physics ; Magnetism
OECD category	Condensed matter physics (including formerly solid state physics, supercond.)
Subject RIV - cooperation	Institute of Inorganic Chemistry - Inorganic Chemistry
R&D Projects	GC16-10429J GA ČR - Czech Science Foundation (CSF)
Institutional support	FZU-D - RVO:68378271 ; UACH-T - RVO:61388980
UT WOS	000400721800008
EID SCOPUS	85018484844
DOI	10.13168/cs.2017.0008
Annotation	The intrinsic hydrogenated silicone layers with embedded silicon nanoparticles were grown in-situ at 250°C on glass substrates by the radio frequency plasma enhanced chemical vapor deposition (CVD) from silane highly diluted in hydrogen. The changes in the optical absorption coefficient were detected by the photothemal deflection spectroscopy (PDS). The transition from amorphous to crystalline phase for samples deposited at 5 6 % silane concentration correlates to the crystalline volume fraction about 50 % as detected by Raman spectroscopy and the high resolution transmission electron microscopy (HRTEM). The room temperature photo-luminescence increases significantly with increased crystallinity volume fraction but diminishes abruptly when crystallinity volume fraction exceeds above 80 %. The photoluminescence intensity strongly correlates with the presence of isolated silicon nanoparticles in the mixed amorphous and crystalline phase.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2018

Number of the records: 1