# Structural characterization and luminescence properties of bluish-green-emitting SrCaMgSi2O7:Eu2+, Dy3+ phosphor by solid-state reaction method

Structural characterization and luminescence properties of bluish-green-emitting... An excellent long afterglow SrCaMgSi2O7:Eu2+, Dy3+ phosphor was prepared by the high-temperature solid-state reaction method. The phase structure of prepared phosphor was an akermanite-type structure, which belongs to the tetragonal crystallography with space group $${\text{P}}\overline{{{\text{42}}}} _{{\text{1}}} {\text{m}}$$ P 42 ¯ 1 m . Chemical composition of the sintered SrCaMgSi2O7:Eu2+, Dy3+ phosphor was confirmed by EDX. Under ultraviolet excitation, the SrCaMgSi2O7:Eu2+, Dy3+ phosphor would emit bluish-green (cyan) light, belonging to the broad emission band ascribed to the 4f65d1 → 4f7 transition. Investigation of afterglow properties show that SrCaMgSi2O7:Eu2+, Dy3+ phosphor held a fast and slow decay process. The peak of ML intensity increases linearly with increasing impact velocity of the moving piston. The CIE chromaticity diagram and ML spectra show a similar spectrum as PL spectra, which indicated that ML is emitted from the same emitting center of Eu2+ ions. Thus the present investigation indicates that the piezoelectrically induced de-trapping model is responsible to produce ML in prepared SrCaMgSi2O7:Eu2+, Dy3+ phosphor. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

# Structural characterization and luminescence properties of bluish-green-emitting SrCaMgSi2O7:Eu2+, Dy3+ phosphor by solid-state reaction method

, Volume 41 (11) – Feb 24, 2015
18 pages

/lp/springer_journal/structural-characterization-and-luminescence-properties-of-bluish-85X7DThpo9
Publisher
Springer Journals
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-015-1929-1
Publisher site
See Article on Publisher Site

### Abstract

An excellent long afterglow SrCaMgSi2O7:Eu2+, Dy3+ phosphor was prepared by the high-temperature solid-state reaction method. The phase structure of prepared phosphor was an akermanite-type structure, which belongs to the tetragonal crystallography with space group $${\text{P}}\overline{{{\text{42}}}} _{{\text{1}}} {\text{m}}$$ P 42 ¯ 1 m . Chemical composition of the sintered SrCaMgSi2O7:Eu2+, Dy3+ phosphor was confirmed by EDX. Under ultraviolet excitation, the SrCaMgSi2O7:Eu2+, Dy3+ phosphor would emit bluish-green (cyan) light, belonging to the broad emission band ascribed to the 4f65d1 → 4f7 transition. Investigation of afterglow properties show that SrCaMgSi2O7:Eu2+, Dy3+ phosphor held a fast and slow decay process. The peak of ML intensity increases linearly with increasing impact velocity of the moving piston. The CIE chromaticity diagram and ML spectra show a similar spectrum as PL spectra, which indicated that ML is emitted from the same emitting center of Eu2+ ions. Thus the present investigation indicates that the piezoelectrically induced de-trapping model is responsible to produce ML in prepared SrCaMgSi2O7:Eu2+, Dy3+ phosphor.

### Journal

Research on Chemical IntermediatesSpringer Journals

Published: Feb 24, 2015

## You’re reading a free preview. Subscribe to read the entire article.

### DeepDyve is your personal research library

It’s your single place to instantly
that matters to you.

over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month ### Explore the DeepDyve Library ### Search Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly ### Organize Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place. ### Access Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals. ### Your journals are on DeepDyve Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more. All the latest content is available, no embargo periods. DeepDyve ### Freelancer DeepDyve ### Pro Price FREE$49/month
\$360/year

Save searches from
PubMed

Create lists to

Export lists, citations