5D 0→ 7F 1 and 5D 0→ 7F 2 transition in europium doped halosulphates for mercury-free lamps

S. C. Gedam; S. J. Dhoble; R. B. Pode

doi:10.1016/j.jlumin.2012.04.004

⁵D ₀→ ⁷F ₁ and ⁵D ₀→ ⁷F ₂ transition in europium doped halosulphates for mercury-free lamps

S. C. Gedam
, S. J. Dhoble
, R. B. Pode

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Polycrystalline Na ₃SO ₄F:Eu and NaMgSO ₄F:Eu halosulphate phosphors prepared by a wet chemical method have been studied for its photoluminescence (PL) and thermoluminescence (TL) characteristics. Two well resolved peaks are observed at 593 nm and 614 nm, which are assigned to due to ⁵D ₀→ ⁷F ₁ and ⁵D ₀→ ⁷F ₂ transitions of Eu ³⁺ ions. TL is observed at temperatures between 100 °C and 300 °C. In this paper, we report PL emission spectra of Eu ⁺³ and TL glow curves, which are more sensitive than the standard TLD-CaSO ₄:Dy. The presented phosphors are applicable for the mercury free lamps and solid state lighting devices.

Original language	English
Pages (from-to)	2693-2696
Number of pages	4
Journal	Journal of Luminescence
Volume	132
Issue number	10
DOIs	https://doi.org/10.1016/j.jlumin.2012.04.004
Publication status	Published - Oct 2012

Bibliographical note

Funding Information:
One of us SCG is thankful to University Grant Commission, SJD is thankful to BRNS Govt. of India for financial assistance during the work.

Keywords

Mercury free lamp
Photoluminescence
Thermoluminescence
XRD

Access to Document

10.1016/j.jlumin.2012.04.004

Cite this

@article{09d46c9acd374ca5b3d9456394645458,

title = "5D 0→ 7F 1 and 5D 0→ 7F 2 transition in europium doped halosulphates for mercury-free lamps",

abstract = "Polycrystalline Na 3SO 4F:Eu and NaMgSO 4F:Eu halosulphate phosphors prepared by a wet chemical method have been studied for its photoluminescence (PL) and thermoluminescence (TL) characteristics. Two well resolved peaks are observed at 593 nm and 614 nm, which are assigned to due to 5D 0→ 7F 1 and 5D 0→ 7F 2 transitions of Eu 3+ ions. TL is observed at temperatures between 100 °C and 300 °C. In this paper, we report PL emission spectra of Eu +3 and TL glow curves, which are more sensitive than the standard TLD-CaSO 4:Dy. The presented phosphors are applicable for the mercury free lamps and solid state lighting devices.",

keywords = "Mercury free lamp, Photoluminescence, Thermoluminescence, XRD",

author = "Gedam, \{S. C.\} and Dhoble, \{S. J.\} and Pode, \{R. B.\}",

note = "Funding Information: One of us SCG is thankful to University Grant Commission, SJD is thankful to BRNS Govt. of India for financial assistance during the work. ",

year = "2012",

month = oct,

doi = "10.1016/j.jlumin.2012.04.004",

language = "English",

volume = "132",

pages = "2693--2696",

journal = "Journal of Luminescence",

issn = "0022-2313",

publisher = "Elsevier B.V.",

number = "10",

}

TY - JOUR

T1 - 5D 0→ 7F 1 and 5D 0→ 7F 2 transition in europium doped halosulphates for mercury-free lamps

AU - Gedam, S. C.

AU - Dhoble, S. J.

AU - Pode, R. B.

N1 - Funding Information: One of us SCG is thankful to University Grant Commission, SJD is thankful to BRNS Govt. of India for financial assistance during the work.

PY - 2012/10

Y1 - 2012/10

N2 - Polycrystalline Na 3SO 4F:Eu and NaMgSO 4F:Eu halosulphate phosphors prepared by a wet chemical method have been studied for its photoluminescence (PL) and thermoluminescence (TL) characteristics. Two well resolved peaks are observed at 593 nm and 614 nm, which are assigned to due to 5D 0→ 7F 1 and 5D 0→ 7F 2 transitions of Eu 3+ ions. TL is observed at temperatures between 100 °C and 300 °C. In this paper, we report PL emission spectra of Eu +3 and TL glow curves, which are more sensitive than the standard TLD-CaSO 4:Dy. The presented phosphors are applicable for the mercury free lamps and solid state lighting devices.

AB - Polycrystalline Na 3SO 4F:Eu and NaMgSO 4F:Eu halosulphate phosphors prepared by a wet chemical method have been studied for its photoluminescence (PL) and thermoluminescence (TL) characteristics. Two well resolved peaks are observed at 593 nm and 614 nm, which are assigned to due to 5D 0→ 7F 1 and 5D 0→ 7F 2 transitions of Eu 3+ ions. TL is observed at temperatures between 100 °C and 300 °C. In this paper, we report PL emission spectra of Eu +3 and TL glow curves, which are more sensitive than the standard TLD-CaSO 4:Dy. The presented phosphors are applicable for the mercury free lamps and solid state lighting devices.

KW - Mercury free lamp

KW - Photoluminescence

KW - Thermoluminescence

KW - XRD

UR - https://www.scopus.com/pages/publications/84861935060

U2 - 10.1016/j.jlumin.2012.04.004

DO - 10.1016/j.jlumin.2012.04.004

M3 - Article

AN - SCOPUS:84861935060

SN - 0022-2313

VL - 132

SP - 2693

EP - 2696

JO - Journal of Luminescence

JF - Journal of Luminescence

IS - 10

ER -