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Photoluminescence properties of Sr2bo3cl:Dy3+ phosphor for solid state lighting
Accepted Manuscript Title: Photoluminescence Properties Of Sr2 bo3 cl:Dy3+ Phosphor For Solid State Lighting Author: V.R. Panse A.N. Yerpude N.S. Kokode S.J. Dhoble PII: DOI: Reference:
S0030-4026(16)30095-X http://dx.doi.org/doi:10.1016/j.ijleo.2016.02.031 IJLEO 57345
To appear in: Received date: Accepted date:
8-1-2016 10-2-2016
Please cite this article as: V.R.Panse, A.N. Yerpude, S.J. Dhoble, PHOTOLUMINESCENCE PROPERTIES OF Sr2 BO3 Cl:Dy3+ PHOSPHOR FOR SOLID STATE LIGHTING, Optik - International Journal for Light and Electron Optics (2016), http://dx.doi.org/10.1016/j.ijleo.2016.02.031 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.
PHOTOLUMINESCENCE PROPERTIES OF Sr2BO3Cl:Dy3+ PHOSPHOR FOR SOLID STATE LIGHTING V.R.Panse1, A.N. Yerpude2, N.S.Kokode3*, S. J. Dhoble4 1
Department of Applied Physics, NCET Gadchiroli-442605.India Department of Physics, N.H.College, Bramhapuri, -441206, India 3* N.H.College, Bramhapuri, Dist- Chandrapur -441206, India 4 Department of Physics, RTM Nagpur University, Nagpur -440033, India Corresponding author:- [email protected]
ip t
2
ABSTRACT
cr
In this paper we report the synthesis of Sr2BO3Cl:Dy3+ phosphor prepared by modified solid state method. X-ray powder diffraction (XRD) and
us
Photoluminescence (PL) were carried out. The absorption band located at 351 nm is a main excitation peak matching with the emission of nearultraviolet light (340–400 nm). The emission spectrum consists mainly of
an
two groups of line, which are situated around 485 nm (blue emission) and 576 nm (yellow emission). Thèse line can be assigned to the transitions F9/26H15/2 and 4F9/26H13/2, respectively. The concentration quenching
M
4
effect for Dy3+ was found at the optimum doping concentration of 1 mole%. The prepared phosphor may be usefull for eco-friendly lighting technology. 1.
Introduction
ed
Keywords:- photoluminescence, phosphor, solid state lighting
pt
Development of new rare earth activated eco friendly phosphors for a smart lighting industry with high luminous efficiency, environmental protection ,
Ac ce
low cast and longer lifetime constitutes an important challenge. Research for new materials for the development of ecofriednly phosphors, has received much attention during the last decade. In recent years rare earth doped borate based inorganic phosphors material have attracted more attention for
Page 1 of 4
their many practical applications for solid state lighting technology , white LEDs , lighting technology, traffic signals and many other fields related to lighting industry. White light emitting diode is considered to be the next generation of lighting industry due to their long lifetimes, good reability and safety, saving energy
and environmental friendly features [1-4]. In the
present work Sr2BO3Cl:Dy3+ phosphor was prepared by modified solid state
2.
ip t
method. Experimental Procedure
cr
The Dy3+ doped Sr2BO3Cl phosphors with varying concentrations was
us
prepared by modified solid state method. The detailed synthesis procedure is
3.
Results and Discussion
3.1.
X-Ray Diffraction
an
same as we have already reported [5].
M
The phase purity of the prepared phosphor by modified soid state method was confirmed by powder XRD measurement. XRD pattern of the prepared Sr2BO3Cl phosphor was well matched with the reported XRD pattern [5]. Photoluminescence properties of Sr2BO3Cl:Dy3+ phosphor
ed
3.2.
The excitation spectrum of the Sr2BO3Cl:Dy3+ phosphor as shown in figure
pt
1. The highest absorption intensity is observed at 351 nm, which may be useful for excitation of ecofriendly based solid-state lighting technology.
Ac ce
Emission spectrum of the phosphor is shown in the figure 2, keeping excitation wavelength constant at 351 nm. The emission spectrum consists of two bands located at blue (485 nm) and yellow (576 nm) region due to Dy3+ ions.
Blue emission peak observed at 485 nm which is due to
Page 2 of 4
transition 4
4
F9/26H15/2 and yellow peak observed due to transition
F9/26H13/2 [6,7]. Figure 3. clearly shows the highest emission intensity is
observed at 1 mole% of Dy3+ ions and after 1 mole% emission intensity
an
us
cr
ip t
decreased due to concentration quenching effect [8,9].
Ac ce
pt
ed
M
Fig.1. PL excitation spectrum of Sr2BO3Cl:Dy3+ when monitored at 576 nm.
Fig.2. PL emission spectra of Sr2BO3Cl:Dy3+ when excited at 351 nm.
Page 3 of 4
ip t
cr
Fig.3. Effect of concentration of doped Dy3+ on relative emission intensity at 576 nm for Sr2BO3Cl phosphor.
us
4. Conclusions
Sr2BO3Cl: Dy3+ phosphors have been prepared by modified solid state
an
method. The PL emission shows two emission bands centered at 485 nm (blue) and 576nm (yellow). Concentration quenching effect is observed at 1mole % of Dy3+ ions. The photoluminescence results suggest that the
M
prepared phosphor could find applications in solid state lighting.
ed
References
Ac ce
pt
[1] S. Ye, F. Xiao, Y.X .Pan, Y.Y. Ma, Q.Y. Zhang. Materials Science and Engineering 71(2010)1. [2] Z.H. Ju, R.P Wei, X.P Gao, W.S Liu, C.R Pang. Optical Materials 33(2011)909 [3] Y.D Huh, J.H Shim, Y.H Kim, Y.R Do. J Electrochem Soc 150(2003)H57. [4] W. Zhoua,, X. Ma, M.Zhang, Yi Luo, Z.Xia, Ceramics International 41 (2015) 7140 [5] V.R. Panse, N.S.Kokode, S.J.Dhoble, Adv. Mat. Lett. 2014, 5(10), 604. [6] A.N.Yerpude, S.J.Dhoble, B.S.Reddy, Physica B 454(2014)126. [7] A.N.Yerpude, S.J.Dhoble, Optik 124 (2013) 3567. [8] A.N.Yerpude, S.J.Dhoble, J. Lumin. 132 (2012) 1781. [9] A.N.Yerpude, S.J.Dhoble, J. Lumin. 132 (2012) 2975.
Page 4 of 4
S0030-4026(16)30095-X http://dx.doi.org/doi:10.1016/j.ijleo.2016.02.031 IJLEO 57345
To appear in: Received date: Accepted date:
8-1-2016 10-2-2016
Please cite this article as: V.R.Panse, A.N. Yerpude, S.J. Dhoble, PHOTOLUMINESCENCE PROPERTIES OF Sr2 BO3 Cl:Dy3+ PHOSPHOR FOR SOLID STATE LIGHTING, Optik - International Journal for Light and Electron Optics (2016), http://dx.doi.org/10.1016/j.ijleo.2016.02.031 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.
PHOTOLUMINESCENCE PROPERTIES OF Sr2BO3Cl:Dy3+ PHOSPHOR FOR SOLID STATE LIGHTING V.R.Panse1, A.N. Yerpude2, N.S.Kokode3*, S. J. Dhoble4 1
Department of Applied Physics, NCET Gadchiroli-442605.India Department of Physics, N.H.College, Bramhapuri, -441206, India 3* N.H.College, Bramhapuri, Dist- Chandrapur -441206, India 4 Department of Physics, RTM Nagpur University, Nagpur -440033, India Corresponding author:- [email protected]
ip t
2
ABSTRACT
cr
In this paper we report the synthesis of Sr2BO3Cl:Dy3+ phosphor prepared by modified solid state method. X-ray powder diffraction (XRD) and
us
Photoluminescence (PL) were carried out. The absorption band located at 351 nm is a main excitation peak matching with the emission of nearultraviolet light (340–400 nm). The emission spectrum consists mainly of
an
two groups of line, which are situated around 485 nm (blue emission) and 576 nm (yellow emission). Thèse line can be assigned to the transitions F9/26H15/2 and 4F9/26H13/2, respectively. The concentration quenching
M
4
effect for Dy3+ was found at the optimum doping concentration of 1 mole%. The prepared phosphor may be usefull for eco-friendly lighting technology. 1.
Introduction
ed
Keywords:- photoluminescence, phosphor, solid state lighting
pt
Development of new rare earth activated eco friendly phosphors for a smart lighting industry with high luminous efficiency, environmental protection ,
Ac ce
low cast and longer lifetime constitutes an important challenge. Research for new materials for the development of ecofriednly phosphors, has received much attention during the last decade. In recent years rare earth doped borate based inorganic phosphors material have attracted more attention for
Page 1 of 4
their many practical applications for solid state lighting technology , white LEDs , lighting technology, traffic signals and many other fields related to lighting industry. White light emitting diode is considered to be the next generation of lighting industry due to their long lifetimes, good reability and safety, saving energy
and environmental friendly features [1-4]. In the
present work Sr2BO3Cl:Dy3+ phosphor was prepared by modified solid state
2.
ip t
method. Experimental Procedure
cr
The Dy3+ doped Sr2BO3Cl phosphors with varying concentrations was
us
prepared by modified solid state method. The detailed synthesis procedure is
3.
Results and Discussion
3.1.
X-Ray Diffraction
an
same as we have already reported [5].
M
The phase purity of the prepared phosphor by modified soid state method was confirmed by powder XRD measurement. XRD pattern of the prepared Sr2BO3Cl phosphor was well matched with the reported XRD pattern [5]. Photoluminescence properties of Sr2BO3Cl:Dy3+ phosphor
ed
3.2.
The excitation spectrum of the Sr2BO3Cl:Dy3+ phosphor as shown in figure
pt
1. The highest absorption intensity is observed at 351 nm, which may be useful for excitation of ecofriendly based solid-state lighting technology.
Ac ce
Emission spectrum of the phosphor is shown in the figure 2, keeping excitation wavelength constant at 351 nm. The emission spectrum consists of two bands located at blue (485 nm) and yellow (576 nm) region due to Dy3+ ions.
Blue emission peak observed at 485 nm which is due to
Page 2 of 4
transition 4
4
F9/26H15/2 and yellow peak observed due to transition
F9/26H13/2 [6,7]. Figure 3. clearly shows the highest emission intensity is
observed at 1 mole% of Dy3+ ions and after 1 mole% emission intensity
an
us
cr
ip t
decreased due to concentration quenching effect [8,9].
Ac ce
pt
ed
M
Fig.1. PL excitation spectrum of Sr2BO3Cl:Dy3+ when monitored at 576 nm.
Fig.2. PL emission spectra of Sr2BO3Cl:Dy3+ when excited at 351 nm.
Page 3 of 4
ip t
cr
Fig.3. Effect of concentration of doped Dy3+ on relative emission intensity at 576 nm for Sr2BO3Cl phosphor.
us
4. Conclusions
Sr2BO3Cl: Dy3+ phosphors have been prepared by modified solid state
an
method. The PL emission shows two emission bands centered at 485 nm (blue) and 576nm (yellow). Concentration quenching effect is observed at 1mole % of Dy3+ ions. The photoluminescence results suggest that the
M
prepared phosphor could find applications in solid state lighting.
ed
References
Ac ce
pt
[1] S. Ye, F. Xiao, Y.X .Pan, Y.Y. Ma, Q.Y. Zhang. Materials Science and Engineering 71(2010)1. [2] Z.H. Ju, R.P Wei, X.P Gao, W.S Liu, C.R Pang. Optical Materials 33(2011)909 [3] Y.D Huh, J.H Shim, Y.H Kim, Y.R Do. J Electrochem Soc 150(2003)H57. [4] W. Zhoua,, X. Ma, M.Zhang, Yi Luo, Z.Xia, Ceramics International 41 (2015) 7140 [5] V.R. Panse, N.S.Kokode, S.J.Dhoble, Adv. Mat. Lett. 2014, 5(10), 604. [6] A.N.Yerpude, S.J.Dhoble, B.S.Reddy, Physica B 454(2014)126. [7] A.N.Yerpude, S.J.Dhoble, Optik 124 (2013) 3567. [8] A.N.Yerpude, S.J.Dhoble, J. Lumin. 132 (2012) 1781. [9] A.N.Yerpude, S.J.Dhoble, J. Lumin. 132 (2012) 2975.
Page 4 of 4