Luminescence investigation of novel MgPbAl10O17:Tb3+ green‐emitting phosphor for solid‐state lighting |
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| Authors: | V R Panse N S Kokode S J Dhoble A N Yerpude |
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| Institution: | 1. Department of Applied Physics, NCET, Gadchiroli, India;2. N. H. College, Bramhapuri, Gondwana University, Gadchiroli, India;3. Department of Physics, RTM Nagpur University, Nagpur, India;4. Department of Physics, N. H. College, Bramhapuri, India |
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| Abstract: | In this work, we studied the luminescence properties of Tb3+‐doped MgPbAl10O17 green phosphor. To understand the excitation mechanism and corresponding emission of the prepared phosphor, its structural, morphological and photoluminescence properties were investigated. In general, for green emission, Tb3 is used as an activator and the obtained excitation and emission spectra indicated that this phosphor can be effectively excited by a wavelength of 380 nm, and exhibits bright green emission centered at 545 nm corresponding to the f → f transition of trivalent terbium ions. The chromaticity coordinates were (Cx = 0.263, Cy = 0.723). The impact of Tb3+ concentration on the relative emission intensity was investigated, and the best doping concentration was found to be 2 mol%. This study suggests that Tb3+‐doped MgPbAl10O17 phosphor is a strong candidate for a green component in phosphor‐converted white light‐emitting diodes. Copyright © 2015 John Wiley & Sons, Ltd. |
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| Keywords: | phosphor aluminates photoluminescence XRD SEM |
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