Preparation and luminescence of green-emitting ZnAl2O4:Mn2+ phosphor thin films

Huang, Ing-Bang; Chang, Yee‐Shin; Chen, Hao-Long; Hwang, Ching Chiang; Jian, Chen-Jhu; Chen, Yu-Shiang; Tsai, Mu‐Tsun

doi:10.1016/j.tsf.2014.02.104

Cited by 33 publications

(14 citation statements)

References 35 publications

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“…According to the specific frequencies of the absorption peaks, the functional groups existing in the samples can be deduced. Peaks at 1633, 656, 552, and 493 cm −1 are present in all samples, and are assigned to the H-O-H bending vibration of adsorbed water19, Al-O symmetric stretching vibration (ν 1 )19202122, Al-O symmetric bending vibration (ν 2 )19202122, and Al-O asymmetric stretching vibration (ν 3 )2122, respectively. For sample S2, the peaks located at 1186 and 1117 cm −1 are attributed to the S=O asymmetric stretching vibration23 and the S-O symmetric stretching vibration2324, respectively.…”

Section: Resultsmentioning

confidence: 94%

A comparative study of ZnAl2O4 nanoparticles synthesized from different aluminum salts for use as fluorescence materials

Wang

Sun

Fang

et al. 2015

Sci Rep

145

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Three ZnAl2O4 samples were prepared via a modified polyacrylamide gel method using a citric acid solution with different aluminum salt starting materials, including AlCl3∙6H2O, Al2(SO4)3∙18H2O, and Al(NO3)3∙9H2O under identical conditions. The influence of different aluminum salts on the morphologies, phase purity, and optical and fluorescence properties of the as-prepared ZnAl2O4 nanoparticles were studied. The experimental results demonstrate that the phase purity, particle size, morphology, and optical and fluorescence properties of ZnAl2O4 nanoparticles can be manipulated by the use of different aluminum salts as starting materials. The energy bandgap (Eg) values of ZnAl2O4 nanoparticles increase with a decrease in particle size. The fluorescence spectra show that a major blue emission band around 400 nm and two weaker side bands located at 410 and 445 nm are observed when the excitation wavelength is 325 nm. The ZnAl2O4 nanoparticles prepared from Al(NO3)3∙9H2O exhibit the largest emission intensity among the three ZnAl2O4 samples, followed in turn by the ZnAl2O4 nanoparticles prepared from Al2(SO4)3∙18H2O and AlCl3∙6H2O. These differences are attributed to combinational changes in Eg and the defect types of the ZnAl2O4 nanoparticles.

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Section: Resultsmentioning

confidence: 94%

A comparative study of ZnAl2O4 nanoparticles synthesized from different aluminum salts for use as fluorescence materials

Wang

Sun

Fang

et al. 2015

Sci Rep

145

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“…[36] The absorption bands between 500 and 1000 cm À1 are related to the stretching and bending vibrations of the Al─O bonds. [37][38][39] The Al 3+ ions located at octahedral sites of AlO 6 and tetrahedral AlO 4 denote the bending modes in the range 750-850 cm À1 .…”

Section: Ultraviolet-visible Spectroscopy Analysismentioning

confidence: 99%

Study on luminescence properties of Ce³⁺ and Eu³⁺ ions in a nanocrystalline hexagonal Zn₄Al₂₂O₃₇ novel system

et al. 2022

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The present communication is strongly focused on the investigation of synthesis, structural and luminescence properties of cerium (Ce 3+ )-and europium (Eu 3+ )activated Zn 4 Al 22 O 37 phosphors. Ce 3+ -and Eu 3+ -doped Zn 4 Al 22 O 37 novel phosphors were prepared using a solution combustion synthesis route. Structural properties were studied using powder X-ray diffraction and high-resolution transverse electron microscopy. The optical properties were studied using ultraviolet-visible light spectroscopy and Fourier transform infrared spectroscopy; luminescence properties were studied using a photoluminescence (PL) technique. The crystal structure of the prepared Zn 4 Al 22 O 37 host and Ce 3+ -and Eu 3+ -activated Zn 4 Al 22 O 37 phosphors was investigated and was found to have a hexagonal structure. The measured PL emission spectrum of the Ce 3+ -doped Zn 4 Al 22 O 37 phosphor showed an intense and broad emission band centred at 421 nm under a 298 nm excitation wavelength. By contrast, the Eu 3+ -doped Zn 4 Al 22 O 37 phosphor exhibited two strong and intense emission bands at approximately 594 nm (orange) and 614 nm (red), which were monitored under 395 nm excitation. The Commission Internationale de l'Eclairage

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“…Different luminescent aluminates have been developed in the form of films. ZnAl 2 O 4 films have been doped with Eu, Tb, or Tm using an ultrasonic spray pyrolysis technique [43,44]; films doped with Mn have been produced using a sol-gel route [45]. Concerning strontium aluminates, a SrAl 2 O 4 polymorph has been obtained by sputtering, ion beam evaporation, ultrasonic spray pyrolysis, and pulsed laser deposition [46][47][48][49][50][51][52].…”

Section: Designing Strategies For Ceramic Luminescent Films By Modified Screen Printing Assisted By Molten Saltsmentioning

confidence: 99%

Aluminate-Based Nanostructured Luminescent Materials: Design of Processing and Functional Properties

et al. 2021

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Interest in luminescent materials has been continuously growing for several decades, looking for the development of new systems with optimized optical properties. Nowadays, research has been focused on the development of materials that satisfy specific market requirements in optoelectronics, radioelectronics, aerospace, bio-sensing, pigment applications, etc. Despite the fact that several efforts have made in the synthesis of organic luminescent materials, their poor stability under light exposure limits their use. Hence, luminescent materials based on inorganic phosphors are considered a mature topic. Within this subject, glass, glass-ceramics and ceramics have had great technological relevance, depending on the final applications. Supposing that luminescent materials are able to withstand high temperatures, have a high strength and, simultaneously, possess high stability, ceramics may be considered promising candidates to demonstrate required performance. In an ongoing effort to find a suitable synthesis method for their processing, some routes to develop nanostructured luminescent materials are addressed in this review paper. Several ceramic families that show luminescence have been intensively studied in the last few decades. Here, we demonstrate the synthesis of particles based on aluminate using the methods of sol-gel or molten salts and the production of thin films using screen printing assisted by a molten salt flux. The goal of this review is to identify potential methods to tailor the micro-nanostructure and to tune both the emission and excitation properties, focusing on emerging strategies that can be easily transferred to an industrial scale. Major challenges, opportunities, and directions of future research are specified.

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Preparation and luminescence of green-emitting ZnAl2O4:Mn2+ phosphor thin films

Cited by 33 publications

References 35 publications

A comparative study of ZnAl2O4 nanoparticles synthesized from different aluminum salts for use as fluorescence materials

A comparative study of ZnAl2O4 nanoparticles synthesized from different aluminum salts for use as fluorescence materials

Study on luminescence properties of Ce³⁺ and Eu³⁺ ions in a nanocrystalline hexagonal Zn₄Al₂₂O₃₇ novel system

Aluminate-Based Nanostructured Luminescent Materials: Design of Processing and Functional Properties

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Preparation and luminescence of green-emitting ZnAl2O4:Mn2+ phosphor thin films

Cited by 33 publications

References 35 publications

A comparative study of ZnAl2O4 nanoparticles synthesized from different aluminum salts for use as fluorescence materials

A comparative study of ZnAl2O4 nanoparticles synthesized from different aluminum salts for use as fluorescence materials

Study on luminescence properties of Ce3+ and Eu3+ ions in a nanocrystalline hexagonal Zn4Al22O37 novel system

Aluminate-Based Nanostructured Luminescent Materials: Design of Processing and Functional Properties

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Study on luminescence properties of Ce³⁺ and Eu³⁺ ions in a nanocrystalline hexagonal Zn₄Al₂₂O₃₇ novel system