TL and EPR characteristics of SrAl2O4 phosphor prepared by solid‐state reaction method

M, Edwar A. Canaza; Cano, Nilo F.; Mosqueirara-Yauri, Jessica; Rao, T.K. Gundu; Aynaya-Cahui, Sandra C.; Gonsalez-Vasquez, Amador J.; Gomes, Monise B.; Chubaci, J.F.D.; Watanabe, Shigueo; Ayala-Arenas, Jorge S.

doi:10.1016/j.jlumin.2021.118585

Cited by 6 publications

(2 citation statements)

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“…In particular, the band gap values of MAl 2 O 4 (M = Mg, Sr, and Ba) are close to 4, making it difficult to respond to visible light. Traditional methods such as the solid state reaction method, (Ganesh et al, 2004;Canaza-Mamani et al, 2021), the sol-gel method, (Habibi et al, 2017;Salehabadi et al, 2017), the solvothermal method, (Zhu et al, 2012), the hydrothermal method (Sera et al, 2021), and the coprecipitation method (Zawrah et al, 2007) are difficult to make its have special defect structure. In order to make a single component aluminate photocatalytic activity, special preparation methods must be used to enhance the electron and hole pairs transfer and separation ability.…”

Section: Synthesis Of Mal 2 O 4 (M = Mg Sr and Ba) Photocatalystsmentioning

confidence: 99%

Progress in Synthesis and Photocatalytic Activity of MAl2O4(M=Mg, Sr, Ba) Based Photocatalysts

et al. 2022

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Photocatalysis is regarded as a green technology to degrade organic dyes driven by light energy. The selection of photocatalyst restricts the development of photocatalytic technology. Aluminate is a kind of potential broad-gap semiconductor photocatalyst and also an excellent phosphor substrate materials. The physical and chemical properties of aluminate are strongly dependent on the preparation method. Insight into the influence of synthesis methods on photocatalytic activity of aluminate based photocatalysts is helpful for the development of novel aluminate based photocatalysts. In this paper, the typical synthesis methods of aluminate photocatalysts, ion-doped aluminate based photocatalysts and heterojunction type aluminate photocatalysts, and their photocatalytic activities are reviewed. Based on the energy band theory, the photocatalytic mechanisms of single component aluminate photocatalyst, ion-doped aluminate based photocatalyst, and heterojunction type aluminate photocatalyst were reviewed. The future development of aluminate based photocatalyst will give priority to the salinization of aluminate modified by silver and other metal particles and the photocatalytic application of activated ion modified aluminate based phosphors.

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Section: Synthesis Of Mal 2 O 4 (M = Mg Sr and Ba) Photocatalystsmentioning

confidence: 99%

Progress in Synthesis and Photocatalytic Activity of MAl2O4(M=Mg, Sr, Ba) Based Photocatalysts

et al. 2022

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“…[35,36] TL or TSL has been widely applied for measuring deep and relatively shallow traps in optical and photonic materials [37,38] and has been quite useful for optical studies of single crystals, films, phosphors, and transparent ceramics for lasers, scintillators, and solid-state lighting applications and more. [9,[39][40][41][42][43][44][45][46][47][48][49][50][51][52][53] However, its applications in semiconductors has not been realized until recently [5,8,54] and are still very limited. The goal of this article is to explain the basics of TL, inform the reader about its capability as a great tool for measuring the energy levels of donors and acceptors in semiconductors, and bring the attention to the development of cryogenic thermally stimulated photoemission spectroscopy (C-TSPS) [55] which extends TL or thermally stimulated emission measurements to cover the entire range of shallow and deep levels in bandgap materials.…”

Section: Introductionmentioning

confidence: 99%

Advanced Thermoluminescence Spectroscopy as a Research Tool for Semiconductor and Photonic Materials: A Review and Perspective

Selim

2023

Physica Status Solidi (a)

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Thermoluminescence (TL) or thermally stimulated luminescence (TSL) spectroscopy is based on liberating charge carriers from traps in the bandgap by providing enough thermal energy to overcome the potential barrier of the traps. It provides a powerful tool to measure the positions of the localized states/traps in the bandgap. Despite that, its applications in semiconductors are very limited. Herein, the basics of TL spectroscopy and the recent advances in the technique with focus on cryogenic thermally stimulated photoemission spectroscopy (C‐TSPS) which extends TL measurements to cryogenic regime and allows the detection of very low concentrations of shallow and deep localized states is discussed. One goal herein is to introduce the reader to the use of TL and C‐TSPS in the characterization of semiconductors, explaining how it can be applied and demonstrating its advantages as a powerful tool for measuring shallow donor/acceptor ionization energies in semiconductors and as a method for characterizing compensating defects. The article also discusses interesting potential applications of C‐TSPS in new research areas such as corrosion and formation of oxide layers on metal surfaces.

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Thermoluminescence characteristics of monoclinic SrAl2O4 phosphor prepared by combustion method

Thejavathi,

Lokesha,

Nagabhushana

et al. 2024

Ceramics International

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TL and EPR characteristics of SrAl2O4 phosphor prepared by solid‐state reaction method

Cited by 6 publications

References 30 publications

Progress in Synthesis and Photocatalytic Activity of MAl2O4(M=Mg, Sr, Ba) Based Photocatalysts

Progress in Synthesis and Photocatalytic Activity of MAl2O4(M=Mg, Sr, Ba) Based Photocatalysts

Advanced Thermoluminescence Spectroscopy as a Research Tool for Semiconductor and Photonic Materials: A Review and Perspective

Thermoluminescence characteristics of monoclinic SrAl2O4 phosphor prepared by combustion method

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