Phosphorescent luminescence of pure magnesium oxide transparent ceramics produced by spark plasma sintering

Shingo Wakahara; Takayuki Yanagida; Yuui Yokota; Yutaka Fujimoto; Valery Chani; Makoto Sugiyama; Yoshisuke Futami; Akira Yoshikawa

doi:10.1016/j.optmat.2012.10.028

Phosphorescent luminescence of pure magnesium oxide transparent ceramics produced by spark plasma sintering

Shingo Wakahara, Takayuki Yanagida, Yuui Yokota, Yutaka Fujimoto, Valery Chani, Makoto Sugiyama, Yoshisuke Futami, Akira Yoshikawa

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

19 Citations (Scopus)

Abstract

Magnesium oxide (MgO) ceramics fabricated by Spark Plasma Sintering (SPS) method at different sintering temperatures were studied to evaluate optical properties including phosphorescent emission. All the samples were visually transparent. Especially, the ceramic sintered at 1900 °C demonstrated high transparency up to 60-70% in wavelengths range exceeding 300 nm. The phosphorescent emission originated from oxygen vacancies (F⁺ centers) at approximately 390 nm was observed in all the specimens. All the ceramics exhibited similar phosphorescent decay times consisting of three components of 3, 12 and 75 s. The phosphorescence was observed with naked eyes in a dark room after removing the excitation source.

Original language	English
Pages (from-to)	558-562
Number of pages	5
Journal	Optical Materials
Volume	35
Issue number	3
DOIs	https://doi.org/10.1016/j.optmat.2012.10.028
Publication status	Published - 2013 Jan

Keywords

Phosphorescent emission
SPS
Transparent ceramics

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Computer Science(all)
Atomic and Molecular Physics, and Optics
Spectroscopy
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Electrical and Electronic Engineering

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10.1016/j.optmat.2012.10.028

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title = "Phosphorescent luminescence of pure magnesium oxide transparent ceramics produced by spark plasma sintering",

abstract = "Magnesium oxide (MgO) ceramics fabricated by Spark Plasma Sintering (SPS) method at different sintering temperatures were studied to evaluate optical properties including phosphorescent emission. All the samples were visually transparent. Especially, the ceramic sintered at 1900 °C demonstrated high transparency up to 60-70% in wavelengths range exceeding 300 nm. The phosphorescent emission originated from oxygen vacancies (F+ centers) at approximately 390 nm was observed in all the specimens. All the ceramics exhibited similar phosphorescent decay times consisting of three components of 3, 12 and 75 s. The phosphorescence was observed with naked eyes in a dark room after removing the excitation source.",

keywords = "Phosphorescent emission, SPS, Transparent ceramics",

author = "Shingo Wakahara and Takayuki Yanagida and Yuui Yokota and Yutaka Fujimoto and Valery Chani and Makoto Sugiyama and Yoshisuke Futami and Akira Yoshikawa",

note = "Funding Information: This work was mainly supported by JST Sentan and partially by a Grant in Aid for Young Scientists (B)- 15686001 , (A)- 23686135 , and Challenging Exploratory Research-23656584 from the Ministry of Education, Culture, Sports, Science and Technology of the Japanese government (MEXT). Partial assistance from the Yazaki Memorial Foundation for Science and Technology, Japan Science Society, Sumitomo Foundation, and Iketani Science and Technology Foundation are also gratefully acknowledged.",

year = "2013",

month = jan,

doi = "10.1016/j.optmat.2012.10.028",

language = "English",

volume = "35",

pages = "558--562",

journal = "Optical Materials",

issn = "0925-3467",

publisher = "Elsevier",

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TY - JOUR

T1 - Phosphorescent luminescence of pure magnesium oxide transparent ceramics produced by spark plasma sintering

AU - Wakahara, Shingo

AU - Yanagida, Takayuki

AU - Yokota, Yuui

AU - Fujimoto, Yutaka

AU - Chani, Valery

AU - Sugiyama, Makoto

AU - Futami, Yoshisuke

AU - Yoshikawa, Akira

N1 - Funding Information: This work was mainly supported by JST Sentan and partially by a Grant in Aid for Young Scientists (B)- 15686001 , (A)- 23686135 , and Challenging Exploratory Research-23656584 from the Ministry of Education, Culture, Sports, Science and Technology of the Japanese government (MEXT). Partial assistance from the Yazaki Memorial Foundation for Science and Technology, Japan Science Society, Sumitomo Foundation, and Iketani Science and Technology Foundation are also gratefully acknowledged.

PY - 2013/1

Y1 - 2013/1

N2 - Magnesium oxide (MgO) ceramics fabricated by Spark Plasma Sintering (SPS) method at different sintering temperatures were studied to evaluate optical properties including phosphorescent emission. All the samples were visually transparent. Especially, the ceramic sintered at 1900 °C demonstrated high transparency up to 60-70% in wavelengths range exceeding 300 nm. The phosphorescent emission originated from oxygen vacancies (F+ centers) at approximately 390 nm was observed in all the specimens. All the ceramics exhibited similar phosphorescent decay times consisting of three components of 3, 12 and 75 s. The phosphorescence was observed with naked eyes in a dark room after removing the excitation source.

AB - Magnesium oxide (MgO) ceramics fabricated by Spark Plasma Sintering (SPS) method at different sintering temperatures were studied to evaluate optical properties including phosphorescent emission. All the samples were visually transparent. Especially, the ceramic sintered at 1900 °C demonstrated high transparency up to 60-70% in wavelengths range exceeding 300 nm. The phosphorescent emission originated from oxygen vacancies (F+ centers) at approximately 390 nm was observed in all the specimens. All the ceramics exhibited similar phosphorescent decay times consisting of three components of 3, 12 and 75 s. The phosphorescence was observed with naked eyes in a dark room after removing the excitation source.

KW - Phosphorescent emission

KW - SPS

KW - Transparent ceramics

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DO - 10.1016/j.optmat.2012.10.028

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SN - 0925-3467

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SP - 558

EP - 562

JO - Optical Materials

JF - Optical Materials

IS - 3

ER -

Phosphorescent luminescence of pure magnesium oxide transparent ceramics produced by spark plasma sintering

Abstract

Keywords

ASJC Scopus subject areas

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