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Tunable‐spectrum Mn2+ doped garnet transparent ceramics for high‐color rendering laser lighting.

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Title: Tunable‐spectrum Mn2+ doped garnet transparent ceramics for high‐color rendering laser lighting.
Authors: Cao, Yangfei1,2 (AUTHOR), Han, Tao1 (AUTHOR) danbaiht@126.com, Yang, Jiayao1,2 (AUTHOR), Peng, Lingling1 (AUTHOR), Cao, Shixiu1 (AUTHOR), Liu, Bitao1 (AUTHOR), Tian, Zhongqing2 (AUTHOR), Gao, Wei3,4 (AUTHOR)
Source: International Journal of Applied Ceramic Technology. May/Jun2021, Vol. 18 Issue 3, p716-723. 8p.
Subjects: Transparent ceramics, Electron cloud effect, Garnet, Semiconductor lasers, Energy transfer, Lasers
Abstract: Laser diodes (LDs) packaged with transparent ceramics show the low thermal expansion coefficient and high thermal conductivity, but there is a problem of the low color render index (CRI) owing to the lack of red component in current transparent ceramics. Mn2+ doped garnet transparent ceramics with adjustable color from yellow to red have been prepared via a solid‐state reaction‐vacuum sintering process, which have a high transmittance of 78.6% at 800 nm. Two main emission peaks of this ceramic are monitored at 590 and 749 nm, and the gratifying luminous performance improvement is obtained due to the charge compensation effect, electron cloud expansion effect, and efficient energy transfer. LD system fabricated with the obtained ceramics and blue LD shows a high‐CRI of 80, low correlated color temperature of 4098 K, and good luminous efficiency of 96.91 m/W. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Applied Ceramic Technology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Label: Title
  Group: Ti
  Data: Tunable‐spectrum Mn<superscript>2+</superscript> doped garnet transparent ceramics for high‐color rendering laser lighting.
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  Data: <searchLink fieldCode="AR" term="%22Cao%2C+Yangfei%22">Cao, Yangfei</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Han%2C+Tao%22">Han, Tao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> danbaiht@126.com</i><br /><searchLink fieldCode="AR" term="%22Yang%2C+Jiayao%22">Yang, Jiayao</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Peng%2C+Lingling%22">Peng, Lingling</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cao%2C+Shixiu%22">Cao, Shixiu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Bitao%22">Liu, Bitao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tian%2C+Zhongqing%22">Tian, Zhongqing</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gao%2C+Wei%22">Gao, Wei</searchLink><relatesTo>3,4</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Applied+Ceramic+Technology%22">International Journal of Applied Ceramic Technology</searchLink>. May/Jun2021, Vol. 18 Issue 3, p716-723. 8p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Transparent+ceramics%22">Transparent ceramics</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+cloud+effect%22">Electron cloud effect</searchLink><br /><searchLink fieldCode="DE" term="%22Garnet%22">Garnet</searchLink><br /><searchLink fieldCode="DE" term="%22Semiconductor+lasers%22">Semiconductor lasers</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+transfer%22">Energy transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Lasers%22">Lasers</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Laser diodes (LDs) packaged with transparent ceramics show the low thermal expansion coefficient and high thermal conductivity, but there is a problem of the low color render index (CRI) owing to the lack of red component in current transparent ceramics. Mn2+ doped garnet transparent ceramics with adjustable color from yellow to red have been prepared via a solid‐state reaction‐vacuum sintering process, which have a high transmittance of 78.6% at 800 nm. Two main emission peaks of this ceramic are monitored at 590 and 749 nm, and the gratifying luminous performance improvement is obtained due to the charge compensation effect, electron cloud expansion effect, and efficient energy transfer. LD system fabricated with the obtained ceramics and blue LD shows a high‐CRI of 80, low correlated color temperature of 4098 K, and good luminous efficiency of 96.91 m/W. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Applied Ceramic Technology is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1111/ijac.13685
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        Text: English
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        PageCount: 8
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      – SubjectFull: Transparent ceramics
        Type: general
      – SubjectFull: Electron cloud effect
        Type: general
      – SubjectFull: Garnet
        Type: general
      – SubjectFull: Semiconductor lasers
        Type: general
      – SubjectFull: Energy transfer
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      – SubjectFull: Lasers
        Type: general
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      – TitleFull: Tunable‐spectrum Mn2+ doped garnet transparent ceramics for high‐color rendering laser lighting.
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            NameFull: Cao, Yangfei
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            NameFull: Cao, Shixiu
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            – D: 01
              M: 05
              Text: May/Jun2021
              Type: published
              Y: 2021
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