Jiantong Wang
;
Bowen Wang
;
Yuhan Teng
;
Changshuai Gong
;
Xuyan Xue
;
Xuejiao Wang
;
Ji-Guang Li
(National Institute for Materials Science
)
説明:
(abstract)Non-contract optical thermometry shows great advantages for temperature measurement in harsh environments, and it is highly desired to develop novel and high-performance systems. In this work, a novel K3(Y0.88Yb0.10Er0.02)Si2O7 phosphor was synthesized via solid-state reaction, and its up-conversion luminescence and optical thermometric performance were systematically investigated. Under 980 nm
excitation, the K3(Y0.88Yb0.10Er0.02)Si2O7 phosphor showed a strong green UC emission through a three photon process. The phosphor was found well capable of sensing temperature via the multi-modes of fluorescence intensity ratio (FIR) of thermally/non-thermally coupled energy levels and fluorescence lifetime (FL). The maximum absolute (SA) and relative (SR) sensitivities are SA = 156×10-4 K -1 (I531/I555, 298 K) and SR = 1.80% K-1 (I519/I555, 298 K) via the FIR mode, and are SA = 661×10-4 K-1 (548 K) and SR = 9.77% K-1 (298 K) via the FL mode, which are higher than those of most previous studies.
権利情報:
キーワード: Up-conversion, Silicate, Optical thermometry, Rare earth luminescence
刊行年月日: 2023-06-05
出版者: Elsevier BV
掲載誌:
研究助成金:
原稿種別: 著者最終稿 (Accepted manuscript)
MDR DOI:
公開URL: https://doi.org/10.1016/j.ceramint.2023.06.020
関連資料:
その他の識別子:
連絡先:
更新時刻: 2024-01-12 15:08:28 +0900
MDRでの公開時刻: 2025-06-05 08:17:35 +0900
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ファイル名 |
CERI- K3(Y0.88Yb0.10Er0.02)Si2O7.pdf
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application/pdf |
サイズ | 3.51MB | 詳細 |