Radio-photoluminescence properties of silver-doped cesium chloride transparent ceramics
Radio-photoluminescence properties of silver-doped cesium chloride transparent ceramics
复制标题
银掺杂氯化铯透明陶瓷的放射光致发光性能
DOI:
10.1016/j.jlumin.2021.118099
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发表时间:
2021
影响因子:
3.6
通讯作者:
Yanagida Takayuki
中科院分区:
文献类型:
--
作者:
Kimura Hiromi;Okada Go;Kato Takumi;Nakauchi Daisuke;Kawaguchi Noriaki;Yanagida Takayuki
We discovered and reported that 0.01, 0.1 and 1% Ag-doped CsCl transparent ceramics by spark plasma sintering technique showed radiophotoluminescence (RPL). All the samples showed high transmittance (50–70%) in the visible range. Under 340 nm ± 40 nm excitation, the PL emission was observed around 450 nm before X-ray irradiation while PL emission peaks appeared around 450 and 610 nm after X-ray irradiation. Judged from excitation and emission spectra and lifetimes, the origins of emission bands around 450 and 610 nm would be Ag0/Ag2+and Ag2+centers, respectively. The RPL signal was confirmed to be stable over 3 min under an excitation of 340 nm ± 40 nm. Among the synthesized samples, the lowest detectable sensitivity for the 1% Ag-doped CsCl samples was 3 mGy for the emission range of 400–550 nm.
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