A novel highly efficient Eu3+-doped germanate red phosphor for accurate latent fingerprint detection and WLED applications; Journal of Luminescence; Vol. 276

A novel highly efficient Eu3+-doped germanate red phosphor for accurate latent fingerprint detection and WLED applications

Dades bibliogràfiques
Parent link:Journal of Luminescence.— .— Amsterdam: Elsevier Science Publishing Company Inc.
Vol. 276.— 2024.— Article number 120878, 9 p.
Altres autors: Qunyang Zhao, Junyang Chen, Xiaolong Jing, Tianchun Lang, Mingsheng Cai, Lingling Peng, Qinping Qiang, Wenbo Chen, Polisadova E. F. Elena Fyodorovna, Bitao Liu
Sumari:Latent fingerprint detection is one of the promising technique in forensic science. Here, a cation replacement strategy in Eu3+-activated K1-yNayGaGeO4 phosphor under excitation by near ultraviolet (NUV) light was proposed for the first time. The corresponding crystal structure, luminescent property, thermal stability, and color purity were systematically investigated. These results indicate that the high photoluminescence (PL) intensity and prominent ultraviolet absorption of the phosphors can contribute to obvious suppression of background interference of substrate and good visualization for the fluorescent LFP images. The optimized K0.65Na0.15GaGeO4:0.2Eu3+ phosphor reveals a great thermal stability and color shift resistance from 300 to 500 K. The Commission International del'Eclairage (CIE) chromaticity coordinates of K0.65Na0.15GaGeO4:0.2Eu3+ were measured to be (0.6637,0.3409), and the color purity was calculated as 91.1 %. The obtained results suggest that the K0.65Na0.15GaGeO4:0.2Eu3+ phosphor exhibits good potential for high resolution and high sensitivity LFP detection and LED application
Текстовый файл
AM_Agreement
Idioma:anglès
Publicat: 2024
Matèries:
Fingerprint detection
Eu3+-activated K1-xNaxGaGeO4
Great color shift resistance
High performance phosphor
электронный ресурс
труды учёных ТПУ
Accés en línia:https://doi.org/10.1016/j.jlumin.2024.120878
Format: Electrònic Capítol de llibre
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=678833

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