首页|Study and applicability of photoluminescence properties of Cr4+: LiInGeO4

Study and applicability of photoluminescence properties of Cr4+: LiInGeO4

扫码查看
原文链接
  • NSTL
  • Elsevier
This paper reports a series of Cr4+: LiInGeO4, based on a high-temperature solid-phase synthesis method and the effect of LiInGeO4-doped Cr4+ ions on the spectral properties and luminescence colors in the near-infrared re-gion. Under 808 nm excitation, the emission spectra showed a broad band at 1000-1500 nm, with a maximum peak occurring at 1218 nm due to the T-3(2)& RARR;(3)A(2) transition of Cr4+ ions. The lifetime decreases with the increasing amount of Cr4+ ions, from 8.30035 mu s to 6.656 mu s. The chromium's chemical composition and valence state in LiInGeO4 were analyzed by x-ray photoelectron spectroscopy. The results showed that the chromium in LiInGeO4 was tetravalent, and no trivalent chromium was found. The results show that LiInGeO4 crystals can have promising applicability in anti-counterfeiting due to the possibility of both up-conversion and down-conversion glowing.

Photoluminescence spectrumEnergy transferSolid-phase methodOptical performanceTRANSPARENT YAG CERAMICSOPTICAL-PROPERTIESCONVERSION EFFICIENCYCATION ADDITIVESENERGY-TRANSFERSINTERING AIDSWHITE EMISSIONPERFORMANCEIONS

Wang, Dongmei、Leng, Zhuang、Jiang, Xiliang、Wang, Xinyu、Zhang, Tianqing、Shi, Xueming、Zhang, Xu、Zeng, Fanming、Li, Chun、Su, Zhongmin、Lin, Hai、Liu, Lina、Zhou, Yanyan、Zhang, Xuejian、Liu, Huisheng、Li, Yongtao、Yang, Weiling

展开 >

Changchun Univ Sci & Technol

Jilin Jianzhu Univ

2022

10.1016/j.physb.2021.413312

Physica

Physica

ISSN：0921-4526
年,卷(期)：2022.628
  • 1
  • 18