Print Email Facebook Twitter Wide Range X-Ray to Infrared Photon Detection and Energy Storage in LiTaO3:Bi3+,Dy3+ Perovskite Title Wide Range X-Ray to Infrared Photon Detection and Energy Storage in LiTaO3:Bi3+,Dy3+ Perovskite Author Lyu, Tianshuai (Huaqiao University, Xiamen) Dorenbos, P. (TU Delft RST/Luminescence Materials) Li, Canhua (Huaqiao University, Xiamen) Wei, Zhanhua (Huaqiao University, Xiamen) Date 2022 Abstract It is challenging to obtain a material that can detect photons ranging from X-rays to infrared light. Such materials have promising use to develop advanced applications like in information storage, anticounterfeiting, or X-ray imaging. This article reports on such a material; LiTaO3:xBi3+,yDy3+ perovskite phosphor. Experimental spectroscopy, thermoluminescence, and vacuum referred binding energy diagram (VRBE) construction are combined to study the trapping processes of charge carriers. The VRBEs in the ground or excited states of Bi3+ and Bi2+ are discussed. Bi3+ emerges to act as a ≈1.3 eV deep hole capturing center and it may possibly also act as a 0.80 ± 0.5 eV deep electron trapping center. A linear relation between the amount of stored charge carriers and a photochromic phenomenon both induced by X-rays or 254 nm UV-light charging appears. The stored charge carriers in LiTaO3:xBi3+,yDy3+ are removed by heating or with an optically stimulated process with 365 nm UV light to 850 nm infrared laser. More than 3 or 40 h of Bi3+ and Dy3+ based white afterglow is measurable in LiTaO3:0.005Bi3+,0.004Dy3+ after exposure to X-rays or 254 nm UV light. Proof-of-concept light detection applications like 2D information storage and anticounterfeiting or X-ray imaging are demonstrated by using the phtotochromic and white afterglow LiTaO3:xBi3+,yDy3+ phosphors. Subject bismuthinformation storage and X-ray imagingLiTaO perovskitephotochromic phenomenawhite persistent luminescence To reference this document use: http://resolver.tudelft.nl/uuid:68620f98-3ed5-48ae-8fd1-05c5442a93cd DOI https://doi.org/10.1002/lpor.202200055 Embargo date 2023-07-01 ISSN 1863-8880 Source Laser and Photonics Reviews, 16 (9) Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2022 Tianshuai Lyu, P. Dorenbos, Canhua Li, Zhanhua Wei Files PDF Laser_Photonics_Reviews_2 ... 3_Bi3_.pdf 11.24 MB Close viewer /islandora/object/uuid:68620f98-3ed5-48ae-8fd1-05c5442a93cd/datastream/OBJ/view