Two-photon, three-photon, and four-photon excellent near-infrared quantum cutting luminescence of Tm³⁺ ion activator emerged in Tm³⁺:YNbO₄ powder phosphor one material simultaneously

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• 作者：Xiaobo Chen^a ; ^{chen78xb@sina.com" class="auth_mail" title="E-mail the corresponding author} ; Gregory J. Salamo^b ; Song Li^a ; Jieliang Wang^a ; Yuying Guo^a ; Yan Gao^c ; Lizhu He^d ; ^e ; Hui Ma^a ; Jingfu Tao^a ; Ping Sun^a ; Wei Lin^a ; Quanlin Liu^d ; ^e
• 关键词：Near-infrared quantum cutting ; Luminescence intensity enhancement ; YNbO4 powder phosphor ; Energy transfer ; Tm3+ ion ; Solar cell
• 刊名：Physica B: Physics of Condensed Matter
• 出版年：2015
• 出版时间：15 December 2015
• 年：2015
• 卷：479
• 期：Complete
• 页码：159-164
• 全文大小：653 K

文摘

In present study, two-photon, three-photon, and four photon near-infrared quantum cutting luminescence of Tm³⁺ ion activator in YNbO₄ powder phosphor is reported. The visible to near-infrared excitation and emission spectra and fluorescence lifetimes of Tm_0.038Y_0.962NbO₄ powder phosphor are measured. Tm_0.038Y_0.962NbO₄ is found to possess intense two-photon, strong three-photon, and moderate four-photon quantum cutting 1820 nm ³F₄→³H₆ luminescence of the Tm³⁺ ion simultaneously. The up-limit of the two-, three-, and four-photon near-infrared quantum cutting efficiency are found to be approximately 166%, 198%, and 192%, respectively. These results are expected to be valuable in aiding the probing of new generation environmentally friendly germanium Ge solar cells, currently a popular condensed matter physical topic globally.