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Super Broadband Near-Infrared Phosphors with High Radiant Flux as Future Light Sources for Spectroscopy Applications AITranslate

Veeramani Rajendran; MuHuai Fang; Gabriel Nicolo De Guzman; Tadeusz Lesniewski; Sebastian Mahlik; Marek Grinberg; Grzegorz Leniec; Slawomir M. Kaczmarek; YanShen Lin; KuangMao Lu; ChihMin Lin; Ho Chang; ShuFen Hu; RuShi Liu;
National Taipei University of Technology; National Taiwan University; National Taiwan Normal University; Gdańsk University; Gdańsk University; Gdańsk University; West Pomeranian University of Technology Szczecin; West Pomeranian University of Technology Szczecin;Everlight Electronics Co., Ltd.;Everlight Electronics Co., Ltd.;Everlight Electronics Co., Ltd.; National Taipei University of Technology; National Taiwan Normal University; National Taipei University of Technology
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Abstract AITranslate

The near-infrared (NIR) light source is desirable for real-time nondestructive examination applications, which include the analysis of foodstuffs, health monitoring, iris recognition, and infrared cameras. The emission spectra of such an infrared light source should also be as broad as possible for effective performance, in view of the fact that the broad absorption and reflection of light by the organic elements present in foodstuffs and human health fall in the blue and NIR regions of the electromagnetic spectrum, respectively. In this letter, a blue light-emitting diode (LED) excitable super broadband NIR phosphor light source is developed with a high fwhm of 330 nm and radiant flux of 18.2 mW for the first time. The observation of super-broad-band luminescence from two distinct luminescence centers is studied and evidenced by electron paramagnetic resonance, X-ray absorption near-edge structure, steady-state luminescence, and time-resolved luminescence at ambient and high-pressure environments. Finally, the luminescence mechanism is discussed with the relevant configurational coordinate diagrams.

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DOI：https://doi.org/10.1021/acsenergylett.8b01643

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Citation Information:

The near-infrared (NIR) light source is desirable for real-time nondestructive examination applications, which include the analysis of foodstuffs, health monitoring, iris recognition, and infrared cameras. The emission spectra of such an infrared light source should also be as broad as possible for effective performance, in view of the fact that the broad absorption and reflection of light by the organic elements present in foodstuffs and human health fall in the blue and NIR regions of the electromagnetic spectrum, respectively. In this letter, a blue light-emitting diode (LED) excitable super broadband NIR phosphor light source is developed with a high fwhm of 330 nm and radiant flux of 18.2 mW for the first time. The observation of super-broad-band luminescence from two distinct luminescence centers is studied and evidenced by electron paramagnetic resonance, X-ray absorption near-edge structure, steady-state luminescence, and time-resolved luminescence at ambient and high-pressure environments. Finally, the luminescence mechanism is discussed with the relevant configurational coordinate diagrams.

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GB/T 7714-2015 [1] Veeramani Rajendran, MuHuai Fang, Gabriel Nicolo De Guzman, et al. ACS Energy Letters, 2018(3). DOI:10.1021/acsenergylett.8b01643.
MLA [1] Veeramani Rajendran, et al., ACS Energy Letters, no. 3, 2018, https://doi.org/10.1021/acsenergylett.8b01643.
APA [1] Veeramani Rajendran, MuHuai Fang, Gabriel Nicolo De Guzman, Tadeusz Lesniewski, Sebastian Mahlik, Marek Grinberg, Grzegorz Leniec, Slawomir M. Kaczmarek, YanShen Lin, KuangMao Lu, ChihMin Lin, Ho Chang, ShuFen Hu, & RuShi Liu. (2018). ACS Energy Letters(3). https://doi.org/10.1021/acsenergylett.8b01643
IEEE [1] Veeramani Rajendran, MuHuai Fang, Gabriel Nicolo De Guzman, Tadeusz Lesniewski, Sebastian Mahlik, Marek Grinberg, Grzegorz Leniec, Slawomir M. Kaczmarek, YanShen Lin, KuangMao Lu, ChihMin Lin, Ho Chang, ShuFen Hu, and RuShi Liu, ACS Energy Letters, no. 3, 2018, doi: 10.1021/acsenergylett.8b01643.