Penetrating biological tissue using light-emitting diodes with a highly efficient near-infrared ScBO3:Cr3+ phosphor

Mu-Huai Fang , Po-Yuan Huang , Zhen Bao , Natalia Majewska , Tadeusz Leśniewski , Sebastian Mahlik , Marek Grinberg , Grzegorz Leniec , Slawomir M. Kaczmarek , Chia-Wei Yang , Kuang-Mao Lu , Hwo-Shuenn Sheu , Ru-Shi Liu


Recently, infrared (IR) light-emitting diodes (LEDs) have attracted considerable interest in the research field worldwide. IR phosphors, the basic materials utilized in LEDs, have become a research hotspot as well. Here, we introduce the high-quantum-efficiency IR ScBO3:Cr3+ phosphor, which provides a spectral range of emission from 700 to 1000 nm with a peak maximum at 800 nm. Electron paramagnetic resonance spectroscopy, with high element selectivity, was used to elucidate the unusual small peak in the photoluminescence spectrum. Phonon structure and electron–lattice interaction were well observed and discussed via temperature-dependent measurements. Moreover, the high quantum efficiency of 72.8% was achieved. To evaluate their potential practical application, phosphor-converted LED packages were designed, which revealed high stability and high output power of 39.11 mW. Furthermore, the fabricated IR LED demonstrated a remarkable ability to penetrate biological tissues. This study provides insights into the luminescent properties and the practical applications of IR LEDs.
Author Mu-Huai Fang
Mu-Huai Fang,,
, Po-Yuan Huang
Po-Yuan Huang,,
, Zhen Bao
Zhen Bao,,
, Natalia Majewska (FMPI/IEP)
Natalia Majewska,,
- Institute of Experimental Physics
, Tadeusz Leśniewski (FMPI/IEP)
Tadeusz Leśniewski ,,
- Institute of Experimental Physics
, Sebastian Mahlik (FMPI/IEP)
Sebastian Mahlik,,
- Institute of Experimental Physics
, Marek Grinberg (FMPI/IEP)
Marek Grinberg,,
- Institute of Experimental Physics
, Grzegorz Leniec
Grzegorz Leniec,,
, Slawomir M. Kaczmarek
Slawomir M. Kaczmarek,,
, Chia-Wei Yang
Chia-Wei Yang,,
et al.`
Journal seriesChemistry of Materials, ISSN 0897-4756, e-ISSN 1520-5002, (N/A 200 pkt)
Issue year2020
Publication size in sheets0.50
ASJC Classification1500 General Chemical Engineering; 1600 General Chemistry; 2505 Materials Chemistry
Languageen angielski
Score (nominal)200
Score sourcejournalList
ScoreMinisterial score = 200.0, 01-06-2020, ArticleFromJournal
Publication indicators WoS Citations = 0.000; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 1.769; WoS Impact Factor: 2018 = 10.159 (2) - 2018=10.091 (5)
Citation count*5 (2020-08-09)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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