Trivalent Chromium Ions Doped Fluorides with Both Broad Emission Bandwidth and Excellent Luminescence Thermal Stability
Recently, trivalent chromium ion doped phosphors have exhibited significant application potential in broadband near-infrared (NIR) phosphor-converted light-emitting diodes (pc-LEDs). However, developing an NIR phosphor with both broad emission bandwidth and excellent luminescence thermal stability is still a great challenge. Here, we demonstrate an NIR phosphor, ScF3:Cr3+, which can fulfill both conditions simultaneously. The prepared phosphors show broadband emission in the range of 700 to 1100 nm, with a full width at half-maximum (FWHM) of 140 nm peaking at 853 nm. These phosphors also demonstrate an excellent luminescence thermal stability (the emission intensity of ScF3:Cr3+ keeps 85.5% at 150 °C compared with the value at room temperature). An NIR pc-LED based on blue LED chips was fabricated and tested. The results show that the NIR pc-LED can yield strong broadband NIR emission. This work not only provides a promising phosphor for the application of NIR pc-LEDs but also has important guiding significance for effect of synthesis conditions on the luminescence properties of Cr3+-doped fluorides.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2021 |
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| Erschienen: |
2021 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:13 |
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| Enthalten in: |
ACS applied materials & interfaces - 13(2021), 15 vom: 21. Apr., Seite 18274-18282 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Lin, Qiuming [VerfasserIn] |
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| Links: |
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| Themen: |
Broadband |
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| Anmerkungen: |
Date Revised 22.04.2021 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1021/acsami.1c01417 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Recently, trivalent chromium ion doped phosphors have exhibited significant application potential in broadband near-infrared (NIR) phosphor-converted light-emitting diodes (pc-LEDs). However, developing an NIR phosphor with both broad emission bandwidth and excellent luminescence thermal stability is still a great challenge. Here, we demonstrate an NIR phosphor, ScF3:Cr3+, which can fulfill both conditions simultaneously. The prepared phosphors show broadband emission in the range of 700 to 1100 nm, with a full width at half-maximum (FWHM) of 140 nm peaking at 853 nm. These phosphors also demonstrate an excellent luminescence thermal stability (the emission intensity of ScF3:Cr3+ keeps 85.5% at 150 °C compared with the value at room temperature). An NIR pc-LED based on blue LED chips was fabricated and tested. The results show that the NIR pc-LED can yield strong broadband NIR emission. This work not only provides a promising phosphor for the application of NIR pc-LEDs but also has important guiding significance for effect of synthesis conditions on the luminescence properties of Cr3+-doped fluorides | ||
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| 650 | 4 | |a luminescence thermal stability | |
| 700 | 1 | |a Wang, Qiang |e verfasserin |4 aut | |
| 700 | 1 | |a Liao, Min |e verfasserin |4 aut | |
| 700 | 1 | |a Xiong, Mingxiang |e verfasserin |4 aut | |
| 700 | 1 | |a Feng, Xing |e verfasserin |4 aut | |
| 700 | 1 | |a Zhang, Xin |e verfasserin |4 aut | |
| 700 | 1 | |a Dong, Huafeng |e verfasserin |4 aut | |
| 700 | 1 | |a Zhu, Daoyun |e verfasserin |4 aut | |
| 700 | 1 | |a Wu, Fugen |e verfasserin |4 aut | |
| 700 | 1 | |a Mu, Zhongfei |e verfasserin |4 aut | |
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