Eu3+-Activated Sr3ZnTa2O9 single-component white light phosphors: emission intensity enhancement and color rendering improvement
Samo za registrovane korisnike
2019
Autori
Li, XiaohuiMilićević, Bojana R.
Dramićanin, Miroslav
Jing, Xiping
Tang, Qiang
Shi, Jianxin
Wu, Mingmei
Članak u časopisu (Objavljena verzija)
,
© 2019 The Royal Society of Chemistry
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Single-component white light phosphors with a broad and full color spectrum are urgently required to overcome residual problems with commercial phosphors. In this paper, we describe how Eu3+, as the dopant of Sr3ZnTa2O9 (SZT), plays an important role in structural modulation (including structural order-disorder and intrinsic oxygen defects), as demonstrated by electronic structural calculations and systematic experiments. Furthermore, D-5(0) F-7(2) emission of Eu3+ provides the red component of the emission spectrum and increases the color rendering index of SZT:Eu3+ phosphors. Consequently, the resulting phosphor SZT:10%Eu3+ shows significantly enhanced emission intensity, and its broadband emission covers the entire visible region from 400 nm to 720 nm. A fabricated LED device using a near-ultraviolet 370 nm chip coated with a single-component, the SZT:10%Eu3+ phosphor, shows warm white emission with a high color rendering index (R-a = 82).
Izvor:
Journal of Materials Chemistry C, 2019, 7, 9, 2596-2603Finansiranje / projekti:
- National Natural Science Foundation of China (NSFC)-Yunnan Province [U1702254]
- National Natural Science Foundation of China (NSFC)-Yunnan Province [U1301242]
- NSFC [21771195]
- Natural Science Foundation of Guangdong Province [2016A030313305]
- Special Fund of Guangdong Province Project for Applied Science and Technology Research and Development [2017B090917001]
- Special Fund of Guangdong Province Project for Applied Science and Technology Research and Development [2016B090931007]
- Special Fund of Guangdong Province Project for Applied Science and Technology Research and Development [2015B090927002]
- Science and Technology Planning Project of Guangzhou City [201704030020]
- Science and Technology Planning Project of Guangzhou City [201604016005]
- National Natural Science Foundation of China [11375278]
- National Natural Science Foundation of China (NSFC)-Guangdong Province [U1702254]
- National Natural Science Foundation of China (NSFC)-Guangdong Province [U1301242]
DOI: 10.1039/C9TC00159J
ISSN: 2050-7526; 2050-7534
WoS: 000460700100010
Scopus: 2-s2.0-85062391982
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Li, Xiaohui AU - Milićević, Bojana R. AU - Dramićanin, Miroslav AU - Jing, Xiping AU - Tang, Qiang AU - Shi, Jianxin AU - Wu, Mingmei PY - 2019 UR - http://xlink.rsc.org/?DOI=C9TC00159J UR - https://vinar.vin.bg.ac.rs/handle/123456789/8087 AB - Single-component white light phosphors with a broad and full color spectrum are urgently required to overcome residual problems with commercial phosphors. In this paper, we describe how Eu3+, as the dopant of Sr3ZnTa2O9 (SZT), plays an important role in structural modulation (including structural order-disorder and intrinsic oxygen defects), as demonstrated by electronic structural calculations and systematic experiments. Furthermore, D-5(0) F-7(2) emission of Eu3+ provides the red component of the emission spectrum and increases the color rendering index of SZT:Eu3+ phosphors. Consequently, the resulting phosphor SZT:10%Eu3+ shows significantly enhanced emission intensity, and its broadband emission covers the entire visible region from 400 nm to 720 nm. A fabricated LED device using a near-ultraviolet 370 nm chip coated with a single-component, the SZT:10%Eu3+ phosphor, shows warm white emission with a high color rendering index (R-a = 82). T2 - Journal of Materials Chemistry C T1 - Eu3+-Activated Sr3ZnTa2O9 single-component white light phosphors: emission intensity enhancement and color rendering improvement VL - 7 IS - 9 SP - 2596 EP - 2603 DO - 10.1039/C9TC00159J ER -
@article{ author = "Li, Xiaohui and Milićević, Bojana R. and Dramićanin, Miroslav and Jing, Xiping and Tang, Qiang and Shi, Jianxin and Wu, Mingmei", year = "2019", abstract = "Single-component white light phosphors with a broad and full color spectrum are urgently required to overcome residual problems with commercial phosphors. In this paper, we describe how Eu3+, as the dopant of Sr3ZnTa2O9 (SZT), plays an important role in structural modulation (including structural order-disorder and intrinsic oxygen defects), as demonstrated by electronic structural calculations and systematic experiments. Furthermore, D-5(0) F-7(2) emission of Eu3+ provides the red component of the emission spectrum and increases the color rendering index of SZT:Eu3+ phosphors. Consequently, the resulting phosphor SZT:10%Eu3+ shows significantly enhanced emission intensity, and its broadband emission covers the entire visible region from 400 nm to 720 nm. A fabricated LED device using a near-ultraviolet 370 nm chip coated with a single-component, the SZT:10%Eu3+ phosphor, shows warm white emission with a high color rendering index (R-a = 82).", journal = "Journal of Materials Chemistry C", title = "Eu3+-Activated Sr3ZnTa2O9 single-component white light phosphors: emission intensity enhancement and color rendering improvement", volume = "7", number = "9", pages = "2596-2603", doi = "10.1039/C9TC00159J" }
Li, X., Milićević, B. R., Dramićanin, M., Jing, X., Tang, Q., Shi, J.,& Wu, M.. (2019). Eu3+-Activated Sr3ZnTa2O9 single-component white light phosphors: emission intensity enhancement and color rendering improvement. in Journal of Materials Chemistry C, 7(9), 2596-2603. https://doi.org/10.1039/C9TC00159J
Li X, Milićević BR, Dramićanin M, Jing X, Tang Q, Shi J, Wu M. Eu3+-Activated Sr3ZnTa2O9 single-component white light phosphors: emission intensity enhancement and color rendering improvement. in Journal of Materials Chemistry C. 2019;7(9):2596-2603. doi:10.1039/C9TC00159J .
Li, Xiaohui, Milićević, Bojana R., Dramićanin, Miroslav, Jing, Xiping, Tang, Qiang, Shi, Jianxin, Wu, Mingmei, "Eu3+-Activated Sr3ZnTa2O9 single-component white light phosphors: emission intensity enhancement and color rendering improvement" in Journal of Materials Chemistry C, 7, no. 9 (2019):2596-2603, https://doi.org/10.1039/C9TC00159J . .