Zero-thermal-quenching and photoluminescence tuning with the assistance of carriers from defect cluster traps
文献类型：期刊论文
| 作者 | Chen, Yali1; Yu, Binxun1; Gou, Jing1; Liu, Shengzhong Frank1,2 |
| 刊名 | Journal of materials chemistry c
 |
| 出版日期 | 2018-10-28 |
| 卷号 | 6期号:40页码:7 |
| ISSN号 | 2050-7526 |
| DOI | 10.1039/c8tc03515f |
| 通讯作者 | Yu, binxun(yubx@snnu.edu.cn) ; Gou, jing(goujing@snnu.edu.cn) |
| 英文摘要 | Thermal quenching is a serious limiting factor for high-power phosphor-converted white-light-emitting diodes (pc-wleds) due to the temperature increase that results in emission loss by non-radiative transitions. herein, we report new tb3+-doped sr8znsc(po4)(7) phosphors with zero-thermal-quenching and tunable photoluminescence behaviors. as verified by thermoluminescence (tl) spectra, the carriers captured by shallow traps were transferred to d-5(3) energy level of tb3+, compensating the inhibition on blue d-5(3) f-7(j) emissions from the increasing concentration (x) of tb3+; therefore, the emission color was tuned from bright blue (0.205, 0.186) to white (0.215, 0.273) and finally to bright green (0.245, 0.411) upon 370 nm uv excitation as a function of x. in addition, the zero-thermal-quenching behavior at high temperatures up to 225 degrees c benefited from the carriers captured by deeper traps. thus, the reported sr8znsc(po4)(7):xtb(3+) phosphors may be candidates for high-power pc-wleds. |
| WOS关键词 | WHITE LEDS ; ENERGY-TRANSFER ; LONG PERSISTENT ; PHOSPHOR ; LUMINESCENCE ; COLOR ; TEMPERATURE ; MN4+ ; TB3+ ; TM3+ |
| WOS研究方向 | Materials Science ; Physics |
| WOS类目 | Materials Science, Multidisciplinary ; Physics, Applied |
| 语种 | 英语 |
| WOS记录号 | WOS:000448342700002 |
| 出版者 | ROYAL SOC CHEMISTRY |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2373144 |
| 专题 | 大连化学物理研究所 |
| 通讯作者 | Yu, Binxun; Gou, Jing |
| 作者单位 | 1.Shaanxi Normal Univ, Key Lab Appl Surface & Colloid Chem, Shaanxi Engn Lab Adv Energy Technol,Minist Educ, Sch Mat Sci & Engn,Shaanxi Key Lab Adv Energy Dev, Xian 710119, Shaanxi, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, IChEM, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen, Yali,Yu, Binxun,Gou, Jing,et al. Zero-thermal-quenching and photoluminescence tuning with the assistance of carriers from defect cluster traps[J]. Journal of materials chemistry c,2018,6(40):7. |
| APA | Chen, Yali,Yu, Binxun,Gou, Jing,&Liu, Shengzhong Frank.(2018).Zero-thermal-quenching and photoluminescence tuning with the assistance of carriers from defect cluster traps.Journal of materials chemistry c,6(40),7. |
| MLA | Chen, Yali,et al."Zero-thermal-quenching and photoluminescence tuning with the assistance of carriers from defect cluster traps".Journal of materials chemistry c 6.40(2018):7. |
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来源：大连化学物理研究所
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