Electron-phonon coupling mechanisms of broadband near-infrared emissions from Cr3+ in the Ca3Sc2Si3O12 garnet
文献类型：期刊论文
| 作者 | Jia, Zhenwei; Yuan, Chenxu; Li, Ruiyang; Sun, Peng; Dong, Rui; Liu, Yongfu; Wang, Lei; Jiang, Haochuan; Jiang, Jun |
| 刊名 | PHYSICAL CHEMISTRY CHEMICAL PHYSICS
 |
| 出版日期 | 2020 |
| 卷号 | 22期号:18页码:10343-10350 |
| 关键词 | ENERGY-TRANSFER GREEN PHOSPHOR LIGHT-SOURCES PHOTOLUMINESCENCE LUMINESCENCE SUBSTITUTION RADIATION SPECTRA IONS |
| DOI | 10.1039/d0cp00240b |
| 英文摘要 | Cr3+ in the Ca3Sc2Si3O12 garnet (CSSG) has the ability to convert blue light to broadband near-infrared (NIR) emissions, which is a promising strategy for next-generation smart NIR light sources based on blue LEDs. The Cr3+ luminescence strongly depends on temperature due to electron-phonon coupling (EPC). We reveal the EPC mechanism of Cr3+ in CSSG for the first time by temperature-dependent photoluminescence measurement from 77 to 573 K and cathodoluminescence using a scanning electron microscope. Cr3+ occupies the Sc3+ site and experiences a weak crystal field in CSSG, manifesting a broad NIR emission in the 700-900 nm range that originates from the T-4(2g) -> (4)A(2g) transition. The zero phonon line (ZPL) of the T-4(2) state is observed at similar to 713 nm with a vibrational energy of similar to 310 cm(-1). A strong EPC leads to a large Stokes shift (similar to 2900 cm(-1)). The Huang-Rhys parameter (S = 4), crystal field strength (D-q/B), and Racah parameters (B and C) are estimated. |
| 学科主题 | Chemistry ; Physics |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/19629]  |
| 专题 | 2020专题 2020专题_期刊论文 |
| 作者单位 | 1.Wang, L (corresponding author), Taiyuan Univ Technol, Coll Phys & Optoelect, Taiyuan 030024, Peoples R China. 2.Liu, YF (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Jia, Zhenwei,Yuan, Chenxu,Li, Ruiyang,et al. Electron-phonon coupling mechanisms of broadband near-infrared emissions from Cr3+ in the Ca3Sc2Si3O12 garnet[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS,2020,22(18):10343-10350. |
| APA | Jia, Zhenwei.,Yuan, Chenxu.,Li, Ruiyang.,Sun, Peng.,Dong, Rui.,...&Jiang, Jun.(2020).Electron-phonon coupling mechanisms of broadband near-infrared emissions from Cr3+ in the Ca3Sc2Si3O12 garnet.PHYSICAL CHEMISTRY CHEMICAL PHYSICS,22(18),10343-10350. |
| MLA | Jia, Zhenwei,et al."Electron-phonon coupling mechanisms of broadband near-infrared emissions from Cr3+ in the Ca3Sc2Si3O12 garnet".PHYSICAL CHEMISTRY CHEMICAL PHYSICS 22.18(2020):10343-10350. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。