Optical dispersion and bandgap of pure and Mn-doped 0.92Na(0.5)Bi(0.5)TiO(3)-0.08K(0.5)Bi(0.5)TiO(3) lead-free single crystals
文献类型：期刊论文
| 作者 | Wu, Yang; Hu, Yuqing; Xue, Saidong; Zhao, Xiangyong; Wang, Feifei; Tang, Yanxue; Duan, Zhihua; Shi, Wangzhou; Luo, Haosu; Sun, Renbing |
| 刊名 | JOURNAL OF THE AMERICAN CERAMIC SOCIETY
 |
| 出版日期 | 2019-12-31 |
| ISSN号 | 0002-7820 |
| 关键词 | bandgap Mn dopant NBT-KBT single crystal optical properties |
| DOI | 10.1111/jace.16823 |
| 文献子类 | Article; Early Access |
| 英文摘要 | Optical properties of lead-free ferroelectric pure and Mn-doped 0.92Na(0.5)Bi(0.5)TiO(3)-0.08K(0.5)Bi(0.5)TiO(3) (NBT-8KBT) single crystals have been investigated systematically. Refractive index and extinction coefficient were measured and the critical parameters are obtained by modified Sellmeier dispersion equations and single-oscillator dispersion relation. The decline of refractive index for Mn:NBT-8KBT could be related to the lattice distortion of the Mn ions doping. High transmittance (>70%) over the transparent region (>400 nm) was found in the pure NBT-8KBT, higher than that of Mn:NBT-8KBT, which could be caused by the increase of domain wall density. An about 100 nm red-shift of absorption edge was observed in the Mn:NBT-8KBT single crystal, which is located in the visible region. Optical bandgap energies calculated through Tauc equation and a large bandgap difference of 2.96 and 2.62 eV occurs in the NBT-8KBT and Mn:NBT-8KBT, respectively, which illustrates the modulation of the band structures by Mn doping. |
| WOS关键词 | ELECTRICAL-PROPERTIES ; GROWTH ; GAP |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| 出版者 | WILEY |
| 源URL | [http://ir.sic.ac.cn/handle/331005/27525]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Wu, Yang,Hu, Yuqing,Xue, Saidong,et al. Optical dispersion and bandgap of pure and Mn-doped 0.92Na(0.5)Bi(0.5)TiO(3)-0.08K(0.5)Bi(0.5)TiO(3) lead-free single crystals[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2019. |
| APA | Wu, Yang.,Hu, Yuqing.,Xue, Saidong.,Zhao, Xiangyong.,Wang, Feifei.,...&Sun, Renbing.(2019).Optical dispersion and bandgap of pure and Mn-doped 0.92Na(0.5)Bi(0.5)TiO(3)-0.08K(0.5)Bi(0.5)TiO(3) lead-free single crystals.JOURNAL OF THE AMERICAN CERAMIC SOCIETY. |
| MLA | Wu, Yang,et al."Optical dispersion and bandgap of pure and Mn-doped 0.92Na(0.5)Bi(0.5)TiO(3)-0.08K(0.5)Bi(0.5)TiO(3) lead-free single crystals".JOURNAL OF THE AMERICAN CERAMIC SOCIETY (2019). |
入库方式： OAI收割
来源：上海硅酸盐研究所
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