Biaxial strain-induced strong enhancement of upconversion photoluminescence in lanthanide-doped ferroelectric thin films
| Autor: | Jianhua Hao, Zhengwei Chen, Yang Zhang, Weihua Tang, Yanan Zhao, Sisi Li, Zhenping Wu, Haisheng Chen, Er-Jia Guo |
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| Rok vydání: | 2019 |
| Předmět: |
Lanthanide
Materials science Photoluminescence Acoustics and Ultrasonics Dopant business.industry Doping 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Ferroelectricity Photon upconversion 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials Strain engineering Optoelectronics Light emission 0210 nano-technology business |
| Zdroj: | Journal of Physics D: Applied Physics. 52:234002 |
| ISSN: | 1361-6463 0022-3727 |
| Popis: | The ability to manipulate and enhance the optical properties in luminescent materials is of great interest for both scientific research and practical applications. Here we present a systematic study of the effect of biaxial strain on the upconversion photoluminescence properties in lanthanide-doped ferroelectric thin films. Through control of the c/a ratios of BaTiO3:Er films, the luminescent intensity of the films can be effectively increased by over seven times. The observed phenomenon can be understood in terms of the variation in crystal field around Er3+ ions induced by biaxial strain due to the lattice mismatch. Moreover, our results have bridged the identifications of lattice distortion and crystalline orientation through the light emission properties of lanthanide dopants. The intriguing interplay will aid further design of favorable lanthanide-doped phosphors via strain engineering. |
| Databáze: | OpenAIRE |
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