期刊
ENERGIES
卷 15, 期 22, 页码 -出版社
MDPI
DOI: 10.3390/en15228442
关键词
rare earth; upconversion luminescence; ferroelectrics; thin films
资金
- National Natural Science Foundation of China [11874230, 12274243, 52233014]
- Fundamental Research Funds for the Central Universities
Rare-earth-doped ferroelectric oxides are materials with abundant physical functionalities and have great potential in applications such as optical sensing, lighting, and solar cells.
Ferroelectric oxides possess abundant fascinating physical functionalities, such as electro-optic, acousto-optic, and nonlinear optical characteristics, etc. However, most pristine ferroelectric oxides exhibit no efficient luminescent properties due to the indirect and wide bandgap. Rare-earth-doped phosphors demonstrate advantages such as sharp emission bandwidths, large Stokes shift, high photonstability, and low toxicity. The combination of rare-earth ions and ferroelectric oxides has shown great potential in optical sensing, lighting, solar cells, and other applications. Rare-earth-doped ferroelectric oxides exhibit efficient upconversion or downconversion luminescence in the range of ultraviolet (UV) to near-infrared (NIR) regions. In this article, the preparation process of rare-earth-doped ferroelectric oxides and the preparation methods of thin films are introduced. Their recent applications in optical sensing, lighting, and solar cells are highlighted. The review concludes with a brief summary of all related branches and discusses the potential direction of this field.
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