具有铁电和发光特性的Yb/Er共掺杂HfO2薄膜的外延生长

IF 3.6 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2025-05-29 DOI:10.1063/5.0264399

Jie Tu, Yingjia Li, Erxiang Tang, Xiaoyu Qiu, Xiang Xu, Zijian Chen, Yujie Zhou, Chen Zhou, Zhao Guan, Ni Zhong, Pinghua Xiang, Binbin Chen

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引用次数: 0

摘要

本文报道了利用脉冲激光沉积技术制备高质量的Yb3+和Er3+共掺杂HfO2外延薄膜。宿主材料HfO2具有较低的声子能量，这是抑制非辐射弛豫所需要的。掺杂剂Yb3+用于稳定铁电o相，并作为敏化剂提高光学吸收截面，而Er3+则是发光激活剂。该薄膜具有较强的铁电性，剩余极化率为12 μC/cm2，并且具有与先前报道的hfo2基外延薄膜相当的耐用性能。采用光致发光光谱法测定了其上下转换发光特性。具有铁电和发光功能共存的Yb3+/Er3+共掺杂HfO2薄膜可能是一种有前途的电场可调荧光粉的方法。

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Epitaxial growth of Yb/Er co-doped HfO2 films with coexisting ferroelectric and luminescent properties

We report on the fabrication of high-quality Yb3+ and Er3+ co-doped HfO2 epitaxial films using pulsed laser deposition. The host material HfO2 has relatively low phonon energy, which is desirable to inhibit the nonradiative relaxation. The dopant Yb3+ is used to stabilize the ferroelectric o-phase and also acts as the sensitizer to enhance the optical absorption cross section, while Er3+ is the luminescence activator. The films exhibit robust ferroelectricity with a remanent polarization of 12 μC/cm2 and comparable endurance performance to HfO2-based epitaxial films reported before. The up- and downconversion luminescence properties were ascertained by photoluminescence spectroscopy. The Yb3+/Er3+ co-doped HfO2 films with coexisting ferroelectric and luminescent functionalities may suggest a promising approach toward electric field tunable phosphors.

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来源期刊

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.