基于PrNiO3/ nb掺杂SrTiO3 p-n结的自供电紫外位置敏感探测器

IF 3.5 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2025-01-15 DOI:10.1063/5.0244086

Xianjie Wang, Chang Hu, Lingli Zhang, Qiang Fu, Lingling Tao, Pengbo Zhang, Yu Sui, Bo Song

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引用次数: 0

摘要

基于横向光伏效应的位置敏感探测器在光学工程中被广泛应用于位置、距离和角度的测量。然而，由于p型宽禁带半导体的制造困难，高灵敏度和快速响应的自供电紫外位置敏感探测器仍然缺乏，这阻碍了它们的进一步设计和增强。本文系统地研究了带结构和界面输运性质对基于PrNiO3/Nb: SrTiO3p-n结的自供电紫外位置敏感探测器性能的影响。在400 K范围内，钙钛矿基紫外位置敏感探测器具有较高的位置灵敏度和快速的横向光伏效应弛豫时间。霍尔效应测量表明，光激发载流子的输运主要通过PrNiO3/Nb:SrTiO3结的界面进行，从而产生快速响应和稳定的光伏效应。该研究为设计具有增强光电性能的自供电钙钛矿氧化物紫外位置敏感探测器提供了见解和途径。

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Self-powered ultraviolet position-sensitive detectors based on PrNiO3/Nb-doped SrTiO3 p–n junctions

Position-sensitive detectors based on the lateral photovoltaic effect have been widely used in optical engineering for the measurement of position, distance, and angles. However, self-powered ultraviolet position-sensitive detectors with high sensitivity and fast response are still lacking due to the difficulty associated with the fabrication of p-type wide bandgap semiconductors, which hinders their further design and enhancement. Here, the influence of band structures and interfacial transport properties on the performance of self-powered ultraviolet position-sensitive detectors based on PrNiO3/Nb:SrTiO3p–n junctions is systematically investigated. Large position sensitivity and fast relaxation time of the lateral photovoltaic effect were observed up to 400 K in the perovskite-based ultraviolet position-sensitive detectors. Hall effect measurements revealed that the transport of photoexcited carriers occurs mainly through the interface of the PrNiO3/Nb:SrTiO3 junctions, resulting in a fast response and a stable photovoltaic effect. This study presents insights and avenues for designing self-powered perovskite oxide ultraviolet position-sensitive detectors with enhanced photoelectric performance.

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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.