基于柔性和刚性衬底的ZnO纳米结构UVA传感器的研究

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Materials Science and Engineering: B Pub Date : 2025-09-12 DOI:10.1016/j.mseb.2025.118778

Fatemeh Bagheri, Hamid Haratizadeh, Rasool Askari

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引用次数: 0

摘要

在这项研究中，研究了两种类型的玻璃作为刚性衬底和聚合物作为柔性衬底的光电探测器的性能。采用简单、经济的方法制备了zno基紫外探测器。虽然这两种光电探测器对紫外光都表现出明显的光响应，但与刚性基板rs相比，基于柔性基板fs的传感器表现出更强的光响应性、响应时间、EQE（外部量子效率）和Ilight/Idark。FS传感器（1980）的光/暗比比RS传感器（680）高出近3倍。同样，FS传感器的EQE（167.5%）明显高于RS传感器（60.7%）。在不同时间的阳光下，对FS传感器的性能进行了评估。数据表明，传感器对阳光的响应与对UV LED辐射的响应之间存在很强的相关性。这一发现验证了其在实际应用中的可靠性。将这些传感器集成到可穿戴技术中，可以有效监测个人的紫外线暴露，这对夏季的健康保护特别有益。

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Study of ZnO nanostructured UVA sensor based on flexible and rigid substrate

In this study, the performance of photodetectors fabricated onto two types of glass as the rigid substrate and polymeric as the flexible substrate was investigated. ZnO-based UV detectors were fabricated through a simple and cost-effective process. While both photodetectors exhibited appreciable photoresponses to UV light, the flexible substrate FS-based sensor demonstrated enhanced photoresponsivity, response time, EQE (external quantum efficiency) and I_light/I_dark compared to a rigid substrate RS-based. The I_light/I_dark ratio of the FS sensor (1980) was nearly three times higher than that of the RS sensor (680). Similarly, the EQE was significantly greater for the FS sensor (167.5%) compared to the RS sensor (60.7%). The FS sensor performance was evaluated under sunlight across different times. The data demonstrated a strong correlation between the sensor’s response to sunlight and its response to UV LED radiation. This finding validates its reliability for real-world applications. The integration of these sensors into wearable technology enables the effective monitoring of individuals’ UV exposure, which is particularly beneficial for health safeguarding during summer.

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来源期刊

Materials Science and Engineering: B 工程技术-材料科学：综合

CiteScore

5.60

自引率

2.80%

发文量

481

审稿时长

3.5 months

期刊介绍： The journal provides an international medium for the publication of theoretical and experimental studies and reviews related to the electronic, electrochemical, ionic, magnetic, optical, and biosensing properties of solid state materials in bulk, thin film and particulate forms. Papers dealing with synthesis, processing, characterization, structure, physical properties and computational aspects of nano-crystalline, crystalline, amorphous and glassy forms of ceramics, semiconductors, layered insertion compounds, low-dimensional compounds and systems, fast-ion conductors, polymers and dielectrics are viewed as suitable for publication. Articles focused on nano-structured aspects of these advanced solid-state materials will also be considered suitable.