TiO2 光电化学型紫外探测器

doi:10.14139/i.cnki.cn22-1228.2024.03.004

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摘要

紫外辐射人眼不可见，对人类的健康有利有弊，因此需要对其进行探测。在各种类型的紫外探测器中，光电化学型紫外探测器因其制备简单、响应速度快、价格低廉及可自供能而备受关注。本文利用商用 P25 纳米小球 FTO导电玻璃基底上制备了薄膜光阳极，在此基础上组装了三明治结构的光电化学型紫外探测器。光电测试结果显示在 365 nm、光强为 35 ｍＷ·ｃｍ-2的紫外光照射下，器件的开路电压为 0.576 Ｖ、短路电流密度达到了 1.045ｍＡ·ｃｍ-2，响应上升时间为 0.010 ｓ、恢复时间为 0.012 ｓ。在周期性紫外光的照射下，器件呈现稳定的、可重复的开关性能。另外，器件在可见光区几乎没有响应，展示其可见光盲特性。最后，器件在 5～35 ｍＷ·ｃｍ-2的光强范围内呈现线性输入输出性能。

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	嵇繁博
	张鑫淼
	王心华
	潘孝军

关键词: TiO₂ 光电化学型紫外探测器

Abstract:

The UV radiation is both beneficial and harmful for human health ,but it not visible for human eyeso it needs to be detected. Among various types of UV detectors , photochemical type UV detectors have attractedmuch attention for their simple fabricated process , fast response speed ,low cost and self-powered and so on.lrthis work , commercial P25 nanospheres were scraped on FTO conductive glass substrate and assembledsandwich structure photochemical type UV detectors, Under the irradiation of 365 nm with 35 mW . cm^-2, theopen circuit voltage of the deviee is 0.576 V, the short cireuit current density reaches 1.045 mA * cm^-2, theresponse rise time is 0.010 s and the recovery time is 0.01 s.Under the periodic ultraviolet irradiation , thedevice also shows a stable and reproducible switching performance.In addition ,the device still shows excellenvisible light blindness characteristics and linear input and output characteristics.

Key words: Ti0₂ photoelectrochemical type UV detector

出版日期: 2024-06-25 发布日期: 2024-06-25 整期出版日期: 2024-06-25

ZTFLH:

O 472.8

引用本文:

嵇繁博 , 张鑫淼 , 王心华 , 潘孝军. TiO₂ 光电化学型紫外探测器 [J]. 大学物理实验, 2024, 37(3): 16-21.
J Fanbo , ZHANG Xinmiao , WANG Xinhua, PAN Xiaojun. Ti0₂,Based Photoelectrochemical Type UV Detector . Physical Experiment of College, 2024, 37(3): 16-21.

链接本文:

http://dawushiyan.jlict.edu.cn/CN/10.14139/i.cnki.cn22-1228.2024.03.004 或 http://dawushiyan.jlict.edu.cn/CN/Y2024/V37/I3/16

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