Control of dual ultraviolet band flexible ultraviolet photodetector by piezo-phototronic effect
Control of dual ultraviolet band flexible ultraviolet photodetector by piezo-phototronic effect
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DOI：
10.1016/j.jlumin.2020.117875
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发表时间：
2021-04
影响因子：
3.6
通讯作者：
Jiamei Sun;D. Jiang;Feng-Yan Zhang
中科院分区：
文献类型：
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作者：
Jiamei Sun;D. Jiang;Feng-Yan Zhang
如何实现双波段控制是双波段紫外光探测器面临的挑战。本文介绍了一种在柔性衬底上制备的AlZnO/MgZnO（AZO/MZO）双层薄膜的双波段紫外光电二极管。通过可分辨的光谱响应实现了320和345 nm的双紫外波段检测。本文以MZO/Au和AZO/MZO双结模型为基础，解释了双波段探测的控制。在压光电效应的作用下，控制范围内的响应度峰值分别提高了306%和210%，对于极端环境下目标信号的检测具有巨大的潜在应用。
The challenge for dual-band ultraviolet (UV) photodetectors (PDs) is how to achieve dual-band control. Herein, we introduce a dual-band UV PD, which consists of an AlZnO/MgZnO (AZO/MZO) bilayer films prepared on a flexible substrate. The dual ultraviolet bands detection was achieved at 320 and 345 nm by the resolvable spectral response. The control of dual-band detection has been explained on the basis of a model containing MZO/Au and AZO/MZO two junctions. Under the action of piezo-phototronic effect, the peaks of responsivity within the control range are increased by 306% and 210% respectively, which has enormous potential applications for detecting target signals in extreme environments.