基于成本效益法的ZnS:Mn纳米棒网络的快速响应金属-半导体-金属结紫外光电探测器
Fast-Response Metal-Semiconductor-Metal Junction Ultraviolet Photodetector Based on ZnS:Mn Nanorod Networks via a Cost-Effective Method.
作者信息
Saeed Sara, Dai Rucheng, Janjua Raheel Ahmed, Huang Da, Wang He, Wang Zhongping, Ding Zejun, Zhang Zengming
机构信息
Department of Physics and CAS Key Laboratory of Strong-Coupled Quantum Matter Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
The Center of Physical Experiments, University of Science and Technology of China, Hefei 230026, China.
出版信息
ACS Omega. 2021 Nov 23;6(48):32930-32937. doi: 10.1021/acsomega.1c04981. eCollection 2021 Dec 7.
In this work, Mn-doped ZnS nanorods were synthesized by a facile hydrothermal method. The morphology, structure, and composition of the as-prepared samples were investigated. The temperature-dependent photoluminescence of ZnS:Mn nanorods was analyzed, and the corresponding activation energies were calculated by using a simple two-step rate equation. Mn-related orange emission (T → A) demonstrates high stability and is comparatively less affected by the temperature variations than the defect-related emission. A metal-semiconductor-metal junction ultraviolet photodetector based on the nanorod networks has been fabricated by a cost-effective method. The device exhibits visible blindness, superior ultraviolet photodetection with a responsivity of 1.62 A/W, and significantly fast photodetection response with the rise and decay times of 12 and 25 ms, respectively.
在本工作中，通过简便的水热法合成了锰掺杂的硫化锌纳米棒。对所制备样品的形貌、结构和组成进行了研究。分析了硫化锌：锰纳米棒的温度依赖光致发光，并使用简单的两步速率方程计算了相应的激活能。与锰相关的橙色发射（T→A）表现出高稳定性，并且与缺陷相关发射相比，受温度变化的影响相对较小。通过一种经济高效的方法制备了基于纳米棒网络的金属-半导体-金属结紫外光电探测器。该器件表现出可见光盲性、具有1.62 A/W的响应度的优异紫外光探测性能，以及分别为12 ms和25 ms的上升和衰减时间的显著快速的光探测响应。
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