环境气氛对二维超薄ZnO纳米片紫外探测器性能的影响

doi:10.16180/j.cnki.issn1007-7820.2019.02.014

摘要/Abstract

摘要：

二维宽带隙半导体材料独特的纳米结构是高性能紫外光电探测器的潜在理想材料,但是在实际应用过程中,各种环境气氛可显著影响紫外光探测器件的性能。文中采用化学气相沉积方法制备超薄二维ZnO纳米片,并利用该纳米片制作了紫外光探测器件。将探测器件置于密闭系统中进行测试,排除了不同应用环境对测试结果的影响,同时重点研究了不同极性分子对二维超薄ZnO纳米片紫外探测器性能的影响。研究结果表明,在极性分子存在的条件下,ZnO纳米紫外光探测器的暗电流降低1.5~2倍,灵敏性和响应率提高了约1.5倍。

关键词: ZnO, 极性分子, 光探测器, 暗电流, 灵敏度, 响应率

Abstract:

The unique nanostructures of two dimensional wide band gap semiconductor materials make it an ideal material for high performance UV- detectors. However, in the practical application process,various environment atmospheres can significantly affect the performance of UV detectors. In this paper, researchers used chemical vapor deposition method to prepare ultra-thin two-dimensional ZnO nanosheets which were further utilized to fabricate UV detection devices.Placed the detection device in a closed system for testing to exclude the impact of different application environments on the test results. At the same time, the influence of different polar molecules on the properties of two-dimensional ultrathin ZnO nanosheet UV detector wereemphatically studied.The results showed that in the presence of polar molecules, the dark current of ZnO nanoviolet photodetector was reduced by 1.5~2 times while the sensitivity and response rate were increased by about 1.5 times.

Key words: ZnO, polar molecules, optical detector, dark current, sensitivity, response rate

中图分类号:

TN36

赵爽,祝元坤,王现英. 环境气氛对二维超薄ZnO纳米片紫外探测器性能的影响[J]. 电子科技, 2019, 32(2): 66-69.

ZHAO Shuang,ZHU Yuankun,WANG Xianying. Effect of Atmosphere on the Performance of Ultraviolet Detector Based on Ultrathin ZnO Nanosheets[J]. Electronic Science and Technology, 2019, 32(2): 66-69.

图/表 7

图1

图2

图3

图4

图5

表1

图6

参考文献 19

[1]	Chen H, Liu K, Hu L , et al. New concept ultraviolet photodetectors[J]. Materials Today, 2015,18(9):493-502. doi: 10.1016/j.mattod.2015.06.001
[2]	Alaie Z, Nejad S M, Yousefi M H . Recent advances in ultraviolet photodetectors[J].Materials Science in Semiconductor Processing, 2015(29):16-55.
[3]	Fu X W, Liao Z M, Zhou Y B , et al. Graphene/ZnO nanowire/graphene vertical structure based fast-response ultraviolet photodetector[J]. Applied Physics Letters, 2012,100(22):1705-1720. doi: 10.1063/1.4724208
[4]	Gedamu D, Paulowicz I, Kaps S , et al. Rapid fabrication technique for interpenetrated ZnO nanotetrapod networks for fast UV sensors[J]. Advanced Materials, 2014,26(10):1541-1550. doi: 10.1002/adma.201304363 pmid: 24249633
[5]	Sun M, Xu Z, Yin M , et al. Broad-band three dimensional nanocave ZnO thin film photodetectors enhanced by Au surface plasmon resonance[J]. Nanoscale, 2016,8(16):8924-8933. doi: 10.1039/c6nr00089d pmid: 27073045
[6]	Bie Y Q, Liao Z M, Zhang H Z , et al. Self-powered, ultrafast, visible-blind UV detection and optical logical operation based on ZnO/GaN nanoscale p-n junctions[J]. Advanced Materials, 2011,23(5):649-653. doi: 10.1002/adma.201003156 pmid: 21274914
[7]	Kaur M, Kailasaganapathi S, Ramgir N , et al. Gas dependent sensing mechanism in ZnO nanobelt sensor[J]. Applied Surface Science, 2016,394(6):258-266. doi: 10.1016/j.apsusc.2016.10.085
[8]	Alenezi M R, Henley S J, Emerson N G , et al. From 1D and 2D ZnO nanostructures to 3D hierarchical structures with enhanced gas sensing properties[J]. Nanoscale, 2013,6(1):235-247. doi: 10.1039/c3nr04519f pmid: 24186303
[9]	钱小瑞, 吴飞, 许奇 , 等. 非氧环境下气体传感器气敏特性研究[J]. 电子科技, 2017,30(8):76-80. doi: 10.16180/j.cnki.issn1007-7820.2017.08.021
	Qian Xiaorui, Wu Fei, Xu Qi , et al. Study on gas sensing characteristics of gas sensor under oxygen-free environment[J]. Electronic Science and Technology, 2017,30(8):76-80. doi: 10.16180/j.cnki.issn1007-7820.2017.08.021
[10]	Wang X, Wang Y, Åberg D , et al. Batteryless chemical detection with semiconductor nanowires[J]. Advanced Materials, 2011,23(1):117-121. doi: 10.1002/adma.201003221 pmid: 21120853
[11]	Liu K, Sakurai M, Aono M . ZnO-based ultraviolet photodetectors[J]. Sensors, 2010,10(9):8604-34. doi: 10.3390/s100908604
[12]	Shaikh S K, Ganbavle V V, Inamdar S I , et al. Multifunctional zinc oxide thin films for high-performance UV photodetectors and nitrogen dioxide gas sensors[J]. Rsc Advances, 2016,6(31):25641-25650. doi: 10.1039/C6RA01750A
[13]	石明吉, 李壮辉, 曹原 , 等. ZnO纳米片的制备及光学性能的研究[J]. 南阳理工学院学报, 2013,5(6):109-111.
	Shi Mingji, Li Zhuanghui, Cao Yuan , et al. The fabrication and photoluminescence property of ZnO nanosheets[J]. Journal of Nanyang Institute of Technology, 2013,5(6):109-111.
[14]	韩光强, 王树林, 陈星建 , 等. 氧化锌纳米材料的机械法制备及其光学性能研究[J]. 上海理工大学学报, 2008,30(6):573-577. doi: 10.3969/j.issn.1007-6735.2008.06.015
	Han Guangqiang, Wang Shulin, Chen Xingjian , et al. Fabrication of ZnO nanoparticles by roller vibration milling and their optical properties[J]. Journal of University of Shanghai for Science and Technology, 2008,30(6):573-577. doi: 10.3969/j.issn.1007-6735.2008.06.015
[15]	Tian H, Wang X, Zhu Y , et al. High performance top-gated ferroelectric field effect transistors based on two-dimensional ZnO nanosheets[J]. Applied Physics Letters, 2017,110(4):043505. doi: 10.1063/1.4975061
[16]	何彬, 邢杰, 段艳廷 , 等. Ga2O3紫外光探测器的研究进展[J]. 材料导报, 2013,27(s2):157-163.
	He Bin, Xing Jie, Duan Yanting , et al. Research progress of Ga2O3 UV photodetectors[J]. Materials Review, 2013,27(s2):157-163.
[17]	相文峰, 蔡天宇, 黄晓炜 , 等. NiO纳米线阵列紫外光电特性[J]. 微纳电子技术, 2016,53(2):98-101. doi: 10.13250/j.cnki.wndz.2016.02.004
	Xiang Wenfeng, Cai Tianyu, Huang Xiaowei , et al. UV photoelectric properties of NiO nanowire-arrays[J]. Micronanoelectronic Technology, 2016,53(2):98-101. doi: 10.13250/j.cnki.wndz.2016.02.004
[18]	Liu X, Gu L, Zhang Q , et al. All-printable band-edge modulated ZnO nanowire photodetectors with ultra-high detectivity[J].Nature Communications, 2014(5):4007-4029.
[19]	Hu L, Yan J, Liao M , et al. An optimized ultraviolet‐a light photodetector with wide‐range photoresponse based on ZnS/ZnO biaxial nanobelt[J]. Advanced Materials, 2012,24(17):2305-2309. doi: 10.1002/adma.201290095 pmid: 22467271

	暗电流/μA	响应度/A·W^-1	灵敏度D
空气	160.44	1.32×10²	7.14×10¹⁰
异丙醇	100.08	1.59×10²	10.84×10¹⁰
丙酮	97.55	1.06×10²	7.40×10¹⁰
二氯甲烷	91.11	1.36×10²	10.45×10¹⁰
吡啶	96.08	1.44×10²	9.89×10¹⁰
DMF	70.84	1.16×10²	9.45×10¹⁰