Analysis on the piezotronic effect in a strained piezo-Schottky junction with AC impedance spectroscopy | |
Department | 固体润滑国家重点实验室 |
Li, Yunxia1; Zhang, Zeming1; Han, Weihua1,2; Jiang, Changjun3; Xie, Erqing1 | |
2017 | |
Source Publication | Nano Energy |
ISSN | 2211-2855 |
Volume | 36Pages:118-125 |
Abstract | Piezotronic effect is always mixed with piezoresistive effect when we investigate the electronic transport behaviors in the study of piezotronic devices. It is essential to separate the two effects, which is beneficial to the data analysis in actual applications. Here, we report a general method, alternative current (AC) impedance spectroscopy, to distinguish the piezotronic and piezoresistive effects in a strained piezo-Schottky junction. The study was performed on a copper (Cu) layer and F:SnO2 (FTO) glass sandwiched zinc oxide (ZnO) nanowire arrays (Cu/ZnO/FTO). The AC spectra measured at various stress were simulated with appropriate equivalent circuits to reveal the possible change in the device. Our results showed the dominant role of piezotronic effect in the Cu/ZnO/FTO structure instead of piezoresistive effect which has been suspected previously. A capacitive effect of the sputtered ZnO seed layer was also observed. The origin of the capacitance was verified by the bias-independent impedance diagrams. This technique has provided a powerful tool to quantitative analysis on the inner changes of a strained piezotronic device, not only piezo-Schottky junction-based diodes, but also pn junction-based phototronics. |
Keyword | Impedance Spectroscopy Piezotronic Effect Piezo-schottky Junction Zno Nanowire Arrays |
Subject Area | 材料科学与物理化学 |
DOI | 10.1016/j.nanoen.2017.04.021 |
Funding Organization | the National Natural Science Foundation of China (Grant nos. 61404066;U1531114;51572118);the Open Project of Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University (LZUMMM2017009) |
Indexed By | SCI |
If | 12.343 |
Language | 英语 |
compositor | 第二作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/21987 |
Collection | 固体润滑国家重点实验室(LSL) |
Corresponding Author | Han, Weihua |
Affiliation | 1.Lanzhou Univ, Sch Phys Sci & Technol, 222 South Tianshui Rd, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 3.Lanzhou Univ, Key Lab Magnetism & Magnet Mat MOE, Lanzhou 730000, Peoples R China |
Recommended Citation GB/T 7714 | Li, Yunxia,Zhang, Zeming,Han, Weihua,et al. Analysis on the piezotronic effect in a strained piezo-Schottky junction with AC impedance spectroscopy[J]. Nano Energy,2017,36:118-125. |
APA | Li, Yunxia,Zhang, Zeming,Han, Weihua,Jiang, Changjun,&Xie, Erqing.(2017).Analysis on the piezotronic effect in a strained piezo-Schottky junction with AC impedance spectroscopy.Nano Energy,36,118-125. |
MLA | Li, Yunxia,et al."Analysis on the piezotronic effect in a strained piezo-Schottky junction with AC impedance spectroscopy".Nano Energy 36(2017):118-125. |
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1-s2.0-S221128551730(1256KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
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