期刊
MICROELECTRONIC ENGINEERING
卷 254, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.mee.2021.111669
关键词
P-NiO; N-ZnO; Heterojunction; Intrinsic defects; Resistive switching (RS)
资金
- B.S. Abdur Rahman Crescent Institute of Science and Technology (BSACIST), Chennai [1239/Dean (R)/2019, 351/Dean(R)/2021]
This research presents asymmetric resistive switching characteristics using p-NiO and n-ZnO heterojunctions. The deposition of n-ZnO and p-NiO layers was done using a cost-effective spray pyrolysis technique. The analysis confirmed the presence of a multilayered structure in the p-NiO/n-ZnO heterojunction, with stable endurance characteristics and asymmetric RS behavior.
In this research, we report asymmetric resistive switching (RS) characteristics using p-NiO and n-ZnO heterojunctions. A cost-effective spray pyrolysis technique is adopted for the deposition of n-ZnO and p-NiO layers. The structural analysis of ZnO and NiO layers confirms the hexagonal wurtzite and cubic structure, respectively. The morphological analysis of the p-NiO/n-ZnO heterojunction confirms the presence of a multilayered structure. The heterojunction was stacked between top silver (Ag) and bottom indium doped tin oxide (ITO) electrodes, and the RS characteristics were investigated. The RS device exhibits asymmetric current-voltage (I-V) characteristics with an ON/OFF ratio calculated as 2.7 and stable endurance characteristics of 50 cycles. It was analyzed that the formation and rupture of conductive filaments through intrinsic defects modulated by the p-NiO and n-ZnO layers contribute to the observed asymmetric resistive switching (RS) behavior in the fabricated p-NiO/n-ZnO heterojunction.
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