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VACUUM ›› 2023, Vol. 60 ›› Issue (6): 32-36.doi: 10.13385/j.cnki.vacuum.2023.06.05

• Thin Film • Previous Articles     Next Articles

Synthesis of ZnO Nanorod Arrays Grown on Different Substrates and Their Field Emission Performances

CHEN Ya-wei, DONG Ming-liang, QIAN Wei-jin, TU You-qing, HUANG Wei-jun, DONG Chang-kun   

  1. Wenzhou Key Lab of Micro-Nano Optoelectronic Devices, Wenzhou University, Wenzhou 325035, China
  • Received:2023-04-17 Online:2023-11-25 Published:2023-11-27

Abstract: Zinc oxide nanorod arrays were prepared on five different substrates using low-temperature hydrothermal method, and the microstructure and elemental composition of the products were characterized by SEM, TEM, XRD, EDS, and XPS. The field emission (FE) properties of zinc oxide nanorod arrays grown on different substrates were investigated. The results show that the turn-on fields of samples grown on Si, conductive glass, nickel, stainless steel, and nickel titanium alloy increase in turn. Attributing to the better adhesion between zinc oxide nanorods and the Si substrate, the samples grown on Si substrate have the best FE performance and the best emission stability, with a current fluctuation less than 10% under the current density of 0.5mA/cm2 in DC mode for 15 h.

Key words: hydrothermal method, substrate, zinc oxide nanorod array, field emission, adhesion

CLC Number:  TP212;TB772;TQ127

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