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Reducing operation current of Ni-doped silicon oxide resistance random access memory by supercritical CO2 fluid treatment

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9 Author(s)
Kuan-Chang Chang ; Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, 70 Lien-hai Road, Kaohsiung 804, Taiwan ; Tsai, Tsung-Ming ; Chang, Ting-Chang ; Syu, Yong-En
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In the study, we reduced the operation current of resistance random access memory (RRAM) by supercritical CO2 (SCCO2) fluids treatment. The power consumption and joule heating degradation of RRAM device can be improved greatly by SCCO2 treatment. The defect of nickel-doped silicon oxide (Ni:SiOx) was passivated effectively by the supercritical fluid technology. The current conduction of high resistant state in post-treated Ni:SiOx film was transferred to Schottky emission from Frenkel-Pool due to the passivation effect. Additionally, we can demonstrate the passivation mechanism of SCCO2 for Ni:SiOx by material analyses of x-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy.

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Applied Physics Letters  (Volume:99 ,  Issue: 26 )