TY - JOUR
T1 - Effect of ultraviolet illumination on metal oxide resistive memory
AU - Duran Retamal, Jose Ramon
AU - Kang, Chen-Fang
AU - Ho, Chih-Hsiang
AU - Ke, Jr-Jian
AU - Chang, Wen-Yuan
AU - He, Jr-Hau
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2014/12/22
Y1 - 2014/12/22
N2 - We investigate the photoelectrical and resistive switching properties of Pt/ZnO/Pt capacitor operated in unipolar mode under ultraviolet (UV) illumination. The oxygen photodesorption under UV illumination explains the photoconduction observed in initial and high resistance states. Meanwhile, oxygen readsorption at surface-related defects justifies the different photoresponses dynamics in both states. Finally, UV illumination significantly reduces the variations of resistance in high resistance state, set voltage and reset voltage by 58%, 33%, and 25%, respectively, stabilizing Pt/ZnO/Pt capacitor. Our findings in improved switching uniformity via UV light give physical insight into designing resistive memory devices.
AB - We investigate the photoelectrical and resistive switching properties of Pt/ZnO/Pt capacitor operated in unipolar mode under ultraviolet (UV) illumination. The oxygen photodesorption under UV illumination explains the photoconduction observed in initial and high resistance states. Meanwhile, oxygen readsorption at surface-related defects justifies the different photoresponses dynamics in both states. Finally, UV illumination significantly reduces the variations of resistance in high resistance state, set voltage and reset voltage by 58%, 33%, and 25%, respectively, stabilizing Pt/ZnO/Pt capacitor. Our findings in improved switching uniformity via UV light give physical insight into designing resistive memory devices.
UR - http://hdl.handle.net/10754/346977
UR - http://scitation.aip.org/content/aip/journal/apl/105/25/10.1063/1.4904396
UR - http://www.scopus.com/inward/record.url?scp=84920186400&partnerID=8YFLogxK
U2 - 10.1063/1.4904396
DO - 10.1063/1.4904396
M3 - Article
SN - 0003-6951
VL - 105
SP - 253111
JO - Applied Physics Letters
JF - Applied Physics Letters
IS - 25
ER -