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| Home > Publications database > Moisture Effect on the Threshold Switching of TOPO-Stabilized Sub-10 nm HfO 2 Nanocrystals in Nanoscale Devices > print |
| Home > Publications database > Moisture Effect on the Threshold Switching of TOPO-Stabilized Sub-10 nm HfO 2 Nanocrystals in Nanoscale Devices > print |
| 001 | 910212 | ||
| 005 | 20230123110659.0 | ||
| 024 | 7 | _ | |a 10.1021/acs.jpcc.2c06303 |2 doi |
| 024 | 7 | _ | |a 2128/32895 |2 Handle |
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| 037 | _ | _ | |a FZJ-2022-03689 |
| 082 | _ | _ | |a 530 |
| 100 | 1 | _ | |a Maiti, Sonam |0 P:(DE-Juel1)178908 |b 0 |
| 245 | _ | _ | |a Moisture Effect on the Threshold Switching of TOPO-Stabilized Sub-10 nm HfO 2 Nanocrystals in Nanoscale Devices |
| 260 | _ | _ | |a Washington, DC |c 2022 |b Soc. |
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| 520 | _ | _ | |a The enduring demand for ever-increasing storage capacities inspires the development of new few nanometer-sized, high-performance memory devices. In this work, tri-n-octylphosphine oxide (TOPO)-stabilized sub-10 nm monoclinic HfO2 nanocrystals (NC) with a rod-like and spherical shape are synthesized and used to build up microscale and nanoscale test devices. The electrical characterization of these devices studied by cyclic current–voltage measurements reveals a redox-like behavior in ambient atmosphere and volatile threshold switching in vacuum. By employing a thorough spectroscopic and surface analysis (FT-IR and NMR spectroscopy and XPS), the origin of this behavior was elucidated. While the redox behavior is enabled by residual moisture present during clean-up of the NC and thin film preparation, which leads to a partial desorption of TOPO from the NC surface, threshold switching is obtained for dry TOPO-stabilized HfO2 NC in microchannel as well as in nanoelectrode devices addressing only a few sub-10 nm TOPO-stabilized HfO2 NC. The results show that integration of sub-10 nm HfO2 NC in nanoscale devices is feasible to build up switching elements. |
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| 700 | 1 | _ | |a Ohlerth, Thorsten |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Schmidt, Niclas |0 P:(DE-Juel1)179230 |b 2 |
| 700 | 1 | _ | |a Aussen, Stephan |0 P:(DE-Juel1)169457 |b 3 |
| 700 | 1 | _ | |a Waser, Rainer |0 P:(DE-HGF)0 |b 4 |
| 700 | 1 | _ | |a Simon, Ulrich |0 P:(DE-HGF)0 |b 5 |
| 700 | 1 | _ | |a Karthäuser, Silvia |0 P:(DE-Juel1)130751 |b 6 |e Corresponding author |
| 773 | _ | _ | |a 10.1021/acs.jpcc.2c06303 |g Vol. 126, no. 43, p. 18571 - 18579 |0 PERI:(DE-600)2256522-X |n 43 |p 18571 - 18579 |t The journal of physical chemistry |v 126 |y 2022 |x 1932-7447 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/910212/files/Invoice_APC600357898.pdf |
| 856 | 4 | _ | |y Published on 2022-10-23. Available in OpenAccess from 2023-10-23. |u https://juser.fz-juelich.de/record/910212/files/221007_TOPO_NC%20manuscript.pdf |
| 856 | 4 | _ | |y Restricted |u https://juser.fz-juelich.de/record/910212/files/acs.jpcc.2c06303.pdf |
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