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| 001 | 909556 | ||
| 005 | 20230123110646.0 | ||
| 024 | 7 | _ | |a 10.1021/acs.nanolett.2c01510 |2 doi |
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| 100 | 1 | _ | |a Lu, Yan |0 P:(DE-Juel1)180451 |b 0 |e Corresponding author |
| 245 | _ | _ | |a Counting Point Defects at Nanoparticle Surfaces by Electron Holography |
| 260 | _ | _ | |a Washington, DC |c 2022 |b ACS Publ. |
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| 520 | _ | _ | |a Metal oxide nanoparticles exhibit outstanding catalytic properties, believed to be related to the presence of oxygen vacancies at the particle’s surface. However, little quantitative information is known about concentrations of point defects inside and at surfaces of these nanoparticles, due to the challenges in achieving an atomically resolved experimental access. By employing off-axis electron holography, we demonstrate, using MgO nanoparticles as an example, a methodology that discriminates between mobile charge induced by electron beam irradiation and immobile charge associated with deep traps induced by point defects as well as distinguishes between bulk and surface point defects. Counting the immobile charge provides a quantification of the concentration of F2+ centers induced by oxygen vacancies at the MgO nanocube surfaces. |
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| 700 | 1 | _ | |a Zheng, Fengshan |0 P:(DE-Juel1)165965 |b 1 |e Corresponding author |
| 700 | 1 | _ | |a Lan, Qianqian |0 P:(DE-Juel1)173944 |b 2 |
| 700 | 1 | _ | |a Schnedler, Michael |0 P:(DE-Juel1)143949 |b 3 |e Corresponding author |
| 700 | 1 | _ | |a Ebert, Philipp |0 P:(DE-Juel1)130627 |b 4 |
| 700 | 1 | _ | |a Dunin-Borkowski, Rafal E. |0 P:(DE-Juel1)144121 |b 5 |
| 773 | _ | _ | |a 10.1021/acs.nanolett.2c01510 |g p. acs.nanolett.2c01510 |0 PERI:(DE-600)2048866-X |n 17 |p 6936–6941 |t Nano letters |v 22 |y 2022 |x 1530-6984 |
| 856 | 4 | _ | |u https://juser.fz-juelich.de/record/909556/files/acs.nanolett.2c01510-2.pdf |
| 856 | 4 | _ | |y Published on 2022-08-30. Available in OpenAccess from 2023-08-30. |u https://juser.fz-juelich.de/record/909556/files/Counting%20point%2C%20Preprint_NanoLett22_6936.pdf |
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