journal article·2019-08-23Open access

Nanoimaging of Organic Charge Retention Effects: Implications for Nonvolatile Memory, Neuromorphic Computing, and High Dielectric Breakdown Devices

Yingjie Zhang, Jun Kang, Olivier Pluchery, Louis Caillard, Yves J. Chabal, Lin-Wang Wang, Javier Fernandez Sanz, Miquel Salmeron

ACS Applied Nano Materials· Volume 2· Issue 8

Abstract

While a large variety of organic and molecular materials have been found to exhibit charge memory effects, the underlying mechanism is not well-understood, which hinders rational device design. Here, we study the charge retention mechanism of a nanoscale memory system, an organic monolayer on a silicon substrate, with Au nanoparticles on top serving as the electrical contact. Combining scanning probe imaging/manipulation and density functional simulations, we observe stable charge retention effects in the system and attributed it to polaron effects at the amine functional groups. Our findings can pave the way for applications in nonvolatile memory, neuromorphic computing, and high dielectric breakdown devices.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Advanced Memory and Neural Computing · Semiconductor materials and devices · Organic Electronics and Photovoltaics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Materials Science and Engineering, University of Illinois, Urbana, Illinois 61801, United States

Frederick Seitz Materials Research Laboratory, University of Illinois, Urbana, Illinois 61801, United States

Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States

Sorbonne Université, UPMC Univ Paris 06, CNRS-UMR 7588, Institut des NanoSciences de Paris, F-75005 Paris, France

Laboratory for Surface and Nanostructure Modification, Department of Materials Science and Engineering, University of Texas at Dallas, 800 West Campbell Road, Dallas, Texas 75080, United States

Department Physical Chemistry, Universidad de Sevilla, 41012 Seville, Spain

Department of Materials Science and Engineering, University of California, Berkeley, California 94720, United States

Funding

Basic Energy Sciences · University of Illinois at Urbana-Champaign · National Science Foundation · Marie Curie FP7 ILSES project · Nanotwinning FP7

References (30)

Show source-provided references
1. 10.1126/sciadv.aas953010.1126/sciadv.aas9530 ↗
2. 10.1038/nature2010210.1038/nature20102 ↗
3. 10.1038/ncomms241110.1038/ncomms2411 ↗
4. 10.1038/ncomms1496410.1038/ncomms14964 ↗
5. 10.1103/PhysRevB.87.20511710.1103/PhysRevB.87.205117 ↗
6. 10.1021/acs.nanolett.6b0413910.1021/acs.nanolett.6b04139 ↗
7. 10.1038/nmat130910.1038/nmat1309 ↗
8. 10.1126/science.286.5444.155010.1126/science.286.5444.1550 ↗
9. 10.1002/smll.20060010110.1002/smll.200600101 ↗
10. 10.1038/nnano.2015.25510.1038/nnano.2015.255 ↗
11. 10.1039/C4CS00377B10.1039/C4CS00377B ↗
12. 10.1021/jacs.7b1281810.1021/jacs.7b12818 ↗
13. 10.1038/nchem.101310.1038/nchem.1013 ↗
14. 10.1038/nmat485610.1038/nmat4856 ↗
15. 10.1002/admi.20150036110.1002/admi.201500361 ↗
16. 10.1038/s41586-018-0275-z10.1038/s41586-018-0275-z ↗
17. 10.1021/nl503782s10.1021/nl503782s ↗
18. 10.1021/nn403750h10.1021/nn403750h ↗
19. 10.1021/acs.nanolett.5b0045410.1021/acs.nanolett.5b00454 ↗
20. 10.1021/jp104183m10.1021/jp104183m ↗
21. 10.1039/C5CP05943G10.1039/C5CP05943G ↗
22. 10.1021/acs.nanolett.5b0142910.1021/acs.nanolett.5b01429 ↗
23. 10.1021/acsnano.5b0467710.1021/acsnano.5b04677 ↗
24. 10.1021/acsnano.6b0827810.1021/acsnano.6b08278 ↗
25. 10.1038/srep1901410.1038/srep19014 ↗
26. 10.1038/ncomms1192410.1038/ncomms11924 ↗
27. 10.1021/nl072058i10.1021/nl072058i ↗
28. 10.1016/j.commatsci.2005.04.01010.1016/j.commatsci.2005.04.010 ↗
29. 10.1103/PhysRevLett.81.126310.1103/PhysRevLett.81.1263 ↗
30. 10.1016/j.susc.2009.03.02610.1016/j.susc.2009.03.026 ↗