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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Gold nanoparticles functionalized with 4,4'-dithiobiphenyl blended with CuS in PMMA for switching memory devices

Full text
Author(s):
Cerra, Sara [1] ; Pica, Paride [1, 2] ; Congiu, Mirko [1, 2, 3] ; Boratto, M. H. [3] ; Graeff, C. F. O. [3, 4] ; Fratoddi, Ilaria [1, 2]
Total Authors: 6
Affiliation:
[1] Univ Rome Sapienza, Dept Chem, Ple A Moro 5, I-00185 Rome - Italy
[2] Graeff, C. F. O., UNESP Sao Paulo State Univ, Sch Sci, Dept Phys, BR-17033360 Bauru, SP, Brazil.Cerra, Sara, Univ Rome Sapienza, Dept Chem, Ple A Moro 5, I-00185 Rome - Italy
[3] UNESP Sao Paulo State Univ, Sch Sci, POSMAT Postgrad Program Mat Sci & Technol, BR-17033360 Bauru, SP - Brazil
[4] UNESP Sao Paulo State Univ, Sch Sci, Dept Phys, BR-17033360 Bauru, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS; v. 31, n. 15 JUN 2020.
Web of Science Citations: 0
Abstract

A switching memory device based on functionalized gold nanoparticles (AuNPs) and hexagonal copper sulfide nanocrystals (CuS), finely blended in polymethylmethacrylate matrix (PMMA), is herein presented. A two-electrode sandwich architecture has been implemented using aluminum top and bottom electrodes and a polymeric insulating layer based on PMMA/AuNPs/CuS. The device showed memory storage capabilities suitable for (Read Only Memory) ROM applications and behaves as a typical Write-Once, Read-Many-times (WORM) device. The results obtained with the blend containing AuNPs and/or CuS were compared with pure PMMA. By a voltage ramp in the range +/- 9 V, it was possible to permanently change the electrical resistance between the electrodes yielding an ON/OFF current ratio above 10(5)with long-term stability over the whole experiment duration (30 days). (AU)

FAPESP's process: 13/07396-7 - New Materials for Dye-sensitized Solar Cells
Grantee:Mirko Congiu
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 17/20809-0 - Study of organic devices for application in bioelectronics
Grantee:Miguel Henrique Boratto
Support Opportunities: Scholarships in Brazil - Post-Doctoral