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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.)

High-Performance Ultrathin Molecular Rectifying Diodes Based on Organic/Inorganic Interface Engineering

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Author(s):
Santos Batista, Carlos Vinicius [1, 2] ; Merces, Leandro [1] ; Rodrigues Costa, Carlos Alberto [1] ; Starnini de Camargo, Davi Henrique [1] ; Bof Bufon, Carlos Cesar [3, 1, 2, 4]
Total Authors: 5
Affiliation:
[1] Brazilian Ctr Res Energy & Mat CNPEM, Brazilian Nanotechnol Natl Lab LNNano, BR-13083970 Campinas, SP - Brazil
[2] Sao Paulo State Univ UNESP, Postgrad Program Mat Sci & Technol POSMAT, BR-17033360 Bauru, SP - Brazil
[3] Univ Prebiteriana Mackenzie, Graphene & NanoMat Res Ctr MackGraphe, BR-01302907 Sao Paulo - Brazil
[4] Univ Campinas UNICAMP, Inst Chem, Cidade Univ Zeferino Vaz, BR-13083970 Campinas, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: ADVANCED FUNCTIONAL MATERIALS; v. 32, n. 6 OCT 2021.
Web of Science Citations: 0
Abstract

The bottom-up engineering of organic/inorganic hybrids is a crucial step toward advanced nanomaterial technologies. Understanding the energy level alignment at hybrid interfaces provides a valuable comprehension of the systems ` electronic properties - which are decisive for well-designed device applications. Here, active interfaces of ultrathin (approximate to 10 nm) molecular rectifying diodes that are capable of achieving a 4-order-magnitude rectification ratio along with 10 MHz cutoff frequency, both in a single nanodevice, are engineered. Atomic force microscopy and Kelvin-Probe analysis are employed to investigate the surface potential of the hybrid devices ` organic/inorganic interfaces, which comprise a metal (M) electrode in contact with a few-nanometer-thick copper phthalocyanine (CuPc) film. Thereby a nanometer-resolved quantification of the CuPc film work functions as well as the M/CuPc diode's space-charge densities are delivered. By recognizing that the molecular rectifying diode is a functional building block for nanoscale electronics, the findings address crucial advances to the design of high-performance molecular rectifiers based on organic/inorganic interface engineering. (AU)

FAPESP's process: 14/50906-9 - INCT 2014: in Functional Complex Materials
Grantee:Fernando Galembeck
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 14/25979-2 - Fabrication and characterization of devices and systems based on hybrid nanomembranes
Grantee:Carlos César Bof Bufon
Support Opportunities: Research Grants - Young Investigators Grants
FAPESP's process: 19/10188-3 - Space-charge distributions at interfaces of metal/insulator and metal/organics applied to hybrid capacitors based on nanomembranes
Grantee:Carlos Vinicius Santos Batista
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 18/18136-0 - Hybrid nanodevices: magnetoelectronic transport and development of sensors based on molecules/nanomembranes
Grantee:Leandro das Mercês Silva
Support Opportunities: Scholarships in Brazil - Post-Doctoral