Accession Number:

ADA621194

Title:

Coupling Graphene Sheets with Magnetic Nanoparticles for Energy Storage and Microelectronics

Descriptive Note:

Final rept. 14 May 2012-13 May 2015

Corporate Author:

WASHINGTON UNIV SEATTLE

Personal Author(s):

• Jen, Alex K.
• Lee, Kwang-Sup
• Attias, Andre-Jean

Report Date:

2015-08-13

Pagination or Media Count:

34.0

Abstract:

Low voltage self-assembled monolayer field-effect transistors SAMFETs that operate under an applied bias of less than -3 V and a high hole-mobility of 10-2 cm2 V-1 s-1 are reported. A self-assembled monolayer SAM with a quaterthiophene semiconducting core and a phosphonic acid binding group is used to fabricate SAMFETs on both high- voltage AlOx300 nm SiO2 and low-voltage HfO2 dielectric platforms. High performance is achieved through the enhanced SAM packing density via a heated assembly process and through the improved electrical contact between SAM semiconductor and metal electrodes. Enhanced electrical contact is obtained by utilizing a functional methyl-thio head group combined with thermal annealing post gold sourcedrain electrode deposition to facilitate the interaction between SAM and electrode. Furthermore, this SAMFET platform will be utilized as a monolayer memory transistor that has a charge trapping layer comprised of an interlayered magnetic nanoparticles and graphene oxide.

Descriptors:

• *ENERGY STORAGE
• *GRAPHENE
• *IRON OXIDES
• *MICROELECTRONICS
• *NANOPARTICLES
• ADSORPTION
• COUPLING(INTERACTION)
• DOPAMINE
• ELECTRIC CONTACTS
• ELECTRODES
• FIELD EFFECT TRANSISTORS
• LIGANDS
• SEMICONDUCTORS
• SHEETS
• SPACERS
• SYNTHESIS(CHEMISTRY)
• TRANSISTORS
• TRAPPING(CHARGED PARTICLES)

Subject Categories:

• Inorganic Chemistry
• Electrical and Electronic Equipment
• Energy Storage
• Miscellaneous Materials

Distribution Statement:

APPROVED FOR PUBLIC RELEASE