Accession Number:

AD1013312

Title:

Self Assembly and Pyroelectric Poling for Organics

Descriptive Note:

Technical Report,01 Apr 2012,31 Mar 2015

Corporate Author:

University of Washington SEATTLE United States

Personal Author(s):

• Jen, Alex K.

Report Date:

2015-07-06

Pagination or Media Count:

20.0

Abstract:

Insulating, dipolar and semiconducting molecular phosphonic acid PA self-assembled monolayers SAMs have been developed for applications in organic field-effect transistors OFETs and graphene transistors for low-power, low-cost flexible electronics. Multifunctional SAMs on ultrathin metal oxides, such as hafnium oxide and aluminum oxide, are shown to realize 1 enhanced performance of self-assembled monolayer field-effect transistors SAMFETs , 2 bottom-contact small-molecule n-type organic field effect transistors , 3 low operational voltage and high performance organic field effect memory transistors , and 4 systematic doping control of CVD graphene transistors. Key strategies of using electric field generated by pyroelectricity have been explored to efficiently pole highly efficient organic electro-optic OEO materials in thin films and nanophotonic waveguides. Through surface modification, novel pyroelectric elements such as pyroelectric crystals and ceramics are modified as conformal and detachable electric field source to study basic electrostatics and develop new device concepts for hybrid OEO nanophotonic platforms.

Descriptors:

• organic materials
• field effect transistors
• grapheme
• low power
• electronics
• aluminum oxides
• electric fields
• electrooptics
• thin films
• waveguides
• self assembled monolayers
• metal oxides

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE