Self Assembly and Pyroelectric Poling for Organics
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 06, 2015
- Accession Number
- AD1013312
Entities
People
- Alex K. Jen
Organizations
- University of Washington