Abstract
Abstract For the purpose of elucidating charge transport in disordered organic materials, hole transport in the glassy state of 4-diphenylaminobenzaldehyde diphenylhydrazone (DPH), 4-diphenylaminobenzaldehyde methylphenylhydrazone (DPMH), and DPH doped with a small amount of 4-diethylaminobenzaldehyde diphenylhydrazone (DEH) has been studied. The hole drift mobility in the DPMH glass was approximately one-fifth of that in the DPH glass; this was attributed to a higher activation energy in terms of the Arrhenius formalism or to an increased width of the Gaussian density of states based on the site energy disorder model for the DPMH glass. The introduction of less than 1 mol% DEH into DPH resulted in a significant increase in activation energy or in the Gaussian width of the site energy distribution, which increased with increasing concentration of the dopant.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
