Low-Temperature Cross-Linking Benzocyclobutene Based Polymer Dielectric for Organic Thin Film Transistors on Plastic Substrates was written by Hallani, Rawad K.;Moser, Maximilian;Bristow, Helen;Jenart, Maud V. C.;Faber, Hendrik;Neophytou, Marios;Yarali, Emre;Paterson, Alexandra F.;Anthopoulos, Thomas D.;McCulloch, Iain. And the article was included in Journal of Organic Chemistry in 2020.Electric Literature of C6H4BrIO This article mentions the following:
The synthesis of a new benzocyclobutene based polymer, PSBBB, designed as a dielec. material for use in organic thin film transistors was reported. Compared to conventional benzocyclobutene-based materials, the introduction of a butoxide substituent at the 7-position of the benzocyclobutene pendant unit on the polymer allowed PSBBB to be cross-linked at temperatures of 120°, thus rendering it compatible with the processing requirements of flexible plastic substrates. The crosslinking behavior of PSBBB was studied by FTIR spectroscopy and DSC, demonstrating crosslinking of the polymer after curing at 120°. Bottom-gate bottom-contact organic thin film transistors were fabricated using PSBBB as dielec., affording a performance comparable to that of other dielec. polymeric materials. In the experiment, the researchers used many compounds, for example, 4-Bromo-2-iodophenol (cas: 207115-22-8Electric Literature of C6H4BrIO).
4-Bromo-2-iodophenol (cas: 207115-22-8) belongs to iodide derivatives. Organoiodine compounds occur widely in organic chemistry, but are relatively rare in nature. The C–I bond is the weakest of the carbon–halogen bonds. These bond strengths correlate with the electronegativity of the halogen, decreasing in the order F > Cl > Br > I. This periodic order also follows the atomic radius of halogens and the length of the carbon-halogen bond.Electric Literature of C6H4BrIO
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com