Zhang, Qingyang; Barrett, Brandon; Lee, Taein; Mukhopadhyaya, Tushita; Lu, Chengchangfeng; Plunkett, Evan C.; Kale, Tejaswini; Chi, Chen; Livi, Kenneth J. T.; McGuiggan, Patricia; Reich, Daniel H.; Thon, Susanna; Bragg, Arthur E.; Katz, Howard E. published an article in 2021. The article was titled 《Maximized Hole Trapping in a Polystyrene Transistor Dielectric from a Highly Branched Iminobis(aminoarene) Side Chain》, and you may find the article in ACS Applied Materials & Interfaces.Computed Properties of C9H11BrO3 The information in the text is summarized as follows:
We synthesized highly branched and electron-donating side chain subunits and attached them to polystyrene (PS) used as a dielec. layer in a pentacene field-effect transistor. The influence of these groups on dielec. function, charge retention, and threshold voltage shifts (ΔVth) depending on their positions in dielec. multilayers was determined We compared the observations made on an N-perphenylated iminobisaniline side chain with those from the same side chains modified with ZnO nanoparticles and with an adduct formed from tetracyanoethylene (TCNE). We also synthesized an analog in which six methoxy groups are present instead of two amine nitrogens. At 6 mol % side chain, hopping transport was sufficient to cause shorting of the gate, while at 2 mol %, charge trapping was observable as transistor threshold voltage shifts (ΔVth). We created three types of devices: with the substituted PS layer as single-layer dielec., on top of a cross-linked PS layer but in contact with the pentacene (bilayers), and sandwiched between two PS layers in trilayers. Especially large bias stress effects and ΔVth, larger than those in the case of the hexamethoxy and previously studied dimethoxy analogs, were observed in the second case, and the effects increased with the increasing electron-donating properties of the modified side chains. The highest ΔVth was consistent with a majority of the side chains stabilizing the trapped charge. Trilayer devices showed decreased charge storage capability compared to previous work in which we used less donating side chains but in higher concentrations The ZnO and TCNE modifications resulted in slightly more and less neg. ΔVth, resp., when the side chain polystyrene was not in contact with the pentacene and isolated from the gate electrode. The results indicate a likely maximum combination of mol. charge stabilizing activity and side chain concentration that still allows gate dielec. function. The experimental part of the paper was very detailed, including the reaction process of 1-Bromo-3,4,5-trimethoxybenzene(cas: 2675-79-8Computed Properties of C9H11BrO3)
1-Bromo-3,4,5-trimethoxybenzene(cas: 2675-79-8) is an important raw material and intermediate used in organic synthesis, pharmaceuticals, agrochemicals and dyestuff.Computed Properties of C9H11BrO31-Bromo-3,4,5-trimethoxybenzene can be used to synthesize analogs of HA14-1, which shows promising anticancer properties.
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary