New indolo[1, 2‐c]quinazolines for single‐crystal field‐effect transistor: A united experimental and theoretical studies. (27th August 2021)

• Record Type: Journal Article
• Authors: Puli, Venkat Swamy; Kilaru, Suresh; Bhongiri, Yadagiri; Marri, Sreenath Reddy; Tripathi, Anuj; Chetti, Prabhakar; Chatterjee, Anindita; Vukoti, Kiran Kumar; Pola, Someshwar
• Is Part Of: Journal of physical organic chemistry. Volume 34:Number 12(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-08-27
• Subjects: π–π stacking -- indolo[1, 2‐c]quinazoline -- single‐crystal field‐effect transistors -- TDDFT studies; Chemistry, Physical organic -- Periodicals; 547.1
• DOI: 10.1002/poc.4276
• Languages: English
• ISSNs: 0894-3230

Abstract

Abstract: Here, we account the synthesis and characterization of a series of symmetrical fused heterocyclic aromatic hydrocarbons (HAHs) with an indolo[1, 2‐ c ]quinazoline (IQ) as the core moiety. All the new HAHs IQ series were systematically investigated by using various spectroscopic methods. Furthermore, their photo‐physical properties were supported by density functional theory (DFT) and time‐dependent density functional theory (TDDFT) studies to support the experimental findings. The tetramethyl‐substituted indolo[1, 2‐ c ]quinazoline (TMIQ) compound is shown to exhibit the shifted type of π – π stacking interactions, which render this series as a new semiconducting material. Single‐crystal‐based field‐effect transistor devices of TMIQ exhibited efficient charge transport behavior, giving a p‐channel field‐effect mobility of 0.25 cm 2 V −1 s −1 with an on/off ratio of 5 × 10 5 . Abstract : Synthesis of new fused heterocyclic aromatic hydrocarbon‐based IQ series and their single crystal field‐effect transistors have been shown.