Truxenone Triimide: Two‐Dimensional Molecular Arrangements of Triangular Molecules for Air Stable n‐Type Semiconductors. (23rd February 2022)

• Record Type: Journal Article
• Authors: Kumar, Sharvan; Koo, Yun Hee; Higashino, Tomohiro; Matsuda, Wakana; Ghosh, Samrat; Tsutsui, Yusuke; Suda, Masayuki; Imahori, Hiroshi; Suzuki, Katsuaki; Kaji, Hironori; Seki, Shu
• Is Part Of: Advanced Electronic Materials. Volume 8:Number 7(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-02-23
• Subjects: C3‐Symmetry -- Low‐LUMO -- photoconductivity -- triimides -- truxenone; Materials -- Electric properties -- Periodicals; Materials science -- Periodicals; Magnetic materials -- Periodicals; Electronic apparatus and appliances -- Periodicals; 537
• DOI: 10.1002/aelm.202101390
• Languages: English
• ISSNs: 2199-160X

Abstract

Abstract: The preparation of a new class of electron deficient organic compounds is of great interest for the development of high‐performance n‐type organic semiconductors. Herein, the facile synthetic protocol for the isolation of the first examples of truxenone triimide (TTI) is reported. The electrochemical analysis of the resulting TTIs confirms that the multi‐imidization helps in lowering the LUMO energy level, tailoring prerequisite optoelectronic and/or semiconducting properties. Their microscopic charge carrier transport properties and dynamics are screened by flash‐photolysis time‐resolved microwave conductivity measurements. Compound 2D exhibited an electron mobility of 0.27 cm 2 V −1 s −1 under ambient conditions. Abstract : A new family of imides supported on truxenone core is reported. They have been characterized by different analytical techniques. The single crystal exhibited strong π—π interaction. The electron affinity of these compounds was stablished by electrochemical analysis. The LUMO energy level of these compounds is found to be lower than the well‐known naphthalenediimide and perylenediimide. Their charge carrier transport properties are examined using flash‐photolysis time‐resolved microwave conductivity analysis.