An Insight into the Synthesis and Optoelectronic Properties of Thiophene-2,4,6-Triaryl Pyridine-Based D-A-D Type π-Conjugated Functional Materials

• Published in: Progress in Polymer Research for Biomedical, Energy and Specialty Applications pp. 301 - 334
• Main Authors: Viprabha, K., Udaya Kumar, D.
• Format: Book Chapter
• Language: English
• Published: United Kingdom CRC Press 2023; Taylor & Francis Group
• Edition: 1
• Subjects: LUMO Energy; NLO Property; TGA Plot; Central Pyridine; Compound P1; Polymer P1; Ethyl Carbazole; TD DFT Calculation; Compound M1; LUMO Level; LUMO Energy Level; Organic Field - Effect Transistors; Homo Level; Triphenylamine Unit; OA Configuration; LT Value; NLR; Perylene Diimides; LUMO Distribution; Homo Energy Level; PVP Content; Wittig Salt; Input Fluence; PLA Composite
• ISBN: 9781032061023; 9781032061009; 1032061022; 1032061006
• DOI: 10.1201/9781003200710-15

Owing to the easy structural modifications and solution processability, π-conjugated functional materials have drawn enormous consideration in flexible and large-area optoelectronic devices. Most of the applications such as flexible displays, solid-state lighting sources, organic solar cells (OSCs) and nonlinear optical (NLO) devices are still in the developing stage due to the lack of ideal materials that exhibit the processability and an ability to interface with other materials. A definite correlation between the structure and electro-optical property of some thiophene based heterocycles is yet to be clearly interpreted. In this view, this chapter emphases on the synthesis of a new class of thiophene-based donor-acceptor (D-A) heterocycles for optoelectronic applications. This chapter briefly describes the history, conduction in conjugated systems, the D-A concept and the design strategy of the compounds. It also throws light on the synthetic methodology and further, with the help of experimental results and the DFT studies, it elaborately accounts on the molecular structure and the property relation (optical, electrochemical, thermal and nonlinear optical properties), providing a new approach for better performance.