Executive Summary : | Optoelectronic materials with photophysical properties are a significant research area, with the applications of organic luminescent materials in full-color display panels and eco-friendly lighting sources attracting researchers since the work of Tang and Van slyke in 1987. High-performance organic luminescent materials like Organic Light-Emitting Diodes (OLEDs), Organic Photovolatic Cells (OPVs), and Organic Field Effect Transistors (OFETs) have been developed to improve luminance efficiency, device stability, and fabrication techniques. OLEDs have gained popularity in various industries, including the automotive industry and smart devices. Density functional theory (DFT) and time-dependent density functional theory (TD-DFT) studies have shown that electron donor-acceptor molecules like 1,4,5,8-naphthalenetetracarboxylic dianhydride (NTCDA) and three electron donor molecules pentacene, tetracene, and anthracene are efficient materials for OLED fabrication. Functionalized pyridines have been examined for hole transporting materials (HTMs) for optoelectronic applications, and computational studies on π-conjugated 4H-cyclopenta [2,1-b:3,4-b'] dithiophen-4-one dimer provide a protocol for designing new functionalized OLEDs with new acceptor molecules to enhance performance and lifetime. Doping OLEDs with main group metals and transition metals has been shown to increase thermal stability. |