Pyrene Pyrimidine Derivatives: Synthesis, Characterization and Applications

In this thesis, development of new materials to the field of optoelectronics were studied. Optoelectronic devices based on organic semiconductors in order to replace their inorganic counterparts have been an increasing focus of research in recent decades. Organic light-emitting diodes (OLEDs) have gained commercial acceptance for their potential use in high-resolution displays and solid-state lighting. This general acceptance is despite the fact that organic electronic concepts (solar cells, transistors and detectors) are still in an early stage of development. OLEDs materials intrinsic advantages, like low power consumption as compared to LED counterparts, a tunable color range, ease of manufacturing, and flexibility have facilitated their exploitation for next generation consumer electronics. However, OLEDs have not fully actualized in the market due to limited life spans, especially in regard to blue color. Thus, in order for these devices to reach their full potential, significant advances need to be made to improve the fundamental limitations cited above. Based on literature references, blue light has been shown to lag behind red and green lights in terms of stability, and thus, applicability. In this research, compounds from electron deficient pyrimidine derivatives and electron rich pyrene moieties, which can provide deep blue fluorescence, were designed, synthesized and characterized. Characteristics such as thermostability, photostability, UV-absorbance, fluorescence, energy band gaps, Commission Internationale de l\u27éclairage (CIE) co-ordinates, and quantum yield were studied in this thesi