An Extensive Review on Organic Light-Emitting Diode for Energy-Saving and Eco-friendly Technology

OLEDs have turned out to be the boon in the field of display technology and solid-state lighting because of compelling characteristics. They have remarkably emerged as an energy-saving technology to cope up with the increased demand for electricity and its generation. OLEDs are solid-state devices which consume very less power and have very low driving voltage. LEDs have grabbed so much of attention because of minuscule energy consumption, but this even newer technology is intriguing the interest of both manufacturers and consumers. OLED displays offer startling vivid pictures of high-definition resolution with vibrant and radiant colors and highly efficient illumination. Companies are investing significant financial resources for the development of future technology. So, there is a need of the hour to study in depth the milestones and challenges of this emerging technology. The critical areas on which the enormous valuable improvements are being carried out involve efficient current injection, light extraction techniques, efficiency, lifetime issues, and power consumption. The central idea of the review is to make the reader familiar with the structural and the operational details of the device, types of OLED and their drawbacks, material science, and important parameters governing the huge success of the OLED technology.