ABSTRACT

This chapter discusses the fundamental and technological advances in optoelectronics packaging & materials lab and other labs in developing a new class of nanocomposites for optical diffuse reflectors used in advanced general light-emitting diodes (LED) lighting, Liquid crystal display (LCD) display backlighting, solar cells and other energy related applications. The market of energy related devices, including LED and solar cells, has grown rapidly in the past few decades because of the global trends toward more environmental friendly technology. The applicability of the omnidirectional mirrors to LEDs is limited due to the insulating electrical characteristics of the constituent materials. Modeling technique is necessary to evaluate polymer-filler composites in the role of diffuse reflectors in LEDs and solar cells and to optimize their reflection properties. LED packages are conventionally mounted on a printed circuit board in the form of array by surface mount technology and then attached on a heat sink, to manufacture a LED array unit used in a LCD backlight.