This is a photograph of an organic light-emitting diode (OLED). OLEDs are being used in the newest generation of television screens. An OLED is comprised of a thin organic film held between conductors. When electrical current is applied to the conductors, the film emits a bright light. Because OLEDs emit light, OLED-based displays do not require backlighting. That's why these displays are both thinner and more efficient than today’s common LCD screens, which require an additional internal light source.
In this classroom activity, students learn about organic light-emitting diodes (OLEDs). During the activity students make OLEDs, learn how OLEDs work, and discover what devices currently use OLEDs. Students also learn about spin coating since a spin coater is used to create the OLEDs.
In this cart demo, visitors learn about organic light-emitting diodes (OLEDs). Prior to presenting this demo, an OLED should be made in a chemistry lab. This OLED is shown to visitors during the cart demo. During the demo, visitors learn how OLEDs work and what devices currently use OLEDs. Additionally, this activity includes a demonstration of spin coating, which is a process used to make OLEDs.