H.C. Starck

H.C. Starck is an international company producing various metal powders, ceramic powders, chemicals and more.

The company had an active OLED program, developing a range of conductive polymers, under the Clevios brand, for use as the hole injection layer (HIL) in OLED displays. In September 2010, H.C. Starck sold the Clevios unit to Heraeus.