Vaporizing source for gas phase generation comprising Bi alloy containing alkali and/or alkali earth metal useful in production of organic light emitting diodes doped with Na and in photocathode production

摘要

Vaporizing source for gas phase generation comprising an alkali and/or alkali earth metal and a device containing the source. The source contains a Bi alloy and at least one alkali or alkali earth metal. The alloy can contain Na, K, Rb or Cs. An independent claim is included for a device containing the source.