Caesium telluride or Caesium telluridocaesium[1] is an inorganic salt with a chemical formula Cs2Te.

[2] Caesium telluride is used to make photo cathodes.

[3] Caesium telluride is the photoemissive material used in many laser-driven radio frequency (RF) electron guns like in the TESLA Test Facility (TTF).

[4] This inorganic compound–related article is a stub.

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