Title of article :
Influence of the film deposition rate and humidity on the properties of thin CsI photocathodes
Author/Authors :
Nitti، نويسنده , , M.A. and Senesi، نويسنده , , G.S. and Liotino، نويسنده , , A. and Nappi، نويسنده , , E. and Valentini، نويسنده , , A. and Singh، نويسنده , , B.K.، نويسنده ,
Abstract :
Optical and photoemissive properties of CsI photocathodes (PCs) grown at two different evaporation rates (1 and 0.04 nm/s) have been investigated.
rface morphology of 300-nm-thick CsI films was also studied by means of atomic force microscopy. After 24-h exposure to humid air, properties of PCs grown at the slowest evaporation rate resulted affected more than those obtained at the fastest rate, making this latter more adequate for the photocathode preparation.
Keywords :
Evaporation rate , Optical properties , Humid-air exposure , surface morphology , CsI photocathodes , atomic force microscopy , Crystalline structure , Defect diffusion
Journal title :
Astroparticle Physics
