The vacuum web coater consisted of a cylinder vacuum chamber,2.2mlong and 1.2 m in diameter,three extended
magnetron sputtering systems,an ion source with aclosed electron drift and a winding system.
Magnetronswith
cylindricalrotatingcathodes(1600mmlongand89mmin
diameter)wereusedforTiO2 and Agdeposition.Such
magnetronshaveahighefficiencyoftargetutilization(up
to 80%).FortheZnO:Gafilmdepositionaplanarmagne-
tron wasused,sincethefabricationofatubularceramic
cathode iseconomicallyinefficient.AplanarZnO:Ga2O3
(3.5 at%)targethasanareaof1600140mm2. Forthe
SiO2 layerdepositionthecylindricalmagnetronwithaTi
target wasreplacedwithaplanaronewithaSitarget.The
thicknessnon-uniformityinthedepositedcoatingovera
length of1200mmwas 72–5%. Thecoatingsweredepo-
sitedatroomtemperatureona100 μm-thickPETfilm
(TasmaLtd,Russia)andona100 μm-thickpolyethylene
(PE) film,traditionallyusedingreenhouses.Samplessized
400200mm2 wereusedtofindtheoptimalstructure
and investigatethelow-Ecoatingcharacteristics.Thelow-
E coatingsamplessizedupto1.240 m2 werefabricated
for full-scaletestingintransparentconstructionsofbuild-
ings andgreenhouses.