简介:Anon-axisholographiczoneplateoranoff-axisholographiczoneplateusedforthesiliconsolarcellwillhaveasolarenergyconversionfactorof2.5.Andthecombinationofthetwoplateswillhaveitsconversionfacftorof5.Especiallyfortheuseofsilverhalidephotographicemulsion,thecostcanbecutdowndramatically.