My notes says "Increasing the voltage drives increasingly more energetic electrons back until finally none of them are able to leave the metal surface and the ammeter reads zero. The voltage at which this occurs is called the stopping voltage $V_s$ and is a measure of the maximum kinetic energy of the photoelectrons emitted."
The part I believe may be incorrect is where they say 'none of them are able to leave the metal surface and the ammeter reads zero'. Because other sources say stopping voltage is 'the voltage which just prevents electrons from arriving at the anode.'
Are my notes incorrect? Thanks for the clarification..