Wikipedia makes references to Herodatus, Diodorus, and Pausanias, all of whom were Greek (not to mention not all were even alive in that era), with Herodatus being the main source on the battle. But what kind of sources survive from the Persian perspective, if anything? And if nothing survives, does that say anything in of itself?
No Persian accounts survive, unfortunately, though I suspect that Xerxes would not have publicly commemorated a war that resulted in his own retreat. Some scholars actually doubt whether the Persians produced any historiography at all--the closest thing we possess is Darius I's monumental inscription at Behistun--but I'm inclined to believe that they did; Herodotus (7.100.1; 8.90.4) notes that Xerxes sometimes had scribes on hand to keep track of information, which would not be unusual for an ancient Near Eastern monarch.
If you can access it, I highly recommend Johannes Haubold's article "The Achaemenid empire and the sea," Mediterranean Historical Review 27, no. 1 (2012): 5-24. In short, Haubold argues that the Achaemenid kings, in campaigning beyond the "Bitter River" (the sea), were trying to emulate the legendary deeds of Gilgamesh and Sargon of Akkad and thus cast themselves in the same heroic image. It's a creative attempt to reconstruct the official Persian perspective.
Finally, don't forget that Herodotus himself was born in the Persian Empire and traveled extensively; he likely interviewed veterans on both sides of the conflict. Herodotus knows more about the Persians than many modern scholars seem to realize. :)