It could be done, but it would require a really large and/or complex (steering) array to produce the high (and convenient) sustained power a DCFC provides. Plus the array would be wasted if there were no car plugged in whenever it was outputting power, unless it goes to the grid. And there still needs to be handshaking and voltage regulation at a minimum.Would be interesting of one could charge directly dc to dc from solar with minimal electronics between.
Maybe it could work, but offhand an array charging an energy buffer of some sort makes more sense to me. Unless of course the array is also used to power the grid, in which case charging a car would probably be a secondary function. Then you might as well have the car just plug in somewhere on the grid at a convenient DCFC station. That way you don't have to go to the array to tap into the power.