The 2-0 triumph saw PSG win the quarterfinal 4-0 on aggregate.
Dembele was also named man-of-the-match afterwards and said: "We're so happy that we were able to win this game because it was really difficult, especially the second half. But we found a way to win, and we're through to the semi-finals, and we are delighted.
"On the first goal, I just wanted to place the ball. And on the second goal, Bradley (Barcola) did an incredible job."
Asked about comparisons with last season's Quadruple-winning team, Dembele was bullish.
He said, "I think we are at the same level.
"We have this desire to win trophies – we will try to go all the way to the end, we will play our game until the end of the competition."
