Under the tutelage of Carlo Ancelotti, the French outfit went out of the competition at the quarter-final stage on away goals to Los Blaugranas.
PSG topped their group this season in impressive style to set up a tie with Bayer Leverkusen in the last 16, and the Brazil international is eager to better last term's showing.
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"However, we're playing a game of such importance so we study every detail, whether it's Leverkusen or a more famous club. We have to qualify.
"When you move to a big club like PSG, the responsibility as a player is always huge. The pressure is too. PSG have ambitious plans. It's up to us to live up to expectations."
Maxwell has played with Zlatan Ibrahimovic at Ajax, Inter, Barcelona and PSG but says the Swede is still capable of surprising him.
"I've known him since he was 19, and his thirst for victory is still intact today," he continued. "That's what suprises me. Although he has won many titles, he always wants more.
"Zlatan is an example to us all. To be cited as a friend is a pleasure for me. I'm very pleased that we've been playing together for all these years. It's rare in football."