Adebayor scored the crucial away goal as the Gunners came from a goal down.
“It puts us in a great position, but we want to qualify at home and to repeat the type of performance we did in the second half,” said the Frenchman.
“I am confident, the quality we have shown added to the mental strength and desire we have shown.
“But we know Villarreal are a good team as well, so we will be on our toes and focused at Emirates.”
Wenger added: “This team has shown the whole season they are mentally very strong and when they have backs to the wall, these young players always find an answer which is very interesting for a young team.
“I believe we have created momentum. We are a very young team, but are capable to focus.
“We have shown with the consistency we have in the [English] championship that we are able to concentrate every three days, and at that age, that is a big quality.”
