This is not a thesis sentence. You are stating a fact rather than making a bold statement that gives readers clues about what you will be talking about. It is too narrow. Unless your sole focus is the Nobel Peace Prize that he won in 2002, it is not an appropriate thesis. If your topic were George Washington for example, you would not say: George Washington was the first president. That would not be a thesis sentence. A more appropriate thesis would be: George Washington accomplished many things during his time as the first President of the United States. Then you would continue by saying what he accomplished and the essay would be about his presidency. Now just apply that to Jimmy Carter.