?url_ver=Z39.88-2004&rft_id=10.1021%2Fjz400037j&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Kou&rft.aufirst=Liangzhi&rft.au=Kou%2C+Liangzhi&rft.issn=1948-7185&rft.title=Journal+of+Physical+Chemistry+Letters&rft.date=2013&rft.issue=8&rft.volume=4&rft.atitle=Intrinsic+charge+separation+and+tunable+electronic+band+gap+of+armchair+graphene+nanoribbons+encapsulated+in+a+double-walled+carbon+nanotube&rft.genre=article