S.W.Heo, H.I.Lee, H.J. Lee, S.M. Kim, K.Y. Kim, Y.J. Kim, S.Y.Kim, J.H.Kim, M.H. Yoon, B.H.Lee*, “Very low-temperature integrated complementary graphene barristor based inverter for thin film transistor applications," in press, Annalen der Physik (2018).