The entangled triplet pair state in acene and heteroacene materials. by Yong, C, Musser, A, Bayliss, S, Lukman, S, Tamura, H, Bubnova, O, Hallani, R, Meneau, A, Resel, R, Maruyama, M, Hotta, S, Herz, L, Beljonne, D, Anthony, J, Clark, J, Sirringhaus, H