Zhao Wen-kai, Cui Bin, Fang Chang-feng, Ji Guo-min, Zhao Jing-fen, Kong Xiang-ru, Zou Dong-qing, Jiang Xiao-hui, Li Dong-mei, Liu De-sheng
School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, People's Republic of China.
Phys Chem Chem Phys. 2015 Feb 7;17(5):3115-22. doi: 10.1039/c4cp04859h. Epub 2014 Dec 17.
Current rectification is found in oxygen-substituted zigzag graphyne nanoribbon/hydrogen-terminated zigzag graphene nanoribbon heterostructure junctions, from the application of nonequilibrium Green's function formalism combined with density functional theory. This behavior could be tuned by varying the number and location of oxygen atoms in the zigzag graphyne nanoribbon parts, and the rectification direction could be reversed due to the parity limitation tunneling effect. Moreover, an obvious negative differential resistance behavior is found and may be explained by two different mechanisms.
