Title :
Lateral photo-dember effect in graphene
Author :
Chang-Hua Liu ; You-Chia Chang ; Seunghyun Lee ; Yaozhong Zhang ; Yafei Zhang ; Norris, Theodore B. ; Zhaohui Zhong
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Michigan, Ann Arbor, MI, USA
Abstract :
The photocurrent at graphene/metal junctions under femtosecond laser excitation is found to have its polarity fully determined by asymmetry in the electron-hole mobility; this suggests the existence of unexpected lateral photo-Dember effect in graphene.
Keywords :
Dember effect; electron mobility; graphene; high-speed optical techniques; hole mobility; optical materials; photoconductivity; C; electron-hole mobility asymmetry; femtosecond laser excitation; graphene-metal junctions; lateral photo-Dember effect; photocurrent; polarity;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
