Interfacial Charge Transfer Circumventing Momentum Mismatch at Two-Dimensional van der Waals Heterojunctions

• Published in: Nano letters Vol. 17; no. 6; pp. 3591 - 3598
• Main Authors: Zhu, Haiming, Wang, Jue, Gong, Zizhou, Kim, Young Duck, Hone, James, Zhu, X.-Y
• Format: Journal Article
• Language: English
• Published: United States American Chemical Society 14.06.2017
• Subjects: interlayer exciton; charge recombination; transient reflectance; charge transfer; momentum conservation; 2D TMDC heterojunction

Interfacial charge separation and recombination at heterojunctions of monolayer transition metal dichalcogenides (TMDCs) are of interest to two-dimensional optoelectronic technologies. These processes can involve large changes in parallel momentum vector due to the confinement of electrons and holes...