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Enhanced interlayer neutral excitons and trions in trilayer van der Waals heterostructures
Chanyeol Choi, Jiahui Huang, Hung-Chieh Cheng +11
Vertically stacked van der Waals heterostructures constitute a promising platform for providing tailored band alignment with enhanced excitonic systems. Here we report observations…
Electric field induced strong enhancement of electroluminescence in multi-Layer MoS2
Dehui Li, Rui Cheng, Hailong Zhou +6
The layered transition metal dichalcogenides (TMDs) have attracted considerable interest due to their unique electronic and optical properties. Here we report electric field induce…
Thickness Scaling Effect on Interfacial Barrier and Electrical Contact to Two-Dimensional MoS2 Layers
Song-Lin Li, K. Komatsu, Shu Nakaharai +4
Understanding the interfacial electrical properties between metallic electrodes and low dimensional semiconductors is essential for both fundamental science and practical applicati…
Electroluminescence and photocurrent generation from atomically sharp WSe2/MoS2 heterojunction p-n diodes
Rui Cheng, Dehui Li, Hailong Zhou +7
The p-n diodes represent the most fundamental device building block for diverse optoelectronic functions, but are difficult to achieve in atomically thin transition metal dichalcog…
Variability Effects in Graphene: Challenges and Opportunities for Device Engineering and Applications
Guangyu Xu, Yuegang Zhang, Xiangfeng Duan +2
Variability effects in graphene can result from the surrounding environment and the graphene material itself, which form a critical issue in examining the feasibility of graphene d…
Edge effect on resistance scaling rules in graphene nanostructures
Guangyu Xu, Carlos M. Torres, Jianshi Tang +6
We report an experimental investigation of the edge effect on the room-temperature transport in graphene nanoribbon and graphene sheet (both single-layer and bilayer). By measuring…