165 citations · 272 across the 6 of their papers we have counts for
6 papers
Active bialkali photocathodes on free-standing graphene substrates
Hisato Yamaguchi, Fangze Liu, Jeffrey DeFazio +10
The hexagonal structure of graphene gives rise to the property of gas impermeability, motivating its investigation for a new application: protection of semiconductor photocathodes…
Valence band electronic structure evolution of graphene oxide upon thermal annealing for optoelectronics
Hisato Yamaguchi, Shuichi Ogawa, Daiki Watanabe +19
We report valence band electronic structure evolution of graphene oxide (GO) upon its thermal reduction. Degree of oxygen functionalization was controlled by annealing temperatures…
Chemical Vapor Deposition Synthesized Atomically Thin Molybdenum Disulfide with Optoelectronic-Grade Crystalline Quality
Ismail Bilgin, Fangze Liu, Anthony Vargas +8
The ability to synthesize high-quality samples over large areas and at low cost is one of the biggest challenges during the developmental stage of any novel material. While chemica…
Spatially Resolved Photo-Excited Charge Carrier Dynamics in Phase-Engineered Monolayer MoS2
Hisato Yamaguchi, Jean-Christophe Blancon, Rajesh Kappera +9
A fundamental understanding of the intrinsic optoelectronic properties of atomically thin transition metal dichalcogenides (TMDs) is crucial for its integration into high performan…
Reduced graphene oxide thin films as ultrabarriers for organic electronics
Hisato Yamaguchi, Jimmy Granstrom, Wanyi Nie +8
Encapsulation of electronic devices based on organic materials that are prone to degradation even under normal atmospheric conditions with hermetic barriers is crucial for increasi…
A New Route to Fluorescent SWNT/Silica Nanocomposites: Balancing Fluorescence Intensity and Environmental Sensitivity
Juan G. Duque, Gautam Gupta, Laurent Cognet +3
We investigate the relationship between photoluminescence (PL) intensity and environmental sensitivity of surfactant-wrapped single walled carbon nanotubes (SWNTs). SWNTs were stud…