Penghong Ci
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View article: A Bionic Flapping Magnetic‐Dipole Resonator for ELF Cross‐Medium Communication
A Bionic Flapping Magnetic‐Dipole Resonator for ELF Cross‐Medium Communication Open
Extremely low‐frequency (ELF) electromagnetic (EM) waves adeptly propagate in harsh cross‐medium environments, overcoming rapid decay that hinders high‐frequency counterparts. Traditional antennas, however, encounter challenges concerning …
View article: A dragonfly-wing-like energy harvester with enhanced magneto-mechano-electric coupling
A dragonfly-wing-like energy harvester with enhanced magneto-mechano-electric coupling Open
Energy harvesting is crucial for sustainable micropower sources, but conventional energy harvesters have limited power-generation capabilities. To address this, we introduce a novel dragonfly-wing-like energy harvester with four wing-like …
View article: Ultrafast Optical Nanoscopy of Carrier Dynamics in Silicon Nanowires
Ultrafast Optical Nanoscopy of Carrier Dynamics in Silicon Nanowires Open
Carrier distribution and dynamics in semiconductor materials often govern their physical properties that are critical to functionalities and performance in industrial applications. The continued miniaturization of electronic and photonic d…
View article: Breaking Rotational Symmetry in Supertwisted WS<sub>2</sub> Spirals via Moiré Magnification of Intrinsic Heterostrain
Breaking Rotational Symmetry in Supertwisted WS<sub>2</sub> Spirals via Moiré Magnification of Intrinsic Heterostrain Open
Twisted stacking of van der Waals materials with moiré superlattices offers a new way to tailor their physical properties via engineering of the crystal symmetry. Unlike well-studied twisted bilayers, little is known about the overall symm…
View article: Near-field ultrafast nanoscopy of carrier dynamics in silicon nanowires
Near-field ultrafast nanoscopy of carrier dynamics in silicon nanowires Open
Carrier distribution and dynamics in semiconductor materials often govern their physics properties that are critical to functionalities and performance in industrial applications. The continued miniaturization of electronic and photonic de…
View article: Ultrafast optical nanoscopy of carrier dynamics in silicon nanowires
Ultrafast optical nanoscopy of carrier dynamics in silicon nanowires Open
Carrier distribution and dynamics in semiconductor materials often govern their physical properties that are critical to functionalities and performance in industrial applications. The continued miniaturization of electronic and photonic d…
View article: Giant Isotope Effect of Thermal Conductivity in Silicon Nanowires
Giant Isotope Effect of Thermal Conductivity in Silicon Nanowires Open
Isotopically purified semiconductors potentially dissipate heat better than their natural, isotopically mixed counterparts as they have higher thermal conductivity (κ). But the benefit is low for Si at room temperature, amounting to only ∼…
View article: Laser enabled ultra-high doping patterns in graphene for rewritable photodetectors
Laser enabled ultra-high doping patterns in graphene for rewritable photodetectors Open
Chemical doping has been extensively studied for control of charge carrier polarity and concentration in two-dimensional (2D) van der Waals materials. However, conventional routes by substitutional doping or absorbed molecules suffer from …
View article: Metallo‐Hydrogel‐Assisted Synthesis and Direct Writing of Transition Metal Dichalcogenides
Metallo‐Hydrogel‐Assisted Synthesis and Direct Writing of Transition Metal Dichalcogenides Open
Two dimensional (2D) transition metal dichalcogenides (TMDCs) have attracted interest for their compelling nanoscale new properties and numerous potential applications including fast optoelectronic devices, ultrathin photovoltaics, and hig…
View article: Pressurizing Field-Effect Transistors of Few-Layer MoS<sub>2</sub> in a Diamond Anvil Cell
Pressurizing Field-Effect Transistors of Few-Layer MoS<sub>2</sub> in a Diamond Anvil Cell Open
Hydrostatic pressure applied using diamond anvil cells (DAC) has been widely explored to modulate physical properties of materials by tuning their lattice degree of freedom. Independently, electrical field is able to tune the electronic de…