Mitsumasa Iwamoto
YOU?
Author Swipe
View article: Electric power transmission in triboelectric generators activated through dipolar depolarization
Electric power transmission in triboelectric generators activated through dipolar depolarization Open
The entropy change causing dipolar depolarization is proposed as an origin of electrical power generation in triboelectric generators using polar materials. Rubbing mechanically forces permanent dipoles in materials to become orientational…
View article: Evaluation of a same-metal PCB-based three-electrode system <i>via</i> impedance studies using potassium ferricyanide
Evaluation of a same-metal PCB-based three-electrode system <i>via</i> impedance studies using potassium ferricyanide Open
We report for the first time the successful acquisition of electrochemical impedance spectroscopy data using an unconventional same-metal PCB-based three-electrode system.
View article: A Review of Contact Electrification at Diversified Interfaces and Related Applications on Triboelectric Nanogenerator
A Review of Contact Electrification at Diversified Interfaces and Related Applications on Triboelectric Nanogenerator Open
The triboelectric nanogenerator (TENG) can effectively collect energy based on contact electrification (CE) at diverse interfaces, including solid–solid, liquid–solid, liquid–liquid, gas–solid, and gas–liquid. This enables energy harvestin…
View article: Dipolar Energy as an Electrical Power Source: Dipole Rotation in Solids Enables a New Source for the Triboelectric Generator
Dipolar Energy as an Electrical Power Source: Dipole Rotation in Solids Enables a New Source for the Triboelectric Generator Open
Herein, the concept of triboelectric generators using dipolar polarization energy as an electrical power source is introduced. Dipolar polarization energy is stored in dielectric films by rubbing, and is conveyed to external circuits for u…
View article: Novel same-metal three electrode system for cyclic voltammetry studies
Novel same-metal three electrode system for cyclic voltammetry studies Open
Conventional three-electrode systems used in electrochemical measurement demand time-consuming and maintenance intensive procedures to enable accurate and repeatable electrochemical measurements.
View article: Langmuir–Blodgett Graphene-Based Films for Algal Biophotovoltaic Fuel Cells
Langmuir–Blodgett Graphene-Based Films for Algal Biophotovoltaic Fuel Cells Open
The prevalence of photosynthesis, as the major natural solar energy transduction mechanism or biophotovoltaics (BPV), has always intrigued mankind. Over the last decades, we have learned to extract this renewable energy through continuousl…
View article: Consequence of aging at Au/HTM/perovskite interface in triple cation 3D and 2D/3D hybrid perovskite solar cells
Consequence of aging at Au/HTM/perovskite interface in triple cation 3D and 2D/3D hybrid perovskite solar cells Open
Perovskite solar cells (PSCs) expressed great potentials for offering a feasible alternative to conventional photovoltaic technologies. 2D/3D hybrid PSCs, where a 2D capping layer is used over the 3D film to avoid the instability issues as…
View article: Visualizing Positive and Negative Charges of Triboelectricity Generated on Polyimide Film
Visualizing Positive and Negative Charges of Triboelectricity Generated on Polyimide Film Open
Triboelectric generator is attracting much attention as a power source of electronics application. Electromotive force induced by rubbing is a key for triboelectric generator. From dielectric physics point of view, there are two microscopi…
View article: Recent progress in the development of portable high voltage source based on triboelectric nanogenerator
Recent progress in the development of portable high voltage source based on triboelectric nanogenerator Open
Triboelectric nanogenerators (TENGs), which can transfer surrounding environmental mechanical stimuli into electricity effectively, could be an ideal candidate as a sustainable power supply for electrical devices. High voltage TENG is one …
View article: Avalanche charge generation in anhydrous glucosides excited by an external electric field
Avalanche charge generation in anhydrous glucosides excited by an external electric field Open
Glycolipids are components of cellular membranes comprising a hydrophobic lipid tail and one or more hydrophilic sugar heads, and are widely associated with the fields of life science and biochemistry. Due to the hygroscopic nature of suga…
View article: Research trend in thermally stimulated current method for development of materials and devices in Japan
Research trend in thermally stimulated current method for development of materials and devices in Japan Open
Thermally stimulated current (TSC) measurement is widely used in a variety of research fields, i.e., physics, electronics, electrical engineering, chemistry, ceramics, and biology. TSC is short-circuit current that flows owing to the displ…
View article: Resistive switching in graphene-organic device: Charge transport properties of graphene-organic device through electric field induced optical second harmonic generation and charge modulation spectroscopy
Resistive switching in graphene-organic device: Charge transport properties of graphene-organic device through electric field induced optical second harmonic generation and charge modulation spectroscopy Open
Graphene-based resistive random access memory devices is a promising non-volatile memory technology that combines low operation voltage and power, extremely fast write/erase speeds, excellent reliability and storage capacity of RRAM with l…
View article: Study of carrier energetics in ITO/P(VDF-TrFE)/pentacene/Au diode by using electric-field-induced optical second harmonic generation measurement and charge modulation spectroscopy
Study of carrier energetics in ITO/P(VDF-TrFE)/pentacene/Au diode by using electric-field-induced optical second harmonic generation measurement and charge modulation spectroscopy Open
By using electric-field-induced optical second harmonic generation (EFISHG) measurement and charge modulation spectroscopy (CMS), we studied carrier behavior and polarization reversal in ITO/ poly(vinylidene fluoride trifluoroethylene) (P(…
View article: Interfacial charge trapping in the polymer solar cells and its elimination by solvent annealing
Interfacial charge trapping in the polymer solar cells and its elimination by solvent annealing Open
The PCDTBT:PCBM solar cells were fabricated adopting a tandem layer approach to investigate the critical issues of charge trapping, radiation absorption, and efficiency in polymer solar cells. This layered structure was found to be a sourc…
View article: Measuring the Electronic Properties of DNA-Specific Schottky Diodes Towards Detecting and Identifying Basidiomycetes DNA
Measuring the Electronic Properties of DNA-Specific Schottky Diodes Towards Detecting and Identifying Basidiomycetes DNA Open
The discovery of semiconducting behavior of deoxyribonucleic acid (DNA) has resulted in a large number of literatures in the study of DNA electronics. Sequence-specific electronic response provides a platform towards understanding charge t…
View article: Analysis of interfacial energy states in Au/pentacene/polyimide/indium–zinc-oxide diodes by electroluminescence spectroscopy and electric-field-induced optical second-harmonic generation measurement
Analysis of interfacial energy states in Au/pentacene/polyimide/indium–zinc-oxide diodes by electroluminescence spectroscopy and electric-field-induced optical second-harmonic generation measurement Open
By using electroluminescence (EL) spectroscopy and electric-field-induced optical second-harmonic generation (EFISHG) measurement, we analyzed interfacial energy states in Au/pentacene/polyimide/indium–zinc-oxide (IZO) diodes, to character…
View article: Optical second-harmonic generation measurement for probing organic device operation
Optical second-harmonic generation measurement for probing organic device operation Open
We give a brief overview of the electric-field induced optical second-harmonic generation (EFISHG) technique that has been used to study the complex behaviors of organic-based devices. By analyzing EFISHG images of organic field-effect tra…
View article: Modeling and visualization of carrier motion in organic films by optical second harmonic generation and Maxwell-displacement current
Modeling and visualization of carrier motion in organic films by optical second harmonic generation and Maxwell-displacement current Open
The probing and modeling of carrier motions in materials as well as in electronic devices is a fundamental research subject in science and electronics. According to the Maxwell electromagnetic field theory, carriers are a source of electri…
View article: Direct probing of contact electrification by using optical second harmonic generation technique
Direct probing of contact electrification by using optical second harmonic generation technique Open
Contact electrification between two different materials is one of the oldest fields of study in solid-state physics. Here, we introduced an innovative system based on optical electric-field-induced second harmonic generation (EFI-SHG) tech…
View article: Catalyst-free plasma enhanced growth of graphene from sustainable sources
Catalyst-free plasma enhanced growth of graphene from sustainable sources Open
Details of a fast and sustainable bottom-up process to grow large area high quality graphene films without the aid of any catalyst are reported in this paper. We used Melaleuca alternifolia, a volatile natural extract from tea tree plant a…