- Advanced Sensor and Energy Harvesting Materials
- Conducting polymers and applications
- Tactile and Sensory Interactions
- Supercapacitor Materials and Fabrication
- Anodic Oxide Films and Nanostructures
- Innovative Energy Harvesting Technologies
- Optical Coatings and Gratings
- Perovskite Materials and Applications
- Nanowire Synthesis and Applications
- Photonic and Optical Devices
- TiO2 Photocatalysis and Solar Cells
- Advanced Photocatalysis Techniques
- Dielectric materials and actuators
- Organic Electronics and Photovoltaics
- Quantum Dots Synthesis And Properties
- Thin-Film Transistor Technologies
- Semiconductor materials and devices
- Magnetic Properties and Synthesis of Ferrites
- Advanced Memory and Neural Computing
- Advanced battery technologies research
- Silicon Nanostructures and Photoluminescence
- Advanced Materials and Mechanics
- Pigment Synthesis and Properties
- Advanced Fiber Optic Sensors
- Multiferroics and related materials
Kyung Hee University
2015-2023
University of Surrey
2020-2023
Advanced Institute of Convergence Technology
2018
Yong In University
2015-2018
Government of the Republic of Korea
2016
Convergence
2015
Koneru Lakshmaiah Education Foundation
2015
Electronic waste produced by plastic, toxic, and semiconducting components of existing electronic devices is dramatically increasing environmental pollution. To overcome these issues, the use eco-friendly materials for designing such attaining much attention. This current work presents a recycled material-based triboelectric nanogenerator (TENG) made plastic carbon-coated paper wipes (C@PWs), in which PWs are also collected from bin. The resultant C@PW-based TENG then used powering low-power...
Abstract Ambient energy harvesting has great potential to contribute sustainable development and address growing environmental challenges. Converting waste from energy-intensive processes systems (e.g. combustion engines furnaces) is crucial reducing their impact achieving net-zero emissions. Compact harvesters will also be key powering the exponentially smart devices ecosystem that part of Internet Things, thus enabling futuristic applications can improve our quality life homes, cities,...
Flexible and interlaced-designed triboelectric nanogenerators (TENGs) are acquiring enormous research interest due to their facile fabrication techniques easy employment as a power source for wearable/portable electronic devices. Herein, we proposed polypyrrole (PPy)-based flexible wearable TENGs with excellent electrical output performance robustness. The interlaced microfibrous mesh cotton fabric was used support frame deposit PPy by an in situ chemical polymerization process. Such...
Abstract Triboelectric nanogenerators (TENGs) are gaining much research interest recently owing to their facile and cost‐effective device structure. However, the effect of relative humidity (in moisture atmosphere) on output performance still needs be resolved. Herein, a pouch‐type TENG is proposed significantly reduce its electrical stable also attained in humid environment. In this regard, dielectric materials‐based (DD‐TENG) first developed using nanoarchitecture polydimethylsiloxane...
Triboelectric nanogenerator (TENG) technology is an emerging field to harvest various kinds of mechanical energies available in our living environment. Nowadays, for industrial and large-scale area applications, developing the TENG with low device processing cost high electrical output a major issue be resolved. Herein, we designed by employing microgrooved architectured (MGA)-poly(tetrafluoroethylene) (PTFE; Teflon) aluminum as triboelectric materials opposite tendencies. Moreover, MGA-PTFE...
We successfully synthesized flower-like zinc oxide (ZnO) nanoarchitectures by a chemical precipitation method which is facile, cost-effective, low-temperature, and quick-synthesis process. Furthermore, these were used to design an MWCNT (multiwalled carbon nanotube)/ZnO/PDMS (polydimethylsiloxane) composite film-based hybrid nanogenerator (HNG). Here, the ZnO nanoflowers play important role in enhancing piezoelectric triboelectric potentials of HNG, termed as piezoelectric-assisted...
We report CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>planar perovskite solar cells with multifunctional inverted micro-pyramidal structured polydimethylsiloxane antireflection layers for enhancing the device efficiency.
A wearable and humidity-resistant cellulose-based flexible triboelectric nanogenerator (FTENG) device with high performance is proposed here. In this regard, cellulose extracted from cotton was combined a poly(vinyl alcohol) solution spray-coated onto conductive–flexible substrate to develop highly porous film (HPF) which employed in the fabrication of FTENG. The dependence electrical on surface area comprehensively studied by varying HPF. Furthermore, HPF-based FTENG (HPF-FTENG)...
First Page
Highly transparent and flexible triboelectric nanogenerators (TENGs) were fabricated using the subwavelength-architectured (SWA) polydimethylsiloxane (PDMS) with a nanoporous anodic aluminum oxide (AAO) template as replica mold. The SWA PDMS could be utilized multifunctional film for layer, an antireflection coating, self-cleaning surface. nanopore arrays of AAO formed by simple, fast, cost-effective electrochemical oxidation process aluminum, which is relatively impressive fabrication TENG...
A composite film consisting of Al-doped BaTiO<sub>3</sub> particles with high ferroelectricity is used to enhance the output performance nanogenerators.
Biomimetic microarchitectured polymer layers, such as inverted hemispherical architectured (IHSA)-polydimethylsiloxane (PDMS) and (HSA)-PDMS were prepared by a simple cost-effective soft-imprinting lithography method via hexagonal close-packed polystyrene microsphere array/silicon mold. The IHSA-PDMS/glass possessed superior antireflection (AR) characteristics with the highest/lowest average transmittance/reflectance ( Tavg/ Ravg) values of approximately 89.2%/6.4% compared to...
We report the creation of hybrid energy cells based on hierarchical nano/micro-architectured polydimethylsiloxane (HNMA-PDMS) films with multifunctionality to simultaneously harvest mechanical, solar, and wind energies. These consist nano/micro dual-scale architectures (i.e., nanonipples inverted micropyramidal arrays) PDMS surface. The HNMA-PDMS is replicable by facile cost-effective soft imprint lithography using a nanoporous anodic alumina oxide film formed micropyramidal-structured...