A5101434814- Conducting polymers and applications
- Perovskite Materials and Applications
- Robotics and Sensor-Based Localization
- Organic Electronics and Photovoltaics
- Planetary Science and Exploration
- Quantum Dots Synthesis And Properties
- Advanced Memory and Neural Computing
- Advanced Image and Video Retrieval Techniques
- Organic Light-Emitting Diodes Research
- Advanced Sensor and Energy Harvesting Materials
- Energy Harvesting in Wireless Networks
- Innovative Energy Harvesting Technologies
- Chalcogenide Semiconductor Thin Films
- Photovoltaic System Optimization Techniques
- Catalytic Processes in Materials Science
- Synthesis and properties of polymers
- Infrared Target Detection Methodologies
- Luminescence and Fluorescent Materials
- Non-Destructive Testing Techniques
- Industrial Vision Systems and Defect Detection
- Engineering Applied Research
- Space Exploration and Technology
- Analytical Chemistry and Sensors
- Low-power high-performance VLSI design
- Electrical and Bioimpedance Tomography
Technical University of Darmstadt
2024-2025
Korea University
2020-2024
Inje University
2024
Argonne National Laboratory
2021-2024
Chung-Ang University
2021-2023
Konkuk University
2017-2022
University of Michigan
2021
Samsung (South Korea)
2021
Kyung Hee University
2017-2018
Konkuk University Medical Center
2018
This paper presents a full duplex radio design using signal inversion and adaptive cancellation. Signal uses simple based on balanced/unbalanced (Balun) transformer. new design, unlike prior work, supports wideband high power systems. In theory, this has no limitation bandwidth or power. practice, we find that the technique alone can cancel at least 45dB across 40MHz bandwidth. Further, combining cancellation with in digital domain reduce self-interference by up to 73dB for 10MHz OFDM...
Wafer-scale n-MoS<sub>2</sub>/p-Si photocathodes with high hydrogen evolution reaction activities are demonstrated.
Background Biomarkers play a key role in risk assessment, assessing treatment response, and detecting recurrence the investigation of multiple biomarkers may also prove useful accurate prediction prognosis cancers. Immunohistochemistry (IHC) has been major diagnostic tool to identify therapeutic subclassify breast cancer patients. However, there is no suitable IHC platform for multiplex assay toward personalized therapy. Here, we report microfluidics-based multiplexed (MMIHC) that...
TiO<sub>2</sub> NRs which have a multi-function tasks such as protection from corrosion, antireflection and catalytic activities were grown in 4-inch silicon for silicon-based solar water splitting.
The high electron mobility, wide band gap, and chemical stability of n-type SnO2 have facilitated its use as an ideal transport layer (ETL) for perovskite solar cells (PSCs). However, the tendency to aggregate during film formation leads poor morphology low reproducibility. Despite important advances in application PSCs, a thorough understanding material control over aggregation is lacking. Herein, aggregation-regulated films are directly deposited on fluorine-doped tin oxide glass surface...
<div class="section abstract"><div class="htmlview paragraph">To properly compare and contrast the environmental performance of one vehicle technology against another, it is necessary to consider their production, operation, end-of-life fates. Since 1995, Argonne’s GREET® life cycle analysis model (Greenhouse gases, Regulated Emissions, Energy use in Technologies) has been annually updated refine latest developments fuels materials as well operational composition characteristics....
Lead bromide-based perovskites are promising materials as the top cells of tandem solar and for application in various fields requiring high voltages owing to their wide band gaps excellent environmental resistances. However, several factors, such formation bulk surface defects, impede performances corresponding devices, thereby limiting efficiencies these devices single-junction devices. To reduce number defect sites, urea is added formamidinium lead bromide (FAPbBr
Abstract Planar perovskite solar cells (PSCs) incorporating n‐type SnO 2 have attracted significant interest because of their excellent photovoltaic performance. However, the film fabrication is limited by self‐aggregation and inhomogeneous growth intermediate phase, which produces poor morphology properties. In this study, a self‐controlled layer fabricated directly on fluorine‐doped tin oxide (FTO) surface through simple rapid chemical bath deposition. The PSCs based hydrolyzed exhibit an...
A carbon nanotube coated paper sensor has been developed for the detection of damages in structural components. Electrical resistance tomography is used to measure changes electrical potential at various locations induced by applying a small current sample. The spatial and magnitudes multiple are predicted accurately with sensitivity 73 ppm sensing area. limit estimated be 29 area, which least 30 times better than previous results (0.1-0.65%) literature.
Electron transport layer (ETL) is pivotal to charge carrier for PSCs reach the Shockley–Queisser limit. This study provides a fundamental understanding of heterojunction electron layers (ETLs) at atomic level stable and efficient perovskite solar cells (PSCs). The bilayer structure an ETL composed SnO 2 on TiO was examined, revealing critical factor limiting its potential obtain performance. Alteration oxygen vacancies in underlayer via annealing process found induce manipulated band offsets...
We investigate the sigmoidal concentration dependence of electrical conductivity poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) processed with linear glycol-based additives such as ethylene glycol (EG), diethylene (DEG), triethylene (TEG), hexaethylene (HEG), and monomethyl ether (EGME). observe that a sharp transition occurs at additive ~0.6 wt.%. EG, DEG, TEG are effective in enhancement, showing saturation conductivities 271.8, 325.4, 326.2 S/cm, respectively....
The molecular weight (MW) and its distribution (MW-D) of conjugated polymers are important parameters to obtain desirable properties for organic field-effect transistors. Although the effects high-MW chains on charge-carrier mobility well-recognized, role low-MW has been overlooked. Herein, we investigate electrical naphthalenediimide-based n-type (PNDIs) having different electron-donating units (namely, thiophene, bithiophene, selenophene, biselenophene). MW-D PNDIs is systematically...
The cesium lead iodide (CsPbI3) perovskite solar cell possesses a wide band gap ranging from 1.65 to 1.75 eV, which is suitable for integration into tandem structure along with low-band-gap silicon cell. Moreover, CsPbI3 has received considerable attention as potential solution the prevalent issues of low thermal stability organic–inorganic cells and phase segregation encountered in conventional mixed halide wide-band-gap cells. Through implementation volatile additives, demonstrated...
Tuning the conductance of a memristive device is process that requires energy and involves power dissipation. In this letter, role memory state programming strategy plays in connection investigated. To end, model equations representing electron transport metal ion/oxygen vacancy displacement caused by application an external signal must be solved consistently. However, if instead considering applied voltage as input, trajectory assumed, can decoupled allowing analytic description problem....
For the production of ethanol from freshwater cyanobacteria, a new pretreatment method using supercritical fluid was introduced. In this study, it found that could penetrate inside cell wall and help to liberate starch cyanobacterial cells which resulted in increase efficiency production. Microcystis aeruginosa, increased amount produced cyanobacteria 1.53 g/L 2.66 g/L. Anabaena variabilis, 1.25 2.28 With use pretreatment, process obtain higher yields improved upto 80%. The optimum...