- TiO2 Photocatalysis and Solar Cells
- Advanced Photocatalysis Techniques
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Electrochemical sensors and biosensors
- Transition Metal Oxide Nanomaterials
- Supercapacitor Materials and Fabrication
- Electrochemical Analysis and Applications
- Advanced Sensor and Energy Harvesting Materials
- Analytical Chemistry and Sensors
- Organic Light-Emitting Diodes Research
- Advanced Nanomaterials in Catalysis
- Advanced battery technologies research
- Graphene research and applications
- Chalcogenide Semiconductor Thin Films
- Advancements in Battery Materials
- Semiconductor materials and devices
- Metallurgy and Material Forming
- Molecular Junctions and Nanostructures
- Polyoxometalates: Synthesis and Applications
- Superconducting Materials and Applications
- Energy Harvesting in Wireless Networks
- Organic Electronics and Photovoltaics
- Carbon Nanotubes in Composites
- Dynamics and Control of Mechanical Systems
Gopalganj Science and Technology University
2025
Korea University
2019-2024
Hongik University
2013-2024
Sejong University
2023-2024
Konkuk University
2009-2013
Konkuk University Medical Center
2012
The University of Adelaide
2011
Among electrochemical energy storage (EES) technologies, rechargeable batteries (RBs) and supercapacitors (SCs) are the two most desired candidates for powering a range of electrical electronic devices. The RB operates on Faradaic processes, whereas underlying mechanisms SCs vary, as non-Faradaic in double-layer capacitors (EDLCs), at surface electrodes pseudo-capacitors (PCs), combination both hybrid (HSCs). EDLCs offer high power density but low density. HSCs take advantage process without...
Electrochemical impedance spectroscopy (EIS) is one of the most important tools to elucidate charge transfer and transport processes in various electrochemical systems including dye-sensitized solar cells (DSSCs). Even though there are many books reports on EIS, it often very difficult explain EIS spectra DSSCs. Understanding through calculating spreadsheet can be a powerful approach as user, without having any programming knowledge, go each step calculation get instant feedback by...
Abstract A selective and very simple electrochemical method, based on anodization of a glassy carbon electrode (GCE), was developed for the simultaneous detection hydroquinone (HQ) catechol (CT). It found that activated GCE showed an excellent catalytic behavior enhanced reversibility towards oxidation both HQ CT. The redox responses from mixture CT were easily resolved at GCE. limits calculated to be 0.16 0.11 μM, respectively. successfully examined real sample analysis with tap water it...
Stretchable organic light-emitting diodes are ubiquitous in the rapidly developing wearable display technology. However, low efficiency and poor mechanical stability inhibit their commercial applications owing to restrictions generated by strain. Here, we demonstrate exceptional performance of a transparent (molybdenum-trioxide/gold/molybdenum-trioxide) electrode for buckled, twistable, geometrically stretchable under 2-dimensional random area strain with invariant color coordinates. The...
This perspective thoroughly explores the energy loss factors in DSSCs and estimates feasible efficiency of under outdoor indoor conditions, compares it with SQ limit an ideal solar cell.
A novel electrochemical sensor was fabricated by simply screen printing reduced graphene oxide (rGO) paste on F-doped tin (FTO) (rGO-SP-FTO) followed sintering at 450°C in Argon and employed for detecting dopamine (DA) uric acid (UA) simultaneously. The rGO film characterized using Raman spectroscopy, field emission scanning electron microscope (FE-SEM), Fourier transform infrared spectroscopy (FTIR). surface sensing features of rGO-SP-FTO were studied with impedance (EIS) cyclic voltammetry...
The demand for high-capacity energy storage along with high power output and faster charging has made supercapacitors a key area of research. charge capacity capacitors is largely dependent on the electrode materials utilized. To that end, graphene oxide (GO) reduced GO (RGO) have been extensively employed preparing supercapacitors. However, to date, no study reported utilizing GO/RGO bilayer material supercapacitor application. Herein, we report synthesis electrodes fluorine-doped tin (FTO)...
The cuprate superconductors are among the most widely studied quantum materials, yet there remain fundamental open questions regarding their electronic properties and role of structural degrees freedom. Recent neutron x-ray scattering measurements uncovered exponential scaling with temperature strength orthorhombic fluctuations in tetragonal phase $La_{2-x}Sr_xCuO_4$ $Tl_2Ba_2CuO_{6+y}$, unusual behavior that closely resembles prior results for emergence superconducting fluctuations, points...
Strontium phosphorus chloride (Sr 3 PCl ) presents a promising option for photovoltaic (PV) applications due to its distinctive optical, electrical, and structural characteristics.
Three electrode structures with different spatial arrangements of carbon nanotubes (CNTs) in the mesoporous TiO(2) layer were employed dye-sensitized solar cells to study effect surface states at interface formed by incorporation CNTs. It was found that decay open circuit voltage (V(oc)) significantly minimized avoiding direct contact conducting substrate introducing a thin buffer while maintaining superior electron collection efficiency from nanotubes.
An amperometric hydrogen peroxide (H2O2) biosensor was developed based on the immobilization of horseradish peroxidase (HRP) onto a gold-nanoparticle (GNP)-adsorbed conducting poly(thionine) (PTH) film. The modification process characterized by scanning electron microscope (SEM), electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). effects experimental parameters such as concentration mediator (hydroquinone, HQ), pH solution, working potential were investigated for...
Here, we find that doping sp(2) selective nitrogen, N sp(2), into carbon nanotube (CNT) channels induces a positive shift in the Fermi level of TiO(2) photoelectrodes. It is found this results large diffusion coefficient solar driven electrons for increasing photocurrent as well low recombination rate improving open circuit voltage with 0.74 V, which could not be overcome by using pristine CNT 0.66 V.