A5021542251- Perovskite Materials and Applications
- Diamond and Carbon-based Materials Research
- Conducting polymers and applications
- Metal and Thin Film Mechanics
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Supercapacitor Materials and Fabrication
- Organic Electronics and Photovoltaics
- X-ray Spectroscopy and Fluorescence Analysis
- Advanced X-ray Imaging Techniques
- Advanced Photocatalysis Techniques
- Advanced battery technologies research
- Boron and Carbon Nanomaterials Research
- Electrocatalysts for Energy Conversion
- Electronic and Structural Properties of Oxides
- Advancements in Photolithography Techniques
- Ion-surface interactions and analysis
- Bone Tissue Engineering Materials
- ZnO doping and properties
- Graphene and Nanomaterials Applications
- Carbon and Quantum Dots Applications
- Microstructure and mechanical properties
- Advanced Surface Polishing Techniques
- Acoustic Wave Resonator Technologies
- 2D Materials and Applications
Synchrotron Light Research Institute
2016-2025
European Synchrotron Radiation Facility
2015-2016
Suranaree University of Technology
2009
With high efficacy for electron-photon conversion under low light, perovskite materials show great potential indoor solar cell applications to power small electronics internet of things (IoTs). To match the spectrum an LED light source, triple cation composition was varied adjust band gap values via Cs and Br tuning. However, increased gaps lead morphology, phase instability, defect issues. 10% 30% strike right balance, leading low-cost carbon-based devices with highest efficiency (PCE)...
Resonant Inelastic X-ray Scattering (RIXS) in the soft x-ray range is an element-specific energy-loss spectroscopy used to probe electronic and magnetic excitations strongly correlated solids. In recent years, RIXS has been progressing very quickly terms of energy resolution understanding experimental results, but interpretation spectra could further improve, sometimes decisively, from a full knowledge polarization incident scattered photons. Here we present first implementation, high...
We demonstrate a functional method to achieve surface passivation and construct two-dimensional (2D) layer on three-dimensional (3D) perovskite, eliminating the need for subsequent annealing steps. A key process is integration of single methylammonium lead iodide (MAPbI3) crystal with butylammonium (BAI) in tetrahydrofuran. Density theory calculations reveal that synergy between BA+ cations Pb–I octahedral structures enables formation distinct 2D layered framework. MA+ exhibit adsorption...
Although poly(3-hexylthiophene-2,5-diyl) (P3HT) with its stability-boosting hydrophobic surface is a promising low-cost alternative dopant-free hole transport material for n-i-p perovskite solar cells (PSCs), the P3HT-based PSCs suffer from energy mismatch between hydrophilic and P3HT, which results in interlayer gap, poor electronic contact, charge extraction. In this study, ferrocene (Fc) acts as an at perovskite/P3HT interface, inducing replacement of edge-on stacking alkyl side chains...
Printable planar carbon electrodes present a cost‐effective and highly promising alternative to thermally evaporated metals, serving as the rear contact for stable perovskite solar cells (PSCs). However, power conversion efficiencies (PCEs) of carbon‐based PSCs (C‐PSCs) are notably lower compared those state‐of‐the‐art PSCs. The inferior between electrode underlying layer contributes performance loss. Here, we developed scalable doctor‐bladed by simultaneously incorporating 4 wt% black...
Bioconjugates in electrochemical biosensors can significantly enhance the detection process and sensitivity. In this study, we synthesized a monoclonal antibody-conjugated nanocomposite of graphene oxide Nafion (GO-Nf-mAb) for application an biosensor as novel all-in-one bioreceptor. The incorporation (Nf) improved stability, dispersity, antibody immobilization on GO surface, thereby increasing sensitivity biosensor. impact stability conjugation was thoroughly investigated compared to that...
Hydrogenated amorphous carbon (a-C:H) films have optical and electrical properties that vary widely depending on deposition conditions; however, the conduction mechanism, which is dependent film structure, has not yet been fully revealed. To understand relationship between structure three types of a-C:H were prepared their structures evaluated. The sp2/(sp2 + sp3) ratios measured by a near-edge X-ray absorption fine technique. From conductivity–temperature relationship, variable-range...
Rapid advancements in perovskite materials have led to potential applications various optoelectronic devices, such as solar cells, light-emitting diodes, and photodetectors. Due good photoelectric properties, enables low-cost comparable performance terms of responsivity, detectivity, speed those the silicon counterpart. In this work, we utilized triple cation perovskite, well known for its high performance, stability, wide absorption range, which is crucial broadband photodetector...
Recent advancements in flexible perovskite solar cells (f‐PSCs) have significantly improved power conversion efficiency (PCE) and mechanical durability, particularly when using a polyethylene naphthalate (PEN) substrate. In this study, we investigate the effects of two‐dimensional (2D) organic surface treatments—including phenylethylammonium iodide (PEAI), 5‐ammonium valeric acid (5‐AVAI), butylammonium (BAI)—on photovoltaic performance properties f‐PSCs. Our findings reveal that radiative...
Electroreduction of O2 is a promising method for decentralized H2O2 production. Due to their high selectivity, low cost, and highly tunable properties, O- N-doped carbon catalysts are appealing this process. However, the relative effects O N dopants on catalytic performances not well understood. In work, we present active selective 2e– reduction based doped nanohorns (CNH) synthesized by gas-injected arc-in-water (GI-AIW) method. The incorporated during synthesis post-treatment investigated....
With growing population, vertical spaces from skyscrapers are vast. Semi-transparent solar cells enable an effective pathway for energy harvesting. composition tunability, perovskite materials can be designed with different transparencies and colors. In this work, ultra-high bandgap layered triple cation system was developed the first time to meet demand of clear optoelectronic applications; low dimensional thin films were fabricated using formula...
Tin-Oxide Perovskites In article number 2200964, Non Thongprong, Thidarat Supasai, Nopporn Rujisamphan, and co-workers presented the pseudohalide salt of sodium tetrafluoroborate, whose anions have a higher electronegativity than other halide salts, with potential to passivate surface tin oxide while enhancing optoelectronic properties perovskite film. The current study presents facile effective method for moderate thermal stability performance solar cell devices.
Porous silica (SiO2) nanoparticles have been widely used as drug-delivery materials; however, it is difficult to control drug release at desirable rates when using only SiO2. Thus, a facile synthesis of SiO2-carbon core–shell (SiO2@C) with tunable sizes and shapes for efficient controlled was developed prolong the antibacterial activity thymol (T). The physicochemical properties, surface bonding between carbon shell were determined XPS, NEXAFS, DFT studies. An in vitro study also applied,...
A beamline to utilize radiation from the first undulator at Siam Photon Laboratory was designed and constructed. The employs a varied line-spacing plane grating monochromator with three interchangeable gratings, which provides energy between 40-160 220-1040 eV. There are two optical branches downstream of allowing different measurement techniques, i.e. photoemission spectroscopy electron microscopy, be utilized in time-sharing mode. In this report, detailed descriptions as well performance...