A5009303924- TiO2 Photocatalysis and Solar Cells
- Transition Metal Oxide Nanomaterials
- Gas Sensing Nanomaterials and Sensors
- Advanced Photocatalysis Techniques
- Perovskite Materials and Applications
- Conducting polymers and applications
- Analytical Chemistry and Sensors
- Advanced Condensed Matter Physics
- Luminescence Properties of Advanced Materials
- Quantum Dots Synthesis And Properties
- Magnetic and transport properties of perovskites and related materials
- Advanced Chemical Sensor Technologies
- Physics of Superconductivity and Magnetism
- ZnO doping and properties
- Advanced Nanomaterials in Catalysis
- Zeolite Catalysis and Synthesis
- Pigment Synthesis and Properties
- Advancements in Battery Materials
- Polyoxometalates: Synthesis and Applications
- Organic Electronics and Photovoltaics
- Advanced Battery Materials and Technologies
- X-ray Diffraction in Crystallography
- Microwave Dielectric Ceramics Synthesis
- Chalcogenide Semiconductor Thin Films
- Ammonia Synthesis and Nitrogen Reduction
Korea Institute of Energy Research
2013-2024
Korea University of Science and Technology
2020-2022
University of Science and Technology
2018-2020
Daejeon University
2014-2020
Government of the Republic of Korea
2015-2020
Institute of Physics
2001-2004
Laboratoire de Chimie Organique
2004
Centre National de la Recherche Scientifique
2004
Korea University
2001
Abstract Recent advances in perovskite solar cells (PSCs) performance have been closely related to improved interfacial engineering and charge selective contacts. Here, a novel cost‐competitive phenothiazine based, self‐assembled monolayer (SAM) as hole‐selective contact for p‐i‐n PSCs is introduced. The molecularly tailored SAM enables an energetically well‐aligned interface with the absorber, minimized nonradiative recombination loss, thus dramatically improving extraction/transport device...
Abstract Inverted type perovskite solar cells (PSCs) have recently emerged as a major focus in academic and industrial photovoltaic research. Their multiple advantages over conventional PSCs include easy processing, hysteresis‐free behavior, high stability, compatibility for tandem applications. However, the maximum power conversion efficiency (PCE) of inverted still lags behind those because suitable charge‐selective materials are limited. In this study, excellent hole‐selective introduced....
Dual-band electrochromic smart windows can dynamically and independently control near infrared (NIR) visible (Vis) light, are considered a promising technology for improving building energy efficiency. However, most existing dual band materials consist of complex nanocomposites, it is difficult to balance the delicate composition each constituent. Recently, solve these problems, research has been conducted on single component dual-band materials, in particular, oxygen deficient tungsten...
In this study, amorphous Ti-doped WO<sub>3</sub> films with interpenetrated porous networks were successfully fabricated <italic>via</italic> a facile sol–gel method by using hydrolysis-tolerant titanium coupling agent (TCA) as Ti-dopant.
A bidentate Lewis base, pyrazine, acting as an efficient passivation agent to improve the charge-carrier lifetime and efficiency of perovskite solar cells.
<TEX>$TiO_2$</TEX> doped with <TEX>$Er^{3+\;and\;Yb^{3+}$</TEX> was used for fabricating a scattering layer and nano-crystalline electrode to be in dye-sensitized solar cells. The material prepared using new sol-gel combustion hybrid method acetylene black as fuel. <TEX>$Er^{3+}$</TEX>-<TEX>$Yb^{3+}$</TEX> co-doped titanium oxide powder synthesized at 700oC had embossed structure morphology size between 27 54 nm that agglomerated produce micron particles, observed by the scanning electron...
DSSC using 1,8-naphthalimide derivatives maintained 18% higher relative photo-conversion efficiency after 48 days outdoor condition than commercial UV cut-off filter.
In this work, we conduct a detailed study to understand the photoelectrochromic properties of Al-Pt co-doped tungsten oxide (WO3). Similarly, support findings with material characterization, providing additional understanding performance exhibited by prepared samples. Additionally, discuss effects Al and Pt doping on in detail, focus X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission (TEM) combined EDS, photoelectron spectroscopy (XPS), optical transmittance. XRD peaks...
Effects of surface chemical modification with sodium silicate on the gas-sensingproperties F-doped SnO2 gas sensor designed and fabricated employing micro-electromechanical system (MEMS) technology were investigated. Gas sensing properties thesensor checked against combustible gases like H2, CO, CH4 C3H8 at a heatervoltage 0.7 V. The H2 sensitivity modified micro sensormarkedly increased reached S = 175 which was found to be about 40 times more thanthat unmodified (S ~ 4.2). increase in is...
<TEX>$TiO_2$</TEX> nanopowders were synthesized by new sol-gel combustion hybrid method using acetylene black as a fuel. The dried gels exhibited autocatalytic behaviour. with an anatase structure and narrow size distribution obtained at 400-600 <TEX>${^{\circ}C}$</TEX>. Their crystal structures examined powder Xray diffraction (XRD) their morphology investigated scanning electron microscopy (SEM). of the was found to be in range 15-20 nm. powders 500 <TEX>${^{\circ}C}$</TEX> 600 applied dye...