Wooseok Yang
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View article: Modulation of Electronic Structure in Kraft Lignin‐Derived Mo Single‐Atom Catalysts for Optimized Electrochemical Oxygen Reduction
Modulation of Electronic Structure in Kraft Lignin‐Derived Mo Single‐Atom Catalysts for Optimized Electrochemical Oxygen Reduction Open
The sluggish kinetics of the oxygen reduction reaction (ORR) remain a major bottleneck for energy conversion systems such as fuel cells and metal–air batteries. Here, the synthesis of molybdenum single‐atom catalysts (Mo SACs) derived from…
View article: Machine Learning‐Assisted Prediction of State of Health in Lithium Metal Batteries with Electrochemical Impedance Spectroscopy
Machine Learning‐Assisted Prediction of State of Health in Lithium Metal Batteries with Electrochemical Impedance Spectroscopy Open
Electrochemical impedance spectroscopy (EIS) offers a nondestructive means of diagnosis for the battery's state of health (SoH). However, traditional equivalent circuit‐based approaches—relying on extensive modeling and fitting of complex …
View article: Rapid flame induced dual-metal doping on WO<sub>3</sub> electrode for boosting photo-electrochemical water oxidation
Rapid flame induced dual-metal doping on WO<sub>3</sub> electrode for boosting photo-electrochemical water oxidation Open
A bidirectional co-doping of transition metal Fe and post-transition metal Sn on WO3 photoanode via a facile one step flame-doping process demonstrates the challenging amelioration of both thermodynamic charge migration and surface catalyt…
View article: 10% Efficient Solar‐to‐Hydrogen Conversion via Ternary‐Phase Organic Light Absorbers With Ni Heazlewoodite Electrocatalysts
10% Efficient Solar‐to‐Hydrogen Conversion via Ternary‐Phase Organic Light Absorbers With Ni Heazlewoodite Electrocatalysts Open
The realization of practical solar hydrogen production relies on the development of efficient devices with nontoxic and low‐cost materials. Since the predominant contributors for the performance and cost are the catalyst and the light abso…
View article: Moderate-temperature fabrication of BaZrS<sub>3</sub> thin films <i>via</i> dithiocarbamate-based solution processing and oxygen-sink boron sulfurization
Moderate-temperature fabrication of BaZrS<sub>3</sub> thin films <i>via</i> dithiocarbamate-based solution processing and oxygen-sink boron sulfurization Open
A molecular ink-based approach enables the fabrication of BaZrS 3 thin films at moderate temperatures. This method incorporates boron sulfurization, which removes oxygen from the material while ensuring the formation of phase-pure BaZrS 3 .
View article: Solution Process–Based Facile Flame–Boosted Low‐Valence Transition Metal Doping on Pristine Oxide for Highly Enhanced Photoelectrochemical Solar Water Oxidation Reaction
Solution Process–Based Facile Flame–Boosted Low‐Valence Transition Metal Doping on Pristine Oxide for Highly Enhanced Photoelectrochemical Solar Water Oxidation Reaction Open
As for the high sustainable solar hydrogen production via water splitting, transition metal doping on an oxide photoanode in photoelectrochemical (PEC) cells has been recognized as an effective approach. However, conventional thermal‐diffu…
View article: High Na‐ion conductivity and mechanical integrity of anion‐exchanged polymeric hydrogel electrolytes for flexible sodium ion hybrid energy storage
High Na‐ion conductivity and mechanical integrity of anion‐exchanged polymeric hydrogel electrolytes for flexible sodium ion hybrid energy storage Open
The polymeric gel electrolytes are attractive owing to their higher ionic conductivities than those of dry polymer electrolytes and lowered water activity for enlarged potential window. However, the ionic conductivity and mechanical streng…
View article: Recent progress in chalcogenide perovskites: toward low-temperature solution processing
Recent progress in chalcogenide perovskites: toward low-temperature solution processing Open
Chalcogenide perovskites, ABX3 crystal structure with X=S, Se or Te, are emerging light absorber as an alternative to toxic and unstable halide perovskites. Despite their promising properties, the absence of low-temperature solution proces…
View article: Solution-Processed Cu<sub>2</sub>S Nanostructures for Solar Hydrogen Production
Solution-Processed Cu<sub>2</sub>S Nanostructures for Solar Hydrogen Production Open
Cu2S is a promising solar energy conversion material due to its suitable optical properties, high elemental earth abundance, and nontoxicity. In addition to the challenge of multiple stable secondary phases, the short minority carrier diff…
View article: Bi<sub>2</sub>S<sub>3</sub>‐Cu<sub>3</sub>BiS<sub>3</sub> Mixed Phase Interlayer for High‐Performance Cu<sub>3</sub>BiS<sub>3</sub>‐Photocathode for 2.33% Unassisted Solar Water Splitting Efficiency
Bi<sub>2</sub>S<sub>3</sub>‐Cu<sub>3</sub>BiS<sub>3</sub> Mixed Phase Interlayer for High‐Performance Cu<sub>3</sub>BiS<sub>3</sub>‐Photocathode for 2.33% Unassisted Solar Water Splitting Efficiency Open
To realize practical solar hydrogen production, a low‐cost photocathode with high photocurrent density and onset potential should be developed. Herein, an efficient and stable overall photoelectrochemical tandem cell is developed with a Cu…
View article: Solution phase treatments of Sb<sub>2</sub>Se<sub>3</sub> heterojunction photocathodes for improved water splitting performance
Solution phase treatments of Sb<sub>2</sub>Se<sub>3</sub> heterojunction photocathodes for improved water splitting performance Open
The PEC performance of antimony selenide (Sb 2 Se 3 ) is increased by removing oxide impurities from the surface using (NH 4 ) 2 S etching solution and passivating dangling bonds with a CuCl 2 solution treatment.
View article: Two-dimensional carbon-based heterostructures as bifunctional electrocatalysts for water splitting and metal–air batteries
Two-dimensional carbon-based heterostructures as bifunctional electrocatalysts for water splitting and metal–air batteries Open
The continuous depletion of fossil fuels and the effects of climate change have encouraged prompt action to attain carbon neutrality. Technologies that transform and store renewable energy are crucial for creating a sustainable society, wh…
View article: Interfacial Dipole Layer Enables High-Performance Heterojunctions for Photoelectrochemical Water Splitting
Interfacial Dipole Layer Enables High-Performance Heterojunctions for Photoelectrochemical Water Splitting Open
TiO2 has been widely used as an n-type overlayer, simultaneously serving as a protective layer for photocathodes. However, the photovoltage generated from a TiO2 junction with p-type absorbers, such as p-Si, Sb2Se3, SnS, and Cu2O, is insuf…
View article: Crystal orientation-dependent etching and trapping in thermally-oxidised Cu<sub>2</sub>O photocathodes for water splitting
Crystal orientation-dependent etching and trapping in thermally-oxidised Cu<sub>2</sub>O photocathodes for water splitting Open
Crystal orientation-dependent etching, charge-carrier trapping behaviour, and performance of single-crystal photocathodes are enabled by ammonia solution etching of thermally-oxidised Cu 2 O.
View article: Thiol‐Amine‐Based Solution Processing of Cu<sub>2</sub>S Thin Films for Photoelectrochemical Water Splitting
Thiol‐Amine‐Based Solution Processing of Cu<sub>2</sub>S Thin Films for Photoelectrochemical Water Splitting Open
Cu 2 S is a promising solar energy conversion material owing to its good optical properties, elemental earth abundance, and low cost. However, simple and cheap methods to prepare phase‐pure and photo‐active Cu 2 S thin films are lacking. T…
View article: The Role of Surface States on Reduced TiO<sub>2</sub>@BiVO<sub>4</sub> Photoanodes: Enhanced Water Oxidation Performance through Improved Charge Transfer
The Role of Surface States on Reduced TiO<sub>2</sub>@BiVO<sub>4</sub> Photoanodes: Enhanced Water Oxidation Performance through Improved Charge Transfer Open
The efficient transfer of photogenerated carriers and improved stability against corrosion are essential to maximize the performance of photoanodes. Herein, a reduced catalytic layer formed on a TiO2 protected BiVO4 (R-TiO2@BiVO4) photoano…
View article: Emerging Binary Chalcogenide Light Absorbers: Material Specific Promises and Challenges
Emerging Binary Chalcogenide Light Absorbers: Material Specific Promises and Challenges Open
In the quest for higher efficiency and lower cost solar energy conversion devices, new light absorber materials are being intensively researched. With their attractive optical and electrical properties, metal chalcogenide materials have em…
View article: Operando Analysis of Semiconductor Junctions in Multi‐Layered Photocathodes for Solar Water Splitting by Impedance Spectroscopy
Operando Analysis of Semiconductor Junctions in Multi‐Layered Photocathodes for Solar Water Splitting by Impedance Spectroscopy Open
Although electrochemical impedance spectroscopy (EIS) is a powerful technique for investigating optoelectronic devices, realistic equivalent circuit (EC) models suitable for multi‐layered water splitting electrodes have rarely been reporte…
View article: Doppler Ultrasound Evaluation of Patients with Popliteal Vascular Entrapment Syndrome
Doppler Ultrasound Evaluation of Patients with Popliteal Vascular Entrapment Syndrome Open
Background: To retrospectively evaluate Doppler ultrasound findings for patients with Popliteal Vascular Entrapment Syndrome (PVES).
View article: Operando Analysis of Semiconductor Junctions in Multi-Layered Photocathodes for Solar Water Splitting by Impedance Spectroscopy
Operando Analysis of Semiconductor Junctions in Multi-Layered Photocathodes for Solar Water Splitting by Impedance Spectroscopy Open
Although electrochemical impedance spectroscopy (EIS) is a powerful technique for investigating optoelectronic devices, realistic equivalent circuit (EC) models suitable for multi-layered water splitting electrodes have rarely been reporte…
View article: Operando Analysis of Semiconductor Junctions in Multi-Layered Photocathodes for Solar Water Splitting by Impedance Spectroscopy
Operando Analysis of Semiconductor Junctions in Multi-Layered Photocathodes for Solar Water Splitting by Impedance Spectroscopy Open
Although electrochemical impedance spectroscopy (EIS) is a powerful technique for investigating optoelectronic devices, realistic equivalent circuit (EC) models suitable for multi-layered water splitting electrodes have rarely been reporte…
View article: Water Splitting: Fullerene as a Photoelectron Transfer Promoter Enabling Stable TiO<sub>2</sub>‐Protected Sb<sub>2</sub>Se<sub>3</sub> Photocathodes for Photo‐Electrochemical Water Splitting (Adv. Energy Mater. 16/2019)
Water Splitting: Fullerene as a Photoelectron Transfer Promoter Enabling Stable TiO<sub>2</sub>‐Protected Sb<sub>2</sub>Se<sub>3</sub> Photocathodes for Photo‐Electrochemical Water Splitting (Adv. Energy Mater. 16/2019) Open
In article number 1900179 Jooho Moon and co-workers demonstrate that fullerene introduced at the Pt/TiO2 interface of a TiO2-protected Sb2Se3 photocathode, acts as a photoelectron transfer promoter, and dramatically enhances the long-term …
View article: Photocathodes: Boosting Visible Light Harvesting in p‐Type Ternary Oxides for Solar‐to‐Hydrogen Conversion Using Inverse Opal Structure (Adv. Funct. Mater. 17/2019)
Photocathodes: Boosting Visible Light Harvesting in p‐Type Ternary Oxides for Solar‐to‐Hydrogen Conversion Using Inverse Opal Structure (Adv. Funct. Mater. 17/2019) Open
In article number 1900194, Jooho Moon and co-workers report a novel method for boosting visible-light harvesting in the CuFeO2 photocathode. The introduction of an inverse opal structure allows for exceptional near-bandgap photon harvestin…
View article: Water Splitting: Adjusting the Anisotropy of 1D Sb<sub>2</sub>Se<sub>3</sub> Nanostructures for Highly Efficient Photoelectrochemical Water Splitting (Adv. Energy Mater. 14/2018)
Water Splitting: Adjusting the Anisotropy of 1D Sb<sub>2</sub>Se<sub>3</sub> Nanostructures for Highly Efficient Photoelectrochemical Water Splitting (Adv. Energy Mater. 14/2018) Open
In article 1702888, Jooho Moon and co-workers develop a novel strategy for fabricating one-dimensional Sb2Se3 nanostructures with varied aspect ratios via a simple spin coating of Sb-Se molecular solutions. The control of the Sb2Se3 nanost…