A5053608507- Perovskite Materials and Applications
- Advanced Photocatalysis Techniques
- Quantum Dots Synthesis And Properties
- Conducting polymers and applications
- Chalcogenide Semiconductor Thin Films
- Copper-based nanomaterials and applications
- CO2 Reduction Techniques and Catalysts
- Advanced battery technologies research
- Electrocatalysts for Energy Conversion
- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Ionic liquids properties and applications
- ZnO doping and properties
- Ammonia Synthesis and Nitrogen Reduction
- Gas Sensing Nanomaterials and Sensors
- Solid-state spectroscopy and crystallography
- TiO2 Photocatalysis and Solar Cells
- Electronic and Structural Properties of Oxides
- Organic Light-Emitting Diodes Research
- Advanced Thermoelectric Materials and Devices
- Caching and Content Delivery
- Advanced Nanomaterials in Catalysis
- Graphene research and applications
- Iron oxide chemistry and applications
- Nanoplatforms for cancer theranostics
Nankai University
2018-2025
Unité Matériaux et Transformations
2022-2025
École Polytechnique Fédérale de Lausanne
1970-2022
Guangzhou University of Chinese Medicine
2019-2022
Collaborative Innovation Center of Chemical Science and Engineering Tianjin
2019-2022
Beijing Solar Energy Research Institute
2020-2021
Tianjin University of Technology
2021
ORCID
2020
Interface (United States)
2014-2019
Photonics (United States)
2014-2019
Although sunlight-driven water splitting is a promising route to sustainable hydrogen fuel production, widespread implementation hampered by the expense of necessary photovoltaic and photoelectrochemical apparatus. Here, we describe highly efficient low-cost water-splitting cell combining state-of-the-art solution-processed perovskite tandem solar bifunctional Earth-abundant catalyst. The catalyst electrode, NiFe layered double hydroxide, exhibits high activity toward both oxygen evolution...
Metal halide perovskite solar cells (PSCs) currently attract enormous research interest because of their high solar-to-electric power conversion efficiency (PCE) and low fabrication costs, but practical development is hampered by difficulties in achieving performance with large-size devices. We devised a simple vacuum flash–assisted solution processing method to obtain shiny, smooth, crystalline films electronic quality over large areas. This enabled us fabricate an aperture area exceeding 1...
Researchers developed a perovskite solar cell with high power-conversion efficiency (>20%) and intense electroluminescence yield (0.5%).
A mixture of CsPbI<sub>3</sub> and FAPbI<sub>3</sub> is thermodynamically stabilized in the perovskite phase with respect to pure δ phases.
Fe3O4 has long been regarded as a promising anode material for lithium ion battery due to its high theoretical capacity, earth abundance, low cost, and nontoxic properties. However, up now no effective scalable method realized overcome the bottleneck of poor cyclability rate capability. In this article, we report bottom-up strategy assisted by atomic layer deposition graft bicontinuous mesoporous nanostructure onto three-dimensional graphene foams directly use composite anode. This electrode...
Due to its abundance, scalability, and nontoxicity, Cu2O has attracted extensive attention toward solar energy conversion, it is the best performing metal oxide material. Until now, high efficiency devices are all planar in structure, their photocurrent densities still fall well below theoretical value of 14.5 mA cm–2 due incompatible light absorption charge carrier diffusion lengths. Nanowire structures have been considered as a rational promising approach solve this issue, but various...
Highly ordered TiO2@α-Fe2O3 core/shell arrays on carbon textiles (TFAs) have been fabricated by a stepwise, seed-assisted, hydrothermal approach and further investigated as the anode materials for Li-ion batteries (LIBs). This composite TFA exhibits superior high-rate capability outstanding cycling performance. The specific capacity of TFAs is much higher than that pristine (CTs) TiO2 nanorod (TRAs), indicating positive synergistic effect material structural hybridization enhancement...
Metal sulfides are an emerging class of high‐performance electrode materials for solar cells and electrochemical energy storage devices. Here, a facile powerful method based on anion exchange reactions is reported to achieve metal sulfide nanoarrays through topotactical transformation from their oxide hydroxide pre‐forms. Demonstrations made CoS NiS nanowires, nanowalls, core‐branch nanotrees carbon cloth nickel foam substrates. The exhibit superior redox reactivity storage. self‐supported...
The electrochemical nitrate reduction reaction (NITRR) provides a promising solution for restoring the imbalance in global nitrogen cycle while enabling sustainable and decentralized route to source ammonia. Here, we demonstrate novel electrocatalyst NITRR consisting of Rh clusters single-atoms dispersed onto Cu nanowires (NWs), which delivers partial current density 162 mA cm-2 NH3 production Faradaic efficiency (FE) 93 % at -0.2 V vs. RHE. highest ammonia yield rate reached record value...
In this paper, a highly ordered three‐dimensional Co 3 O 4 @MnO 2 hierarchical porous nanoneedle array on nickel foam is fabricated by facile, stepwise hydrothermal approach. The morphologies evolution of and nanostructures upon reaction times growth temperature are investigated in detail. Moreover, the as‐prepared structures as anodes for both supercapacitors Li‐ion batteries. When used supercapacitors, excellent electrochemical performances such high specific capacitances 932.8 F g −1 at...
Developing efficient systems for the conversion of carbon dioxide to valuable chemicals using solar power is critical mitigating climate change and ascertaining world's future supply clean fuels. Here, we introduce a mesoscopic cathode consisting Cu nanowires decorated with Ag islands, by reduction Ag-covered Cu2O prepared via galvanic replacement reaction. This catalyst enables CO2 ethylene other C2+ products faradaic efficiency 76%. Operando Raman spectroscopy reveals intermediate...
A fullerene derivative (α-bis-PCBM) is purified from an as-produced bis-phenyl-C61 -butyric acid methyl ester (bis-[60]PCBM) isomer mixture by preparative peak-recycling, high-performance liquid chromatography, and employed as a templating agent for solution processing of metal halide perovskite films via antisolvent method. The resulting α-bis-PCBM-containing solar cells achieve better stability, efficiency, reproducibility when compared with analogous containing PCBM. α-bis-PCBM fills the...
Organolead iodide perovskite, CH3NH3PbI3, was prepared in the form of nanowire by means a small quantity aprotic solvent two-step spin-coating procedure. One-dimensional perovskite with mean diameter 100 nm showed faster carrier separation presence hole transporting layer and higher lateral conductivity than three-dimensional nanocuboid crystal. Reduction dimensionality resulted hypsochromic shift both absorption fluorescence spectra, indicative more localized exciton states nanowires. The...
Abstract Artificial photosynthesis, mimicking nature in its efforts to store solar energy, has received considerable attention from the research community. Most of these attempts target production H 2 as a fuel and our group recently demonstrated solar-to-hydrogen conversion at 12.3% efficiency. Here, an effort take this approach closer real which is based on CO , we demonstrate efficient reduction carbon monoxide driven solely by simulated sunlight using water electron source. Employing...
Abstract Hollow and hierarchical nanostructures have received wide attention in new‐generation, high‐performance, lithium ion battery (LIB) applications. Both TiO 2 Fe O 3 are under current investigation because of their high structural stability (TiO ) capacity (Fe ), low cost. Here, we demonstrate a simple strategy for the fabrication hollow @Fe application as LIB anodes. Using atomic layer deposition (ALD) sacrificial template‐assisted hydrolysis, resulting nanostructure combines large...
Abstract The high conversion efficiency has made metal halide perovskite solar cells a real breakthrough in thin film photovoltaic technology recent years. Here, we introduce straightforward strategy to reduce the level of electronic defects present at interface between and hole transport layer by treating surface with different types ammonium salts, namely ethylammonium, imidazolium guanidinium iodide. We use triple cation formulation containing primarily formamidinium small amounts cesium...
Controlling the morphology and surface passivation in perovskite solar cells is paramount obtaining optimal optoelectronic properties. This study incorporates N-doped graphene nanosheets layer, which simultaneously induces an improved at perovskite/spiro interface, resulting enhancement all photovoltaic parameters.
Abstract Perovskite solar cells present one of the most prominent photovoltaic technologies, yet their stability, scalability, and engineering at molecular level remain challenging. We demonstrate a concept multifunctional modulation scalable operationally stable perovskite that exhibit exceptional solar-to-electric power conversion efficiencies. The judiciously designed bifunctional modulator SN links mercapto-tetrazolium (S) phenylammonium (N) moieties, which passivate surface defects,...
Sunlight-driven CO2 reduction is a promising way to close the anthropogenic carbon cycle. Integrating light harvester and electrocatalyst functions into single photoelectrode, which converts solar energy directly reduced species, under extensive investigation. The immobilization of rhenium-containing catalysts on surface protected Cu2O-based photocathode allows for design photofunctional unit combining advantages molecular with inorganic photoabsorbers. To achieve large current densities,...