A5101507731- Hydrogels: synthesis, properties, applications
- Perovskite Materials and Applications
- Conducting polymers and applications
- Advanced Sensor and Energy Harvesting Materials
- Soil Carbon and Nitrogen Dynamics
- Chalcogenide Semiconductor Thin Films
- Transition Metal Oxide Nanomaterials
- Bee Products Chemical Analysis
- TiO2 Photocatalysis and Solar Cells
- Surfactants and Colloidal Systems
- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Liquid Crystal Research Advancements
- Dielectric materials and actuators
- Quantum Dots Synthesis And Properties
- Advanced Photocatalysis Techniques
- Soil and Water Nutrient Dynamics
- Silicone and Siloxane Chemistry
- Microfluidic and Capillary Electrophoresis Applications
- Agriculture, Soil, Plant Science
- Material Dynamics and Properties
- Groundwater and Isotope Geochemistry
- Matrix Theory and Algorithms
- Electrostatics and Colloid Interactions
- Solid-state spectroscopy and crystallography
Wuhan University
2023-2025
Hubei University
2017-2024
Wuhan Institute of Technology
2024
Northeast Normal University
2019-2020
Beijing Normal University
2016-2019
Materials Science & Engineering
2017
Faculty (United Kingdom)
2017
Southwest Petroleum University
2015
Chengdu University
2015
Manganese oxide (MnOx) is a considerable candidate for supercapacitor electrode materials owing to its large theoretical capacitance and low price, but performance generally limited by unsatisfactory cycle poor conductivity. Herein, Mn2O3@MnO2 composite nanofibers have been prepared via electrospinning hydrothermal methods. Adjusting the KMnO4 precursor concentration during process, core–shell with variable compositional ratios of MnO2 Mn2O3 obtained. The hierarchically structure synergistic...
Abstract Dimethyl sulfoxide (DMSO) is commonly used as a solvent in the fabrication of perovskite solar cells. However, its strong coordination with iodoplumbate makes it difficult to remove during film formation, resulting defects and voids at perovskite‐substrate interface, which compromise efficiency long‐term stability. Here ethyl acrylate (EA), an unsaturated monomer that aids effective removal DMSO from introduce. EA forms complex DMSO, facilitates de‐intercalation, enhances...
Abstract The efficiency of perovskite photovoltaics remains distant from their theoretical limits, primarily due to high photovoltage losses. Here a strategy is reported minimize voltage losses by reconstructing the surface into bilayer heterojunction (BLH) structure. Unlike conventional low‐dimensional capping layers, typically constrained few nanometers prevent low fill factors, this methodology facilitates more comprehensive reaction with defects, allowing substantial layer (≈50...
Abstract Electronic band structure engineering of metal‐halide perovskites (MHP) lies at the core fundamental materials research and photovoltaic applications. However, reconfiguring structures in MHP for optimized electronic properties remains challenging. This article reports a generic strategy constructing near‐edge states to improve carrier properties, leading enhanced device performances. The are designed around valence edge using theoretical prediction constructed through tailored...
The thermally sensitive charged poly(N-isopropylacrylamide-co-methacrylic acid) (P(NIPAM-co-MAA)) spherical microgel was prepared and their temperature-dependent volume phase transition behavior systematically studied by analyzing the dielectric spectroscopy theoretically over a frequency range from 40 Hz to 110 MHz. It found that relaxation of P(NIPAM-co-MAA) drastically changed between 30 35 °C, significantly different neutral PNIPAM microgels recently published in Soft Matter. mechanism...
Nickel oxide (NiOx), as an inorganic p-type semiconductor, has been widely adopted hole-transporting layers in perovskite solar cells. Despite its superior material stability, the poor charge extraction and multi-vacancies greatly restrict photovoltages efficiencies. Here, we propose a facile method to tune surface oxidation states of NiOx films by lithium salt treatment for photovoltage enhancement. X-ray photoelectron spectroscopy measurement indicates that only reduces Ni3+ sites at top...
Abstract The unfavorable morphology and high crystallization temperature ( T c ) of inorganic perovskites pose a significant challenge to their widespread application in photovoltaics. In this study, an effective approach is proposed enhance the cesium lead triiodide (CsPbI 3 while lowering its . By introducing dimethylammonium acetate into perovskite precursor solution, rapid nucleation stage facilitated, significantly enhances crystal growth intermediate phase at low annealing...
The overall objective of this research was the preparation optical nanocomposite photoanodes through a simple method.
The dielectric behavior of a thermo-sensitive poly-(N-isopropylacrylamide) (PNIPAM) microgel suspension with dense concentration was investigated over the frequency range 40 Hz to 110 MHz in wide temperature window 10–60 °C. By successfully removing electrode polarization effect from original data, two remarkable and temperature-dependent relaxation processes were observed. Both two-phase transition processes, i.e., colloidal crystal-to-liquid transition, which has not yet been detected by...
Paddy field is a major global land use form. However, frequent fluctuations in soil water content make paddy fields important N2O emission sources. The contribution of uptake to the reduction net from varies with content. Nevertheless, little known about impact physicochemical factors, microbial regulatory mechanisms, and on soil. We designed conducted microcosm experiment controlled for gravimetric applied exogenous three soils differing texture parent material. During incubation period, we...
A polyhedral oligomeric silsesquioxane (POSS) nano-cage can endow gel polymer electrolyte (GPE) with similar properties as be accomplished other inorganic nanoparticles; the organic substituents at cage corners of POSS are more compatible GPEs.
The dielectric behavior of thermo-sensitive poly-(N-isopropylacrylamide) (PNIPAM) microgel with three different concentrations was investigated for the frequencies ranging from 40 Hz to 110 MHz as a function temperature 10 60 °C. Two remarkable and temperature-dependent relaxation processes were observed. slow originates segmental motion over whole range. fast is due fluctuation counterions below lower critical solution (LCST) interfacial polarization above LCST. It concluded parameters that...
The collapse of poly(N-isopropylacrylamide)/poly(acrylic acid) semi-interpenetrating polymer network (PNIPAM/PAA SIPN) and poly(N-isopropylacrylamide-co-acrylic (P(NIPAM-co-AA)) microgel suspensions is studied by dielectric spectroscopy in a frequency range from 40 Hz to 110 MHz as function temperature. Dielectric measurements show that the structure affects relaxation behavior microgels: two relaxations (micro-Brownian motion interfacial polarization at low counterion high frequency) are...
ABSTRACT Both water and methanol are good solvents for poly( N ‐isopropylacrylamide) (PNIPAM), while PNIPAM does not dissolve in their mixed solvents, this phenomenon is called cononsolvency. Cononsolvency closely related to many phenomena life but so far, its mechanism still controversial. In work, the dielectric behavior of aqueous solution was studied frequency 40Hz–40GHz. From lower higher frequency, four relaxations were found. They are, respectively, from global chain motion, local...
Dielectric relaxation spectroscopy was applied to study how urea affects the phase transition of a thermosensitive polymer, poly(N-isopropylacrylamide) (PNIPAM), which has been widely used as protein model. It found that there is pronounced near 10 GHz for ternary system PNIPAM in aqueous solution. The temperature dependence dielectric parameters indicates can reduce lower critical solution (LCST) PNIPAM, i.e., stabilize globule state and collapse chains. Based on our results, interaction...
Paddy soils developed from various parent materials are widely distributed in the subtropical region China and have a non-negligible but unclear potential to consume nitrous oxide (N2O) due long-term flooding. This study selected three of most common paddy China, developing quaternary red soil (R), lake sediment sand (S), alluvial (C), their total N2O consumption nitrogen (N2) production using N2-free microcosm experiments. These were treated with addition (N2O treatment) or helium (He) (CK...
In this paper, we give the spectrum of a matrix by using quotient matrix, then apply result to various matrices associated graph and digraph, including adjacency (signless) Laplacian distance obtain some known new results. Moreover, propose problems for further research.
Dye sensitized solar cell(DSSC) possessed both low cost and high energy conversion efficiency has attracted considerabale research interests, enabling a promising next generation cell. DSSC based on TiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> photoanode is low-cost, efficient photovoltaic device for conversion. Conventional commercial consist essentially of anatase crystalline titanium dioxide which played key role in dye...