A5102895812- Perovskite Materials and Applications
- Conducting polymers and applications
- Nonlinear Optical Materials Research
- Catalytic Processes in Materials Science
- Chalcogenide Semiconductor Thin Films
- Gas Sensing Nanomaterials and Sensors
- Luminescence and Fluorescent Materials
- Sulfur-Based Synthesis Techniques
- Quantum Dots Synthesis And Properties
- Organic Light-Emitting Diodes Research
- Porphyrin and Phthalocyanine Chemistry
- Chemical Synthesis and Reactions
- Solid-state spectroscopy and crystallography
- Advanced Photocatalysis Techniques
- Molecular spectroscopy and chirality
- Nonlinear Optical Materials Studies
- High-Temperature Coating Behaviors
- Molecular Sensors and Ion Detection
- Advanced materials and composites
- Metal and Thin Film Mechanics
- TiO2 Photocatalysis and Solar Cells
- Organoselenium and organotellurium chemistry
- Metal-Organic Frameworks: Synthesis and Applications
- Analytical Chemistry and Sensors
- ZnO doping and properties
University of Hong Kong
2019-2025
Hong Kong University of Science and Technology
2025
Zhejiang Hisun Pharmaceutical (China)
2018-2024
Guiyang Medical University
2023
Southern University of Science and Technology
2017-2022
East China University of Technology
2021-2022
Chinese University of Hong Kong
2021
Technical Institute of Physics and Chemistry
2016-2018
Zhengzhou University
2017-2018
Chinese Academy of Sciences
2016-2018
In this research update, we discuss the visible-light photocatalysis. Due to potential of utilizing freely available solar energy for environmental remediation and fuel generation, topic has been increasing interest. Huge amount work done in developing a large variety photocatalyst materials, advances have made understanding process. Nevertheless, substantial challenges remain. Some those could possibly be solved by better but many cases, biggest problem is whether photocatalysis scaled up...
Molecular doping of inorganic semiconductors is a rising topic in the field organic/inorganic hybrid electronics. However, it difficult to find dopant molecules which simultaneously exhibit strong reducibility and stability ambient atmosphere, are needed for n-type oxide semiconductors. Herein, successful SnO2 demonstrated by simple, air-robust, cost-effective triphenylphosphine molecule. Strikingly, discovered that electrons transferred from R3P+ O- σ-bond peripheral tin atoms other than...
Various phosphonic acid based self-assembled monolayers (SAMs) have been commonly used for interface modifications in inverted perovskite solar cells. This typically results significant enhancement of the hole extraction and consequent increase power conversion efficiency. However, surface coverage packing density SAM molecules can vary, depending on chosen material underlying oxide layer. In addition, different diverse effects interfacial energy level alignment film growth, resulting...
We investigated the use of titania coated ZnO tetrapods for photocatalytic degradation two common types microplastics, namely polyethylene (PE) microparticles and polyester (PES) microfibers. found that plastics morphology affects rate degradation, electron scavengers is needed to maintain reactivity photocatalysts over a prolonged period time. Complete mass loss PE PES achieved under UV illumination 480 h 624 h, respectively. In addition pristine environmental microplastics sample...
An <italic>o</italic>-phthalimide-based AIE system was developed and used for detecting UV light, Hg(<sc>ii</sc>) pH, as a photo-printing material.
Flexible perovskite solar cells (fPSCs) prepared on flexible plastic substrates exhibit poor stability under illumination in ambient, due to inferior gas barrier properties of substrates. Herein, we investigated effect different modifications the back surface substrate improve ambient. T 80 simulated at maximum power point ambient (ISOS‐L‐1) can be increased from h over 350 with deposition a single layer (by spin‐coating or by atomic (ALD)). While ALD layers resulted best value and...
Imaging of biological matter by using fluorescent nanoparticles (NPs) is becoming a widespread method for in vitro imaging. However, currently there no NP that satisfies all necessary criteria short-term vivo imaging: biocompatibility, biodegradability, photostability, suitable wavelengths absorbance and fluorescence differ from tissue auto-fluorescence, near infrared (NIR) emission. In this paper, we report on the photoluminescent properties magnesium oxide (MgO) NPs meet these criteria....
Hybrid organic–inorganic perovskites have attracted great attention as the next generation materials for photovoltaic and light-emitting devices. However, their environment instability issue remains largest challenge practical applications. Recently emerging two-dimensional (2D) with Ruddlesden–Popper structures are found to greatly improve stability aging problems. Furthermore, strong confinement of excitons in these natural quantum-well results distinct narrow light emission visible...
A facile method was developed for the selective thioetherification of uracils using sulfonyl hydrazide as reagent.
2D lead halide perovskites are used to improve device operational stability due increased environmental and reduced ion migration compared 3D perovskites. However, the relationship between perovskite under illumination spacer cation is still not well understood. Thus, we examine photoinduced segregation (PHS) in different mixed-halide show that PHS suppressed materials which have photostable bromide phase. As cations provide barrier perovskites, would be facilitated by loss of through their...
Abstract The performance of perovskite solar cells has significantly improved over the years in part due to defect passivation bulk and at interfaces. While many additive molecules have been reported literature, they are commonly applicable only one particular composition. Here we investigate a multifunctional additive, 4‐amino‐5‐bromo nicotinic acid (ABrNA), for use both methylammonium (MA)‐free perovskites with different Br content (bandgaps ranging from 1.53 1.73 eV) as well MA‐containing...
High performance perovskite solar cells have been obtained using a variety of compositions.
Microplastic (MP) pollution is ubiquitous in the environment and there a significant need for development of photocatalysts environmental remediation microplastic pollution. Herein, effect structure morphology Nb 2 O 5 nanostructures on their photocatalytic activity MP degradation investigated. Nanostructures with high fraction pseudohexagonal TT‐Nb phase are shown to effectively degrade pure polyethylene, polypropylene, polyester, as well samples collected from environment. Efficient...
A series of chromophores based on julolidine donors modified by four different rigid steric hindrance groups with the same thiophene bridges and strong tricyanovinyldihydrofuran acceptors were synthesised.
Reversible, multicolor, non-composite photochromic systems based on fluoran salicylaldehyde hydrazone Zn(<sc>ii</sc>) complexes both in solution and a solid matrix.
Increased efficiency of sky-blue LEDs based on Dion–Jacobson perovskite emitters is achieved through the optimization hole transport layer–perovskite interface.
Novel bichromophores <bold>YL3</bold> based on julolidine donor chromophores were synthesized <italic>via</italic> a Cu(<sc>i</sc>) catalyzed click-reaction and systematically characterized in this paper.
Perovskite solar cells (PSCs) are known to be sensitive the exposure ambient humidity, which typically results in degradation and deterioration of performance, although positive effects moisture have also been reported, due recrystallization perovskite. Common approach improve stability is use 3D/2D perovskite active layer, where 2D capping layer prepared by spin coating bulky organic cation halide. Herein, it shown that optimizing phenylethylammonium iodide (PEAI) atmosphere substantial...
Enhancement of light emission upon ambient exposure in tin-based Dion–Jacobson perovskites occurs due to the transformation their non-emissive 2D phase into emissive hydrated 1D phase.
We investigated the influence of two passivating molecules containing a P═O group on performance quasi-2D Dion-Jacobson halide perovskite light-emitting diodes, namely, triphenylphosphine oxide (TPPO) and diphenyl-4-triphenylsilylphenyl phosphine (TSPO1). found that both lead to increased efficiency compared control devices, while they had opposite effects device lifetime, with decrease observed for TPPO an increase TSPO1. The resulted in differences energy-level alignment, electron...