A5054257647- Perovskite Materials and Applications
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Organic Light-Emitting Diodes Research
- Advanced battery technologies research
- Advanced Measurement and Detection Methods
- Luminescence and Fluorescent Materials
- Advanced oxidation water treatment
- Advanced Sensor Technologies Research
- Antibiotics Pharmacokinetics and Efficacy
- Skin Protection and Aging
- Advanced Algorithms and Applications
- Ocular and Laser Science Research
- GaN-based semiconductor devices and materials
- Organic Electronics and Photovoltaics
- Antenna Design and Analysis
- ZnO doping and properties
- Molecular Sensors and Ion Detection
- Electrophoretic Deposition in Materials Science
- Chemical Synthesis and Characterization
- Adsorption and biosorption for pollutant removal
- Membrane Separation Technologies
- Ga2O3 and related materials
- Phosphorus and nutrient management
University of Hong Kong
2023-2025
University of Manchester
2020-2024
Ningbo Institute of Industrial Technology
2024
Chongqing Metrology Quality Inspection and Research Institute
2023
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...
A passivation treatment is proposed that improves perovskite photovoltaic device performance and stability to annealing in dry environments. rationale presented for the observed loss of on heating wet
A rapid and scalable laser-assisted process to manufacture Li-doped mesoporous TiO 2 films for ambient-processed perovskite solar cells.
Abstract Halide perovskite single crystals have demonstrated enormous potential for next‐generation integrated optoelectronic devices. However, there is a lack of facile method to realize the controllable growth large‐scale, high‐quality, and high‐resolution crystal arrays on diverse types substrates, which hinders their application in practical scenarios. Here, one‐step wettability‐guided blade coating approach reported rapid situ crystallization multicolor, sub‐100 nm single‐crystal...
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...
Perovskite solar cells (PSCs) are among the most promising emerging photovoltaic technologies, due to their high efficiency, comparable that of silicon cells. However, concerns about stability these devices remain, despite great progress achieved in recent years. To address concerns, comprehensive investigations under realistic operating conditions necessary. In this Perspective, we will discuss outdoor testing PSCs. We first introduce degradation mechanisms relevant for intrinsic stability,...
The air stability of PSCs is enhanced by employing a TiO<sub>2</sub>/Al<sub>2</sub>O<sub>3</sub> bilayer mesoporous scaffold.
A titanium dioxide (TiO2) compact film is a widely used electron transport layer (ETL) for n-i-p planar perovskite solar cells (PSCs). However, TiO2 sufferers from poor electrical conductivity, leading to high energy loss at the perovskite/ETL/transparent conductive oxide interface. Doping with alkali- and transition-metal elements an effective way improve its conductivity. The conventional method prepare these metal-doped films commonly requires time-consuming furnace treatments 450-600 °C...
Increased efficiency of sky-blue LEDs based on Dion–Jacobson perovskite emitters is achieved through the optimization hole transport layer–perovskite interface.
Herein, the effect of multicomponent composite encapsulation on stability perovskite thin films and solar cells, as well lead leakage upon water immersion, is investigated. The simple low cost since it entirely deposited by solution processed techniques in ambient atmosphere. It consists a spray‐coated layer sandwiched between two spin‐coated layers. contains hygroscopic nanomaterials, oxygen scavengers, adsorbing which enables reduced improved encapsulated during storage ambient, immersion...
Novel core-shell magnetic molecularly imprinted polymers (MMIPs) were synthesized using the sol-gel method for adsorption of cefixime (CFX). Fe3O4@SiO2 is core, and (MIPs) are shell, which can selectively interact with CFX. The preparation conditions, kinetics, isotherms, selective ability, reutilization performance MMIPs investigated. capacity CFX was 111.38 mg/g, about 3.5 times that MNIPs. equilibrium time 180 min. dynamic experiments showed process to conformed pseudo-second-order model....
A combination of KBr modification and laser processing is utilized to prepare SnO 2 films for rigid flexible perovskite solar cells (PSCs). The effectively passivates the defects at interface between as well grain boundaries film. power conversion efficiency (PCE) 20.14% achieved with KBr‐modified PSCs fabricated under a relative humidity around 65–75%, compared pristine PCE 18.66%. Then, picosecond ultraviolet employed process on substrates rapid scanning rate 100 mm s −1 . improves PCEs...
Carbon-based hole-transport-layer-free perovskite solar cells (HTL-free C–PSCs) have gained tremendous attention due to their low cost, ease of fabrication, low-temperature processability, and excellent long-term stability. However, HTL-free C–PSCs suffer from poor interfacial contact at the carbon/perovskite limited hole extraction ability, thereby limiting device's performance. Herein, an in situ one-step synthesis strategy is presented simultaneously generate laser-induced graphene flakes...
In this work, a novel heavy metal chelating agent (DTC-SDS) containing dithiocarbamate (DTC) was synthesized using sodium dodecyl sulfate (SDS), formaldehyde, and carbon disulfide. DTC-SDS has excellent trapping performance under pH 1-7 initial concentrations 100-500 mg/L. With the increase in adsorbent dose, adsorption amount of increases then decreases, optimized dosage is 0.02 g. The exhibits superior capacity (191.01, 111.7, 79.14 mg/g) high removal rates (97.99%, 98.48%, 99.91%) for...
Abstract Based on the measurement principle of psychrometer and experimental data, influence wind speed humidity is analyzed, uncertainty measured by evaluated GUM method. The research results show that under condition high temperature humidity, relative not sensitive to speed. When 90%RH air 85°C, difference calculated using different coefficients 0.03% RH. With decrease dry-bulb gradually increases. 20%RH 20°C, 2.64% main introduced coefficient which a function Measurement decreases with...
As an emerging candidate material for photovoltaic applications, metal halide perovskites are well-known their high power conversion efficiency and fabrication convenience. Mixed-halide perovskites, specifically those with bromide (Br) iodide (I) anions, a popular choice the light-absorbing layer due to wide bandgap, critical consideration as perovskite-based tandem solar cells make major effort towards commercialization. However, photo-induced phase segregation in mixed under illumination...
Perovskite solar cells (PSCs) have gained significant attention as a promising photovoltaic technology due to their excellent power conversion efficiency (PCE) and cost-effective fabrication methods. However, ensuring long-term stability addressing environmental concerns are vital challenges for successful commercialization. In this study, we explore metal oxide-based thin film encapsulation methods enhance the performance durability of PSCs. We considered back surface modification flexible...
Completing the picture of underlying physics perovskite solar cell interfaces that incorporate self-assembled molecular layers (SAMs) will accelerate further progress in p-i-n devices. In this work, we modified Fermi level a nickel oxide–perovskite interface by utilizing SAM with range dipole strengths to establish link between resulting shift built-in potential and device parameters. To achieve this, fabricated series high-efficiency cells no hysteresis characterized them through stabilize...
2D metal halide perovskites have enabled significant stability improvements in perovskite devices, particularly resistance to moisture. However, some are even more susceptible photooxidation compared 3D perovskites. This is true for commonly investigated Ruddlesden-Popper (RP) that exhibit increased susceptibility photoinduced degradation Dion-Jacobson (DJ) Comparisons between different RP and DJ reveal this phenomenon cannot be explained by proposed differences superoxide ion generation,...