A5039082174- Perovskite Materials and Applications
- Conducting polymers and applications
- Organic Light-Emitting Diodes Research
- Organic Electronics and Photovoltaics
- Quantum Dots Synthesis And Properties
- Luminescence and Fluorescent Materials
- Advanced Sensor and Energy Harvesting Materials
- Thin-Film Transistor Technologies
- Transition Metal Oxide Nanomaterials
- Chemical Looping and Thermochemical Processes
- ZnO doping and properties
- Catalysis and Oxidation Reactions
- Photonic and Optical Devices
- Supercapacitor Materials and Fabrication
- Chalcogenide Semiconductor Thin Films
- Nanomaterials and Printing Technologies
- Green IT and Sustainability
- Solid-state spectroscopy and crystallography
- Analytical Chemistry and Sensors
- Advancements in Battery Materials
- Integrated Circuits and Semiconductor Failure Analysis
- Catalytic Processes in Materials Science
- Advanced Photocatalysis Techniques
- GaN-based semiconductor devices and materials
- Advanced Memory and Neural Computing
University of Hong Kong
2023-2025
Lahore College for Women University
2025
International Islamic University, Islamabad
2015-2024
Tsinghua–Berkeley Shenzhen Institute
2021-2023
Tsinghua University
2021-2023
Peking University
2017-2023
Peking University Shenzhen Hospital
2018-2022
Queen Mary University of London
2021
State Council of the People's Republic of China
2020
We proposed a new full-color display framework QD-OLEDs, where blue OLEDs are used as pump light, and red green QDs printed on color filters conversion layers.
Hydrogels have entered the spotlight for applications in soft electronics. It is essential and challenging to obtain hydrogels that can function properly under varying environmental circumstances, is, 30-90% relative humidity (RH) -20 40 °C due their intrinsic nature lose absorb water upon variations temperature. In this work, a green solvent, solketal, introduced into poly 3-dimethyl-2-(2-methylprop-2-enoyloxy)ethyl azaniumyl propane-1-sulfonate (poly(DMAPS)) zwitterionic hydrogels....
Abstract Combining blue micro‐light‐emitting diodes (LEDs) with color conversion layers (CCLs) is a promising approach to develop efficient full‐color displays. However, no such practical display reported so far potentially because of two major challenges, i.e., rarely available materials and severe crosstalk effect among adjacent pixels due the thick sapphire substrates LED chips. Here, micro‐LED prototype by combining rationally designed micro‐LEDs backlight CsPbBr 3 perovskite CdSe QDs as...
Recently, Apple Inc. launched the highly anticipated cellphone, iPhone X, which adopts an active-matrix organic light-emitting display (AMOLED) for first time.
In this review, we focus on the recent advances in organic solar cells enabled by A–DA′D–A type acceptors and summarize correlation between molecular structure, packings, optoelectronic properties, photovoltaic performance.
Solution processable quasi-2D (Q-2D) perovskite materials are emerging as a promising candidate for blue light source in full-color display applications due to their good color saturation property, high brightness, and spectral tunability. Herein, an efficient energy cascade channel is developed by introducing sodium bromide (NaBr) phenyl-butylammonium (PBA)-containing mixed-halide Q-2D perovskites light-emitting diode (PeLED). The incorporation of alkali metal contributes the nucleation...
Traditional alternating-current-driven electroluminescent (AC-EL) devices adopting a sandwich structure are commonly used in solid-state lighting and displays, while the emerging coplanar-electrode light-emitting variants manifest excellent application prospects intelligent, multifunctional, full-color sensing purposes. In this work, an asymmetrically enhanced AC-EL device with universal straightforward architecture is designed based on impedance adjustment strategy. This newly devised...
ZnxCu1−xO (where x= 0, 0.01, 0.03, 0.05, 0.07 and 0.1 mol%) hierarchical nanostructures have been prepared via soft chemical route. X-ray diffraction (XRD) results of the synthesized samples reveal monoclinic structure CuO without any impurity related phases. The micro-structural parameters such as crystallite size microstrain strongly influenced by Zn doping. Scanning electron microscope (SEM) analyses depict formation having average particle in range 26-43 nm. surface area has reduced...
Abstract Ion migration induced interfacial degradation is a detrimental factor for the stability of perovskite solar cells (PSCs) and hence requires special attention to address this issue development efficient PSCs with improved stability. Here, an “S‐shaped, hook‐like” organic small molecule, naphthalene diimide derivative (NDI‐BN), employed as cathode interface layer (CIL) tailor [6,6]‐phenylC61‐butyric acid methylester (PCBM)/Ag in inverted PSCs. By realizing enhanced electron extraction...
Two-dimensional tin halide perovskites are of significant interest for light emitting applications. Here, we investigate the effect organic cation A on stability different Dion–Jacobson tin-based perovskites. The ASnBr4 materials using diammonium with shorter alkyl chains found to exhibit improved stability, exhibiting dramatic difference between most stable HDASnBr4, where HDA denotes 1,6-hexanediammonium, and two 8- 10-carbon chain ammonium cations. HDASnBr4 powders were thermally at 100...
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...
Development of multifunctional materials and devices has garnered enormous attention in the field organic optoelectronics; nevertheless, achieving high mobility together with strong luminescence a single semiconductor remains major bottleneck. Here, new molecule, 2,7-diphenylbenzo[4,5]thieno[3,2-b]benzofuran (BTBF-DPh), that integrates charge transporting [1]benzothieno[3,2-b][1]benzothiophene strongly emissive furan group, is synthesized applied three types optoelectronic devices, including...
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,...
A liquid crystal molecule with versatile properties, like the indicators of a clock, shows various applications.
In this report, phototransistors based on rubrene single crystals have been fabricated using octyltrichlorosilane (OTS) treated SiO2 as a substrate and memory effect has observed studied. Memory writing realized by the combined stimulation of applied gate voltage light illumination was to be strongly dependent voltage. When voltage, Vg = 100 V, only 500 ms time found sufficient achieve window 25 V. Long retention over 10 000 s well stable writing-reading-erasing-circle were also in crystal...
Perovskite light-emitting diodes (PeLEDs) exhibit high external quantum efficiencies (EQEs), emerging as a next-generation lighting and display technology. Nevertheless, they suffer from severe efficiency roll-off at luminance, particularly in the case of blue green emissions, which is one major bottlenecks their industrial applications. Here, we attack this problem using rare-earth metal, Yb, cathode interface layer (CIL) for PeLEDs. By adopting new device configuration ITO/TFB/FA-based...