A5080954828- Liquid Crystal Research Advancements
- Photonic Crystals and Applications
- Advanced Surface Polishing Techniques
- Photonic and Optical Devices
- Diamond and Carbon-based Materials Research
- Perovskite Materials and Applications
- Metal and Thin Film Mechanics
- Advanced machining processes and optimization
- Plant and animal studies
- Advanced Machining and Optimization Techniques
- Quantum Dots Synthesis And Properties
- Cryptographic Implementations and Security
- Boron and Carbon Nanomaterials Research
- Aluminum Alloys Composites Properties
- Chaos-based Image/Signal Encryption
- Optical measurement and interference techniques
- Photoreceptor and optogenetics research
- 2D Materials and Applications
- Coding theory and cryptography
- Additive Manufacturing Materials and Processes
- Surface Modification and Superhydrophobicity
- Nonlinear Optical Materials Studies
- Laser Material Processing Techniques
- Optical Coatings and Gratings
- MXene and MAX Phase Materials
Sun Yat-sen University
2019-2025
Wuhan Textile University
2025
Fuzhou University
2024
Ministry of Education of the People's Republic of China
2024
Huazhong University of Science and Technology
2009-2023
Guangxi University
2023
Jiangsu University of Technology
2023
Jinggangshan University
2020-2023
Shandong University
2017-2021
Nanjing University of Aeronautics and Astronautics
2006-2021
Heterojunction engineering has played an indispensable role in the exploitation of innovative artificial materials with exceptional properties and consequently triggered a new revolution achieving high-performance optoelectronic devices. Herein, intriguing halide perovskite (PVK) metal dichalcogenide (MD) heterojunction, i.e., lead-free Cs2SnI6 nanocrystal/SnS2 nanosheet hybrid, was fabricated situ for first time. Comprehensive investigations experimental characterizations theoretical...
Perovskite solar cells (PSCs) have emerged as low-cost photovoltaic representatives. Constructing three-dimensional (3D)/two-dimensional (2D) perovskite heterostructures has been shown to effectively enhance the efficiency and stability of PSCs. However, further enhancement device performance is still largely limited by inferior conductivity 2D capping layer its mismatched energy level with 3D layer. Here, we developed an effective surface modification strategy via synergically incorporating...
We have investigated the physical and optical properties of left-handed chiral dopant ZLI-811 mixed in a nematic liquid crystal (LC) host BL006. The solubility BL006 at room temperature is ~24 wt%, but can be enhanced by increasing temperature. Consequently, photonic band gap cholesteric (CLC) with more than 24 wt% blue shifted as increases. Based on this property, we demonstrate two applications thermally tunable band-pass filters dye-doped CLC lasers.
Abstract Halide perovskite single-crystals have recently been widely highlighted to possess high light harvesting capability and superior charge transport behaviour, which further enable their attractive performance in photovoltaics. However, application photoelectrochemical cells has not yet reported. Here, a methylammonium lead bromide MAPbBr 3 single-crystal thin film is reported as photoanode with potential organic synthesis, 2,5-dimethoxy-2,5-dihydrofuran. Depositing an ultrathin Al 2 O...
Due to the large distance or weak electronic conjugation between adjacent Bi-I octahedrons, charge transport in low-dimensional bismuth-based hybrid perovskites is impeded and thus hinders their future developments. In this work, A-site cation engineering by monoamine BZA (benzylamine) diamine 3-AMP (3-(aminomethyl)pyridine) has been demonstrated as an efficient strategy regulate corresponding activation energy of ionic migration carrier capacity. Given higher polarity than BZA, producing a...
In recent years, halide perovskites have shown great application potential in X-ray detection due to their superior optoelectronic properties and high attenuation coefficient. However, large-area perovskite fabrication for performance detectors remains extremely challenging. Herein, ultrasound-assisted crystallization combined with the hot-pressing method is proposed prepare (10 cm × 10 cm) high-quality quasi-monocrystalline thick film of a mixed-cation MA0.42 FA0.58 PbI3 . The rapid...
A scattering-free broadband (approximately 120 nm bandwidth) circular polarizer is demonstrated by stacking three chiral polymer films with different pitch lengths. Using 4 x matrix method, we have theoretically simulated the transmission spectra of each film and stacked films. Simulation results agree well experiment. bandwidth ranging from 400 to 736 can be achieved 8 such together. indicate that if a high birefringence (Deltan approximately 0.35) employed number reduced three. Potential...
Combinatorial multiobjective optimization problems (CMOPs) are very popular due to their widespread applications in the real world. One common method for CMOPs is Pareto local search (PLS), a natural extension of single-objective (LS). However, classical PLS tends reserve all nondominated solutions LS, which causes inefficient as well unbearable computational and space cost. Due aforementioned reasons, most approaches can only handle with no more than two objectives. In this paper, by...
A spatially tunable laser emission of the dye-doped cholesteric liquid crystal (CLC) cell using a one-dimensional temperature gradient is demonstrated. The photoexcitation CLC device frequency-doubled pulsed Nd: yttrium–aluminium–garnet gives rise to in yellow-red spectral range. lasing wavelength widely from 577 670 nm by shifting position with respect pumping beam. lowest excitation energy and maximum efficiency occur at λ∼605nm which corresponds peak fluorescence dye.
Abstract The perovskite solar cells (PSCs) are promising for commercialization and practical application. However, high‐quality films normally fabricated in inert gas‐filled glovebox, followed by thermal annealing, which is energy‐consuming thus not cost‐effective. In this study, a simple manufacturing strategy demonstrated to fabricate the highly‐crystalline ambient air (a relative humidity of over ≈50%) at room temperature via blade‐coating without subsequent thermal–annealing. precursor...
Photoactive black-phase formamidinium lead triiodide (α-FAPbI
Abstract Large‐area perovskite (PVK) X‐ray detectors exhibit significant potential for commercial applications. However, the production of uniform and dense thick films as well achieving efficient carrier transport over tens microns in PVK films, remain major challenges highly sensitive detection. Herein, an innovative vacuum‐assisted blade coating strategy is proposed using inks that strictly controls nucleation growth PVKs to prepare large‐area, high‐quality MAPbI 3 homojunction films....
A low threshold and high efficiency laser based on dye-doped cholesteric liquid crystals (CLCs) is demonstrated using an input excitation with the same handedness of circular polarization as helical structure sample at shorter wavelength band edge reflection band. The responsible mechanism originates from dramatic increase optical density state (DOS) edges. calculated DOS CLC system confirms authors’ experimental results.