A5103180455- Perovskite Materials and Applications
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Organic Light-Emitting Diodes Research
- Advanced Sensor and Control Systems
- Industrial Technology and Control Systems
- Solid-state spectroscopy and crystallography
- Organic Electronics and Photovoltaics
- Hydraulic and Pneumatic Systems
- Electromagnetic Launch and Propulsion Technology
- Industrial Automation and Control Systems
- Embedded Systems and FPGA Design
- Advanced Photocatalysis Techniques
Yangzhou University
2024-2025
Wuhan National Laboratory for Optoelectronics
2020-2023
Huazhong University of Science and Technology
2012-2023
Wuhan University of Technology
2017-2021
Materials Science & Engineering
2018
A novel potassium-containing quadruple-cation absorber realizes over 20% efficiency and hysteresis elimination for planar perovskite solar cells.
Abstract Perovskite solar cells (PSCs) have rapidly developed and achieved power conversion efficiencies of over 20% with diverse technical routes. Particularly, planar‐structured PSCs can be fabricated low‐temperature (≤150 °C) solution‐based processes, which is energy efficient compatible flexible substrates. Here, the efficiency stability planar are enhanced by improving interface contact between SnO 2 electron‐transport layer (ETL) perovskite layer. A biological polymer (heparin...
High-quality perovskite light harvesters and robust organic hole extraction layers are essential for achieving high-performing solar cells (PSCs). We introduce a phosphonic acid-functionalized fullerene derivative in mixed-cation perovskites as grain boundary modulator to consolidate the crystal structure, which enhances tolerance of film against illumination, heat, moisture. also developed redox-active radical polymer, poly(oxoammonium salt), that can effectively p-dope hole-transporting...
Abstract The self‐assembled hole transporting molecules (SAHTMs) bearing anchoring groups have been established as the layers (HTLs) for highly efficient p–i–n perovskite solar cells (PSCs), yet their stability and engineering at molecular level remain challenging. A topological design of anisotropic aligned SAHTM‐based HTLs operationally stable PSCs that exhibit exceptional solar‐to‐electric power conversion efficiencies (PCEs) is demonstrated. judiciously designed multifunctional comprise...
Large-area, highly uniform Cs<sub>x</sub>FA<sub>1−x</sub>PbI<sub>3−y</sub>Br<sub>y</sub> mixed cation perovskite films were prepared by a facile vapor–solid reaction method.
Abstract High‐performance perovskite solar cells (PSCs) typically require interfacial passivation, yet this is challenging for the buried interface, owing to dissolution of passivation agents during deposition perovskites. Here, limitation overcome with in situ buried‐interface passivation—achieved via directly adding a cyanoacrylic‐acid‐based molecular additive, namely BT‐T, into precursor solution. Classical and ab initio dynamics simulations reveal that BT‐T spontaneously may...
A multifunctional interface modulator GO/(CsPbBr 3 QD) composite decreases resistive losses of perovskite solar modules by enhanced charge transport and decreased carrier recombination, as well inhibiting ion/molecule diffusion.
For fabricating high-performance perovskite solar cells (PSCs) and modules, it is crucial to obtain high-quality (PVSK) films efficient interfacial charge transport. Here, we introduce a synergistic strategy combining [6,6]-4-fluorophenyl-C61-butyric acid (FPAC60) self-assembled monolayer (SAM) bis-adduct 2,5-(dimethyl ester) C60 fulleropyrrolidine (bis-DMEC60) additive an device. The FPAC60 SAM can not only promote transport passivate defects at the SnO2/PVSK buried interface but also serve...
Abstract Long‐term stability has become the major obstacle for successful large‐scale application of perovskites devices. Owing to ionic nature metal‐halide perovskites, interfacial ion diffusion can induce irreversible degradation under operational conditions, which presents a great challenge realize stable perovskite solar modules. Here, diphenylphosphine oxide compound, ethane‐1,2‐diylbis(diphenylphosphine oxide) (DPPO) is introduced coordinate with lead iodide and form cross‐linked 1D Pb...
Abstract Weak bonding between the perovskite and charge transport layers can lead to interfacial defects, hindering transfer limiting efficiency stability of solar cells (PSCs). To address this issue, two halogenated spiro[fluorene‐9,9′‐xanthene]‐based molecules (SFX‐DM‐F SFX‐DM‐Cl) are designed as an layer hole materials (HTMs). Both first‐principles simulations experimental results used demonstrate that these improve contact perovskite's Pb(II) HTMs, increasing transfer. The similar...
The presence of positively charged cationic defects and residual PbI2 on the perovskite surface has hindered improvement device performance long-term stability. Herein, 4,10-diaza-15-crown 5-ether (DA15C5), a diaza-crown ether featuring multiple N atom O donors, is developed to modify surface. Owing strong chemical interactions between DA15C5 both Pb2+ A-site cations, films are effectively passivated, thereby suppressing nonradiative recombination promoting charge transport at cathode...
Abstract The photoactive α‐phase of formamidinium lead iodide perovskite (α‐FAPbI 3 ) is regarded as one the ideal materials for high‐efficiency solar cells (PSCs) due to its superior optoelectronic properties. However, during deposition α‐FAPbI films, presence impurity phases, such PbI 2 and δ‐FAPbI , can cause formation inherent defects, which leads suboptimal charge transport extraction properties, well inadequate long‐term stability in film's morphology structure. To address these...
The long-term stability remains an issue impeding the commercialization of perovskite solar cells (PSCs). Generally, polycrystalline thin films have many defects on grain boundaries, which affect optoelectronic performance and devices under moisture, heat, illumination, presence electric field condition. O-donor Lewis base is often employed to regulate PSCs such as carbonyl carboxyl compounds. Herein, we developed a concept radical molecular modulation using group for high-performance...
Wide‐bandgap perovskite solar cells (WBG‐PSCs) are pivotal in achieving high‐performance tandem cells. However, their power conversion efficiency (PCE) is limited by the losses from interfacial charge transfer barrier and nonradiative recombination. In this investigation, 1,4‐bis(aminomethyl)benzene (PDMA) employed as a defect passivator for fabricating methylammonium (MA)‐free (PSCs), thus effectively mitigating recombination of carriers. Meanwhile, PDMA molecules chemically rinse film to...
Safety valves play very important role in protecting the safety of hydraulic support coal mine. However, its development is greatly limited by corresponding test bench for dynamic experiment. In this paper, an experimental system testing performance valve with rated pressure up to 50MPa and flow rate 2000L/min, introduced. Based on AMEsim software, modeling simulation designed carried out. Some parameters are also analyzed their influences tested valve’s obtained simulation. It found that...
The use of electromagnetic relief valve with high pressure and large flow rate in hydraulic system is usually easy to bring vibration noise issues, especially while water or based fluid (HWBF) used as the medium. In this paper, a HWBF cushion was presented its simulation model built on AMESim software. Through simulation, it found that can significantly reduce peak gradient during unloading process compared without valve. This research provides new solution for solving issues
Abstract ; Nickel oxide (NiO x ) is one of the most promising inorganic hole transport layers for perovskite solar cells (PSCs), due to its low cost, high mobility, and superior stability. However, mismatched energy level undesirable chemical reaction at NiO /perovskite interface limit performance -based PSCs. Herein, a p- type semiconductor TPA-BA explored modify form an intermediate layer (HTL) between efficient stable This molecule comprises triphenylamine carboxyl function group, which...
A data acquisition and control system for a safety valve test bench with high pressure large flow rate, was developed based on the host-slave architecture, which takes an Industrial Personal Computer (IPC) as host computer Programmable Automatic Controller (PAC) salve computer. The hardware architecture software design of this were introduced in detail. This verified by experiment, results indicate that it can fulfill requirement speed long distance. study provide reference many automation fields.