A5018423731- Perovskite Materials and Applications
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Chemical Synthesis and Reactions
- Organic Electronics and Photovoltaics
- 2D Materials and Applications
- Organic Light-Emitting Diodes Research
- Covalent Organic Framework Applications
- Solid-state spectroscopy and crystallography
- Thin-Film Transistor Technologies
- Dielectric materials and actuators
- Thermal properties of materials
- Ionic liquids properties and applications
- Supramolecular Chemistry and Complexes
- Multicomponent Synthesis of Heterocycles
- Tribology and Wear Analysis
- Advanced battery technologies research
- Advanced Polymer Synthesis and Characterization
- Catalytic Processes in Materials Science
- Mesoporous Materials and Catalysis
Peking University
2023-2025
Beijing University of Chemical Technology
2020
Materials Science & Engineering
2020
East China Normal University
2012-2013
Zhengzhou Normal University
2013
One of the primary challenges in commercializing perovskite solar cells (PSCs) is achieving both high power conversion efficiency (PCE) and sufficient stability. We integrate wafer-scale continuous monolayer MoS 2 buffers at top bottom a layer through transfer process. These films physically block ion migration into carrier transport layers chemically stabilize formamidinium lead iodide phase strong coordination interaction. Effective chemical passivation results from formation Pb-S bonds,...
Formamidinium lead triiodide (FAPbI 3 ) is considered the most promising composition for high-performing single-junction solar cells. However, nonalloyed α-FAPbI metastable with respect to photoinactive δ-phase. We have developed a kinetic modulation strategy fabricate high-quality and stable films, assisted by cogenetic volatile iodine intercalation decalation. The of facilitated formation corner-sharing Pb-I framework building blocks reduced barrier formation, whereas decalation improved...
To achieve high power conversion efficiency in perovskite/silicon tandem solar cells, it is necessary to develop a promising wide-bandgap perovskite absorber and processing techniques relevance. date, the performance of devices based on still limited mainly by carrier recombination at their electron extraction interface. Here, we demonstrate assembling binary two-dimensional both alternating-cation-interlayer phase Ruddlesden−Popper passivate perovskite/C60 The strategy takes effects not...
Abstract Perovskite solar cells (PSCs) have gained significant attention for their high efficiency, low cost, and versatile application possibilities, which are expected to play a critical role in shaping the future of photovoltaics (PV) markets. However, power conversion efficiency (PCE) stability large‐area PSCs still cannot meet industrialization requirements, mainly associated with unsatisfactory quality perovskite films. This review first identifies factors contributing film difference...
Abstract Metal halide perovskite solar cells (PSCs) have garnered much attention in recent years. Despite the remarkable advancements PSCs utilizing traditional metal electrodes, challenges such as stability concerns and elevated costs necessitated exploration of innovative electrode designs to facilitate industrial commercialization. Herein, a physically chemically stable molybdenum (Mo) is developed fundamentally tackle instability factors introduced by electrodes. The combined spatially...
Abstract Perovskite solar cells (PSCs) have significant potential for next‐generation photovoltaic technology applications. However, the instability of hole transport layers (HTLs) becomes major obstacle to long‐term operational devices, which are affected by intrinsic thermal and loose structure materials, as well hygroscopicity migration dopants. Here, poly(3‐hexylthiophene‐2,5‐diyl) (P3HT) is used a model crystalline polymer thoroughly investigate effective p‐type doping strategies...
Enhancing the lifetime of perovskite solar cells (PSCs) is one essential challenges for their industrialization. Although external encapsulation protects device from erosion moisture and oxygen under various harsh conditions. However, devices still undergo static dynamic thermal stress during cycling aging, respectively, resulting in irreversible damage to morphology, component, phase stacked materials. Herein, viscoelastic polymer polyvinyl butyral (PVB) material designed onto surface films...
Abstract An efficient and environmentally benign procedure for the reactions of three components condensation salicylaldehyde two different CH acids to give 2‐amino‐4 H ‐chromenes catalyzed by a series basic‐functionalized ionic liquids was reported. The most possible reaction pathway proposed first time performing density functional theory (DFT) calculations. Both cation anion [Bmim]OH have cooperative effect on reaction. [Bmim] + increases electrophilicity via intermolecular hydrogen...
Vacuum lamination encapsulation is widely adopted to prolong the duration of perovskite solar cells (PSCs) in real operation. However, additional encapsulant along with rigorous processing conditions leads severe power conversion efficiency (PCE) loss corresponding devices. Herein, thermal and optical simulations experiments are combined, analyze mechanisms for device failure during vacuum lamination. Single‐glass structure proposed, which exhibits enhanced conductivity, ensuring thorough...
Switchable RAFT agents, so-called because they can be reversibly switched by an acid/base stimulus to offer very good control over polymerization of both MAMs and LAMs, provide a route prepare well-defined polyMAM-<italic>block</italic>-polyLAM copolymers.
Abstract Low‐dimensional perovskites have opened up a new frontier in light‐emitting diodes (LED) due to their excellent properties. However, concerns regarding the potential toxicity of Pb limited commercial development. Sn‐based are regarded as promising candidate replace Pb‐based counterparts, while they generally exhibit strong electron–phonon coupling and consequently blue emission quenching at room temperature (RT), thus perovskite LED devices not yet been reported. Herein,...
Compared with post-grafting method, a novel and controllable strategy is applied to introduce highly dispersed ionic liquid species into mesoporous SBA-15 silica, providing simpler synthesis steps, more uniform surface coverage higher loading of liquid, fewer raw materials.Basic task-specific liquids are synthesized characterized by X-ray diffraction, N 2 adsorption-desorption, thermogravimetry fourier transform infrared spectroscopy.The results showed that the catalysts, prepared...