A5102977847- Perovskite Materials and Applications
- Conducting polymers and applications
- Advanced Photocatalysis Techniques
- TiO2 Photocatalysis and Solar Cells
- Quantum Dots Synthesis And Properties
- Organic Electronics and Photovoltaics
- Chalcogenide Semiconductor Thin Films
- ZnO doping and properties
- Solid-state spectroscopy and crystallography
- Electrocatalysts for Energy Conversion
- Advancements in Battery Materials
- Organic Light-Emitting Diodes Research
- Advanced Nanomaterials in Catalysis
- Extraction and Separation Processes
- Magnetic and transport properties of perovskites and related materials
- Advanced Battery Materials and Technologies
- Gas Sensing Nanomaterials and Sensors
- Advanced Condensed Matter Physics
- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- Electronic and Structural Properties of Oxides
- Transition Metal Oxide Nanomaterials
- Metal-Organic Frameworks: Synthesis and Applications
- Rare-earth and actinide compounds
- Public Procurement and Policy
Shandong University of Science and Technology
2023-2025
China Pharmaceutical University
2025
National Laboratory for Superconductivity
2024
Institute of Physics
2024
Chinese Academy of Sciences
2024
University of Chinese Academy of Sciences
2024
Beijing Institute of Technology
2006-2023
Fuzhou University
2013-2019
Advanced Energy Materials (United States)
2015-2018
Abstract Enhancing device lifetime is one of the essential challenges in perovskite solar cells. The ultrathin Eu‐MOF layer introduced at interface between electron‐transport and absorber to improve stability. Both Eu ions organic ligands MOF can reduce defect concentration carrier transport. Moreover, due Förster resonance energy transfer effect, films light utilization decomposition under ultraviolet light. Meanwhile, also turns tensile strain compressive films. As a result, corresponding...
Perovskite/silicon tandem solar cells are promising to penetrate photovoltaic market. However, the wide-bandgap perovskite absorbers used in top-cell often suffer severe phase segregation under illumination, which restricts operation lifetime of cells. Here, a strain modulation strategy fabricate light-stable perovskite/silicon is reported. By employing adenosine triphosphate, residual tensile absorber successfully converted compressive strain, mitigates light-induced ion migration and...
Abstract Formamidinium (FA)‐based lead triiodide have emerged as promising light‐harvesting materials for solar cells due to their intriguing optoelectronic properties. However, obstacles commercialization remain regarding the primary intrinsic instability, wherein volatile organic components of FA + cations are prone escape under operational stressors. Herein, stabilizing FA‐based perovskite through toughening interface with symmetric molecule 1,1′‐(Methylenedi‐4,1‐phenylene) bismaleimide...
Metal halide perovskites are promising as next-generation photovoltaic materials, but stability issues still a huge obstacle to their commercialization. Here, the formation and evolution of cracks in perovskite films during thermal cycling, which affect mechanical stability, investigated. Compressive strain is employed suppress delamination by situ formed polymers with low elastic modulus crystal growth. The resultant devices pass thermal-cycling qualification (IEC61215:2016), retaining 95%...
A ZIF-8 modified interface increases the grain size of perovskite crystals, resulting in a maximum PCE 16.99%.
Because of unique optoelectronic properties, such as extended carrier lifetime, large absorption coefficient, high defect tolerance factor, low exciton binding energy, and ambipolar diffusion, metal halide perovskites display enormous potential for the next generation photovoltaics. Flexible perovskite solar cells with weight, flexibility, conformability have attracted attention portable electronic products. The interface is crucial in both photovoltaic efficiency operational stability. A...
Abstract Mixed‐halide perovskites are emerging as excellent photovoltaic candidates because of their tunable bandgaps for semitransparent and tandem perovskite solar cells. However, the notorious film quality originated from rapidly downward crystallization process susceptibly propagates enormous detrimental defects, which deteriorate performance accelerate halide segregation. To address this issue, herein, a multilayer alkalis‐intercalated‐vermiculite is employed pre‐buried interface...
Abstract The passivation of the defects derived from rapid‐crystallization with electron‐donating molecules is always a prerequisite to obtain desirable perovskite films for efficient and stable solar cells, thus, in‐depth understanding on correlations between molecular structure capacity great importance screening passivators. Here, we introduce double‐ended amide molecule into precursor solution modulate crystallization process passivate defects. By regulating intermediate bridging...
Abstract Active oxygen highly affects the efficiency and stability of perovskite solar cells (PSCs) owing to capacity either passivate defects or decompose lattice. To better understand in‐depth interaction, we demonstrate for first time that photooxidation mechanism in all‐inorganic film dominates phase deterioration kinetics by forming superoxide species presence light oxygen, which is significantly different from organic‒inorganic hybrid even tin‐based perovskites. In perovskites, prefer...
Hierarchically porous rutile TiO2 microspheres composed of nanorods were fabricated by using a facile synthetic route. These materials characterized X-ray diffraction (XRD), N2 adsorption–desorption, and scanning transmission electron microscopy (SEM TEM). Based on series experimental results, self-assembly process for the formation hierarchical was also proposed. Furthermore, hierarchically used as negative electrode material in lithium-ion batteries (LIBs) demonstrated large reversible...
Metal–organic frameworks (MOFs) have been generating a great deal of interest due to their high specific surface area, regular pore structure, and adjustable aperture. However, only few studies explored application in the field photovoltaic devices. In present work, MIL-125(Ti), one kind MOFs, was investigated as precursor for TiO2 photoanode dye-sensitized solar cells first time. Herein, pure anatase with hierarchical structure synthesized through decomposition which avoids use templates...
NiS nanosheets on ITO substrates were synthesized with in situ growth via a one-step hydrothermal route, and exhibited an efficiency of 7.08% which was comparable to the solar cell based Pt electrode (7.01%) under similar conditions.
Perovskite solar cells (PSCs) have become a promising candidate for the next-generation photovoltaic technologies. As an essential element high-efficiency PSCs however, heavy metal Pb is soluble in water, causing serious threat to environment and human health. Due weak ionic bonding three-dimensional (3D) perovskites, drastic structure decomposition occurs when immersing perovskite film which accelerates leakage. By introducing chemically stable Dion-Jacobson (DJ) 2D at 3D surface,...
Abstract Special attention should be devoted to the thermal stability of hybrid perovskite solar cells (PSCs), because they are often operated at elevated temperatures. However, effective strategies lacking for manipulation heat flow in PSCs improve their stability. Here, a holistic solution is reported rapid removal dissipated within absorber by introducing hexagonal boron nitride (h‐BN) inside and radiator fin outside device. This strategy significantly improves conductivity speeds up...
Abstract It is challenging to achieve long‐term stability of perovskite solar cells due the corrosion and diffusion metal electrodes. Integration compact barriers into devices has been recognized as an effective strategy protect absorber electrode. However, difficulty construct a thin layer few nanometers that can delay ion migration impede chemical reactions simultaneously, in which delicate microstructure design stable material plays important role. Herein, ZrN x barrier films with high...
Perovskite solar cells (PSCs) have attracted extensive attention in photovoltaic applications owing to their superior efficiency, and the buried interface plays a significant role determining efficiency stability of PSCs. Herein, plant-derived small molecule, ergothioneine (ET), is adopted heal defective CsPbIBr2-based PSC improve power conversion (PCE). Because strong interaction between Lewis base groups (–C═O –C═S) ET uncoordinated Pb2+ perovskite film from theoretical simulations...
Abstract ZIF‐8, a kind of widely studied metal‐organic frameworks, was used for the interfacial modification dye‐sensitized solar cells by facile post‐treatment strategy first time, which solved problem severely decreased short‐circuit photocurrent in previous report. After surface treatment, performance obviously improved. The conditions deposition ZIF‐8 were optimized. best photovoltaic property obtained when growth time 7 min and TiO 2 photoanode post‐treated times. Besides energy barrier...
Metal-organic frameworks (MOFs) have been used in the area of photovoltaic devices via a novel approach proposed here for first time. Hierarchical ZnO parallelepipeds were prepared from MOF precursor, which could then act as an effective light scattering layer dye-sensitized solar cells, leading to significantly improved cell performance.
In the present work, a new reflux condensation route has been developed for synthesizing Zn2SnO4 film, which was first used as compact layer in perovskite solar cell (PSC) and achieved an efficiency of 20.1%. The high PSC could be contributed to following: (i) PSC, exhibits electron mobility appropriate energy band structure, resulting efficient extraction carriers transport electrons; (ii) surface FTO substrate is completely covered by layer, direct contact between prevented, leading...
Alkylamines improve the efficiency and stability of carbon-based hole-transport-material free CsPbIBr 2 perovskite solar cells through strain engineering.
An n/n − homojunction at the top perovskite/carbon interface is realized by doping natural additive for accelerating charge extraction and suppressing carrier nonradiative recombination in carbon-based CsPbI 2 perovskite solar cells.