A5088397015- Perovskite Materials and Applications
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Solid-state spectroscopy and crystallography
- Additive Manufacturing Materials and Processes
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- High Entropy Alloys Studies
- Luminescence Properties of Advanced Materials
- Organic Electronics and Photovoltaics
- Welding Techniques and Residual Stresses
- Polyoxometalates: Synthesis and Applications
- Advanced battery technologies research
- Radiation Detection and Scintillator Technologies
- Gas Sensing Nanomaterials and Sensors
- Additive Manufacturing and 3D Printing Technologies
- Groundwater flow and contamination studies
- Financial Crisis of the 21st Century
- Sulfur-Based Synthesis Techniques
- Organic and Molecular Conductors Research
- Advanced Chemical Sensor Technologies
- Synthesis and Reactivity of Sulfur-Containing Compounds
- Copper-based nanomaterials and applications
- Chemical Synthesis and Reactions
Shenzhen Technology University
2024
Shenzhen University
2024
Shenzhen Institutes of Advanced Technology
2024
Chinese Academy of Sciences
2011-2024
Applied Physical Sciences (United States)
2022-2024
University of North Carolina at Chapel Hill
2022-2024
Southern University of Science and Technology
2023-2024
ShanghaiTech University
2017-2022
ORCID
2021
Shanghai Advanced Research Institute
1993-2015
The low toxicity and a near-ideal choice of bandgap make tin perovskite an attractive alternative to lead in cost solar cells. However, the development Sn cells has been impeded by their extremely poor stability when exposed oxygen. We report low-dimensional perovskites that exhibit markedly enhanced air comparison with 3D counterparts. reduced degradation under exposure is attributed improved thermodynamic after dimensional reduction, encapsulating organic ligands, compact film preventing...
The defective bottom interfaces of perovskites and hole-transport layers (HTLs) limit the performance p-i-n structure perovskite solar cells. We report that addition lead chelation molecules into HTLs can strongly interact with lead(II) ion (Pb 2+ ), resulting in a reduced amorphous region near passivated surface. minimodule an aperture area 26.9 square centimeters has power conversion efficiency (PCE) 21.8% (stabilized at 21.1%) is certified by National Renewable Energy Laboratory (NREL),...
The light-emitting diodes (LEDs) used in indoor testing of perovskite solar cells do not expose them to the levels ultraviolet (UV) radiation that they would receive actual outdoor use. We report degradation mechanisms p-i-n-structured under unfiltered sunlight and with LEDs. Weak chemical bonding between perovskites polymer hole-transporting materials (HTMs) transparent conducting oxides (TCOs) dominate accelerated A-site cation migration, rather than direct HTMs. An aromatic phosphonic...
Nitric oxide (NOx, including NO and NO2) is one of the most dangerous environmental toxins pollutants, which mainly originates from vehicle exhaust industrial emission. The development sensitive NOx gas sensors quite urgent for human health environment. Up to now, it still remains a great challenge develop sensor, can satisfy multiple application demands sensing performance (such as high response, low detection temperature, limit). In this work, ultrathin In2O3 nanosheets with uniform...
All-inorganic metal halide perovskites are noted for their excellent optoelectronic properties and good chemical stability but also a propensity to transform into nonperovskite phases. A case in point is lead-free CsSnCl3, whose perovskite Phase I metastable at room temperature could not be stabilized by partial substitution of Cs+ or Cl–. Judging from the radii constituent ions we paid attention octahedral cations smaller than Sn2+ selected Mn2+ In3+ B-site. quantitative structural...
Stabilizing perovskite solar cells requires consideration of all defective sites in the devices. Substantial efforts have been devoted to interfaces, while stabilization grain boundaries received less attention. Here, we report on a molecule tributyl(methyl)phosphonium iodide (TPI), which can convert into wide bandgap one-dimensional (1D) that is mechanically robust and water insoluble. Mixing TPI with precursor results wrapping grains both surfaces converted several nanometer-thick 1D...
Layered perovskites have been broadly applied in perovskite solar cells and light-emitting diodes to enhance device stability, but the poor carrier transport property along out-of-plane direction for all known Ruddlesden–Popper (RP) layered imposes constraints their application. Herein, using transient photoluminescence mapping, we visualized that of carriers or excitons is comparable in-plane a Dion–Jacobson (DJ) perovskite, which has reduced ligand length stronger I···I electronic...
Perovskite solar cells (PSCs) are promising to reduce the cost of photovoltaic system due their low-cost raw materials and high-throughput solution process; however, fabrication all active layers in perovskite modules using a scalable process has not yet been demonstrated. Herein, highly efficient PSCs ambient conditions is reported, with bladed except metal electrode, by blading 36 ± 9 nm-thick electron-transport layer (ETL) on films roughness ≈80 nm. A combination additives phenyl-C61...
Abstract Methylammonium lead tribromide (MAPbBr 3 ) stands out as the most easily grown wide‐band‐gap metal halide perovskite. It is a promising semiconductor for room‐temperature gamma‐ray ( γ ‐ray) spectroscopic detectors, but no operational devices are realized. This can be largely attributed to lack of understanding point defects and their influence on detector performance. Here, through combination crystal growth design defect characterization, including positron annihilation impedance...
Semiconducting lead triiodide perovskites (APbI3 ) have shown remarkable performance in applications including photovoltaics and electroluminescence. Despite many theoretical possibilities for A+ APbI3 , the current experimental knowledge is largely limited to two of these materials: methylammonium (MA+ formamidinium (FA+ triiodides, neither which adopts ideal, cubic perovskite structure at room temperature. Here, a volume-based criterion proposed be stable, materials MA1-x EAx PbI3 (MEPI,...
The efficiency of small-area perovskite-silicon tandem solar cells is already above 30%; however, there are few studies about large-area cells. One main challenge for the upscaling tandems non-uniformity perovskites across large areas that can cause shunting, which becomes more serious when fabricated via a solution process. Here, we demonstrate fabrication efficient on industry-compatible Czochralski-grown and chemically etched rough silicon wafers using blading We employed lithium fluoride...
The TOF value of the ultra-tiny Co(OH)<sub>2</sub>/GO nanocomposite electrocatalyst is 2.7 times higher than that hydrothermally treated Co<sub>3</sub>O<sub>4</sub>/GO.
In this work, we synthesized and characterized the Methylhydrazinium Lead Trichloride MHyPbCl3(CH3NH2NH2PbCl3) perovskite as a fast neutron detector. The high hydrogen density of MHyPbCl3 enables efficient energy conversion from into recoiled proton through 1H(n,n)1H elastic scattering interaction, thereby, allowing for direct charge detection. Through IV characterization X-Ray excitation, crystal demonstrated resistivity at 4.43E11Ωcm good mobility-lifetime product (μτ) 9.1E-3 cm2V,...