A5057368943- Perovskite Materials and Applications
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Solid-state spectroscopy and crystallography
- Conducting polymers and applications
- Advanced NMR Techniques and Applications
- Quantum Dots Synthesis And Properties
- Magnetism in coordination complexes
- Chalcogenide Semiconductor Thin Films
- Metal-Organic Frameworks: Synthesis and Applications
- Ferroelectric and Piezoelectric Materials
- Crystal structures of chemical compounds
- Acoustic Wave Resonator Technologies
- Inorganic Chemistry and Materials
- Nonlinear Optical Materials Research
- Organic and Molecular Conductors Research
- Organic Electronics and Photovoltaics
- 2D Materials and Applications
- Organic Light-Emitting Diodes Research
- Viral Infectious Diseases and Gene Expression in Insects
- Polyoxometalates: Synthesis and Applications
- Electron Spin Resonance Studies
- Catalysis for Biomass Conversion
- Supercapacitor Materials and Fabrication
Wenzhou Medical University
2023
East China Normal University
2019-2022
Hefei University of Technology
2016
For nearly 100 y, homochiral ferroelectrics were basically multicomponent simple organic amine salts and metal coordination compounds. Single-component ferroelectric crystals with high-Curie temperature (Tc) phase transition very rarely reported, although the first Rochelle salt discovered in 1920 is a compound. Here, we report pair of single-component enantiomorphic ferroelectrics, (R)-3-quinuclidinol (S)-3-quinuclidinol, as well racemic mixture (Rac)-3-quinuclidinol. The (R)-...
By using a lead-free AgBi-based scheme, we successfully synthesized two-dimensional double perovskite ferroelastic (DPA) 4 AgBiBr 8 with high T c of 375 K and narrow band gap 2.44 eV, where DPA is 2,2-dimethylpropan-1-aminium.
Abstract Surface passivation via post-treatment is an important strategy for improving power conversion efficiency and operational stability of perovskite solar cells. However, so far the interaction mechanisms between passivating additive are not well understood. Here, we report atomic-scale surface 2,2-difluoroethylammonium bromine (2FEABr) on MAPbI 3 . It found that bulky 2FEA + cations tend to distribute at film surface, while Br − anions diffuse from into bulk. A combination 19 F, 207...
Abstract Applications of organic–inorganic formamidinium (FA) lead triiodide (FAPbI 3 ) perovskites in high-efficiency solar cells often suffer from spontaneous α-to-δ phase transitions. However, current efforts to inhibit this phenomenon based on simple cation and anion alloying strategies continue unintended consequences, such as unfavorable shifts the bandgap energy unwanted separation during operation. The present work compares effects bromine (Br) dimethylamine (DMA) structure...
Abstract Chlorine incorporation engineering has been widely used in optoelectronic devices based on methylammonium lead iodide (MAPbI 3 ) perovskites. However, the characteristics of I/Cl alloying structures MAPbI 3− x Cl mixed-halide perovskites and their influences properties have issues a long-standing controversy. Here, we present detailed study ( = 0.0 to 0.3) single crystals. We found that small amount can substitute for PbI inorganic lattice, leading phase transition from tetragonal...
Abstract 2D organic–inorganic hybrid perovskites (OIHPs) have become one of the hottest research topics due to their excellent environmental stability and unique optoelectronic properties. Recently, ferroelectricity thermochromism OIHPs attracted increasing interests. Integrating into can significantly promote development multichannel intelligent devices. Here, a novel Dion‐Jacobson OIHP formula (3AMP)PbI 4 (where 3AMP is 3‐(aminomethyl)pyridinium) reported, which has remarkable spontaneous...
Methylammonium lead bromine (MAPbBr3) perovskites have shown great potential for a wide variety of optoelectronic applications. However, the structural and dynamic properties MAPbBr3 been typically probed in absence illumination. The present study addresses this issue by applying situ solid-state 2H nuclear magnetic resonance (NMR) spectroscopy to investigate rotational dynamics orientations MA cations different phase structures detail. results indicate that are widely distributed...
The tungstoaluminate-anchored ruthenium cluster catalyst is efficient and recyclable for the selective hydrogenation of methyl levulinate (ML) to gamma-valerolactone or 4-hydroxypentanoate.
Considerable progress has been made in improving the performance of optoelectronic devices based on hybrid organic-inorganic perovskites form ABX3. However, influences A-site doping structure and dynamics inorganic perovskite crystal lattice and, turn, resulting remain poorly understood at an atomic level. This work addresses this issue by combining results several experimental characterization methods for three-dimensional MA1-xDMAxPbBr3 single crystals (MA, methylammonium; DMA,...
Hybrid perovskites have many excellent properties that make them outstanding candidates for use in optoelectronic devices. Nonetheless, hybrid present numerous fundamental issues are not yet fully understood. The study seeks to address this problem by reporting on the occurrence of ultraslow dynamic orientation changes methylammonium (MA) cations and corresponding inorganic lattice MAPbI3 perovskite crystals occurring over a time scale 100 s under continuous illumination based situ single...