A5006413168- Advancements in Battery Materials
- Advanced Battery Materials and Technologies
- Silicon and Solar Cell Technologies
- Advanced Battery Technologies Research
- Semiconductor materials and devices
- Perovskite Materials and Applications
- Thin-Film Transistor Technologies
- Advanced battery technologies research
- Advanced ceramic materials synthesis
- solar cell performance optimization
- Semiconductor materials and interfaces
- Synthesis and characterization of novel inorganic/organometallic compounds
- Polyoxometalates: Synthesis and Applications
- Gold and Silver Nanoparticles Synthesis and Applications
- Solid State Laser Technologies
- Optical properties and cooling technologies in crystalline materials
- Advanced Polymer Synthesis and Characterization
- Advanced Memory and Neural Computing
- Silicon Nanostructures and Photoluminescence
- Bone Tissue Engineering Materials
- Synthesis and properties of polymers
- Antimicrobial agents and applications
- Ferroelectric and Piezoelectric Materials
- Catalysis and Oxidation Reactions
- Chalcogenide Semiconductor Thin Films
Fudan University
2024
Shandong Academy of Sciences
2023
Qilu University of Technology
2023
University of Michigan
2020-2021
Ann Arbor Center for Independent Living
2020
North China Electric Power University
2017
Deterministic integration of phase-pure Ruddlesden-Popper (RP) perovskites has great significance for realizing functional optoelectronic devices. However, precise fabrications artificial perovskite heterostructures with pristine interfaces and rational design over electronic structure configurations remain a challenge. Here, the controllable synthesis large-area ultrathin single-crystalline RP nanosheets deterministic fabrication arbitrary 2D vertical are reported. The exhibit intriguing...
Ruddlesden-Popper quasi-2D perovskites represent robust candidates for optoelectronic applications, achieving a delicate balance between outstanding photoresponse and stability. However, mitigating the internal defects in polycrystalline films remains challenging, their performances still lag behind that of 3D counterparts. This work highlights profound impact defect passivation at buried interface grain boundaries through dual-cation-release strategy. Cations released from pre-deposited...
It has previously been shown that ex situ phosphorus-doped polycrystalline silicon on oxide (poly-Si/SiOx) passivating contacts can suffer a pronounced surface passivation degradation when subjected to firing treatment at 800 °C or above. The behavior depends strongly the processing conditions, such as dielectric coating layers and temperature. current work further studies stability of poly-Si proposes mechanism for observed based role hydrogen. Secondary ion mass spectrometry is applied...
Abstract Tunnelling oxide passivated contact (TOPCon) solar cells are gaining significant commercial interest, due to the potential for high efficiency. Industrially, this scheme is typically coupled with an n‐type Czochralski (Cz) wafer. JinkoSolar Holding Co., Ltd. one of leading manufacturers that producing TOPCon (referred as ‘HOT’ cells) on a scale. In work, influence post‐cell hydrogenation step, using illumination from LED light source, performance and stability investigated. The...
We report here efforts to synthesize free-standing, dry polymer electrolytes that exhibit superior ionic conductivities at ambient for Li-S batteries. Co-dissolution of poly(ethylene oxide) (PEO) (Mn 900k) with LixPON and LixSiPON systems a ratio approximately 3:2 followed by casting provides transparent, solid-solution films 25-50 μm thick, lowering PEO crystallinity, providing measured impedance values 0.1-2.8 × 10-3 S/cm ambient. These are much higher than simple PEO/Li+ salt systems....
LiPON-like glasses that form lithium dendrite impenetrable interfaces between battery components are enabling materials may replace liquid electrolytes permitting production of all-solid-state batteries (ASBs). Unfortunately, to date, such introduced only via gas-phase deposition. Here, we demonstrate the design and synthesis easily scaled, low-temperature, low-cost, solution-processable inorganic polymers containing LiPON/LiSiPON elements. OPCl3 hexachlorophosphazene [Cl2P═N]3 provide...
We report here a method of synthesizing self-reinforced epoxy resin nanocomposites via oxysilylation that avoids the use polyamines. Nanocomposites with three-dimensional (3-D) ordered architectures can be produced by reaction [HSiMe2OSiO1.5]8 (OHS) linked diepoxides using Piers–Rubinsztajn or oxysilylation. describe several basic aspects TMDS (HMe2SiOSiMe2H, tetramethyldisiloxane), OHS, D4H [(CH3SiHO)4, tetramethylcyclotetrasiloxane], and D5H [(CH3SiHO)5, pentamethylcyclopentasiloxane] in...
A novel solid electrolyte system, Li<sub>x</sub>SiON (<italic>x</italic> = 2, 4, and 6), derived from agricultural waste, rice hull ash, by polymer precursor syntheses.
Efforts to develop polymer precursor electrolytes that offer properties anticipated be similar or superior (lithium phosphorus oxynitride, LiPON) glasses are reported. Such precursors the potential used process LiPON-like thin glass/ceramic coatings for use in all solid state batteries, ASBs. Here, LiPON provide a design basis synthesis of sets oligomers/polymers by lithiation OP(NH2)3–x(NH)x [from OP(NH)3],OP(NH2)3-x(NHSiMe3)x and [P═N]3(NHSiMe3)6–x(NH)x. The resulting systems have degrees...
Perovskite semiconductor materials have attracted significant attention in the fields of photovoltaics and luminescence due to their excellent photoelectric properties, such as high carrier mobility, absorption coefficient, fluorescence quantum yield. In particular, low-dimensional metal-halide perovskite microcrystalline been reported exhibit lasing phenomena laser devices gain widely tunable bandgap. this Letter, one-dimensional (1-D) ZnO microwires with ultraviolet emissions are utilized...
The considerable demand for renewable energy sources and the mounting concern about environmental pollution has created a new development opportunity in field of secondary batteries, which can store chemical place electrical energy. In 2010s, attention was drawn to sodium batteries. A sodium-ion battery (SIB) is specific kind that be recharged, given plentiful element on Earth more stable than lithium Consequently, there been growing body research activity this field. This article will...
Abstract Zirconia toughened aluminas (ZTAs) are one of the most important engineering ceramics with high melting points, excellent mechanical strength, and chemical stability, commonly used as wear resistant high‐temperature components, prosthetic implants, electric circuit substrates. In this work, we explore methods processing fine‐grained, dense, thin, free‐standing (ZrO 2 ) x (Al O 3 1− films ( = 0‐50 mol%, ~40 μm thick) by sintering flame made nanopowders (NPs) to optimize t ‐ZrO...
We introduced alkaline treatment for the rear side of bifacial solar cells to improve optical performance. With additional treatment, Jsc nFAB increased by ~4mA/cm2, and over 96% factor achieved.
Double epoxy group double quaternary ammonium salts (DEpDQAS) were synthesized by epichlorohydrin (ECH) reacting with N,N,N'N'-tetramethylethylenediamine (TMEDA) and N,N,N'N'-tetramethyl-1,6-hexanediamine (TMHDA), respectively. The results of orthogonal experiments showed that temperature time the key factors influencing on value quaternarization ratio optimal condition for higher was reaction at 15 °C methanol as solvent. kinetic process determined conductivity, which had a short induction...
Abstract Metal nitrides are intensely investigated because they can offer high melting points, excellent corrosion resistance, hardness, electronic and magnetic properties superior to the corresponding metals/metal oxides. Thus, used in diverse applications including refractory materials, semiconductors, devices, energy storage/conversion systems. Here, we present a simple, novel, scalable general route metal nitride precursors by reactions of chlorides with hexamethyldisilazane [HMDS, (Me 3...