A5101686270- Perovskite Materials and Applications
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Advanced ceramic materials synthesis
- Graphite, nuclear technology, radiation studies
- Chalcogenide Semiconductor Thin Films
- Graphene research and applications
- Fiber-reinforced polymer composites
- Advancements in Battery Materials
- Advanced Photocatalysis Techniques
- Aluminum Alloys Composites Properties
- Organic Electronics and Photovoltaics
- MXene and MAX Phase Materials
- Solid-state spectroscopy and crystallography
- Semiconductor materials and devices
- Silicon Carbide Semiconductor Technologies
- Organic Light-Emitting Diodes Research
- ZnO doping and properties
- Ion-surface interactions and analysis
- Diamond and Carbon-based Materials Research
- Arsenic contamination and mitigation
- Thin-Film Transistor Technologies
- Geochemistry and Elemental Analysis
- 2D Materials and Applications
- Advanced materials and composites
Shanghai Institute of Applied Physics
2016-2025
Chinese Academy of Sciences
2016-2025
Shanghai Synchrotron Radiation Facility
2020-2025
Shanghai Advanced Research Institute
2019-2024
University of Chinese Academy of Sciences
2017-2023
Shanghai Zhangjiang Laboratory
2021
Dalian National Laboratory for Clean Energy
2020
Key Laboratory of Nuclear Radiation and Nuclear Energy Technology
2014-2016
An efficient electron transport layer (ETL) plays a key role in promoting carrier separation and extraction planar perovskite solar cells (PSCs). effective composite ETL is fabricated using carboxylic-acid- hydroxyl-rich red-carbon quantum dots (RCQs) to dope low-temperature solution-processed SnO2 , which dramatically increases its mobility by ≈20 times from 9.32 × 10-4 1.73 10-2 cm2 V-1 s-1 . The achieved one of the highest reported mobilities for modified Fabricated PSCs based on this...
The development of effective and stable hole transporting materials (HTMs) is very important for achieving high‐performance planar perovskite solar cells (PSCs). Herein, copper salts (cuprous thiocyanate (CuSCN) or cuprous iodide (CuI)) doped 2,2,7,7‐tetrakis( N , ‐di‐ p ‐methoxyphenylamine)‐9,9‐spirobifluorene (spiro‐OMeTAD) based on a solution processing as the HTM in PSCs demonstrated. incorporation CuSCN (or CuI) realizes p‐type doping with efficient charge transfer complex, which...
MQDs-SnO<sub>2</sub>-modulated perovskite crystallization processes visualized by <italic>in situ</italic> 2D GIXRD technique.
Low toxicity and an ideal energy bandgap make two-dimensional (2D) Ruddlesden–Popper tin-based halide perovskites a promising photovoltaic material. However, the disordered crystal orientation oxidation of Sn2+ to Sn4+ still need be addressed. Here, we demonstrate that annealing FASnI3 assisted by phenyl ethylammonium chloride enables formation more ordered 2D perovskite crystals oriented vertically. We use in situ synchrotron-based grazing incident X-ray diffraction correlate higher better...
The introduction of an ammonia modified graphene oxide (GO:NH3) layer into perovskite-based solar cells (PSCs) with a structure indium–tin (ITO)/poly(3,4-ethylene-dioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS)-GO: NH3/CH3NH3PbI3–xClx/phenyl C61-butyric acid methyl ester (PCBM)/(solution Bphen) sBphen/Ag improves their performance and perovskite stability significantly. fabricated devices champion PCE up to 16.11% are superior in all the performances comparison reference without GO:NH3...
Abstract Using poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) as hole conductor, a series of inverted planar CH 3 NH PbI 3−x Cl x perovskite solar cells (PSCs) were fabricated based on annealed by an improved time-temperature dependent (TTD) procedure in flowing nitrogen atmosphere for different time. Only after optimum annealing time, optimized power conversion efficiency 14.36% could be achieved. To understand their performance dependence situ real-time...
Abstract The tin (IV) oxide (SnO 2 ) electron transport layer (ETL) has been widely employed to fabricate high‐performance perovskite solar cells (PSCs). It reported that carbon quantum dots (CQDs) can be used enhance mobility of SnO . However, an in‐depth understanding the driving force in this process is still lacking. Here, a high‐angle annular dark‐field scanning transmission microscope (HAADF‐STEM) employed, for first time, reveal crystal face changes with one new type CQD doping....
Despite rapid successful developments toward promising perovskite solar cells (PSCs) efficiency, they often suffer significant hysteresis effects. Using synchrotron-based grazing incidence X-ray diffraction (GIXRD) with different probing depths by varying the incident angle, we found that films consist of dual phases a parent phase dominant in interior and child smaller (110) interplanar space (d(110)) after thermal annealing (RTA), which is widely used post treatment to improve...
Crystallization modulation and defect passivation are key for high performance perovskite solar cells (PSCs) through suppressing defects in the surface and/or near grain boundaries (GBs) of solution-processed films.
Carbon-carbon (C/C) composites have attracted significant attention in molten salt reactor(MSR) environments due to their exceptional mechanical properties, high-temperature resistance, and corrosion resistance. Understanding the infiltration effects of C/C at microstructural level is essential, which plays a key factor assess service behavior MSR. Herein, we explore synergies vacuum heat treatment on properties composites, employing acoustic emission (AE) technology monitor damage evolution...
Organic-inorganic hybrid perovskites as promising light-harvesting materials have been the focus of scientific research and development photovoltaics recently. Especially, metal halide currently become one most competitive candidates for fabrication solar cells with record certified efficiency over 25%. Despite high efficiency, many fundamental questions remain unclear need to be addressed at both material device levels, such weaker stability, poorer reproducibility, easier degradation...
11-Mercaptoundecanoic acid (MUA)-stabilized gold nanoparticles (AuNPs) embedded in copper phthalocyanine (CuPc) were used as a buffer layer between poly(3-hexyl-thiophene) (P3HT)/[6,6]-phenyl C61-butyric methyl ester (PCBM) bulk heterojunction and anodic indium–tin oxide (ITO) substrate. As systematic synchrotron-based grazing incidence X-ray diffraction (GIXRD) experiments demonstrated that the AuNPs present can improve microstructure of active with better lamella packing P3HT from surface...
Fundamental understanding on the spin transport properties of semiconducting organic–inorganic hybrid perovskites (OIHP) is great importance for advancing their applications spin-optoelectronic devices. Herein, study spin-pumping induced inverse Hall effect in Ni80Fe20(Py)/CH3NH3PbCl3-xIx/Pt trilayers with different OIHP spacer thicknesses concludes diffusion length CH3NH3PbCl3-xIx as large 61 ± 7 nm at room temperature. In addition, spin-valves a structure...
The interaction between nuclear graphite and molten fluoride salts (46.5 mol % LiF/11.5 NaF/42 KF) is investigated by synchrotron X-ray diffraction C K-edge absorption near-edge structure (XANES). It found that there are a large number of H atoms in IG-110 graphite, which attributed to the residual C–H bond after graphitization process petroleum coke pitch binder. elastic recoil detection analysis indicates uniformly distributed excellent agreement with XANES results. results indicate...
The electron‐transport layer (ETL) of n–i–p‐structured perovskite solar cells (PSCs) plays vital important roles determining their photovoltaic performance. It is known that the ETL lying underneath can affect crystallization process upper layer. Furthermore, buried interface between and usually place where severe non‐radiative recombination happens. Herein, MXene (Ti 3 C 2 )‐modified TiO (TiO :MXene) demonstrated as an excellent for high‐performance PSCs. FAPbI ‐based MAPbI with :MXene...