A5087807772- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Perovskite Materials and Applications
- Organic Light-Emitting Diodes Research
- Catalytic C–H Functionalization Methods
- Catalytic Cross-Coupling Reactions
- Luminescence and Fluorescent Materials
- Sulfur-Based Synthesis Techniques
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Radical Photochemical Reactions
- Molecular Junctions and Nanostructures
- Fullerene Chemistry and Applications
- Semiconductor materials and interfaces
- Catalytic Alkyne Reactions
- Solid-state spectroscopy and crystallography
- Liquid Crystal Research Advancements
- Advanced battery technologies research
- Synthesis and Catalytic Reactions
- Advanced Photocatalysis Techniques
- Photochemistry and Electron Transfer Studies
- TiO2 Photocatalysis and Solar Cells
- Carbon Nanotubes in Composites
- Advanced Sensor and Energy Harvesting Materials
- Radiative Heat Transfer Studies
Zhengzhou University
2019-2025
State Grid Corporation of China (China)
2025
Fudan University
2025
Chengdu University of Information Technology
2016-2024
Craft Group (China)
2023
Chengdu University
2014-2021
State Council of the People's Republic of China
2021
Intel (United States)
2021
Nanjing Tech University
2016-2020
Shanghai Jiao Tong University
2020
Efficiency roll-off is a major issue for most types of light-emitting diodes (LEDs), and its origins remain controversial. Here we present investigations the efficiency in perovskite LEDs based on two-dimensional layered perovskites. By simultaneously measuring electroluminescence photoluminescence working device, supported by transient decay measurements, conclude that mainly due to luminescence quenching which likely caused non-radiative Auger recombination. This detrimental effect can be...
Compared with inorganic or perovskite solar cells, the relatively large non-radiative recombination voltage losses (ΔVnon-rad ) in organic cells (OSCs) limit improvement of open-circuit (Voc ). Herein, OSCs are fabricated by adopting two pairs D-π-A polymers (PBT1-C/PBT1-C-2Cl and PBDB-T/PBDB-T-2Cl) as electron donors a wide-bandgap molecule BTA3 acceptor. In these blends, charge-transfer state energy (ECT high 1.70-1.76 eV is achieved, leading to small energetic differences between singlet...
This review provides a detailed overview of PM6:Y6-based organic solar cells (OSCs), including the underlying mechanisms, terpolymers derived from PM6, ternary or quaternary OSCs, interfacial engineering and electrode progress.
Passivation of the grain boundaries CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> by bonding with a carbon quantum dot additive for efficient perovskite solar cells excellent environmental stability.
A third component featuring a planar backbone structure similar to the binary host molecule has been preferred ingredient for improving photovoltaic performance of ternary organic solar cells (OSCs). In this work, we explored new avenue that introduces 3D-structured molecules as guest acceptors. Spirobifluorene (SF) is chosen core combine with three different terminal-modified (rhodanine, thiazolidinedione, and dicyano-substituted rhodanine) benzotriazole (BTA) units, affording four-arm...
All-polymer solar cells (all-PSCs) have been regarded as one of the most promising candidates for commercial applications owing to their outstanding advantages such mechanical flexibility, light weight and stable film morphology. However, compared large amount new-emerging excellent polymer acceptors, development high-performance donor lags behind. Herein, a new D-π-A type donor, namely QQ1, was developed based on dithienoquinoxalineimide (DTQI) A unit, benzodithiophene with...
The flexible PSCs with ionic conductive elastomers achieved a record efficiency of 24.84% and self-repaired the cracks at 25 °C.
Abstract The cathode interlayer is crucial for the development of organic solar cells (OSCs), but research on simple and efficient materials lagging behind. Here, a donor‐acceptor (D–A) typed selenophene‐fused perylene diimide (PDI) derivative (SePDI3) developed as material (CIM) OSCs, non‐fused PDI (PDI3) used control CIM comparison. Compared to PDI3, SePDI3 shows stronger self‐doping effect better crystallinity, resulting in charge transport ability. Furthermore, interaction between L8‐BO...
Abstract The power conversion efficiency (PCE) of CsPbI 2 Br perovskite solar cells (PSCs) is still far from the theoretical due to pronounced losses in open‐circuit voltage ( V OC ). loss can be mitigated by employing an appropriate hole transport layer (HTL), which facilitates energy level alignment and minimizes interface recombination losses. In this work, two D‐π‐A type polymers are chosen, PE64 PE65, as HTLs, where pentacyclic dithieno[2,3‐d; 2′,3′‐d “]benzo[1,2‐b; 4,5‐b”]dithiophene...
Doubling up: A chemo- and regioselective oxidative cross-coupling between various N-heteroarene-containing arenes heteroarenes has been carried out by rhodium- or ruthenium-catalyzed twofold CH activation, to deliver an array of highly functionalized π-conjugated systems. As a service our authors readers, this journal provides supporting information supplied the authors. Such materials are peer reviewed may be re-organized for online delivery, but not copy-edited typeset. Technical support...
The chelation-assisted strategy has been endowed with some novel functions in the Rh(III)-catalyzed dehydrogenative coupling of indoles/pyrroles heteroarenes. While reaction conditions used are rather common, can close homo-coupling pathway each partner, and dramatically extend substrate scope along exclusive indole or pyrrole C2-site selectivity. This is first example describing that a catalytic system allows oxidative C–H/C–H hetero-coupling not only between two electron-rich heteroarenes...
Desulfitative CH arylation: Palladium-catalyzed desulfitative arylation of heteroarenes with sodium sulfinates has been disclosed to construct aryl–heteroaryl bonds without the need for any extra ligands (see scheme). Detailed facts importance specialist readers are published as "Supporting Information". Such documents peer-reviewed, but not copy-edited or typeset. They made available submitted by authors. Please note: The publisher is responsible content functionality supporting...
Abstract Rh III ‐catalyzed oxidative CH/CH cross‐coupling between (hetero)aromatic carboxylic acids and various heteroarenes has been accomplished to construct highly functionalized ortho ‐carboxy‐substituted bi(hetero)aryls. The use of a carboxy group as the directing obviates tedious steps for installation removal extra groups, enables facile one‐step synthesis ‐carboxy method provides opportunities rapid assembly library important fluorene coumarin‐type poly‐heterocycles through...
The perovskite-based optoelectronic applications always suffer from stability issues, due to the intrinsic chemical instability of perovskite materials. Besides, poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS) is utilized as an anode buffer layer in thin-film light-emitting diodes (PeLEDs), which may lead issues hygroscopic and acidic nature PEDOT:PSS. In this paper, inorganic metal oxide NiOx employed a hole injection (HIL) transport (HTL) substitute detrimental PEDOT:PSS...
Light-emitting diodes (LEDs) based on perovskites show great potential in lighting and display applications. However, although perovskite films with high photoluminescence quantum efficiencies are commonly achieved, the of LEDs largely limited by low light out-coupling efficiency. Here, we that high-efficiency a external efficiency 20.2% an ultrahigh radiant exitance up to 114.9 mW cm-2 can be achieved employing microcavity effect enhance extraction. The enhanced confirmed study...
We demonstrate a novel simplified close space sublimation (CSS) deposition for growing high quality CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>thin film in low-vacuum and even non-vacuum oven.
The aldehyde group has been developed for the first time as a traceless directing to promote regioselective Rh(III)-catalyzed C–H activation/cyclization of indolyl aldehydes with alkynes. This protocol streamlines access variety appealing indolo[1,2-a]quinoline structures. As illustrative examples, concise three-step synthesis indolo[1,2-a]quinoline-based sensitizers is accomplished that exhibits potential activation in construction organic optoelectronic materials.
For organic-inorganic perovskite solar cells (PerSCs), the electron transport layer (ETL) plays a crucial role in efficient extraction and for high performance PerSCs. Fullerene its derivatives are commonly used as ETL p-i-n structured However, these spherical small molecules easy to aggregate with annealing temperature thus induce morphology stability problems. N-type conjugated polymers promising candidates overcome problems due tunable energy levels, controllable aggregation behaviors,...