A5001367103- Perovskite Materials and Applications
- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Luminescence and Fluorescent Materials
- Organic Light-Emitting Diodes Research
- Quantum Dots Synthesis And Properties
- Nonlinear Optical Materials Studies
- Nanoplatforms for cancer theranostics
- Chalcogenide Semiconductor Thin Films
- Crystallization and Solubility Studies
- Advanced Fiber Laser Technologies
- X-ray Diffraction in Crystallography
- Luminescence Properties of Advanced Materials
- Molecular Sensors and Ion Detection
- Photonic Crystals and Applications
- stochastic dynamics and bifurcation
- 2D Materials and Applications
- Liquid Crystal Research Advancements
- Solid-state spectroscopy and crystallography
- Nonlinear Dynamics and Pattern Formation
- Photochromic and Fluorescence Chemistry
- Porphyrin and Phthalocyanine Chemistry
- Neural dynamics and brain function
- Gold and Silver Nanoparticles Synthesis and Applications
- Advanced Photocatalysis Techniques
South China Normal University
2002-2025
China University of Petroleum, East China
2024
Zhejiang Provincial People's Hospital
2024
Chinese People's Armed Police Force
2024
Henan Institute of Science and Technology
2017-2023
Henan Normal University
2023
First Affiliated Hospital of Zhengzhou University
2017-2022
Xinjiang Medical University
2022
Wenzhou Medical University
2022
First Affiliated Hospital of Wenzhou Medical University
2022
With the demonstration of small-area, single-junction polymer solar cells (PSCs) with power conversion efficiencies (PCEs) over 10% performance milestone, manufacturing high-performance large-area PSC modules is becoming most critical issue for commercial applications. However, materials and processes that are optimized fabricating small-area devices may not be applicable production modules. One challenges to develop new conductive interfacial can easily processed a wide range thicknesses...
Ternary organic solar cells (OSCs) have attracted much research attention in the past few years, as ternary blends can broaden absorption range of OSCs without use complicated tandem cell structures. Despite their broadened range, light harvesting capability is still limited because most thin active layers about 100 nm thickness, which not sufficient to absorb all photons spectral and may also cause problems for future roll-to-roll mass production that requires thick layers. In this paper,...
Purely organic electroluminescent materials, such as thermally activated delayed fluorescent (TADF) and triplet-triplet annihilation (TTA) basically harness triplet excitons from the lowest excited state (T1 ) to realize high efficiency. Here, a material that can convert into singlet high-lying (T2 ), referred here "hot exciton" path, is reported. The energy levels of this compound are determined sensitization nanosecond transient absorption spectroscopy measurements, i.e., small splitting...
By processing PTzBI:N2200 blends with green solvent 2-methyltetrahydrofuran, all-PSCs a power conversion efficiency over 9% can be achieved.
Few-layer black phosphorus (BP), as the most alluring graphene analogue owing to its similar structure and thickness dependent direct band-gap, has now triggered a new wave of research on two-dimensional (2D) materials based photonics optoelectronics. However, major obstacle practical applications for few-layer BPs comes from their instabilities laser-induced optical damage. Herein, we demonstrate that, BPs, which was fabricated through liquid exfoliation approach, can be developed saturable...
An amino‐functionalized copolymer with a conjugated backbone composed of fluorene, naphthalene diimide, and thiophene spacers (PFN‐2TNDI) is introduced as an alternative electron transport layer (ETL) to replace the commonly used [6,6]‐Phenyl‐C61‐butyric acid methyl ester (PCBM) in p–i–n planar‐heterojunction organometal trihalide perovskite solar cells. A combination characterizations including photoluminescence (PL), time‐resolved PL decay, Kelvin probe measurement, impedance spectroscopy...
Adding 2-phenoxyethylamine (POEA) into a CH3 NH3 PbBr3 precursor solution can modulate the organic-inorganic hybrid perovskite structure from bulk to layered, with photoluminescence and electroluminescence shift green blue. Meanwhile, POEA passivate surface help obtain pure phase, leading an improvement of external quantum efficiency nearly 3% in LED.
Highly efficient electron extraction is achieved by using a photoconductive cathode interlayer in inverted ternary organic solar cells (OSCs) where near-IR absorbing porphyrin molecule used as the sensitizer. The OSCs show improved device performance when ratio of two donors varies large region and maximum power conversion efficiency up to 11.03% demonstrated.
A novel naphtho[1,2-c:5,6-c′]bis([1,2,5]thiadiazole)-based narrow-bandgap π-conjugated polymer is designed for application in solar cells. Remarkable power conversion efficiencies over 10% can be achieved based on both conventional and inverted device architectures with thick photoactive layers, which are processed by using chlorinated or nonhalogenated solvents, suggesting its great promise toward practical applications high-throughput roll-to-roll processing. As a service to our authors...
In this work, both anode and cathode interfaces of p‐i‐n CH 3 NH PbI perovskite solar cells (PVSCs) are simultaneously modified to achieve large open‐circuit voltage (V oc ) fill factor (FF) for high performance semitransparent PVSCs (ST‐PVSCs). At the anode, NiO serves as an efficient hole transport layer with appropriate surface property promote formation smooth film coverage. cathode, a fullerene bisadduct, C 60 (CH 2 )(Ind), shallow lowest unoccupied molecular orbital level, is...
Graphene oxide (GO) thin films on glass and plastic substrates were found to display interesting broadband nonlinear optical properties. We have investigated their limiting activity for femtosecond laser pulses at 800 400 nm, which could be tuned by controlling the extent of reduction. The as-prepared GO exhibit excellent behaviors, significantly enhanced upon partial reduction using irradiation or chemical methods. laser-induced resulted in enhancement effective two-photon absorption...
Abstract Due to their relatively high compatibility with specific photonic structures, strong light-matter interactions and unique nonlinear optical response, two-dimensional (2D) materials, such as graphene transition metal dichalcogenides, are attractive for ultrafast photonics applications. Here, we fabricate MoS 2 /graphene nanocomposites by a typical hydrothermal method. In addition, systematically investigate responses. Our experiments indicate that the combined advantages of...
Photocyclized intermediate formation and quasi CC twisting are the dominant processes behind AIE.
Abstract Inhibition of TICT can significantly increase the brightness fluorescent materials. Accurate prediction is thus critical for quantitative design high‐performance fluorophores and AIEgens. 14 types popular organic were modeled with time‐dependent density functional theory (TD‐DFT). A reliable generalizable computational approach modeling formations was established. To demonstrate power our approach, we quantitatively designed a boron dipyrromethene (BODIPY)‐based AIEgen which...
Two chemically tailored new conjugated copolymers, HSL1 and HSL2, were developed applied as hole selective layers to improve the anode interface of fullerene/perovskite planar heterojunction solar cells. The introduction polar functional groups on polymer side chains increases surface energy (HSLs), which promote better wetting with perovskite films lead full coverage high crystallinity. deep highest occupied molecular orbital levels HSLs align well valence band semiconductors, resulted in...
Size-dependent third order nonlinearity as well ultrafast carrier dynamics of BPs is studied, and used in a fiber laser.
High-performance nonfullerene polymer solar cells (PSCs) are developed by integrating the electron-accepting material 3,9-bis(2-methylene-(3-(1,1-dicyanomethylene)-indanone))-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d:2',3'-d']-s-indaceno[1,2-b:5,6-b']dithiophne) (ITIC) with a wide-bandgap electron-donating PTzBI or PTzBI-DT, which consists of an imide functionalized benzotriazole (TzBI) building block. Detailed investigations reveal that extension conjugation can affect optical and...
Abstract Two novel narrow bandgap π‐conjugated polymers based on naphtho[1,2‐ c :5,6‐ ′]bis([1,2,5]thiadiazole) (NT) unit are developed, which contain the thiophene or benzodithiophene flanked with alkylthiophene as electron‐donating segment. Both copolymers exhibit strong aggregations both in solution and thin films. The resulting higher molecular weight show photovoltaic performance by virtue of enhanced short‐circuit current densities fill factors, can be attributed to their absorptivity...
Novel sandwich-shelled ZnCdS/ZnO/ZnCdS dodecahedral cages are synthesized with “one stone”, exhibiting advanced performance towards photocatalytic hydrogen production.
Abstract The field of organic–inorganic hybrid perovskite light‐emitting diodes (PeLEDs) has developed rapidly in recent years. Although the performance PeLEDs continues to improve through film quality control and device optimization, little research been dedicated understanding recombination dynamics thin films. Likewise, done investigate effects on overall behavior PeLEDs. Therefore, this study investigates CH 3 NH PbI films with differing crystal sizes by measurement fluence‐dependent...
Efficient ternary polymer solar cells are constructed by incorporating an electron‐deficient chromophore (5 Z ,5′ )‐5,5′‐((7,7′‐(4,4,9,9‐tetrakis(4‐hexylphenyl)‐4,9‐dihydro‐ s ‐indaceno[1,2‐ b :5,6‐ ′]dithiophene‐2,7‐diyl) bis (6‐fluorobenzo[ c ][1,2,5]thiadiazole‐7,4‐diyl)) (methanylylidene)) (3‐ethyl‐2‐thioxothiazolidin‐4‐one) (IFBR) as additional component into the bulk‐heterojunction film that consists of a wide‐bandgap conjugated benzodithiophene‐ alt ‐difluorobenzo[1,2,3]triazole based...
Abstract Actualizing highly efficient solution‐processed thermally activated delayed fluorescent (TADF) organic light‐emitting diodes (OLEDs) at high brightness becomes significant to the popularization of purely electroluminescence. Herein, a soluble emitter benzene‐1,3,5‐triyltris((4‐(9,9‐dimethylacridin‐10(9 H )‐yl)phenyl)methanone was developed, yielding fluorescence rate ( k TADF > 10 5 s −1 ) ascribed multitransition channels and tiny singlet–triplet splitting energy (Δ E ST ≈ 32.7...
An easy and efficient approach to achieve a large-area cathode interlayer with controlled film composition, uniformity, thickness under nanometer scale is reported by using an electrostatic layer-by-layer (eLbL) self-assembly process. The eLbL films provide new means for preparing interlayers polymer solar cells (PSCs) also represent potential candidate use in high-performance PSC modules the future.