A5100368754- Conducting polymers and applications
- Perovskite Materials and Applications
- Organic Electronics and Photovoltaics
- Advanced Photocatalysis Techniques
- Quantum Dots Synthesis And Properties
- Gas Sensing Nanomaterials and Sensors
- Organic Light-Emitting Diodes Research
- Chalcogenide Semiconductor Thin Films
- Advanced Nanomaterials in Catalysis
- Thin-Film Transistor Technologies
- ZnO doping and properties
- TiO2 Photocatalysis and Solar Cells
- Molecular Junctions and Nanostructures
- Electrochemical sensors and biosensors
- Electrochemical Analysis and Applications
- Advancements in Battery Materials
- Covalent Organic Framework Applications
- Advanced Chemical Sensor Technologies
- Ga2O3 and related materials
- Terahertz technology and applications
- Solid-state spectroscopy and crystallography
- Advanced Battery Materials and Technologies
- 2D Materials and Applications
- Semiconductor materials and interfaces
- Advanced Memory and Neural Computing
Beihang University
2016-2025
Beijing Advanced Sciences and Innovation Center
2018-2025
Hebei University of Technology
2021-2025
Minzu University of China
2021-2025
Inner Mongolia Agricultural University
2025
Jilin University
2017-2025
State Key Laboratory of Inorganic Synthesis and Preparative Chemistry
2017-2025
Henan University of Technology
2007-2025
Intelligent Systems Research (United States)
2025
China Medical University
2022-2025
A significant enhancement of efficiency in thieno[3,4-b]-thiophene/benzodithiophene:[6,6]-phenyl C71-butyric acid methyl ester (PTB7:PC70BM) solar cells can be achieved by methanol treatment. The effects treatment are shown an improvement built-in voltage, a decrease series resistance, enhanced charge-transport property, accelerated and enlarged charge extraction, reduced recombination, which induce simultaneous open-circuit voltage (Voc), short-circuit current (Jsc), fill factor (FF) the...
Rational materials design and interface engineering are both essential to realize a high performance for tandem cells. Two identical bulk heterojunctions connected in series using novel interconnection layers combining pH-neutral conjugated polyelectrolytes thin film of ZnO nanoparticles by solution process. The best performing cells achieve power conversion efficiency 11.3%, with 25% enhancement compared single cells, which arises primarily from the increased light absorption. As service...
Abstract With rapid development for tens of years, organic solar cells (OSCs) have attracted much attention their potential in practical applications. As an important photovoltaic parameter, the fill factor (FF) OSCs stands effectiveness charge generation and collection, which significantly depends on properties interlayer active layer. Here, a facile effective strategy to improve FF through hole‐transporting layer (HTL) modification is demonstrated. By mixing WO x nanoparticles with...
Brush-like hierarchical ZnO nanostructures assembled from initial 1D were prepared sequential nucleation and growth following a hydrothermal process. The morphology, structure, optical property of characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), photoluminescence (PL) studies. FE-SEM images showed that the brush-like are composed 6-fold nanorod-arrays grown on side surface core nanowires. Compared with nanowires, easily fabricated satisfactory...
Photoredox catalysis: A variety of organic transformations mediated by visible-light-active photoredox catalysts have been conducted in a photochemical flow reactor. The reactor design is very simple and can be easily implemented any laboratory (see picture). In addition, this afforded marked increase the reaction rate compared to those observed typical batch (round bottom flask) reactors.
A ternary structure has been demonstrated as being an effective strategy to realize high power conversion efficiency (PCE) in organic solar cells (OSCs); however, general materials selection rules still remain incompletely understood. In this work, two nonfullerene small-molecule acceptors 3TP3T-4F and 3TP3T-IC are synthesized incorporated a third component PM6:Y6 binary blends. The photovoltaic behaviors the resultant OSCs differ significantly, despite comparable energy levels. It is found...
The regioregular narrow band gap (E(g) ~1.5 eV) conjugated polymer PIPCP was designed and synthesized. contains a backbone comprised of CPDT-PT-IDT-PT repeat units (CPDT = cyclopentadithiophene, PT pyridyl[2,1,3]thiadiazole, IDT indacenodithiophene) strictly organized orientations, such that the pyridyl N-atoms point toward CPDT fragment. Comparison with regiorandom counterpart PIPC-RA illustrates higher level molecular order translates to power conversion efficiencies (PCEs) when...
Traps in the photoactive layer or interface can critically influence photovoltaic device characteristics and stabilities. Here, traps passivation retardation on degradation for methylammonium lead trihalide (MAPbI3 ) perovskite solar cells enabled by a biopolymer heparin sodium (HS) interfacial is investigated. The incorporated HS boosts power conversion efficiency from 17.2 to 20.1% with suppressed hysteresis Shockley-Read-Hall recombination, which originates primarily of near between...
Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) has been extensively used as the hole-transporting layer (HTL) in bulk heterojunction (BHJ) solar cells, however, its anisotropic electrical conduction and intrinsic acidic nature generally limit device performance. Here we demonstrate application of a water/alcohol soluble CPE (CPE-K) HTLs BHJ achieving PCE up to 8.2%. The more superior uniform vertical conductivity found CPE-K reduces series resistance provides efficient...
This article presents a transformer and convolutional neural network (CNN) hybrid deep for semantic segmentation of very high resolution (VHR) remote sensing imagery. The model follows an encoder–decoder structure. encoder module uses new universal backbone Swin to extract features achieve better long-range spatial dependencies modeling. decoder draws on some effective blocks successful strategies CNN-based models in image segmentation. In the middle framework, atrous pyramid pooling block...
Layered Ruddlesden-Popper (RP) phase (2D) halide perovskites have attracted tremendous attention due to the wide tunability on their optoelectronic properties and excellent robustness in photovoltaic devices. However, charge extraction/transport ultimate power conversion efficiency (PCE) 2D perovskite solar cells (PSCs) are still limited by non-eliminable quantum well effect. Here, a slow post-annealing (SPA) process is proposed for BA2 MA3 Pb4 I13 (n = 4) PSCs which champion PCE of 17.26%...
Abstract Fused‐ring electron acceptors (FREAs) have recently received intensive attention. Besides the continuing development of new FREAs, demand for FREAs featuring good compatibility to donor materials is becoming more and urgent, which highly desirable screening achieving breakthroughs. In this work, a FREA developed, ZITI , an octacyclic dithienocyclopentaindenoindene central core. The core designed by linking 2,7‐dithienyl substituents indenoindene with small methylene groups, in...
Abstract The stability of organic solar cells is a key issue to promote practical applications. Herein, we demonstrate that the device performance enhanced by an Ir/IrO x electron-transporting layer, benefiting from its suitable work function and heterogeneous distribution surface energy in nanoscale. Notably, champion -based devices exhibit superior stabilities under shelf storing ( T 80 = 56696 h), thermal aging 70 13920 maximum power point tracking 1058 compared ZnO-based devices. It can...
Quasi-two-dimensional (2D) perovskites are highly promising light-harvesting materials for commercialization of perovskite solar cells (PSCs) owing to the excellent stability. However, coexistence multiple n-value species in 2D often causes increased complexities crystallization that can negatively affect eventual photovoltaic performance. Herein, we present a binary solution based strategy via introducing nontoxic and widely accessible CH3COOH (HAc) as co-solvent preparing high-quality...
In this work, we present a conceptual strategy based on multi-acceptor components to realize balanced crystallization kinetics in organic solar cells (OSC) that deliver 19.35% power conversion efficiency with superior photostability.
Addition of low concentrations (<1:100, dopant:donor) a fluorinated p-type dopant, F4-TCNQ leads to considerable enhancement the photocurrent in PCDTBT:PC70BM bulk heterojunction solar cells. As result, power conversion efficiency increases from 6.41% 7.94 %.
Here, we demonstrate that niobium pentoxide (Nb(2)O(5)) is an ideal candidate for increasing the efficiencies of dye-sensitized solar cells (DSSCs). The key lies in developing a Nb(2)O(5) crisscross nanoporous network, using our unique elevated temperature anodization process. For same thicknesses ∼4 μm, DSSC based on layer has significantly higher efficiency (∼4.1%) when compared to which incorporates titanium dioxide nanotubular (∼2.7%). This highest among all reported photoanodes such...
We report on the design, synthesis and characterization of light harvesting small molecules for use in solution-processed molecule bulk heterojunction (SM-BHJ) solar cell devices. These molecular materials are based upon an acceptor/donor/acceptor (A/D/A) core with donor endcapping units. Utilization a dithieno(3,2-b;2′,3′-d)silole (DTS) pyridal[2,1,3]thiadiazole (PT) acceptor leads to strong charge transfer characteristics, resulting broad optical absorption spectra extending well beyond...