A5047139426- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Perovskite Materials and Applications
- Thin-Film Transistor Technologies
- Molecular Junctions and Nanostructures
- Nanowire Synthesis and Applications
- Advanced Sensor and Energy Harvesting Materials
- Quinazolinone synthesis and applications
- Advanced Materials and Mechanics
- solar cell performance optimization
- Fullerene Chemistry and Applications
- Chalcogenide Semiconductor Thin Films
- Organic Light-Emitting Diodes Research
- Metamaterials and Metasurfaces Applications
- Quantum Dots Synthesis And Properties
- Ginseng Biological Effects and Applications
- Photonic and Optical Devices
- Liquid Crystal Research Advancements
- Silicon and Solar Cell Technologies
- Toxic Organic Pollutants Impact
- Fungal Plant Pathogen Control
- Advanced Antenna and Metasurface Technologies
- Semiconductor materials and interfaces
- Plasmonic and Surface Plasmon Research
- Synthesis and Biological Evaluation
Sichuan University
2021-2025
Ingenierie des Materiaux polymeres
2025
Shanghai University
2023-2024
Second Affiliated Hospital of Zhengzhou University
2016-2023
Peking University
2014-2022
Technion – Israel Institute of Technology
2022
Guangdong Pharmaceutical University
2019-2022
University of California, Los Angeles
2018-2021
California NanoSystems Institute
2018-2021
University of California System
2019
Abstract Despite significant development recently, improving the power conversion efficiency of organic photovoltaics (OPVs) is still an ongoing challenge to overcome. One prerequisites achieving this goal enable efficient charge separation and small voltage losses at same time. In work, a facile synthetic strategy reported, where optoelectronic properties are delicately tuned by introduction electron-deficient-core-based fused structure into non-fullerene acceptors. Both devices exhibited...
Polymer solar cells (PSCs) based on blended films of a novel planar acceptor and P3HT gave power conversion efficiencies up to 5.12%, which are much higher than that PC<sub>61</sub>BM-based control devices (3.71%) the highest values reported for P3HT-based fullerene-free PSCs.
A novel 3D star-shaped acceptor based on triphenylamine as a core and diketopyrrolopyrrole arms (S(TPA–DPP)) was synthesized. S(TPA–DPP) exhibited excellent thermal stability, strong absorption, very high open-circuit voltage (1.18 V) in solution-processed organic solar cells P3HT : S(TPA–DPP).
Indene-C60 bisadduct (ICBA) is used as an electron-cascade acceptor material in poly{4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b:4,5-b′]dithiophene-2,6-diyl-alt-3-fluoro-2-[(2-ethylhexyl)carbonyl]thieno[3,4-b]thiophene-4,6-diyl} (PTB7):[6,6]-phenyl-C71-butyric-acid-methyl-ester (PC71BM) blend to fabricate ternary polymer solar cells (PSCs). Due higher lowest unoccupied molecular orbital (LUMO) energy levels of ICBA relative PC71BM, the open circuit voltage (VOC) increases with addition ICBA. plays...
A new, easy, and efficient approach is reported to enhance the driving force for charge transfer, break tradeoff between open-circuit voltage short-circuit current, simultaneously achieve very small energy loss (0.55 eV), high (>1 V), efficiency (>10%) in fullerene-free organic solar cells via an driver.
Binary additives synergistically boost the power conversion efficiency of all-polymer solar cells up to 3.45%. The nonvolatile additive PDI-2DTT suppresses aggregation acceptor PPDIDTT and enhances donor/acceptor mixing, while DIO facilitates crystallization donor PBDTTT-C-T as well improves phase separation. Combination leads suitable separation improved balanced charge transport, which is beneficial enhancement.
ConspectusOrganic photovoltaics (OPVs) have attracted considerable attention in the last two decades to overcome terawatt energy challenge and serious environmental problems. During their early development, only wide-band-gap organic semiconductors were synthesized employed as active layer, mainly utilizing photons UV-visible region yielding power conversion efficiencies (PCEs) lower than 5%. Afterward, efforts made narrow polymer donor band gap order utilize infrared photons, which led...
The alloy acceptor (indene-C60 bis-adduct (ICBA)/[6,6]-phenyl-C71 -butyric acid-methyl-ester (PC71 BM)) is employed to replace the widely used fullerene BM) in organic solar cells based on five different polymer donors, which exhibit a higher efficiency and much better device stability than PC71 BM counterpart.
The performance of organic photovoltaics (OPVs) has rapidly improved over the past years. Recent work in material design primarily focused on developing near-infrared nonfullerene acceptors with broadening absorption that pair commercialized donor polymers; meanwhile, influence morphology blend film and energy level alignment efficiency charge separation needs to be synthetically considered. Herein, selection rule donor/acceptor is demonstrated by rationally considering molecular interaction...
Defect passivation constitutes one of the most commonly used strategies to fabricate highly efficient perovskite solar cells (PSCs). However, durability effects under harsh operational conditions has not been extensively studied regardless weak and vulnerable secondary bonding between molecular agents crystals. Here, we incorporated strategically designed passivating investigate effect their interaction energies on crystals correlated these with performance longevity effects. We unraveled...
Because the visible and infrared (IR) regions take up ∼47% ∼51% of energy in solar spectrum (AM 1.5G standard), respectively, utilizing light for plant growth IR power generation is potentially extremely exciting. IR-absorbing organic semiconductors, with localized absorption visible-light transmittance, would be promising materials this purpose. Here, flexible transparent photovoltaics (TOPVs) based on were proposed, which can a simple, low-cost, way to utilize electricity generation,...
ConspectusPerylene diimide (PDI) as a classical dye has some advantages, such structural diversity, tunable optical and electronic properties, strong light absorption, high electron affinity, good electron-transporting properties stability. The PDI-based oligomers polymers are candidates for n-type semiconductors in organic electronics photonic devices.A polymer solar cell (PSC) that converts sunlight into electricity is promising renewable clean energy technology superiorities, simple...
Abstract Mechanical stability of organic photovoltaics (OPVs) is required not just for portable applications, which must accommodate strain as a function operation, but also manufacturing, transportation, and utility‐scale applications. However, the mechanical reliability OPVs often disregarded compared with other stress (thermal, oxygen, moisture, irradiation). The key to improving lies in realizing mechanically robust active layers. This perspective first analyzes working scenarios...
Abstract Using two structurally similar polymer acceptors in constructing high‐efficiency ternary all‐polymer solar cells is a widely acknowledged strategy; however, the focus thus far has not been on how acceptor(s) would tune aggregation of donors, and furthermore film morphology device performance (efficiency stability). Herein, it reported that matching celebrity acceptor PY‐IT donor PBQx‐TCl results enhanced H ‐ PBQx‐TCl, which can be finely tuned by controlling amount second PY‐IV....
Abstract Although the advances in organic solar cells (OSCs) have been considerable, their efficiency is still limited by recombination losses. Photogenerated electrons and holes are generally bound as localized excitons semiconductors. The transition from into free charges requires diffusion dissociation processes, which parasitic losses exist. Reducing these necessary for highly efficient OSCs. crystallization behavior of active layers can influence exciton dissociation. In this work,...
Abstract All-small-molecule organic solar cells with good batch-to-batch reproducibility combined non-halogen solvent processing show great potential for commercialization. However, of all-small-molecule are rarely reported and its power conversion efficiencies very difficult to improve. Herein, we designed synthesized a small molecule donor BM-ClEH that can take advantage strong aggregation property induced by intramolecular chlorine-sulfur non-covalent interaction improve molecular...
Abstract Large‐area printing fabrication is a distinctive feature of organic solar cells (OSCs). However, the advance upscalable challenged by thickness active layers considering importance both exciton dissociation and charge collection. In this work, bulk‐heterojunction‐buried (buried‐BHJ) structure introduced sequential deposition to realize efficient collection, thereby contributing OSCs with 500 nm thick layers. The buried‐BHJ distributes donor acceptor phases in vertical direction as...
This review highlights the recent progress on fabrication of organic solar cells with various third components which can improve power conversion efficiency and stability.
A novel small molecule based on indacenodithiophene and 1,1-dicyanomethylene-3-indanone was synthesized used as an electron acceptor in solution processed organic solar cells, which exhibited a power conversion efficiency high 3.93%.