A5049919506- Conducting polymers and applications
- Organic Electronics and Photovoltaics
- Semiconductor Lasers and Optical Devices
- Photonic and Optical Devices
- Perovskite Materials and Applications
- Supercapacitor Materials and Fabrication
- Advanced battery technologies research
- Advanced Mathematical Physics Problems
- Advanced Fiber Laser Technologies
- Thin-Film Transistor Technologies
- Navier-Stokes equation solutions
- Lanthanide and Transition Metal Complexes
- Solid State Laser Technologies
- Photorefractive and Nonlinear Optics
- Plasma Applications and Diagnostics
- Silicon and Solar Cell Technologies
- Computational Fluid Dynamics and Aerodynamics
- Semiconductor materials and interfaces
- Nonlinear Waves and Solitons
- Electrohydrodynamics and Fluid Dynamics
- Nonlinear Photonic Systems
- Electrochemical sensors and biosensors
- Molecular Junctions and Nanostructures
- Advancements in Battery Materials
- Mathematical and Theoretical Epidemiology and Ecology Models
Max-Planck-Institut für Nachhaltige Materialien
2024
Zhoukou Normal University
2018-2024
Southeast University
2020-2023
Qingdao University of Science and Technology
2023
Henan University
2022
Zhongyuan University of Technology
2015-2022
Yangzhou University
2017-2022
University of Chinese Academy of Sciences
2016-2021
Zhengzhou University of Light Industry
2019-2021
Chinese Academy of Sciences
2013-2021
A novel A2-A1-D-A1-A2-type nonfullerene acceptor, using thiazolidine-2,4-dione (TD) as the terminal acceptor (A2) for first time, was designed and synthesized. The final molecule, BTA2, shows a high-lying lowest unoccupied molecular orbital (LUMO) of -3.38 eV wide optical band gap 2.00 eV. Fullerene-free organic solar cells based on P3HT:BTA2 realized high open-circuit voltage (Voc) 1.22 V with power conversion efficiency (PCE) 4.50%. These values are significantly higher than those...
Rylene dimides are widely used as the building blocks for n-type semiconducting polymers due to tunable electronic properties. To elucidate their potentials electron acceptors in all-polymer solar cells, systematic comparisons of properties among derivatives necessary. Herein, we perylene diimide (PDI), naphthalene (NDI), and naphthodithiophene (NDTI) with same alkyl chains combined dithienothiophene (DTT) unit obtain three polymer PPDI-DTT, PNDI-DTT, PNDTI-DTT, respectively. Light...
Linear A–D–A or A−π–D−π–A architectures are predominant in the design of promising nonfullerene acceptors (NFAs), which promoted rapid progress organic solar cells. However, utilization four electron-accepting units (A) to construct four-armed NFAs is rarely reported and relationship structure–properties–performance unclear. In this study, we designed synthesized a novel acceptor (A401) with an (AA)−π–D−π–(AA) configuration, where 1,1-dicyanomethylene-3-indanone groups were used as...
Three quinoxaline-based "D-π-A" conjugated polymers, named as PE61, PE62, and PE63, are utilized to investigate the effect of introducing fluorine sulfur atoms into thiophene side chains on photovoltaic performance when paired with a nonfullerene Y6. The open-circuit voltage (VOC) power conversion efficiency (PCE) can be improved from 0.66 V 8.61% for PE61:Y6 0.78 12.02% PE62:Y6, then 0.83 13.10% PE63:Y6, respectively. results provide simple effective strategy fine-tune optoelectronic...
Two polymeric electron acceptors (PFPDI-2T and PFPDI-2FT) based on the fused perylene diimide (PDI) bithiophene or difluorobithiophene units were synthesized via Stille polymerization. Both polymers exhibit strong absorption between 350 650 nm, which have good compensation with low band gap conjugated polymer in solar cells (PSCs). PFPDI-2T PFPDI-2FT LUMO energy levels of around −4.12 to −4.15 eV, are comparable other PDI-based fullerene derivatives. All-polymer (all-PSCs) as acceptor...
Two novel acceptor–acceptor (A–A) type polymeric electron acceptors, PPDI-DTBT and PFPDI-DTBT, which contain perylene diimide (PDI) fused PDI (FPDI) with deficient 4,7-dithienyl-2,1,3-benzothiadiazole (DTBT) units, respectively, are designed synthesized to investigate their application in all-polymer solar cells (all-PSCs).
We used the quinoxaline (Qx) unit to design and synthesize two nonfullerene small-molecule acceptors of Qx1 Qx1b with an A2-A1-D-A1-A2 skeleton, where indacenodithiophene (IDT), Qx, rhodanine (R) were adopted as central donor (D), bridge (A1), terminal (A2), respectively. contain different side chains 4-hexylphenyl octyl in IDT segment modulate properties final small molecules. Both molecules show good thermal stability, high solubility, strong broad absorption spectra optical band gaps 1.74...
We report three n-type polymeric electron acceptors (PFPDI-TT, PFPDI-T, and PFPDI-Se) based on the fused perylene diimide (FPDI) thieno[3,2-b]thiophene, thiophene, or selenophene units for all-polymer solar cells (all-PSCs). These FPDI-based polymer exhibit strong absorption between 350 650 nm with wide optical bandgap of 1.86–1.91 eV, showing good compensation narrow donor. The lowest unoccupied molecular orbital (LUMO) energy levels were located at around −4.11 which are comparable those...
Bulk heterojunction organic solar cells based on perylenediimide (PDI) derivatives as electron acceptors have afforded high power conversion efficiency (PCE) but still lagged behind fullerene-based analogues. Design of novel molecular structures by adjusting the PDI ring and/or connection mode remains breakthrough point to improve photovoltaic performance. After introducing benzofuran at inside bay positions and being linked with a single bond fluorene unit, mandatory planar dimers were...
Channel waveguides based on a polymer, 6-fluorinated-dianhydride/epoxy, which is actively doped with Nd complex, Nd(thenoyltrifluoroacetone)(3) 1,10-phenanthroline, are fabricated by simple and reproducible procedure, spin coating photodefinable cladding polymer onto thermally oxidized silicon wafer, photopatterning, backfilling the active core an upper layer. Photoluminescence at 1060 nm from Nd(3+) ions lifetime of 130 mus observed. Optical gain demonstrated in channel different...
Nd <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3+</sup> -complex-doped polymer channel waveguide amplifiers with various lengths and concentrations are fabricated by a simple procedure. Internal net gain at 840-950 nm 1064 is experimentally theoretically investigated under continuous-wave excitation 800 nm. in the range 865-930 observed peak of 2.8 dB 873 obtained 1.9-cm-long concentration 0.6 × 10...
A-DA′D-A-type non-fullerene acceptors (NFAs) based on a fused heptacyclic DA′D ring have shown outstanding performance upon blending with variety of polymer donors in solar cells recently. However, the application these NFAs pairing cheapest photovoltaic poly(3-hexylthiophene) (P3HT) was less reported. Here, we use two reported NFAs, Y6 and Y5, together new synthesized molecule TPBT-RCN to extend kinds materials. The device P3HT:TPBT-RCN exhibits an improved power conversion efficiency (PCE)...
The "Same-A-Strategy" (SAS) employing the same acceptor unit (A) to construct both donor and materials was effective achieve high open-circuit voltage (VOC) but only confined benzotriazole (BTA) unit. In this work, we chose quinoxaline (Qx) instead of BTA as A photovoltaic extended application SAS. By introducing fluorine atom thiophene side chains p-type polymer Qx units n-type small molecule, optoelectronic properties can be effectively fine-tuned. device based on PE61:Qx3b achieved a...