A5069905179- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Perovskite Materials and Applications
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Crystal structures of chemical compounds
- Organic Light-Emitting Diodes Research
- Metal complexes synthesis and properties
- Synthesis and biological activity
- Magnetism in coordination complexes
- Crystallography and molecular interactions
- Quantum Dots Synthesis And Properties
- Synthesis and properties of polymers
- Chalcogenide Semiconductor Thin Films
- Synthesis of Organic Compounds
- Metal-Organic Frameworks: Synthesis and Applications
- Luminescence and Fluorescent Materials
- Thin-Film Transistor Technologies
- Semiconductor materials and interfaces
- Cell Adhesion Molecules Research
- Synthesis and Reactions of Organic Compounds
- Metal-Catalyzed Oxygenation Mechanisms
- Diamond and Carbon-based Materials Research
- Oxidative Organic Chemistry Reactions
- Photochromic and Fluorescence Chemistry
Lanzhou Jiaotong University
2016-2025
Lanzhou City University
2017-2020
Luoyang Institute of Science and Technology
2016
Ternary strategies are essential for the development of high-performance organic photovoltaic (OPV) devices. Similarly, green and environmentally friendly solvent processing in OPV devices is imperative commercial applications.
A ternary strategy could combine the advantages of incorporated materials as an encouraging approach to achieve high power conversion efficiency (PCE) polymer solar cells (PSCs).
To understand the vertical phase separation in bulk junction active layer of organic photovoltaic devices is essential for controlling charge transfer behavior and achieving effective collection. Here, diphenyl sulfide (DPS) was introduced as a novel additive into PTB7-Th:PC71BM-based inverted polymer solar cells (PSCs), effect additives on blend films characteristics carefully studied. The results show that DPS could not only modulate composition distribution but also promote ordered...
A diketopyrrolopyrrole-based small bandgap polymer (DPPT-TT) with high mobility is introduced as an additive to D–A1–D–A2 type thieno[3,4-<italic>b</italic>]thiophene-based random copolymer (P3):(6,6)-phenyl-C<sub>70</sub>-butyric acid methyl ester (PC<sub>71</sub>BM) solar cells (PSCs).
A ternary strategy of halogen-free solvent processing can open up a promising pathway for the preparation polymer solar cells (PSCs) on large scale and effectively improve power conversion efficiency with an appropriate third component. Herein, green o-xylene (o-XY) is used as main solvent, non-fullerene acceptor Y6-DT-4F component introduced into PBB-F:IT-4F binary system to broaden spectral absorption optimize morphology achieve efficient PSCs. The component, Y6-DT-4F, compatible IT-4F...
Traditional additives like 1,8-diiodooctane and 1-chloronaphthalene were successfully utilized morphology optimization of various polymer solar cells (PSCs) in an active layer, but their toxicity brought by halogen atoms limits corresponding large-scale manufacturing. Herein, a new nontoxic halogen-free additive named benzyl benzoate (BB) was introduced into the classic PSCs (PTB7-Th:PC71BM), optimal power conversion efficiency (PCE) 9.43% realized, while there poor PCE for free devices...
Abstract Controlled sequential crystallization of donors and acceptors is a critical factor for achieving enhanced phase separation efficient charge transfer performance in polymer solar cells (PSCs). In this study, comprehensive investigation structurally simple solvent additive, 1‐fluoro‐2‐iodobenzene (OFIB) conducted, which efficiently controls the morphology active layer, resulting fibrous assembly significantly enhancing power conversion efficiency from 16.34% to 18.38% based on...
AbstractAn unexpected mononuclear Ni(II) complex, [Ni(L2)2]·CH3OH (HL2 = 1-(2-{[(E)-3,5-dichloro-2-hydroxybenzylidene]amino}phenyl)ethanone oxime), has been synthesized via complexation of acetate tetrahydrate with HL1. HL1 and its corresponding complex were characterized by IR, 1H-NMR spectra, HRMS, as well elemental analysis, UV–vis, emission spectroscopy. The crystal structure the determined single-crystal X-ray diffraction. Each links two other molecules into an infinite 1-D chain...
Ternary copolymerization strategy is considered an effective method to achieve high-performance photovoltaic conjugated polymers. Herein, a donor–acceptor1–donor–acceptor2-type random copolymer, named PBDTNS-TZ-BDD (T1), containing one electron-rich unit alkylthionaphthyl-flanked benzo[1,2-b/4,5-b′] di-thiophene (BDTNS) as D and two electron-deficient moieties benzo[1,2-c/4,5-c′]dithiophene-4,8-dione (BDD) fluorinated benzotriazole A, was synthesized investigate the excitonic dynamic effect....
Organic solar cells (OSCs) are expected to attain a satisfactory power conversion efficiency (PCE) and acceptable production cost guarantee strong competitiveness. However, state-of-the-art PCEs all achieved by polymer donors with halogen atom-based active layers, which leaves room for researchers develop efficient systems without the currently widely used halogenated donors. Here, we combined recent well-known non-fullerene acceptor (NFA) Y6 our previously proposed donor PBDTNS-BDD...
Solvent additives play an important role in optimizing the morphology of photoactive layer and improving photovoltaic performance polymer solar cells (PSCs).
A new alcohol‐soluble polymer PFN‐ID is successfully synthesized by combining N , ‐di(2‐ethylhexyl)‐6,6′‐dibromoisoindigo and an amino‐containing fluorene subunits, applied to solar cells (PSCs) with PTB7‐Th:PC 71 BM as active layer. The n‐type backbone of the improves electron transfer performance thus optimizes device performance. PSCs cathode interfacial layers (CILs) have significantly improved compared without interface layer, especially optimum power conversion efficiency (PCE) reaches...
Using solvent additives to optimize the morphology of blend films in organic solar cells (OSCs) is a simple and effective method. Here, methyl salicylate (MeSA) used as non‐halogen additive for inverted OSCs, impact this on film photovoltaic performance carefully investigated. The significant increase short‐circuit current density ( J SC ) fill factor (FF) leads improvement device performance, which caused by bicontinuous interpenetrating phase separation balanced charge transport. results...
Abstract With rapid developments in the field of very large‐scale integrated circuits, heat dissipation has emerged as a significant factor that restricts high‐density integration chips. Due to their high thermal conductivity and low expansion coefficient, diamond/Cu composites have attracted considerable attention promising management material. In this study, surface tungsten carbide gradient layer coating diamond particles been realized using comprehensive magnetron sputtering technology...
Se-annulated PDI-SePDI device achieved a 56.64% elevated PCE of 5.31%, which was mainly due to enhanced exciton dissociation, suppressed charge recombination, and increased mobility benefiting from beneficial microstructural morphology.
A conjugated alcohol-soluble polymer based on perylene diimide (PDI) and fluorene (PPDI-FN) was designed synthesized. PPDI-FN can be soluble in methanol solution under the existence of tiny acetic acid, providing a possibility to prepare solar cells (PSCs) by low-cost non-interfacial mixed method. The conventional PSCs PTB7-Th:PC71BM were fabricated with as electron transport layer (ETL). Compare without ETL, introduction achieve an enormous enhancement performance: V oc (open circuit...