A5011057539- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Perovskite Materials and Applications
- Organic Light-Emitting Diodes Research
- Silicon and Solar Cell Technologies
- Quantum Dots Synthesis And Properties
- 2D Materials and Applications
- Molecular Junctions and Nanostructures
- Force Microscopy Techniques and Applications
- Nanowire Synthesis and Applications
- Neuroscience and Neural Engineering
- Luminescence and Fluorescent Materials
Guangxi University
2022-2025
Henan University
2020
Abstract The halogenated volatile solid additives can delicately optimize the active layer morphology of organic solar cells, improving devices' performance, stability, and reproducibility. However, what type intermolecular interaction occurs between whether truly impacts donor or acceptor remains debatable. Herein, focus is on with conjugated benzene rings their influence composed PM6:Y6 as they evaporated. absorbance spectra exhibit apparent red‐shift features in Y6 absorption regions,...
Polymorphism of nonfullerene acceptors enhances electron transport properties and potentially impacts the performance organic electronic devices.
The performance of organic solar cells has been dramatically enhanced due to the use bulk heterojunction active layer structure. However, blending donor and acceptor in volume results a large extent bimolecular charge recombination increasing energetic disorder. Herein, we fabricated with polymer PM6 nonfullerene N3 bilayer structure investigate impact planar configurations on landscapes. We find superior crystallinity features composed pure layers. disorder are effectively suppressed...
The sequential deposition method assists the vertical phase distribution in photoactive layer of organic solar cells, enhancing power conversion efficiencies. With this film coating approach, morphology both layers can be fine-tuned with high boiling solvent additives, as frequently applied one-step casting films. However, introducing liquid additives compromise morphological stability devices due to residuals. Herein, 1,3,5-tribromobenzene (TBB) volatility and low cost, is used a solid...
With the emergence of polymer acceptors with BTP cores and their derivatives, all-polymer solar cells (all-PSCs) have achieved remarkable progress in achieving power conversion efficiencies (PCE). However, compared the...
The cathode interlayer plays a vital role in organic solar cells, which can modify the work function of electrodes, lower electron extraction barriers, smooth surface active layer, and remove solvent residuals. However, development lags behind rapidly improved cells because their intrinsic high tension lead to poor contact with layers. Herein, double-dipole strategy is proposed enhance properties interlayers, induced by incorporating nitrogen- bromine-containing materials. To verify this...
When used in organic solar cells, poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) aligns interfacial energy levels, promotes hole extraction, blocks electrons, and optimizes the active layer's morphology. However, with an optimal thickness of approximately 30–40 nm, PEDOT:PSS has insufficient layer tolerance, owing to its low conductivity extraction property. Herein, a hole-selective-molecule doping strategy is proposed enhance properties by introducing MPA2FPh-BT-BA...
Abstract Trap-assisted charge recombination is one of the primary limitations restricting performance organic solar cells. However, effectively reducing presence traps in photoactive layer remains challenging. Herein, wide bandgap polymer donor PTzBI-dF demonstrated as an effective modulator for enhancing crystallinity bulk heterojunction active layers composed D18 derivatives blended with Y6, leading to dense and ordered molecular packings, thus, improves photoluminescence quenching...
All-polymer solar cells have attracted considerable research interest due to their superior morphological stabilities, stretchability, and mechanical durability. However, the morphology optimization of all-polymer bulk heterojunctions remains challenging two long conjugated polymer chains, limiting its power conversion efficiency. Herein, we focus on donor–acceptor phase segregation an active layer composed PM6/PY-IT, a state-of-the-art combination, by introduction volatile solid additives....
The aggregation of donor and acceptor is crucial for determining the phase separation in active layer, constraining performance organic optoelectronics. Herein, we focused on molecular aggregation...
The recent advancements in power conversion efficiency (PCE) of bilayer organic solar cells (b-OSCs) utilizing non-fullerene acceptors (NFAs) can be attributed to the synergistic effects long-range exciton diffusion and...
The order of molecular aggregation at the donor-acceptor interface strongly affects charge generation and extraction properties, determining performance organic electronic devices. Herein, we focused on bilayer organic...
Organic photodiodes composed of all-polymer active layers achieve a stable morphology, associated with superior electrical and thermal stabilities without sacrificing their performance.
The energy transfer and hole processes in thin films devices were probed using a tandem structure composed of donors/hole materials/acceptors.
Nonfullerene acceptors are critical in advancing the performance of organic solar cells. However, unfavorable morphology and low photon-to-electron conversion acceptor range continue to limit photocurrent generation overall device performance. Herein, benzoic anhydride, a low-cost polar molecule with excellent synergistic properties, is introduced combination traditional additive 1-chloronaphthalene optimize aggregation nonfullerene acceptors. This dual approach precisely modulates various...
Bilayer organic solar cells, composed of a donor and acceptor layer, provide independent optimization each layer to enhance the photovoltaic performance. However, power conversion efficiency remains lower than that bulk heterojunction cells. Herein, we focus on suppressing nongeminate charge recombination by tuning layer's morphology with fullerene derivatives improve performance bilayer We use PM6/Y6 as model systems incorporate fullerenes such PC71BM into aggregation, crystallinity,...
Broadening the spectral range and enhancing efficiency of light-harvesting materials are important to design novel optoelectronic devices. In this work, CsPbBr3 quantum dots (QDs) introduced as artificial antennas enhance both photoresponse zinc porphyrin (ZnP). The fluorescence resonance energy transfer (FRET) process in solution films from donor QD acceptor ZnP have been systematically investigated, an over 70% a high optical sensitivity realized with optimal QD/ZnP ratio on films. A...