A5045437961- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Perovskite Materials and Applications
- Organic Light-Emitting Diodes Research
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Thin-Film Transistor Technologies
- Fullerene Chemistry and Applications
- Molecular Junctions and Nanostructures
- Nanowire Synthesis and Applications
- Semiconductor materials and interfaces
- Luminescence and Fluorescent Materials
- Wound Healing and Treatments
- Microbial Metabolism and Applications
- Advanced battery technologies research
- Planarian Biology and Electrostimulation
- solar cell performance optimization
- Electrospun Nanofibers in Biomedical Applications
- Heart Failure Treatment and Management
- Central Venous Catheters and Hemodialysis
- Trace Elements in Health
- TiO2 Photocatalysis and Solar Cells
- Collagen: Extraction and Characterization
- Dialysis and Renal Disease Management
- Burn Injury Management and Outcomes
Shenzhen University
2018-2025
Ganzhou People's Hospital
2024
Hong Kong University of Science and Technology
2019-2022
University of Hong Kong
2019-2022
University of Science and Technology Beijing
2022
Sichuan University
2019-2022
Wuhan University
2016-2021
HKUST Shenzhen Research Institute
2019-2021
Kowloon Hospital
2020
Army Medical University
2018-2020
Recent advances in the development of polymerized A-D-A-type small-molecule acceptors (SMAs) have promoted power conversion efficiency (PCE) all-polymer solar cells (all-PSCs) over 13%. However, monomer an SMA typically consists a mixture three isomers due to regio-isomeric brominated end groups (IC-Br(in) and IC-Br(out)). In this work, two isomeric are successfully separated, regioisomeric issue is solved, polymer acceptors, named PY-IT, PY-OT, PY-IOT, developed, where PY-IOT random...
Ternary OSCs fabricated with two acceptors similar absorption spectra achieved the best PCE of 14.13% an impressive FF 78.2%.
A novel small molecule acceptor MeIC with a methylated end-capping group is developed. Compared to unmethylated counterparts (ITCPTC), exhibits higher lowest unoccupied molecular orbital (LUMO) level value, tighter packing, better crystallites quality, and stronger absorption in the range of 520-740 nm. The MeIC-based polymer solar cells (PSCs) J71 as donor, achieve high power conversion efficiency (PCE), up 12.54% short-circuit current (JSC ) 18.41 mA cm-2 , significantly than that device...
In this work, an effectual strategy of constructing polar small molecule acceptors (SMAs) to promote fill factor (FF) nonfullerene polymer solar cells (PSCs) is first reported. Three asymmetrical SMAs IDT6CN, IDT6CN-Th, and IDT6CN-M, which own large dipole moments, are designed synthesized. The PSCs based on three exhibit apparently higher FFs compared with their symmetrical analogues. design accompanied side chain end group engineering makes IDT6CN-Th- IDT6CN-M-based achieve high power...
Abstract The thermal stability of organic solar cells is critical for practical applications this emerging technology. Thus, effective approaches and strategies need to be found alleviate their inherent instability. Here, we show a polymer acceptor-doping general strategy report thermally stable bulk heterojunction photovoltaic system, which exhibits an improved power conversion efficiency 15.10%. Supported by statistical analyses device degradation data, morphological characteristics...
A universal layer-by-layer solution-processing approach is proven to be effective for the fabrication of high-performance non-fullerene organic solar cells.
The PM7:ITC-2Cl:IXIC-4Cl-based ternary device achieved an excellent PCE of 15.37% with a energy loss 0.42 eV.
It is widely known that the miscibility between donor and acceptor a crucial factor affects morphology thus device performance of nonfullerene organic solar cells (OSCs). In this Letter, we show incorporating third component with lower higher lowest unoccupied molecular orbital (LUMO) level into state-of-the-art PM6:Y6 system can significantly enhance devices. The best results ternary devices are achieved by adding small named ITCPTC (∼5% w/w), which improves power conversion efficiency...
In this article, we designed and synthesized a novel small molecule acceptor of ITCPTC with thiophene-fused ending group by employing new active methylene precursor CPTCN. The ITCPTC-based polymer solar cells PBT1-EH as donor achieved very high power conversion efficiencies (PCEs) up to 11.8% remarkably enhanced fill factor (FF) 0.751, near 20% boost in PCE respect the ITIC-based control device. These values are among highest PCEs FFs for (PSCs). whole study, made contrasts ITIC understand...
Regulating side-chain orientations of Y-series NFAs is a promising strategy to achieve favorable morphology, and high charge mobility solar cell performances, which enables high-performance devices with efficiency approaching 18%.
Abstract Small‐molecule acceptors (SMAs)‐based organic solar cells (OSCs) have exhibited great potential for achieving high power conversion efficiencies (PCEs). Meanwhile, developing asymmetric SMAs to improve photovoltaic performance by modulating energy level distribution and morphology has drawn lots of attention. In this work, based on the high‐performance SMA (Y6), three are developed substituting fluorine atoms terminal group with chlorine atoms, namely SY1 (two F one Cl atom), SY2...
Abstract Polymerization sites of small molecule acceptors (SMAs) play vital roles in determining device performance all‐polymer solar cells (all‐PSCs). Different from our recent work about fluoro‐ and bromo‐ co‐modified end group IC‐FBr (a mixture IC‐FBr1 IC‐FBr2), this paper, we synthesized purified two regiospecific substituted groups (IC‐FBr‐ o & IC‐FBr‐ m ), which were then employed to construct regio‐regular polymer named PYF‐T‐ , respectively . In comparison with its isomeric...
The ternary device achieved an excellent PCE of 15.02% with enhancement in both <italic>V</italic><sub>OC</sub> and <italic>J</italic><sub>SC</sub> by adding a red-absorbing SMA high LUMO level.
Abstract Generally, highly efficient organic solar cells require both a high open‐circuit voltage ( V OC ) and short‐circuit current density J SC ). Reducing the energy loss E is an effective way to achieve without compromising photocurrent, which ideal for enhancing power conversion efficiencies (PCEs). Herein, new chlorinated nonfullerene acceptor (ITC‐2Cl) with thiophene‐fused end groups developed. In comparison unchlorinated counterpart (ITCPTC), introduction of Cl improves not only...
Here, we combine two donor polymers with a relatively short synthesis method and fabricate ternary organic solar cells (OSCs) high efficiency decent figure-of-merit. A series of characterizations show that the optimal morphology blend is result coupling competition PTQ10 PTVT-T, where molecular packing phase separation motif broken but strong aggregation PTVT-T suppressed, resulting in efficient charge transport collection, as well suppressed bimolecular recombination. Moreover, previously...
Abstract Anode modification is vital for improving device performance of organic solar cells (OSCs). PEDOT:PSS the most widely applied hole transport layer (HTL) in OSCs. In this work, three kinds modified HTLs, namely PEDOT:PSS‐PA, PEDOT:PSS‐TA, and PEDOT:PSS‐DA are readily prepared via simple doping phenylethylamine derivatives into commercially available Al 4083, by modulating number hydroxyl groups on adulterant molecules. All them exhibit enhanced work functions (WFs) conductivities....
Abstract Considering the robust and stable nature of active layers, advancing power conversion efficiency (PCE) has long been priority for all‐polymer solar cells (all‐PSCs). Despite recent surge PCE, photovoltaic parameters state‐of‐the‐art all‐PSC still lag those polymer:small molecule‐based devices. To compete with counterparts, judicious modulation morphology thus device electrical properties are needed. It is difficult to improve all concurrently all‐PSCs advanced efficiency, one...
An asymmetric acceptor BTP-PhC6-C11 shows hydrogen bond assisted and tighter crystal packing enhanced electronic coupling as compared with symmetric Y6 BTP-PhC6, organic solar cells based on PM1:BTP-PhC6-C11 realized a highest PCE of 18.33%.
Abstract The central core in A‐DA 1 D‐A‐type small‐molecule acceptor (SMAs) plays an important role determining the efficiency of organic solar cells (OSCs), while principles governing efficient design SMAs remain elusive. Herein, we developed a series with pyrido[2,3‐ b ]quinoxaline (PyQx) as new electron‐deficient unit by combining cascade‐chlorination strategy, namely Py1, Py2, Py3, Py4 and Py5. introduction chlorine atoms reduces intramolecular charge transfer effects but elevates LUMO...