A5035084249- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Perovskite Materials and Applications
- Organic Light-Emitting Diodes Research
- Thin-Film Transistor Technologies
- Molecular Junctions and Nanostructures
- Semiconductor materials and interfaces
- Advanced Battery Materials and Technologies
- Advancements in Battery Materials
- Advanced Power Amplifier Design
- Radio Frequency Integrated Circuit Design
- Lanthanide and Transition Metal Complexes
- Inorganic Chemistry and Materials
- X-ray Diffraction in Crystallography
- Full-Duplex Wireless Communications
- Advanced battery technologies research
- Luminescence and Fluorescent Materials
- Supercapacitor Materials and Fabrication
- Fullerene Chemistry and Applications
- Crystallization and Solubility Studies
- Magnetism in coordination complexes
- Electromagnetic Compatibility and Noise Suppression
- Advanced Algebra and Logic
- Electrical Contact Performance and Analysis
- Shape Memory Alloy Transformations
Xiangtan University
2014-2025
South China University of Technology
2016-2023
Changzhou University
2022-2023
University of Toronto
2019
State Key Laboratory of Pulp and Paper Engineering
2018
State Key Laboratory of Luminescent Materials and Devices
2017-2018
State Council of the People's Republic of China
2015-2018
Qingdao Institute of Bioenergy and Bioprocess Technology
2014-2016
Chinese Academy of Sciences
2014-2016
Qingdao Center of Resource Chemistry and New Materials
2014-2016
Abstract Volatile solid (VS)‐additives are regarded as an effective tool to manipulate morphology of sequential deposited (SD) active layers for improving power conversion efficiencies (PCEs) organic solar cells (OSCs), while the independent effect VS‐additives on donor and acceptor is often overlooked. Herein, a new VS‐additive named 2‐(2‐methoxyphenyl)benzo[ b ]thiophene (BTO) synthesized applied in SD binary PM6/L8‐BO layers. Introducing it into bottom PM6 layer (PM6 + ), BTO has low...
Abstract Achieving both high power conversion efficiency (PCE) and device stability is a major challenge for the practical development of organic solar cells (OSCs). Herein, three non‐fully conjugated dimerized giant acceptors (named 2Y‐sites, including wing‐site‐linked 2Y‐wing, core‐site‐linked 2Y‐core, end‐site‐linked 2Y‐end) are developed. They share similar monomer precursors but have different alkyl‐linked sites, offering fine‐tuned molecular absorption, packing, glass transition...
Abstract Two novel narrow bandgap π‐conjugated polymers based on naphtho[1,2‐ c :5,6‐ ′]bis([1,2,5]thiadiazole) (NT) unit are developed, which contain the thiophene or benzodithiophene flanked with alkylthiophene as electron‐donating segment. Both copolymers exhibit strong aggregations both in solution and thin films. The resulting higher molecular weight show photovoltaic performance by virtue of enhanced short‐circuit current densities fill factors, can be attributed to their absorptivity...
To obtain a polymer based on benzodithiophene (BDT) owning both largely extended π-conjugation system and low-lying highest occupied molecular orbital (HOMO), (PBDTBzT-DTffBT) containing benzothienyl-substituted BDT is designed synthesized. Compared with the (PBDTT-DTffBT) thienyl-substituted BDT, PBDTBzT-DTffBT exhibits better thermal stabilities, red-shifted absorption spectra, stronger intermolecular interactions. The HOMO lowest unoccupied (LUMO) in are decreased by 0.11 0.13 eV,...
Abstract Although much research on device engineering have brought about significant improvements in PM6:Y6‐based polymer solar cell (PSCs) performance, there is still a lack of relevant to solve the problems caused by over‐aggregation Y6 and long‐term stability morphology. Herein, newly designed synthesized low‐bandgap asymmetric small molecule acceptor TIT‐2Cl based thieno[3,2‐ b ]indole core elaborately introduced into PSCs suppress molecules with significantly increased efficiency from...
Linking‐site engineering, used to graft two or more monomers, are crucial for achieving high‐performance Y‐series giant molecule acceptors (Y‐GMAs). However, the reported Y‐GMAs all use a single‐typed linking site, making it difficult finely‐tune their optoelectronic properties. Herein, we develop non‐fully conjugated Y‐GMA (named 2Y‐we), with hybrid sites at wing and end‐group of combine respective advantages site linked counterparts. Compared its parental monomer, 2Y‐we shows different...
Two new non-fullerene acceptors with expanded end-groups were developed, which present an improved power conversion efficiency up to 9.0%.
The development of intercalation anodes with high capacity is key to promote the progress "rocking-chair" Zn-ion batteries (ZIBs). Here, layered BiOI considered as a promising electrode in ZIBs due its large interlayer distance (0.976 nm) and low Zn2+ diffusion barrier (0.57 eV) obtained by density functional theory, free-standing nanopaper designed. process mechanism Zn(H2O)n2+ insertion are proved ex situ X-ray diffraction, Raman, photoelectron spectroscopy. suitable potential (0.6 V vs...
A new small molecule of TPA(DPP–PN)<sub>3</sub> was obtained with appending planar phenanthrene units in the molecular terminals, and displayed a maximum PCE 3.67% OSCs.
Linking‐site engineering, used to graft two or more monomers, are crucial for achieving high‐performance Y‐series giant molecule acceptors (Y‐GMAs). However, the reported Y‐GMAs all use a single‐typed linking site, making it difficult finely‐tune their optoelectronic properties. Herein, we develop non‐fully conjugated Y‐GMA (named 2Y‐we), with hybrid sites at wing and end‐group of combine respective advantages site linked counterparts. Compared its parental monomer, 2Y‐we shows different...
To improve the photovoltaic performance of non-fullerene polymer solar cells (NF-PSCs), it is essential to develop wide bandgap (WBG) donors that can match with narrow acceptors. Side-chain...
We report a series of counterion-tunable n-type conjugated polyelectrolytes for the interface engineering polymer solar cells.
Copolymers based on benzodithiophene and quinoxaline, represented by 4,8-bis(5-(3,4,5-tris(octyloxy)phenyl)thiophen-2-yl)benzo[1,2-b:4,5-b′]dithiophene (TOBDT) 2,3-diphenyl-5,8-di(thiophen-2-yl)quinoxaline (TQ1) or 10,13-bis(4-(2-ethylhexyl)thiophen-2-yl)dibenzo[a,c]phenazine (TQ2), were synthesized via a Stille coupling reaction. By increasing the conjugation in TQ2 unit, polymer showed narrower band gap (Eg), lower highest occupied molecular orbital energy level enhanced interchain π–π...
A polymer (PBDTPF-DTBT) was designed and synthesized, which exhibited high photovoltaic performance with PCE = 7.02%.
In this study, three novel D–A-type terpolymers of PBDTT–PPzBT–H, PBDTT–PPzBT–F and PBDTT–PPzBT–O were synthesized by copolymerizing electron-rich BDTT two electron-deficient PPz BT units.
The layer-by-layer process method, which had been used to fabricate a bilayer or bulk heterojunction organic solar cell, was developed highly efficient ternary blend cells in small molecules and polymers act as two donors. active layer could be formed by incorporating the into polymer based via method: were first coated on surface of poly(3,4-ethylenedioxy-thiophene):poly(styrenesulfonate) ( PSS), then mixed solution fullerene derivative spin-coated top molecule layer. In this crystalline...
Naphthalene diimide (NDI) and perylene (PDI) based polymeric semiconductors with high mobility have shown great promise as electron transport materials (ETMs) in applications such high-performance polymer solar cells (PSCs) other optoelectronic devices. However, these NDI PDI usually limited adjustment of the lowest unoccupied molecular orbital (LUMO) energy levels, which hinders their further use organic electronic device. Here, by using various degrees esterification instead imide groups,...
Two indacenodithiophene-based molecules with different side chains, BTIDT-C6 and BTIDT-OC12, have been designed synthesized for solution-processed, small-molecule organic solar cells (OSCs) donor materials. By optimizing the hole mobility of materials is modulated, which has proven by field-effect transistor (OFET) performances. Solar based on show a power conversion efficiency (PCE) 4.83%. To best our knowledge, this first report about indacenodithiophene-based, OFETs, it also one highest...