A5100454282- Advanced Polymer Synthesis and Characterization
- Photopolymerization techniques and applications
- Additive Manufacturing and 3D Printing Technologies
- Perovskite Materials and Applications
- Synthetic Organic Chemistry Methods
- biodegradable polymer synthesis and properties
- Innovative Microfluidic and Catalytic Techniques Innovation
- Quantum Dots Synthesis And Properties
- Advanced Photocatalysis Techniques
- Photochromic and Fluorescence Chemistry
- Conducting polymers and applications
- Luminescence and Fluorescent Materials
- Radical Photochemical Reactions
- Machine Learning in Materials Science
- Organic Electronics and Photovoltaics
- Silicone and Siloxane Chemistry
- Click Chemistry and Applications
- Oxidative Organic Chemistry Reactions
- Carbon dioxide utilization in catalysis
- Polymer composites and self-healing
- Advanced Thermoelectric Materials and Devices
- Bone Tissue Engineering Materials
- Nanoparticle-Based Drug Delivery
- Polydiacetylene-based materials and applications
- Organoboron and organosilicon chemistry
Soochow University
2014-2024
University of North Carolina at Chapel Hill
2023-2024
Soochow University
2024
Lanzhou Institute of Chemical Physics
2018
Chinese Academy of Sciences
2018
Dalian University of Technology
2015-2017
State Key Laboratory of Fine Chemicals
2015
Molecular Devices
2015
Dalian University
2015
Zhengzhou University
2012
The stability-related issues arising from the perovskite precursor inks, films, device structures and interdependence remain severely under-explored to date. Herein, we designed an ionic-liquid polymer (poly[Se-MI][BF4 ]), containing functional moieties like carbonyl (C=O), selenium (Se+ ), tetrafluoroborate (BF4- ) ions, stabilize whole fabrication process. C=O Se+ can coordinate with lead iodine (I- ions polyhalide colloids compositions of inks for over two months. anchored on grain...
Mixed‐halide CsPbI 2 Br inorganic perovskite shows great promise in photovoltaic application due to its reasonable band gap required for tandem top‐cell, and more stable cubic phase. To date, conventional one‐step spin‐coating is still the major process fabricating films, which, however, difficult yield homogeneous compact layer slow crystallization. Herein, effective anti‐solvent engineering high‐quality absorbers successfully developed by using a green solvent of ethyl acetate (EA)....
Abstract The inorganic p‐type semiconductor CuI possesses several unique characteristics such as high transparency, low‐production cost, hole mobility, and good chemical stability is a promising hole‐transporting material candidate that can be explored in solar‐cell devices. Herein, we adopt simple solid–gas reaction method to fabricate uniform film by exposing thermally evaporated copper iodine vapor apply it layer (HTL) inverted planar perovskite solar cells (PSCs). optimized devices...
Three-dimensional (3D) printing based on photoinduced reversible addition–fragmentation chain transfer (RAFT) polymerization is emerging as a versatile and powerful method to prepare "living" 3D objects, which can be postmodified with various functionalities. However, an additional photoinitiator or photocatalyst necessary in these systems, toxic will cause negative effects the properties of prepared materials. Here, we report oxygen-tolerant rapid living photoiniferter RAFT polymerization,...
Improved performance and stability of low temperature printable carbon counter electrode based perovskite solar cells by interfacial engineering the hole selective contact with TPDI.
Abstract Herein, we successfully applied a facile in-situ solid-state synthesis of conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT) as HTM, directly on top the perovskite layer, in conventional mesoscopic solar cells (PSCs) (n-i-p structure). The fabrication PEDOT film only involved very simple polymerisation step from monomer 2,5-dibromo-3,4-ethylenedioxythiophene (DBEDOT) made commercially available and cheap starting material. ultraviolet photoelectron spectroscopy (UPS)...
Three-dimensional (3D) printing utilizing controlled polymerization systems is emerging as a powerful approach to fabricate "living" objects, which can be further modified with various functionalities. Here, we report photoinduced free radical-promoted cationic reversible addition–fragmentation chain transfer (RAFT) under broad wavelengths from ultraviolet (UV) near-infrared (NIR) light. A commercially available iron catalyst, cyclopentadienyl dicarbonyl dimer (Fe2(Cp)2(CO)4), was used the...
The application of reversible deactivation radical polymerization techniques in 3D printing is emerging as a powerful method to build "living" polymer networks, which can be easily postmodified with various functionalities. However, the building speed these systems still limited compared commercial systems. Herein, digital light processing (DLP)-based system via photoinduced free radical-promoted cationic addition-fragmentation chain transfer vinyl ethers, objects by DLP printer at...
Photoinduced 3D printing based on the reversible addition-fragmentation chain transfer (RAFT) process has emerged as a robust method for creating diverse functional materials. However, achieving precise control over mechanical properties of these printed objects remains critical challenge practical application. Here, we demonstrated RAFT step-growth polymerization bifunctional xanthate and vinyl acetate. Additionally, photoinduced through with tetrafunctional By adjusting molar ratio...
Butyl acrylate is polymerized in the living way under irradiation of purple light‐emitting diode (LED) or sunlight without photocatalyst at ambient temperature. 2‐((Phenoxycarbonothioyl)thio) ethyl propanoate) exclusively added and acted as an initiator a chain transfer agent simultaneously current system. Poly(butyl acrylate) with well‐regulated molecular weight relatively narrow distribution ( Ð < 1.30) synthesized. High conversion (>95%) can be achieved within several minutes....
Photopolymerization-based three-dimensional (3D) printing techniques have been widely utilized to fabricate polymeric materials with complex architectures. The application of reversible deactivation radical polymerization (RDRP) in 3D is emerging as a powerful tool introduce various postprinting abilities but still at an early stage. Here, photoinduced free radical-promoted cationic addition–fragmentation chain transfer (RAFT) method was developed, utilizing the direct photolysis RAFT agent...
The emergence and development of photopolymerization 3D printing based on controlled polymerization techniques have shown significant advantages in the fabrication "living" polymeric materials with various functionalities. However, it is crucial to consider degradation these printed objects for environmentally friendly development. Herein, mono-, bi-, trifunctional vinyl ether monomers degradable ester cores were synthesized used via photoinduced free radical promoted cationic reversible...
The application of cationic RAFT polymerization in photocuring has enabled the fabrication stimuli-responsive materials. However, these systems mainly rely on UV light, limiting their broader application. In this study,...
Photoinduced polymerization is an attractive technique with the advantages of easy operation, mild conditions, and excellent temporospatial controllability. However, application this in step-growth highly challenging. Here, we present a catalyst-free, visible-light-induced method utilizing photo-RAFT single-unit monomer insertion reaction between xanthate vinyl ether groups. Benefitting from reaction, pendant cationic RAFT agent can be generated each repeating unit polymer backbone. Both...
A near-infrared (NIR) light induced controlled cationic polymerization is presented here. The halide abstraction reaction between the cyclopentadienyl iron dicarbonyl dimer (Fe2(Cp)2(CO)4) and an organic utilized to generate initial radicals or cations under mild conditions, which can be further combined with both radical reversible addition-fragmentation chain transfer (RAFT) polymerization. Well-defined poly(vinyl ether)s polyacrylates are prepared successfully NIR by this method....
We present a robust manganese-catalyzed cationic reversible addition-fragmentation chain transfer (RAFT) polymerization induced by visible light. Well-defined poly(vinyl ether)s with controlled molecular weight and distributions (MWDs) can be conveniently prepared at room temperature without monomer purification. The commercially available manganese carbonyl bromide is used as the photocatalyst for RAFT polymerization. Moreover, this method has been further applied in both batch continuous...
Abstract Polymer molecular weight distribution (MWD) is a key parameter of polymers. Here we present robust method for controlling polymer MWD in controlled cationic polymerizations. A latent mediator strategy was designed and combined with temporal programming to regenerate mediators at different times during polymerization. Both the breadths shapes curves were tuned easily by adjusting an external light source. Bimodal, trimodal, tetramodal distributions obtained, could be varied from 1.06...
The emergence of covalent adaptable networks (CANs) based on dynamic bonds (DCBs) presents a promising avenue for achieving resource recovery and utilization. In this study, we discovered bond called selenacetal, which is obtained through double click reaction between selenol activated alkynes. Density functional theory (DFT) calculations demonstrated that the ΔG formation selenoacetals ranges from 12 to 18 kJ mol
A perylenediimide (PDI) tetramer‐based three dimensional (3D) molecular material, termed SFX‐PDI4, has been designed, synthesized, and characterized. The low‐lying HOMO LUMO energy levels, high electron mobility good film‐formation property make it a promising transport material (ETM) in inverted planar perovskite solar cells (PSCs). device exhibits power conversion efficiency (PCE) of 15.3% with negligible hysteresis, which can rival that based on PC 61 BM. These results demonstrate...