bluuebunny/crossref_metadata_2025_split huggingface dataset:
Alcohol‐Soluble n‐Type Polythiophenes as Cathode Interlayer in Organic Photodetectors for Hole Blocking
Authors: Wang Jiahui , Deng Sihui , Hu Junli , Miao Junhui , Li Jingyu , Liu Jun , Liu Yichun 
Published: February 2024

AbstractFor organic photodetectors (OPDs), cathode interlayer (CIL) with low‐lying highest occupied molecular orbital (EHOMO) energy level is required to reduce dark current density (Jd). In this study, toward application as CIL in OPDs, an alcohol‐processable n‐type conjugated polymer (n‐PT8) based on imide/cyano‐substituted polythiophene backbone and branched oligo(ethylene glycol) side chain is developed. Owing to the electron‐accepting imide/cyano groups on the backbone, n‐PT8 exhibits deep‐lying EHOMO of −5.80 eV and a high conductivity of 5.12 × 10−6 S cm−1. OPD with n‐PT8 as CIL exhibits dark current density one order of magnitude lower than that with the state‐of‐the‐art CIL material because of the large energy barrier for reverse hole injection. Moreover, the device performance is insensitive to the n‐PT8 layer thickness, which is very desirable for the mass production of OPDs. The near‐infrared (NIR) OPDs based on n‐PT8 exhibit an ultra‐low dark current density of 1.76 × 10−9 A cm−2 and a specific detectivity of 2.88 × 1012 cm Hz1/2 W−1 at −1 V. To the best knowledge, this is the first report on n‐type polythiophene derivatives as CIL in organic opto‐electronic devices.
Healable and Recyclable Polyurea‐Urethane Elastomer with High Mechanical Robustness, Superhigh Elastic Restorability, and Exceptional Crack Tolerance
Authors: Xiang Xuanbao , Zhang Lin , Sheng Donghai , Yang Xiao , Qi Xiaowen , Wei Shutao , Dai Huilian 
Published: February 2024

AbstractDeveloping the elastomer materials with high mechanical robustness through simple and environmentally friendly methods poses significant challenges. In this research, a simple solvent‐free polymerization method is reported to synthesize a transparent polyurea‐urethane elastomer using polycaprolactone (PCL) as soft segment and adjusting various hard segments. The target elastomer successfully combine acceptable mechanical performance and exceptional crack tolerance, whereby the notched samples can readily lift 25000 times (a rarely reported value) its weight. Moreover, the superhigh elastic restorability allow target elastomer recover to its original dimension from elongation over 5 times or to fracture. These results are attained due to the presence of densely and uniformly distributed hard microdomains within the elastomer, leading to effective energy dissipation. Furthermore, owing to the linear structure of the molecular chains and the reversible hydrogen‐bonding interactions between the chains, target elastomer can be conveniently healed and recycled under heating conditions. This research can provide a general and feasible strategy for the construction of elastomer materials with exceptional comprehensive properties, and the elastomers are expected to be applied in emerging fields such as protective elements and flexible electronics.
Scalable Fabric‐Based Solar Steam Generator
Authors: Li Yaping , Wang Run , Zhang Li , Wang Xiaoyin , Zhang Kai , Shou Wan , Fan Jie 
Published: February 2024

AbstractSolar steam generation has emerged as a promising approach to address water scarcity issues globally. However, a few challenges remain, including high cost, limited scalability, and salt accumulation, before this technique can be adopted by the general population. Here, an all‐in‐one photothermal fabric is reported such as a solar steam generator (SSG), consisting of commercial hydrophilic superfine denier polypropylene fiber and water‐repellent expandable polyethylene foam, manufactured via a conventional weaving machine. By tailoring the yarn twist and density, optimized micro‐macro hierarchical channels can be created in the SSG to provide sufficient water supplementation and continuous steam generation. Due to the Marangoni effect introduced by the temperature gradient along the yarns water with high salinity transports to the bulk water, realizing a salt‐rejecting property. As a result, the SSG demonstrates a rapid evaporation rate of 1.408 kg m−2 h−1 and energy efficiency of 92.43% under 1 sun, as well as outstanding stability for desalination of high salinity brine (10 wt% NaCl). Furthermore, this strategy provides a new solution to achieve excellent cost‐effectiveness in clean water production at ≈1700 g h−1 $−1. This work provides a sustainable fabric‐based SSG for practical large‐scale clean water production, and can potentially inspire other textiles‐based water treatment.
Adaptive Epidermal Bioelectronics by Highly Breathable and Stretchable Metal Nanowire Bioelectrodes on Electrospun Nanofiber Membrane
Authors: Yoon Hyeokjun , Choi Joonhwa , Kim Jin , Kim Jinsol , Min JinKi , Kim Dohyung , Jeong Seongmin , Lee Jae Gun , Bang Junhyuk , Choi Seok Hwan , Jeong Youngin , Kim C‐Yoon , Ko Seung Hwan 
Published: February 2024

AbstractThe potential of the electrospun nanofiber membrane (ENM)‐based soft electronics in epidermal bioelectronics has gained huge attention with their conformal compatibility with the human body and associated performance improvements. This study presents a novel filtration‐based direct local nanowire patterning method on the ENM using dispenser systems, aiming to fabricate stretchable, breathable, and highly conductive epidermal electronics harnessing various types of metal nanowires, including Ag, Ag@Au core–shell, and Ag@(Au–Pt) core–shell nanowires. By utilizing capillary force from a support bed beneath the ENM, efficient fluid flow can be achieved, eliminating the requirement for expensive vacuum equipment typically employed in filtration processes. In the postprocessing phase, the photothermal effect of a laser is harnessed to improve the mechanical stability of the nanowire–ENM interface. The maskless fabrication process is instrumental in crafting epidermal bioelectronics in that the design can be spontaneously replicated according to diverse human body geometries in situ. The selective insulation process can be also executed with the same dispenser system, streamlining the overall fabrication system. Applications are demonstrated showcasing the advantages of the presented fabrication system and the resulting devices, including an in vivo epicardial signal recording electrode, an epidermal electrochemical biosensor, and a customized epidermal electromyography (EMG)‐based human–machine interface (HMI).
2D CuInP2Se6 in High‐Sensitivity UV‐vis And X‐Ray Detection
Authors: Sun Fapeng , Xu Haojie , Hong Wenting , Sun Zhihua , Liu Wei 
Published: February 2024

AbstractMetal thio(seleno)phosphates are renowned for their multifaceted physical characteristics and versatile applications, particularly in optoelectronics. In detection applications, a low and stable dark current is crucial, enhancing the sensitivity and signal‐to‐noise ratio of detectors. Herein, a van der Waals layered material has synthesized, CuInP2Se6. Despite its nanometric scale, 2D CuInP2Se6 detector transcends the conventional absorption inefficiencies tied to ultrathin materials. It delivers exceptional ultraviolet–visible detection, characterized by an ultralow, stable dark current of 150 fA, and a noise power density of 27.7 fA Hz−1/2 at room temperature. The in‐depth investigation reveals a responsivity of 4.47 A W−1, an external quantum efficiency of 1369%, a special detectivity of 1.44 × 1013 Jones, and a rapid response speed of 280 µs, positioning it at the pinnacle of 2D photodetector performance. The CuInP2Se6’s ultralow, stable dark current paves the way for X‐ray detection, achieving an unprecedented sensitivity of 1.32 × 105 µC Gyair−1 cm−2 and a low detection limit of 0.15 µGyair s−1. Furthermore, 2D CuInP2Se6 detector exhibits a remarkable image‐sensing capability, adeptly capturing intricate patterns with high resolution. This discovery indicates its promise in revolutionizing integrated micro/nano optoelectronic devices, opening avenues for advancements in light and X‐ray detection and imaging technologies.
Enabling Heteroatom Doping of Flexible MXene Film in Seconds: A Microwave‐Induced Targeted Thermal‐Shock Method
Authors: Zhong Geng , Yang Haiyan , Zeng Minling , Liu Sisi , Chen Shengnan , Fan Zhimin , Zhu Caizhen , Xu Jian , Yu Jiali 
Published: February 2024

AbstractHeteroatom doping can efficiently tailor the physicochemical properties of 2D MXene materials for enhancing the energy storage performance. However, in mostly applied doping strategies, the wet chemistry method typically suffers tedious separation and abstersion process while the solid‐phase thermal strategy (traditional furnace heating) employed long‐time （several hours） high‐temperature treatment may cause degradation of MXene. In this work, a universal, energy efficient and environmental‐friendly strategy is reported to realize the heteroatom doping of MXene within seconds by microwave‐induced targeted thermal shock. The MXene film can self‐heat to >800 °C within seconds followed by generating dazzling plasma under microwave field. The high temperature combined with plasma create a localized ultrahigh‐energy environment in MXenes, which promotes the rapid decomposition of preloaded dopant precursors and lattice/surface functional group substitutions between dopant atoms and MXene. The resulted nitrogen (N) and sulfur (S) co‐doped MXene showed significantly improved capacity and performance stability under deformations. Compared with the traditional furnace heating, the targeted heating strategy have significantly higher energy and time efficiencies and reduced carbon footprint. In addition, this method can be readily extended to various element doping of MXene. The microwave‐induced targeted thermal‐shock represents a general and efficient strategy for the fast heteroatom doping of MXene.
An Enzyme‐Engineered Coppery Nanozyme for High‐Efficiency Mild Photothermal/Chemodynamic/Starvation Therapy Through Self‐Reinforcing Cancer Energy Metabolism Regulation
Authors: Bian Yulong , Liu Bin , Ding Binbin , Yuan Meng , Yang Chunzheng , Li Kai , Chang Mengyu , Kheraif Abdulaziz A. Al , Ma Ping'an , Lin Jun 
Published: February 2024

AbstractPhotothermal therapy (PTT) has a great prospect in further improving tumor therapeutic outcomes, whereas its efficiency is restrained by low light penetration, excessive heat damage to normal tissues, up‐regulated heat shock proteins (HSPs), and limited effect of single treatment. Herein, an enzyme‐engineered coppery nanozyme based on dendritic mesoporous coppery carbon nanosphere as the cornerstone to load with glucose oxidase (GOx) followed by modification with hyaluronic acid is constructed. Density functional theory calculations indicate that the obtained coppery nanozyme exhibits peroxidase and glutathione oxidase mimicking activities to improve hydroxyl radicals (•OH) production. Furthermore, both the generation of •OH production and GOx‐induced energy supply blockade can reduce HSPs expression to enhance the mild PTT (η = 34.9 %) of coppery nanozyme upon the irradiation of 1064 nm laser, and in turn, accelerate the catalytic processes of coppery nanozyme for more generation of •OH. Last but not least, the introduction of copper can induce lipoylated protein dihydrolipoamide S‐acetyltransferase aggregation to cause cellular cuproptosis. Due to the synergy of multiple therapies, the tumor inhibition rate can reach 93.4%. Overall, this work provides an effective strategy for potential tumor treatment on the basis of synergistic therapies.
Photo‐Induced Active Ion Transport‐Assisted Efficient Ionic Power Harvesting from Bioinspired Janus Dual‐Field Heterostructures
Authors: Wang Lili , Feng Yaping , Zhou Yi , Zhang Yuhui , Yang Xiaotong , Hu Jingjing , Wu Lijuan , Lei Xinyu , Chen Yupeng , Lv Guocheng , Jiang Lei 
Published: February 2024

AbstractNatural organisms have developed various biological ion channels/transporters to maintain normal life activities to adapt to changing environments. Significantly, ion transporters with active ion transport property show much more controllability on these activities due to a variety of external stimuli, giving guidance to construct artificial counterparts for overcoming the issues in simple nanofluidic systems restricted by self‐diffusive ion transport. Herein, a 2D nanofluidic system based on a Janus membrane (i.e., JM) is constructed, which can achieve light‐driven active ion transport and do favor for ionic power harvesting in electrolyte systems with equal concentrations. The JM is obtained through sequentially assembled montmorillonite (MMT) decorated with photoelectric molecules (i.e., PMMT) and MXene nanosheets. Due to the formed intramembrane electric field and temperature gradient caused by the efficient charge separation and localized thermal excitation under light illumination, a photovoltaic‐driven force and thermo‐osmotic are generated for preferential ion transport. In addition, the unidirectional active transport is employed to harvest ionic power, showing an output power density of 2.0 mW m−2 and a high‐performance energy conversion efficiency of 8.3 × 10−4%. The effects of the light intensity, electrolyte concentration and species on energy conversion performance are investigated, showing the university for ionic power harvesting.
A Thin‐Layer, Li+ Compensation, Moisture‐Tolerant Interfacial Modification of Cu Substrate Toward the Anode‐Less, Energy/Power Dense Li Metallic Batteries
Authors: Wang Helin , Yuan Yucheng , Jia Qiurong , Shao Ahu , Zhang Min , Wang Zhiqiao , Cheng Lu , Tang Xiaoyu , Li Shaowen , Ma Yue 
Published: February 2024

AbstractThe unregulated metallic deposition and continuous cracking of the fragile solid electrolyte interphase are considered the critical barriers that compromise the cyclability of lithium metal batteries (LMB), especially under low N/P ratio (<3) pairing modes. Herein, an ultra‐thin (5 µm), lightweight (0.25 mg cm−2), and moisture‐proof interfacial layer composed of the high‐entropy alloys (denoted as HEAs) and interweaved carbon nanotubes (CNTs) scaffold is constructed to modify the current collector, moreover, the thermally‐induced Li22Si5 alloy blended with the hydrophobic ethylene‐vinyl acetate copolymer (EVA) is infiltrated into the scaffold pores as the moisture‐proof cation reservoir. The HEA@CNT/Li22Si5@EVA interfacial layer not only maximizes the Li‐utilization degree with minimal voltage divergence in symmetric cells but also compensates for irreversible Li depletion in the pouch‐format anode‐less models. As the HEA@CNT/Li22Si5@EVA‐Cu substrate paired with the LiNi0.8Mn0.1Co0.1O2 cathode in a 200 mAh prototype, the phase evolution of oxide cathode and efficient Li utilization at the anode substrate can be real‐time monitored by the transmission‐mode operando X‐ray diffraction. This interfacial layer strategy affords multifunctionality to enable the LMB prototyping without excessive Li abuse. Consequently, cycling endurance and the balanced energy densities (420.1 Wh kg−1) are obtained on the whole cell.
Decreasing the O2‐to‐H2O2 Kinetic Energy Barrier on Dilute Binary Alloy Surfaces with Controlled Configurations of Isolated Active Atoms
Authors: Lin Shang‐Cheng , Chang Chun‐Wei , Tsai Meng‐Hsuan , Chen Chih‐Hao , Lin Jui‐Tai , Wu Chia‐Ying , Kao I‐Ting , Jao Wen‐Yang , Wang Chia‐Hsin , Yu Wen‐Yueh , Hu Chi‐Chang , Lin Kun‐Han , Yang Tung‐Han 
Published: February 2024

AbstractShifting from the typical 4e– pathway to H2O in electrochemical oxygen reduction to the 2e– pathway to H2O2 is increasingly recognized as an environmentally friendly approach for producing H2O2. However, the competitive 4e− pathway is a significant obstacle to the production of H2O2 since H2O is the thermodynamically favored product. Here, a series of Pt, Pd, and Rh active atoms diluted within inert‐Au matrices with precisely controlled atomic arrangements and coordination environments are synthesized via facet engineering for O2‐to‐H2O2 production. Surprisingly, individually dispersed Pt atoms within the Au surface enclosed by the square atomic arrangements exhibit superior H2O2 selectivity and achieve a maximum selectivity of 90% at 0.36 V versus the reversible hydrogen electrode. Operando synchrotron ambient pressure X‐ray photoelectron spectroscopy identifies the presence of *OOH key intermediates on these isolated Pt active sites. Grand canonical density‐functional theory also reveals that the kinetic energy barrier for the 2e− pathway (0.08 eV; OOH* + H+ + e− →  H2O2) on the isolated Pt sites is significantly lower than the 4e− pathway (0.29 eV; OOH* + H+ + e− → O* +  H2O). This work enables atomic‐scale control in dilute binary alloy surfaces with specific configurations of isolated active atoms and provides essential guidance for catalyst design to boost O2‐to‐H2O2 production.
Dynamic Adaptive Wrinkle‐Structured Silk Fibroin/MXene Composite Fibers for Switchable Electromagnetic Interference Shielding
Authors: Yin Guang , Wu Jing , Ye Lvxuan , Liu Liuxin , Yu Yuxin , Min Peng , Yu Zhong‐Zhen , Zhang Hao‐Bin 
Published: February 2024

AbstractFlexible and dynamic adaptive conductive composite fibers are demanded for functional fabrics and wearable devices, yet the weak interfaces often impair the critical performances for complicated application scenarios. Here, a general and scalable strategy is proposed to construct robust and reversible wrinkle structures on regenerated silk fibroin (RSF) fiber with 2D nanomaterials (i.e., MXene, graphene) by wet‐spinning technique. The dynamic conformation transition of silk fibroin and the core‐shell modulus mismatching together are responsible for the formation of wrinkled structures. Then, it effectively optimizes the interfaces between the assembled nanomaterials and fiber substrate, which significantly reinforce the fibers, complete conductive pathways, and endow exceptional robustness and durability. The MXene‐based fiber shows a high conductivity of ≈1125 S cm−1, far superior tensile strength of 214.3 ± 6.8 MPa and toughness of 15.2 ± 1.5 MJ m−3 as compared to RSF fiber. More interestingly, the transformable wrinkled structure further modulates surface behaviors and properties of the fibers, such as the switchable shielding performances from “off‐state” to “on‐state” induced by humidity. Additionally, the integration of mechanical flexibility and outstanding capacitance (≈829 F cm−3) further expects the great promise of MXene‐based fibers for self‐powered wearable electronics, and intelligent fabrics.
Achieving Nearly 100% Photoluminescence Quantum Efficiency in Organic Radical Emitters by Fine‐Tuning the Effective Donor‐Acceptor Distance
Authors: Lu Chen , Cho Eunkyung , Wan Keke , Wu Chunxiao , Gao Yuhang , Coropceanu Veaceslav , Brédas Jean‐Luc , Li Feng 
Published: February 2024

AbstractDonor‐acceptor (D–A•) type luminescent organic radicals have received widespread attention as efficient doublet emitters. However, their generally low photoluminescence quantum efficiency (PLQE) and limited photostability restrict their various applications. Since unraveling the relationship between structure and properties of D–A• type luminescent radicals remains a challenge, here, a series of tri(2,4,6‐trichlorophenyl)methyl (TTM) radical derivatives, which differ by the location of their ring fusion sites and nature of their heteroatoms, is synthesized. The PLQE of isomers varies by ten times as a function of ring fusion sites. In particular, the PLQE of a radical undergoing ring fusion at the carbazole 3,4‐position is as high as 98.0%. Quantum‐chemical calculations show that in the case of overlapping holes and electrons, by increasing the effective distance between the D and A moieties, the radiative transition rates of the radicals increase. Also, decreasing the electronic coupling between the charge‐transfer and local‐excited states and avoiding large geometrical distortions between the ground state (D0)_and the first excited state (D1) can significantly reduce the nonradiative transition rates. This work offers a design strategy to obtain efficient and stable luminescent radicals by modifying the sites of ring fusion, which allows control of the radiative and nonradiative transition rates.
Ultrasmall CoFe Bimetallic Alloy Anchored on Fluoride‐Free MXene by One‐Pot Etching Strategy for the Barrier‐Adsorption‐Catalyst Functions of Polysulfides in Lithium‐Sulfur Batteries
Authors: Wang Zhengran , Jiang Huiyu , Wei Chuanliang , Tian Kangdong , Li Yuan , Zhang Xinlu , Xiong Shenglin , Zhang Chenghui , Feng Jinkui 
Published: February 2024

AbstractThe rational construction of electrocatalysts has sparked a growing interest in accelerating redox kinetics of polysulfide and effectively restricting the “shuttle effect” in Li‐S batteries. In this work, a novel MXene‐supported ultrasmall Co3Fe7 bimetallic alloy hybrids are fabricated via a one‐pot molten salt etching strategy. The Ti3AlC2 precursor can be directly converted to Co3Fe7‐MXene using this environmentally friendly approach, eliminating the need for acid/alkaline treatments and complex procedures. Meanwhile, the ultrasmall Co3Fe7 alloy particles are in situ formed and tightly anchored on the MXene substrate. By simple coating, Co3Fe7‐MXene modified separator functions as a barrier to effectively inhibit the shuttle effect. Furthermore, electrochemical tests and theoretical calculations demonstrate that Co3Fe7‐MXene exhibits exceptional adsorption capacity and remarkable catalytic ability toward polysulfides, owing to the synergistic effect of bimetallic alloy. Consequently, Li‐S cells assembled with Co3Fe7‐MXene modified separator achieve a high capacity, excellent rate performance, and superior cycle stability. This study provides a comprehensive insight into the design of MXene with bimetallic alloys as efficient electrocatalysts for LiPSs in high‐performance and long‐life Li‐S batteries.
Incorporation of Decidual Stromal Cells Derived Exosomes in Sodium Alginate Hydrogel as an Innovative Therapeutic Strategy for Advancing Endometrial Regeneration and Reinstating Fertility
Authors: Liang Yuxiang , Shuai Qizhi , Zhang Xiao , Jin Shanshan , Guo Yuqian , Yu Zhaowei , Xu Xinrui , Ao Ruifang , Peng Zhiwei , Lv Huimin , He Sheng , Wang Chunfang , Song Guohua , Liu Zhizhen , Zhao Hong , Feng Qilong , Du Ruochen , Zheng Bin , Chen Zhaoyang , Xie Jun 
Published: February 2024

AbstractIntrauterine adhesion (IUA) stands as a prevalent medical condition characterized by endometrial fibrosis and scar tissue formation within the uterine cavity, resulting in infertility and, in severe cases, recurrent miscarriages. Cell therapy, especially with stem cells, offers an alternative to surgery, but concerns about uncontrolled differentiation and tumorigenicity limit its use. Exosomes, more stable and immunogenicity‐reduced than parent cells, have emerged as a promising avenue for IUA treatment. In this study, a novel approach has been proposed wherein exosomes originating from decidual stromal cells (DSCs) are encapsulated within sodium alginate hydrogel (SAH) scaffolds to repair endometrial damage and restore fertility in a mouse IUA model. Current results demonstrate that in situ injection of DSC‐derived exosomes (DSC‐exos)/SAH into the uterine cavity has the capability to induce uterine angiogenesis, initiate mesenchymal‐to‐epithelial transformation (MET), facilitate collagen fiber remodeling and dissolution, promote endometrial regeneration, enhance endometrial receptivity, and contribute to the recovery of fertility. RNA sequencing and advanced bioinformatics analysis reveal miRNA enrichment in exosomes, potentially supporting endometrial repair. This finding elucidates how DSC‐exos/SAH mechanistically fosters collagen ablation, endometrium regeneration, and fertility recovery, holding the potential to introduce a novel IUA treatment and offering invaluable insights into the realm of regenerative medicine.