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The ternary strategy is one of the effective methods to regulate the morphology of the active layer in organic solar cells (OSCs). In this work, the ternary OSCs with bulk heterojunction (BHJ) or layer‐by‐layer (LbL) active layers are prepared by using the polymer donor PM6 and the non‐fullerene acceptor L8‐BO as the main system and the fullerene acceptor PC71BM as the third component. The power conversion...
Given the crucial role of immune system in the occurrence and progression of various diseases such as cancer, wound healing, bone defect, and inflammation‐related diseases, immunomodulation is recognized as a potential solution for treatment of these diseases. Immunomodulation includes both immunosuppression in hyperactive immune conditions and immune activation in hypoactive conditions. For these...
Photocatalytic hydrogen production via water splitting is the subject of intense research. Photoinduced electron transfer (PET) between a photosensitizer (PS) and a proton reduction catalyst is a prerequisite step and crucial to affecting hydrogen production efficiency. Herein, three photoactive metal–organic framework (MOF) systems having two different PET processes where PS and Co(II) centers are...
Sliding mode triboelectric nanogenerator (S‐TENG) is effective for low‐frequency mechanical energy harvesting owing to their more efficient mechanical energy extraction capability and easy packaging. Ternary electrification layered (TEL) architecture is proven useful for improving the output performance of S‐TENG. However, the bottleneck of electric output is the air breakdown on the interface of...
The hygroscopic dopants used in Spiro‐OMeTAD hole transport material (HTM) in state‐of‐the‐art perovskite solar cells (PSCs) inevitably induce premature degradation of the devices. Here, two multifunctional polymer interface materials based on the perylene diimides (PDI) unit are developed. It is found that quasi‐two‐dimensional (2D) polymer 2DP‐PDI can form a denser film and exhibit better hydrophobicity...
Infected Tissue Regeneration
In article number 2205941, Xibo Pei, Jian Wang, and co‐workers report a silver nanoparticle (AgNPs) modified metal‐organic‐framework nanosystem (AgNPs@MOFs) with enhanced photodynamic efficiency and chemotherapy ability for infected tissue regeneration. The photodynamic performance under visible light disrupts bacteria translation process. The chemotherapy process causes...
Drug‐resistant bacterial infection impairs tissue regeneration and is a challenging clinical problem. Metal–organic frameworks (MOFs)‐based photodynamic therapy (PDT) opens up a new era for antibiotic‐free infection treatment. However, the MOF‐based PDT normally encounters limited photon absorbance under visible light and notorious recombination of photogenerated holes and electrons, which significantly...
Triple ionic and electronic conductivity (TIEC) in cathode materials for protonic ceramic fuel cells (PCFCs) is a desirable feature that enhances the spatial expansion of active reaction sites for electrochemical oxygen reduction reaction. The realization of optimal TIEC in single‐phase materials, however, is challenging. A facile route that facilitates the optimization of TIEC in PCFC cathodes is...
The rapid spread of drug‐resistant pathogens threatens human health. To address the current antibacterial dilemma, the development of antibiotic‐free strategies using nanotechnology is imperative. In this study, silver nanoparticles (Ag‐P&C NPs) with pH‐sensitive charge reversal and self‐aggregation capacities are successfully synthesized. In the acidic microenvironment of bacterial biofilms,...
Particulate matter (PM) pollution has become a serious environmental concern. Nanofibrous filters are widely reported to remove PM from polluted air. Herein, efficient and lightweight PM air filters are presented using airflow synergistic needleless electrospinning composed of auxiliary fields such as an airflow field and a secondary inductive electric field. Compared to needleless electrospinning...
Recent advances in nanotechnology now allow for the methodical implementation of therapeutic nucleic acids (TNAs) into modular nucleic acid nanoparticles (NANPs) with tunable physicochemical properties which can match the desired biological effects, provide uniformity, and regulate the delivery of multiple TNAs for combinatorial therapy. Despite the potential of novel NANPs, the maintenance of their...
Zn–air batteries (ZABs) are very promising for flexible energy storage, but their application is limited to the primary battery. Developing an efficient and non‐noble metal cathode toward oxygen reduction/evolution reactions (ORR/OER) is of great significance for the commercial application of rechargeable ZABs. Herein, a flexible self‐supported integrated bifunctional cathode is presented in which...
Polar oxides are widely used as the cathodes to impede the shuttle effect in lithium‐sulfur batteries, but suffer from the sluggish desorption and conversion of polysulfides due to too strong affinity of polysulfides on oxygen sites. Herein, employing halloysite as a model, an approach to overcome these shortcomings is proposed via engineering oxygen p‐band center by loading titanium dioxide nanoparticles...
Although the rapid development of polymer solar cells (PSCs) has been achieved, it is still a great challenge to explore efficient ways for improving power conversion efficiency (PCE) of PSCs from materials and device engineering. Ternary strategy has been confirmed as an efficient way to improve PCE of PSCs by employing three kinds of materials. In this work, one polymer donor PM6, and two non‐fullerene...
Hard carbon (HC) is a promising anode material for sodium‐ion batteries, but the performance remains unsatisfactory and the sodiation mechanism in HC is one of the most debated topics. Here, from self‐assembled cellulose nanocrystal sheets with crystallographic texture, unique HC nanosheets with vertically oriented (002) planes are fabricated and used as a model HC to investigate the sodiation mechanisms...
Single‐cell analysis offers unprecedented resolution for the investigation of cellular heterogeneity and the capture of rare cells from large populations. Here, described is a simple method named interfacial nanoinjection (INJ), which can miniaturize various single‐cell assays to be performed in nanoliter water‐in‐oil droplets on standard microwell plates. The INJ droplet handler can adjust droplet...
Organic photovoltaics (OPVs) are fabricated with PM6 as donor and T6Me, IT‐2F, or their mixture as acceptor. A 13.36% power conversion efficiency (PCE) is achieved from the optimized ternary OPVs with 50 wt% IT‐2F in acceptors, which is attributed to the enhanced photon harvesting of ternary active layers and improved exciton utilization efficiency through energy transfer from IT‐2F to T6Me. The efficient...
In article number 1701756, P. Yan, D. Lin, and co‐workers report a novel three‐dimensional freeze assembling printing technique for silver nanowire aerogels with controllable density (down to 1.3 mg cm−3), high electrical conductivity of 1.3 S cm−1, and excellent compressive resilience under 50% compressive strain. Remarkably, the printing methodology also enables the tuning of aerogel architectures...
Metallic aerogels have attracted intense attention due to their superior properties, such as high electrical conductivity, ultralow densities, and large specific surface area. The preparation of metal aerogels with high efficiency and controllability remains challenge. A 3D freeze assembling printing technique integrated with drop‐on‐demand inkjet printing and freeze casting are proposed for metallic...
A novel spinel Co2VO4 is studied as the Li‐ion battery anode material and it is sandwiched with a 3D ultralight porous current collector (PCC) and amorphous carbon. Co2VO4 demonstrates the high capacity and excellent cyclability because of the mixed lithium storage mechanisms. The 3D composite structure requires no binders and replaces the conventional current collector (Cu foil) with a 3D ultralight...
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