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Hybrid organic–inorganic perovskite (HOIP) ferroelectric materials have great potential for developing self‐powered electronic transducers owing to their impressive piezoelectric performance, structural tunability and low processing temperatures. Nevertheless, their inherent brittle and low elastic moduli limit their application in electromechanical conversion. Integration of HOIP ferroelectrics and...
Helicobacter pylori (H. pylori) is the major etiological factor of a variety of gastric diseases. However, the treatment of H. pylori is challenged by the destruction of targeted drugs by gastric acid and pepsin. Herein, a dual‐targeted cascade catalytic nanozyme PtCo@Graphene@Hemin‐2(L‐arginine) (PtCo@G@H2A) is designed for the treatment of H. pylori. The dual‐targeting ability of PtCo@G@H2A is derived...
Organic–inorganic hybrid lead halide perovskites (OLHPs), represented by (CH3NH3)PbI3, are one of the research focus due to their exceptional performance in optoelectronic applications, and ferroelastic domain walls are benign to their charge carrier transport that is confirmed recently. Among them, the 1D OLHPs feature better stability against desorption and moisture, but related 1D ones possessing...
Utilization of life‐like hydrogels to replicate synergistic shape/color changeable behaviors of living organisms has been long envisaged to produce robust functional integrated soft actuators/robots. However, it remains challenging to construct such hydrogel systems with integrated functionality of remote, localized and environment‐interactive control over synergistic discoloration/actuation. Herein,...
Increasing the fill factor (FF) and the open‐circuit voltage (VOC) simultaneously together with non‐decreased short‐circuit current density (JSC) are a challenge for highly efficient Cu2ZnSn(S,Se)4 (CZTSSe) solar cells. Aimed at such target in CZTSSe solar cells, a synergistic strategy to tailor the recombination in the bulk and at the heterojunction interface has been developed, consisting of atomic‐layer...
Bi Doped Graphene
In article number 2206218, Xianyang Lu, Thomas Frauenheim, Yongbing Xu, and co‐workers investigate femtosecond laser excitation induced electronic dynamic in Bi doped graphene, using time resolved and angular resolved photoemission spectrum. The Fermi surface in Dirac cone and carrier concentration is modulated by adatoms' content. This effectively tailors the competition between...
By introducing different contents of Bi adatoms to the surface of monolayer graphene, the carrier concentration and their dynamics have been effectively modulated as probed directly by the time‐ and angle‐resolved photoemission spectroscopy technique. The Bi adatoms are found to assist acoustic phonon scattering events mediated by supercollisions as the disorder effectively relaxes the momentum conservation...
About 10% efficient antimony selenosulfide (Sb2(S,Se)3) solar cell is realized by using selenourea as a hydrothermal raw material to prepare absorber layers. However, tailoring the bandgap of hydrothermal‐based Sb2(S,Se)3 film to the ideal bandgap (1.3–1.4 eV) using the selenourea for optimal efficiency is still a challenge. Moreover, the expensive selenourea dramatically increases the fabricating...
Supported bimetallic nanoparticles (NPs) with ultrasmall sizes and homogeneous alloying are attractive for catalysis. However, facile synthesis of this type of material remains very challenging. Here, the aerosol drying impregnation method for rapid, scalable, and general synthesis of silica‐supported bimetallic NPs is proposed. The method relies on aerosol spray drying to promote the mixing and dispersing...
Aqueous zinc (Zn) metal batteries have been regarded as the most promising aqueous batteries due to their low redox potential, high theoretical capacity, and abundant Zn resources. Unfortunately, Zn dendrite growth and serious side reactions drastically curtail the cycle life, severely affecting their large‐scale application. Herein, a multifunctional ordered Zn‐aminotrimethylene phosphonic acid (Zn‐ATMP)...
Nanofluidics
In article number 2102150, Hui Yang and co‐workers report a high‐throughput nanofluidic device for loading of various cargos into exosomes. The exosomes treated by the device can deliver their drug cargos to cancer cells and induce cell death, indicating the potential opportunities of the device for developing new exosome‐based delivery vehicles for further biomedical applications.
Efficient loading of various exogenous cargos into exosomes while not affecting their integrity and functionalities remains a major challenge. Here, a nanofluidic device named “exosome nanoporator (ENP)” is presented for high‐throughput loading of various cargos into exosomes. By transporting exosomes through nanochannels with height comparable to their dimension, exosome membranes are permeabilized...
Interfacial engineering methods have been developed to solve defect issues of perovskite solar cells (PSCs). However, traditional surface passivation has limited effects on eliminating defect‐forming residuals, while secondary grain growth (SGG) is restricted by limited choices of additives and intrinsic properties of perovskites. Here, a pincer strategy of taking advantages of surface passivation...