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Grain boundaries (GBs)‐triggered severe non‐radiative recombination is recently recognized as the main culprits for carrier loss in polycrystalline kesterite photovoltaic devices. Accordingly, further optimization of kesterite‐based thin film solar cells critically depends on passivating the grain interfaces of polycrystalline Cu2ZnSn(S,Se)4 (CZTSSe) thin films. Herein, 2D material of graphene is...
Non‐small cell lung cancer (NSCLC) is the most common pathological type of lung cancer , accounting for approximately 85% of lung cancers. For more than 40 years, platinum (Pt)‐based drugs are still one of the most widely used anticancer drugs even in the era of precision medicine and immunotherapy. However, the clinical limitations of Pt‐based drugs, such as serious side effects and drug resistance,...
Microwave Absorption Materials
The M‐BaM@N‐reduced graphene oxide (RGO) material displays excellent microwave absorption capacity due to its mesoporous structure, in sites formed from Fe3O4 and N doped reduced graphene oxide. The synergistic effect among these nano‐micro structures realizes efficient energy conversion by weakening the incoming wave to reflected waves with lower intensity and different...
Nanocomposites with hierarchical pore structure hold great potentials for applications in the field of microwave‐absorbing materials because of their lightweight and high‐efficiency absorption properties. Herein, M‐type barium ferrite (BaM) with ordered mesoporous structure (M‐BaM) is prepared via a sol–gel process enhanced by mixed anionic and cationic surfactants. The surface area of M‐BaM is enhanced...
Topotactic Transitions
In article number 2104356, Lei Cao, Oleg Petracic, and co‐workers report the first observation of a novel surface phase in La0.7Sr0.3MnO3‐δ epitaxial thin films during the topotactic transition from perovskite to brownmillerite. Given the anisotropic vacancy channels found in the surface phase, the studies not only provide a deeper understanding of oxygen‐transport behavior...
Oxygen diffusivity and surface exchange kinetics underpin the ionic, electronic, and catalytic functionalities of complex multivalent oxides. Towards understanding and controlling the kinetics of oxygen transport in emerging technologies, it is highly desirable to reveal the underlying lattice dynamics and ionic activities related to oxygen variation. In this study, the evolution of oxygen content...
Cu‐exchanged LTA‐type aluminosilicate catalyst has been considered as an efficient catalyst for the selective catalytic reduction of NOx with ammonia (NH3‐SCR). However, expensive organic structure‐directing agents (OSDAs) and the corrosive fluoride medium are inevitably used to synthesize LTA‐type molecular sieve (high‐silica LTA‐type aluminosilicate and its analogue LTA‐type silicoaluminophosphate...
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