The emergence of the internet of things has promoted wireless communication’s evolution towards multi-band and multi-area utilization. Notably, forthcoming sixth-generation (6G) communication standards, incorporating terahertz (THz) frequencies alongside existing gigahertz (GHz) modes, drive the need for a versatile multi-band electromagnetic wave (EMW) absorbing and shielding material. This study introduces a pivotal advance via a new strategy, called ultrafast laser-induced thermal-chemical transformation and encapsulation of nanoalloys (LITENs). Employing multivariate metal-organic frameworks, this approach tailors a porous, multifunctional graphene-encased magnetic nanoalloy (GEMN). By fine-tuning pulse laser parameters and material components, the resulting GEMN excels in low-frequency absorption and THz shielding. GEMN achieves a breakthrough of minimum reflection loss of −50.6 dB in the optimal C-band (around 4.98 GHz). Computational evidence reinforces GEMN’s efficacy in reducing radar cross sections. Additionally, GEMN demonstrates superior electromagnetic interference shielding, reaching 98.92 dB under THz band (0.1–2 THz), with the mean value result of 55.47 dB. These accomplishments underscore GEMN’s potential for 6G signal shielding. In summary, LITEN yields the remarkable EMW controlling performance, holding promise in both GHz and THz frequency domains. This contribution heralds a paradigm shift in EM absorption and shielding materials, establishing a universally applicable framework with profound implications for future pursuits.

The development of perovskite photoelectric devices with excellent performance is largely dependent on the defects in the perovskite films. To address this issue, a specific drug, leflunomide (LF, C₁₂H₉F₃N₂O₂), was incorporated into the perovskite to reduce defects and improve its photoelectric properties. It is believed that the C=O bond on LF molecule can interact with the uncoordinated Pb²⁺ of the perovskite, thereby reducing non-radiative recombination. This novel approach of incorporating LF into perovskite films has the potential to revolutionize the development of high-performance perovskite photoelectric devices. The trifluoromethyl functional (–CF₃) group on LF can form a protective layer on the surface of the perovskite film, shielding it from water erosion. Moreover, LF can be utilized to alter the nucleation position of perovskite, thus minimizing the number of defects and optimizing the film quality. Consequently, the LF-doped perovskite film displays low trap density and high photoelectric performance. The LF-doped perovskite film showed a trap density of 8.28 × 10¹¹, which is notably lower than the 2.04 × 10¹² of the perovskite film without LF. The responsivity and detectivity of the LF-doped perovskite photodetector were 0.771 A/W and 2.81 × 10¹¹ Jones, respectively, which are much higher than the 0.23 A/W and 1.06 × 10¹⁰ Jones of the LF-undoped perovskite photodetector. Meanwhile, the LF-doped photodetector maintained an initial photocurrent of 86% after 30 days of storage in air, indicating drastically increased environmental stability. This strongly suggests that LF is an effective additive for perovskites utilized in optoelectronic devices with high performance.

Atomic noble metals stand as one of the most advanced catalysts because of their unique properties and interaction with the reactants. However, due to their high activity, noble atomic catalysts tend to aggregate and deactivate in practical application. Moreover, supports aimed to disperse these atomic catalysts often suffer from weak confinement and poor porosity, thus limited the catalytic efficiency of noble atoms. Here, we report the facile encapsulation of atomic noble catalyst in cheap cerous metal-organic framework (Ce-MOF) crystals to create a robust catalyst that could deliver high catalytic performance for the reduction of 4-nitrophenol without decay in long-term cycling test. Specifically, Au atoms encapsulated in Ce-MOF exhibited ultrahigh turnover frequency (TOF) of 131 min^-1 for the reduction of 4-nitrophenol in minutes, consuming only 10% precious metals compared with state-of-the-art catalysts operated under same condition.