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Transparent glass has been identified as a vital medium for three-dimensional (3D) optical information storage and multi-level encryption. However, it has remained a challenge for directly writing 3D patterning inside a transparent glass using semiconductor blue laser instead of high-cost femtosecond laser. Here, we demonstrate that rare earth ions doped transparent glass can be used as 3D optical information storage and data encryption medium based on their reversible transmittance and photoluminescence manipulation. The color of tungsten phosphate glass doped with rare earth ions change reversibly from light yellow to blue upon alternating 473 nm laser illumination and temperature stimulation, resulting in the reversible luminescence modulation. The information data could be repeatedly written and erased in arbitrary 3D space of transparent glass, not only showing the ability of the excellent reproducibility and storage capacity, but also opening opportunities in information security. The present work expands the application fields of luminescent glass, and it is conducive to develop a novel 3D data storage and information encryption media.Three-dimensional (3D) optical information can be written in transparent glass using a focused 473 nm laser beam, which will be read by photo-modulation.

One of the major challenges in the rapidly advancing field of nanophotonics is creating high-aspect-ratio nanostructures over large-area with consistent precision. Traditional techniques like photolithography and etching fall short, being limited to fabricating structures with a typical feature size of 100 nm and a maximum aspect ratio of 30:1. To break through these barriers, herein we introduce a strategy, called wet-chemical etching assisted aberration-enhanced single-pulsed femtosecond laser-supplemented nanolithography (WEALTH), for manufacturing large-area deep holey nanostructures. This strategy enables fabrication of nanostructures with diameters as small as 25 nm (exceeding 1/30 of Abbe’s diffraction limit), aspect ratios greater than 10 4 :1, and large-area holey lattices spanning 10 mm 2 with potential scalability up to several cm 2 . We have successfully harnessed this technique to develop cutting-edge applications, including immunoassay biosensing chips, large-area nanophotonic crystals, nanophotonic crystal microcavities, and chiral nanophotonic devices. Moreover, it is adaptable to a wide range of materials, including crystals, glasses, and silicon-based semiconductors. Our approach offers high flexibility in customizing large-area holey nanophotonic structures, paving the way for breakthrough advancements in 3D integrated optics. This work proposes a wet-chemical etching assisted aberration-enhanced single-pulsed femtosecond laser nanolithography, named “WEALTH”, for manufacturing small-size, large-area, deep holey nanostructures, promising for emerging nanophotonic devices.

Developing full‐spectrum photocatalysts with simultaneous broadband light absorption, excellent charge separation, and high redox capabilities is becoming increasingly significant. Herein, inspired by the similarities in crystalline structures and compositions, a unique 2D–2D Bi4O5I2/BiOBr:Yb3+,Er3+ (BI‐BYE) Z‐scheme heterojunction with upconversion (UC) functionality is successfully designed and fabricated. The co‐doped Yb3+ and Er3+ harvest near‐infrared (NIR) light and then convert it into visible light via the UC function, expanding the optical response range of the photocatalytic system. The intimate 2D–2D interface contact provides more charge migration channels and enhances the Förster resonant energy transfer of BI‐BYE, leading to significantly improved NIR light utilization efficiency. Density functional theory (DFT) calculations and experimental results confirm that the Z‐scheme heterojunction is formed and that this heterojunction endows the BI‐BYE heterostructure with high charge separation and strong redox capability. Benefit from these synergies, the optimized 75BI‐25BYE heterostructure exhibits the highest photocatalytic performance for Bisphenol A (BPA) degradation under full‐spectrum and NIR light irradiation, outperforming BYE by 6.0 and 5.3 times, respectively. This work paves an effective approach for designing highly efficient full‐spectrum responsive Z‐scheme heterojunction photocatalysts with UC function. A 2D–2D Bi4O5I2/BiOBr:Yb3+,Er3+ Z‐scheme heterojunction with upconversion (UC) functionality is successfully designed and fabricated. It improves its full‐spectrum photocatalytic activity due to the synergistic effects from UC function, 2D–2D heterointerface, and Z‐scheme charge transfer process. This work paves an effective approach for designing highly efficient full‐spectrum responsive Z‐scheme heterojunction photocatalysts with UC function.

All‐inorganic perovskite quantum dots (QDs) CsPbX3 (X = Cl, Br, and I) have recently emerged as a new promising class of X‐ray scintillators. However, the instability of perovskite QDs and the strong optical scattering of the thick opaque QD scintillator film imped it to realize high‐quality and robust X‐ray image. Herein, the europium (Eu) doped CsPbBr3 QDs are in situ grown inside transparent amorphous matrix to form glass‐ceramic (GC) scintillator with glass phase serving as both matrix and encapsulation for the perovskite QD scintillators. The small amount of Eu dopant optimizes the crystallization of CsPbBr3 QDs and makes their distribution more uniform in the glass matrix, which can significantly reduce the light scattering and also enhance the photoluminescence emission of CsPbBr3 QDs. As a result, a remarkably high spatial resolution of 15.0 lp mm−1 is realized thanks to the reduced light scattering, which is so far a record resolution for perovskite scintillator based X‐ray imaging, and the scintillation stability is also significantly improved compared to the bare perovskite QD scintillators. Those results provide an effective platform particularly for the emerging perovskite nanocrystal scintillators to reduce light scattering and improve radiation hardness. Europium (Eu) doped perovskite QD glass ceramic works as perfect scintillator because of high light yield, superior transparency, and hence significantly suppressed optical crosstalk, as well as the protection of glass matrix. Eventually the record‐high imaging resolution of 15.0 lp mm−1 is achieved, the radiation hardness is also significantly improved.

Stimulus-responsive chromogenic luminescent materials are promising for security and optical storage, yet force-induced color change in inorganic materials remains rarely reported. Here we report a europium tungstate that exhibits mechanochromism, driven by pressure-induced tungsten valence transformation and color center formation. The sample color shifts from orange to black with increasing pressure, accompanied by a linear variation in reflectance. A luminescence modulation rate of 100% for Eu 3+ is achieved due to the strong reabsorption of the black state. Negative photochromism, switching from black/orange to white, occurs under laser irradiation or heating via the reversible phase transition between EuWO 4 and Eu 2 W 2 O 9 . The luminescence modulation is attributed to the synergistic effects of body color reabsorption and nonradiative transitions. Our work demonstrates a robust inorganic material responsive to force, light, and heat, offering versatile functionality for pressure sensing, anti-counterfeiting, and optical storage, and provides a design strategy for multicolor chromogenic materials. Stimulus-responsive materials are interesting for security and data storage. Here the authors report a europium tungstate with reversible multicolor and luminescence modulation under force, light, and heat for sensing and memory applications.

Heated tobacco core material, a key component of heated tobacco products (HTPs), functions as the primary carrier for aerosol, nicotine, and flavor compounds. However, conventional papermaking methods impose inherent limitations that compromise the overall quality of these core materials. This study proposes a novel method for producing reconstituted tobacco (RT) using ultrafine powder (UFP) derived from tobacco raw materials. Comparative analysis revealed distinct physical and chemical properties of UFP-based RT compared to traditional paper-based RT. Specifically, the UFP-based material exhibited reduced thickness (from 0.144 mm to 0.113 mm) and lower air permeability (from 84 CU to 15 CU), while showing significant improvements in tensile strength (from 726 N/m to 965 N/m), elongation (from 2.331% to 2.732%), density (from 0.659 g/cm³ to 0.779 g/cm³), thermal conductivity (from 0.0525 W/(m·K) to 0.0739 W/(m·K)), and smoothness (from 3 S to 13 S). The UFP-based substrate also demonstrated enhanced wettability, which improved coating performance during RT manufacturing. Although conventional chemical indicators were similar between the two materials, the UFP-based core contained 21.2% more volatile flavor compounds. Thermal analysis indicated a higher total weight loss (37.89% for UFP-based vs. 30.40% for conventional material) within the temperature range of 224–378 °C, along with a shift in the maximum weight loss rate from 296 °C to 287 °C for the UFP-based material. These findings highlight the superior functionality and aerosol generation potential of the UFP-processed heated tobacco core material.

Efficient interfacial charge transfer and robust interfacial interactions are crucial for achieving the superior spatial separation of carriers and developing efficient heterojunction photocatalysts. Herein, BiOBr/AgBr S-scheme heterojunctions are synthesized via the co-sharing of Br atoms using an ion-exchange approach, which involves the in-situ growth of AgBr nanoparticles on the surfaces of BiOBr nanosheets. It is revealed that successful construction of a high–quality interface with strong interactions via Br atom bridge between BiOBr and AgBr, which provided a rapid migration channel for charge carriers. In addition, in-situ XPS, Kelvin probe force microscopy, and electron spin resonance evaluations confirmed the establishment of an S-scheme charge-transfer pathway in this tightly contacted heterojunction, which could efficiently prevent the recombination of photogenerated carriers while retaining carriers with a high redox capacity. Finally, the photocatalytic test confirmed that the BiOBr/AgBr heterojunction showed excellent photocatalytic performance and wide applicability thanks to the construction of high quality heterojunction. Overall, this work highlights the importance of rational designing of heterogeneous interfaces at the atomic level in photocatalysis, and contributes to rationally design BiOBr-based S-scheme heterojunctions photocatalytic materials with high quality atomic co-sharing interfaces. The S-scheme BiOBr/AgBr heterojunction with co-sharing Br atoms had been successfully designed, the synergistic effects of the S-scheme heterojunctions and atomic-level interfacial channels result in enhancing the separation and utilization efficiency of photoinduced carriers, and enhancing the photocatalytic. [Display omitted] •A novel BiOBr/AgBr S-scheme heterojunction was established via the interface co-sharing of Br using an ion-exchange method.•Co-sharing Br atom heterointerface promote interfacial charge transfer.•S-scheme heterojunctions promote the migration of carriers and retain photogenerated carriers with high redox potentials.•The photocatalytic degradation of organic pollutants by BiOBr/AgBr S-scheme heterojunctions are significantly improved.

Optical data storage technology has many advantages over the traditional solid-state and magnetic storage technology, such as low cost, multi-dimensional storage, and rewritable capability. Therefore, the optical data storage technology has been in increasing demand for optical storage media. Herein, the photochromic and photoluminescence properties of BaMgSiO4:Bi3+ ceramics were investigated. The BaMgSiO4:Bi3+ ceramics showed reversible photochromism from gray to pink upon alternating the 254 nm ultraviolet light and 532 nm laser irradiation. This is caused by the electron trapping and de-trapping in the oxygen vacancies of the BaMgSiO4:Bi3+ host. This reversible behavior of photochromism was applied to fabricate different patterns on the surface of the BaMgSiO4:Bi3+ ceramics, which exhibited the reversible dual-mode optical information recording and erasing abilities. The photoluminescence reversible modulation of the BaMgSiO4:Bi3+ ceramics was obtained through the photochromic phenomenon. This modification behavior of luminescence could be applied to read-out the recording information in the BaMgSiO4:Bi3+ ceramics. The coloration and bleaching of BaMgSiO4:Bi3+ ceramics were dependent on the time of light stimulation, which facilitated multiplexing encoding. This photoluminescence and photochromism multiplexing of the BaMgSiO4:Bi3+ ceramics enhanced the optical data storage capability.

Designing and optimizing photocatalysts to maximize the use of sunlight and achieve fast charge transport remains a goal of photocatalysis technology. Herein, a full‐spectrum‐response Bi3O4Br:Er3+@Bi2O3‐x core–shell S‐scheme heterojunction is designed with [Bi─O] tetrahedral sharing using upconversion (UC) functionality, photothermal effects, and interfacial engineering. The UC function of Er3+ and plasmon resonance effect of Bi2O3‐x greatly improves the utilization of sunlight. The equivalent layer structure of Bi3O4Br and Bi2O3‐x facilitates the construction of high‐quality S‐scheme heterojunction interfaces with close atomic‐level contact obtained from the [Bi─O] tetrahedral sharing and the resulting Bi3O4Br:Er3+@Bi2O3‐x core–shell morphology, enabled efficient charge transfer. Furthermore, localized temperature increase, induced by photothermal effects, enhanced the chemical reaction kinetics. Benefiting from the distinctive construction, the Bi3O4Br:Er3+@Bi2O3‐x heterojunctions exhibit excellent performance in the photocatalytic degradation of bisphenol A that is 2.40 times and 4.98 times greater than that of Bi3O4Br:Er3+ alone under full‐spectrum light irradiation and near‐infrared light irradiation, respectively. This work offers an innovative perspective for the design and fabrication of full‐spectrum‐response S‐scheme heterojunction photocatalysts with efficient solar energy utilization based on high quality interfaces, UC functionality, and the photothermal effect. Bi3O4Br:Er3+@Bi2O3‐x core–shell S‐scheme heterojunction with [Bi─O] tetrahedral sharing is designed and prepared, that integrating upconversion functionality, photothermal effect, and interfacial engineering. Benefiting from the distinctive construction, the Bi3O4Br:Er3+@Bi2O3‐x heterojunction exhibits excellent photocatalytic performance.

Low‐dimensional halide perovskites are highly susceptible to thermal quenching (TQ) due to strong soft lattice nature. Currently, examples of thermally enhanced NIR luminescence in low‐dimensional materials are very scarce to the knowledge. Herein, the active role of vibronic coupling is manifested through thermal tunability of broadband NIR emission in 0D W4+‐activated Cs2ZrCl6, leading to anti‐TQ behavior ranging from 80 to 613 K. Interestingly, the internal quantum efficiency is dramatically boosted from 55.9% to 92.9% in Cs2ZrCl6: W4+, Ce4+ while retaining zero‐TQ luminescence between 303 and 423 K. Transient‐state spectroscopy reveal the distribution of thermally released charge carriers among the vibronically coupled d‐electronic states of W4+ ion is responsible for excellent thermal stability. Density functional theory calculations confirm that weak transient lattice distortion of isolated [WCl6]2– octahedra in the excited state can combat TQ enabled by Franck–Condon vibronic coupling. Utilizing this thermal‐tolerant characteristic, both bandwidth‐ and lifetime‐based thermometers have been developed with low temperature uncertainties below 0.12 K. Moreover, NIR spectroscopy‐type sensor is presented for quantitative HF gas detection with concentration‐ and temperature‐dependent high sensing response and low detection limit. These findings may provide a vital insight into vibronic coupling‐assisted heat‐favorable NIR emissions in low‐dimensional materials for versatile applications. A vibronic coupling‐assisted way is provided for circumventing thermal quenching related to transient lattice distortion in 0D halide perovskites, and this study offers comprehending electron–lattice interactions in low‐dimensional host–W4+ dopant systems for the development of thermally tunable NIR spectroscopy applications, such as HF gas sensing and thermometry.