ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Jiejun Ren,Boheng Dong,Yu Liao,Longyun Liu,Churen Zhang,Xiaopeng Zhou,Huiping Liu,Fan Liu,Liangjun Chen,Yuhua Wang
Perovskite nanocrystals (NCs) are highly attractive for high-definition displays. And yet, the weakly bound conventional surface ligands on perovskite NCs leads to the poor processibility, impeding their practical application. Herein, bis(2-methacryloxyethyl)phosphate (BMP) was employed as a functional ligand to prepare BMP-modified CsPbBr 3 (BMP-CPB) NCs with exceptional optical properties and photo-crosslinking capability. The phosphate group strongly coordinates with the surface Pb atoms, while the methacrylate groups undergo photo-crosslinking reaction. Upon ultraviolet light irradiation, free radicals initiate addition reactions across the C═C bonds of BMP ligands, ultimately leading to the formation of a 3D cross-linked polymer network. Accordingly, BMP-CPB NCs show high processability compatible with photopatterning, screen printing, and 3D printing. The superior processibility and outstanding optical properties endow them with great potential in optoelectronic devices, the BMP-CPB-based light-emitting diodes (LEDs) achieved a maximum luminance of 51181.04 cd/m 2 and an external quantum efficiency (EQE) of 18.6%. The BMP-CsPbX 3 -based white LED emits bright white light, achieving a high luminous efficiency of 58.6 lm/W and a wide color gamut covering 124% of National Television System Committee (NTSC) standard. Taking WLED array as backlight source, the constructed liquid-crystal display (LCD) prototype device demonstrates the significant potential of BMP-CPB NCs in high-quality display technologies.
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ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Li Li,Yidong Li,Yongjie Wang,Faling Ling,Zhiyu Yang,Sha Jiang,Guotao Xiang,Peng Du,Xianju Zhou,Dengfeng Li
Flexible scintillator screens with excellent stability and high spatial resolution are crucial for non-planar X-ray imaging applications. Lead-free rare-earth halide double perovskites (DPs) have emerged as formidable contenders in the scintillator field due to their unique advantages, environmental friendliness, high quantum efficiency, facile synthesis, and tunable emission wavelength etc. Herein, Nd 3+ -doped Cs 2 NaScCl 6 (CNSC) micron crystal with a high near-infrared (NIR) emission quantum efficiency of 76% were successfully synthesized using a simple hydrothermal method. The systematic optical characterization unveiled, for the first time, anti-thermal quenching effect induced by Nd 3+ doping in DPs. Subsequently, large-area, flexible CNSC: Nd 3+ @PDMS scintillator for X-ray imaging were developed, demonstrating excellent mechanical stability (Without attenuation after 5000 bendings), ultra-high spatial resolution (24 lp/mm), and exceptional operational stability (The signal intensity was enhanced after continuous irradiation). These research results not only enhance the understanding of anti-thermal quenching in DPs, but also promote the development of NIR high-efficiency ultra-flexible scintillator.
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SEPARATION AND PURIFICATION TECHNOLOGY
·
2026
·
IF 9.1
Lihan Liu,Yuhan Guo,Yuxin Wang,Senjian Han,Lina Xu,Zengyu Ma,Shiqiang Wang,Tianlong Deng,Zhenyu Liao
Zinc ferrocyanide (ZnFC) composites exhibit high selectivity for cesium, but conventional bulk forms suffer from slow mass transfer. In this work, ZnFC was anchored onto exfoliated α-phosphazene ( E -ZrP) nanosheets via an in-situ growth method to construct ZnFC@ E -ZrP composites, which were further fabricated into ZnFC@E-ZrP/PSf adsorption membranes. The two-dimensional E-ZrP support inhibited ZnFC agglomeration and enhanced Cs + mass transfer through shortened diffusion paths and a surface P–OH-induced electronegative field. Experimental results indicated that ZnFC@ E -ZrP exhibited Cs + adsorption properties significantly surpassing that of the α-ZrP support, along with good acid-base stability and recyclability. The corresponding membrane combined rapid transport from E -ZrP with precise capture from ZnFC, achieving adsorption equilibrium within 5 min in filtration and maintaining >98% Cs + recovery from geothermal brine under high ionic competition. The strategy demonstrated in this work enables the design of efficient materials for rapid cesium separation.
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Nature Communications
·
2026
·
IF 18.1
Huang Tao,Wang Bingzhen,Yang Lina,Niu Quan,Zou Bingsuo
Developing highly efficient lead-free near-infrared (NIR) phosphors with strong thermal stability is a key challenge in material design and optoelectronics applications. Here, a machine-learning (ML) guided co-doping strategy to construct a broadband NIR-emitting phosphor, Cs 2 Zr(Cl 0.46 Br 0.54 ) 6 :12%Mo 4+ /3.6%Sb 3+ (SM-CZCB) is reported, achieving record-high internal and external quantum efficiencies of 92.4% and 65.9% at 920 nm, respectively. Guided by ML, Sb 3+ and Br - were selected to co-dope and synergistically enhance energy transfer through the spin-orbit coupling, d-d correlation, and lattice distortion to enhance NIR emission of Mo 4+ . Notably, a [SbCl 6 ] 3+ -[ZrCl 6 ] 2- -[MoCl 6 ] 2- sequential energy transfer chain form a near-resonant configuration to reach the emission centers. The fabricated NIR light-emitting diode using SM-CZCB exhibits a record-high power conversion efficiency of 27.07% with an operational T 50 exceeding 4000 hours at 450 nm excitation. Moreover, the AI-enhanced biomedical imaging was demonstrated using NIR light with high-resolution. This marks the integration of AI-guided material design with practical AI-enhanced medical imaging.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Ziyao Wang,Yang Li,Hui Li,Shengtao Ren,Yangai Liu
The growing demand for high-level information security necessitates advanced photonic materials with programmable, multidimensional optical responses. However, conventional research predominantly optimizes the performance of static, predefined luminescent centers, leaving the dopant-programmed switching of dominant radiative pathways largely unexplored. Herein, we propose and demonstrate a novel strategy of spectrally camouflaged switching of the dominant radiative pathway within CsCdCl 3 perovskite microcrystals via a sequential Zr 4+ /Mn 2+ doping protocol. Zr 4+ initially acts as a structural modifier to tailor lattice strain and optimize self-trapped excitons (STEs) as an energy donor. The subsequent introduction of Mn 2+ drives a highly efficient (with an apparent efficiency >97.6%) energy transfer, covertly shifting the dominant emission pathway from STE recombination to the Mn 2+ 4 T 1 → 6 A 1 transition. While both the steady-state and persistent luminescence colors remain unchanged in the orange region, the internal quantum efficiency increases to 99.4%, accompanied by a fundamental reconfiguration of carrier dynamics. Exploiting this hidden photophysical transformation, we construct a dynamic optical information storage platform where the underlying luminescence mechanism itself serves as an invisible, advanced encryption dimension. This transition from conventional property tuning to mechanism programming establishes a robust material design principle for next-generation anti-counterfeiting technologies. Inspired by the traditional Chinese art of ‘Face-Changing’, a novel strategy of spectrally camouflaged luminescence mechanism switching is demonstrated in CsCdCl 3 :Zr 4+ /Mn 2+ microcrystals. By actively switching the internal emission engine from self-trapped excitons to Mn 2+ d-d transitions under an identical orange color, a high-security multi-dimensional optical encryption platform is achieved. Download: Download high-res image (415KB) Download: Download full-size image
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JOURNAL OF SOLID STATE CHEMISTRY
·
2026
·
IF 3.2
Longjie Zhang,Chonghui Qi,Huangyao Chen,Xiang Guo,Ruirui Cui
Lead-free double perovskites (LFDPs) have attracted substantial research interest owing to their unique photoluminescence characteristics, low toxicity, and structural versatility. However, achieving efficient single-lattice white-light emission remains a formidable challenge due to the intrinsic difficulty of spectral tuning and the trade-off between luminescence efficiency and color quality in single-host systems. To address this issue, we developed a triple-doped rare-earth double perovskite system Cs 2 NaScCl 6 : Sb 3+ , Tb 3+ , Sm 3+ . Through a competitive energy transfer design, we achieved fine control over energy migration from Sb 3+ to Tb 3+ and Sm 3+ , enabling precise spectral modulation simply by adjusting the dopant concentrations. Steady-state and time-resolved photoluminescence (PL) spectroscopy clearly identified three energy transfer routes: Sb 3+ → Tb 3+ , Sb 3+ → Sm 3+ , and Tb 3+ → Sm 3+ , which collectively contribute to the tunable white-light emission. The optimized material exhibits outstanding thermal stability, retaining 88.1% of its initial emission intensity at 473 K. The Cs 2 NaScCl 6 : 1%Sb 3+ , 40%Tb 3+ , 8%Sm 3+ single crystal achieves a photoluminescence quantum yield (PLQY) of 40.90%. When fabricated into WLED devices, this phosphor delivers a color rendering index (CRI) of 85.1, a correlated color temperature (CCT) of 4278 K, and near-ideal CIE coordinates of (0.336, 0.306). Collectively, this work not only presents a high-performance single-host white-light emitter for solid-state lighting applications, but also offers a viable energy transfer design strategy for rare-earth-activated LFDPs, thereby advancing the development of eco-friendly perovskite materials for white-light-emitting devices.
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MATERIALS RESEARCH BULLETIN
·
2026
·
IF 5.8
Yunong Wang,Yiting Wang,Bo Jiang,Ji Sun,Huiting Mao,Jindou Huang,Wei Zhang,Ruinian Hua
A dual-channel energy transfer in Ag + /Er 3+ co-doped Cs 2 NaBiCl 6 was revealed. • The energy transfer from STE to Er 3+ is a phonon-assisted cooperative foster energy transfer. • White LEDs with a single Ag + /Er 3+ co-doped Cs 2 NaBiCl 6 phosphors were achieved. Herein, the photoluminescence of hydrothermally synthesized Cs 2 NaBiCl 6 is controlled by Ag + and Er 3+ co-doping, and a dual-channel ET mechanism is proposed. When doped with Ag + , the photoluminescence of Cs 2 NaBiCl 6 increases by as much as 24.7 times. We have discovered that Ag + can reduce the band gap width, break the parity symmetry of the transition, and significantly enhance the strength of STE. Futher, new luminescence center was introduced in Ag + /Er 3+ co-doped Cs 2 NaBiCl 6 . Femtosecond transient absorption (fs-TA) spectroscopy data indicate that there exists a dual-channel ET process from (Ⅰ) the host to Er 3+ and from (Ⅱ) the host to the self-trapping exciton state and then back to Er 3+ . As the bridge of ET, Ag + alters the local symmetry of the Er 3+ site, significantly facilitating the energy transfer from STE to Er 3+ , and increasing the probability of Er 3+ radiation recombination. Futhermore, white LEDs with a single host phosphors have been achieved. Download: Download high-res image (145KB) Download: Download full-size image To address the problem of low photoluminescence efficiency in double perovskite materials, Ag + and Er 3+ were doped into Cs 2 NaBiCl 6 to enhance luminescence. Doping with Ag + increased the photoluminescence of Cs 2 NaBiCl 6 by 24.7 times. The energy transfer mechanisms among ns 2 metals, transition metals, and rare earth ions were investigated, and a dual-channel energy transfer mechanism was proposed. Furthermore, white LEDs using a single phosphor have been achieved, with color coordinates of (0.327, 0.338). This work provides a new perspective for designing novel double perovskites to realize unique dual-channel energy transfer and white LEDs.
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CORROSION SCIENCE
·
2026
·
IF 10.3
Chengyu Wang,Ming Cheng,Haofeng Luo,Tao Jiang,Wentao Zhou,Yafei Wang
Molten salts are widely used in high-temperature nuclear systems, yet their interactions with structural alloys, particularly under the influence of fission product species, are still not fully understood. In this study, the corrosion behaviors of Fe-based 316L stainless steel (316L SS) and Ni-based Inconel 600 alloy were investigated in LiCl-KCl eutectic molten salt at 500 °C, under the influences of thermodynamically active lanthanide and less-active lanthanide/non-lanthanide fission product species. The results reveal that both active and less-active lanthanide species enhance the corrosion of alloys in molten salt, whereas less-active non-lanthanide barely affect the alloy’s corrosion as thermodynamically expected. The unexpected corrosion enhancement caused by less-active lanthanide species (Ce 3 + , La 3+ , Nd 3+ , Sm 3+ , Pr 3+ , Gd 3+ , and Y 3+ ) is attributed to the formation of lanthanide oxychlorides (LnOCl, Ln represents less-active lanthanide species), driven by trace oxygen present in Ar atmosphere. Furthermore, the 316L SS was found to exhibit better corrosion resistance than Inconel 600 alloy in LiCl-KCl molten salt containing fission products, despite Ni-based alloys being widely regarded as more corrosion-resistant than Fe-based alloys in molten salt environments. This study systematically investigates, for the first time, the effects of fission products on both Fe-based and Ni-based alloys in molten salt, providing a comprehensive understanding of the behavior of structural alloys for molten salt applications in the nuclear industry.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Fei-Fei Wang,Yu-Hang Li,Ze-Jia Shen,Ze-Yu Wang,Lin Cheng,Shuaihua Wang,Kai-Yao Wang
Construction strategy for selenide exchanger by integrating T3 supertetrahedral clusters. • Synergistic effects of Se component and microporosity on the adsorption kinetics enhancement. • Efficient removal (up to 99.99%) of Cs + and Sr 2+ by column and ultrathin membrane. • High selectivity for Cs + and Sr 2+ in presence of excess coexisting cations and anions. • Great pH (3–12)/irradiation resistance, high exchange selectivity, and facile elution. Elimination of long half-lived 137 Cs + and 90 Sr 2+ hazards through adsorption technique is critical for environmental protection and human health. However, traditional adsorbents are limited in radioactive wastewater treatment by slow kinetics, weak anti-interference, and poor practical applicability. Herein, an indium selenide adsorbent Na 6 In 10 Se 18 ·11.5H 2 O ( InSe-1Na ), with an anionic framework constructed from corner-sharing T3 supertetrahedral clusters, was synthesized using a “assembly-activation” strategy. The soft basic Se component and the cluster-induced microporosity synergistically endow InSe-1Na with remarkable Cs + /Sr 2+ enrichment capacity. It exhibits ultra-fast adsorption kinetics, removing 97.84% of Cs + within 5 min and 99.84% of Sr 2+ within 20 min. The corresponding second-order rate constants ( k 2 ) are 10.241 and 0.335 g mg −1 min −1 , respectively, rendering it the fastest selenide adsorbent. InSe-1Na shows structural stability over a broad pH range of 3–12, with maximum distribution coefficients ( K d ) of 1.02 × 10 5 mL g −1 for Cs + and 8.29 × 10 5 mL g −1 for Sr 2+ . The maximum adsorption capacities ( q m ) of Cs + and Sr 2+ are 252.10 ± 3.77 and 86.49 ± 3.71 mg g −1 , respectively. It exhibits resistance to coexisting ions, maintaining a removal rate ( R ) ≥ 94.73% in the presence of 10 mmol L −1 Na + . Moreover, the rapid kinetic response facilitates its application in column ( R = 99.65%–99.99%) and membrane ( R = 98.95%–99.98%, 0.40 s contact time) filtrations for mixed Cs + and Sr 2+ flow. Given its straightforward synthesis, β/γ irradiation tolerance, and easy elution, InSe-1Na represents a promising adsorbent for radioactive decontamination. Deep purification of nuclear contaminated water containing radioactive 137 Cs + and 90 Sr 2+ is promisingly achieved by a supertetrahedral-cluster-constructed indium selenide ion exchanger, Na 6 In 10 Se 18 ⸱ 11.5H 2 O ( InSe-1Na ), whose soft Se component and microporosity endow this material with top-ranked adsorption kinetics (even in suction filtration conditions with 0.40 s contact time), high capacities, superior selectivity, good resistance to acid/base/coexisting ions, and remarkable column/membrane performances. Download: Download high-res image (131KB) Download: Download full-size image
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ACS Photonics
·
2026
·Vol. 13
·期 15
·4374-4386
·
IF 6
Zhou Yuqi,Zhai Yalin,He Tao,Wan Peng,Kan Caixia,Shi Da Ning,Kong Fanqiang,Han Long,Jiang Mingming
The monolithic integration of solar-blind ultraviolet
polarization
sensitivity and high-energy X-ray detection into a single semiconductor
platform is urgently demanded for next-generation multimodal smart
sensing, yet remains unattainable with mainstream ultrawide bandgap
materials (e.g., Ga 2 O 3 , hBN, diamond, and others)
due to their inherent trade-offs among bandgap, stopping power, and
anisotropy. Here, we break this deadlock by developing lead-free layered
CsAgCl 2 perovskite single crystals via a well-controlled
chemical solution deposition method. This material features an ultrawide
indirect bandgap of 4.29 eV, a Cs/Ag heavy-atom constituent,
and pronounced optical anisotropy. The developed Ag/CsAgCl 2 /Ag device architecture delivers a comparable polarization-sensitive
solar-blind ultraviolet photodetector with a dichroic ratio of 4.6,
responsivity of 560 mA/W, specific detectivity of 2.3 ×
10 13 Jones, and fast response (300/270 μs)
at 250 nm, outperforming all reported leadfree perovskite deepultraviolet
detectors. Concurrently, leveraging a large mobility–lifetime
product (μτ ∼ 2.8 × 10 –4 cm 2 V –1 ) and ultralow dark current
drift (1.25 × 10 –4 μA cm –1 s –1 V –1 ), the same device showcases
ultrahigh sensitivity of 10563 μC·Gy –1 ·cm –2 , incredibly low detection limits of
28.7 nGy air ·s –1 , and high-resolution
imaging at 50 V for 50 keV X-ray photons, rivaling commercial
directconversion materials. Boasting outstanding ambient stability
and ultralow dark current, this CsAgCl 2 platform uniquely
unifies two incompatible functions, delivering an eco-friendly, transformative
paradigm for compact multimodal sensing with profound scientific and
practical implications.
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Science China-Chemistry
·
2025
·
IF 9.7
Jiang Lin-Tao,Chen Jun-Long,Zhang Ming-Shu,Jiang Xiao-Ming,Liu Bin-Wen,Guo Guo-Cong
Achieving the second-order nonlinear optical (NLO) effect necessitates a non-centrosymmetric (NCS) structure, which is a prerequisite, but obtaining it effectively remains greatly challenging. In pursuit of this, a strategy known as “dimensionality elevation” has been operated to create a high-dimensional NCS framework based on a low-dimensional centrosymmetric (CS) structure. Concretely, the acentric [CdS 4 ] tetrahedral unit serves as a linkage point in the zero-dimensional (0D) [Si 4 S 10 ] T2-supertetrahedra, leading to the formation of the 3D NCS rigid sulfide, Cs 2 CdSi 4 S 10 ( 1 ), which exhibits moderate second-harmonic generation (SHG) effect (0.5 × AgGaS 2 @1.91 μm). To enhance the SHG coefficient, a structural modification has been made by replacing the Si-based framework with a Ga-based one and re-employing the “dimensionality elevation” strategy. This alteration prompted the tetrahedral [CdS 4 ] units to connect with 0D T2-supertetrahedral [Ga 4 S 10 ] motifs, creating the 3D NCS salt-inclusion chalcogenide [Ba 4 Cl 2 ][CdGa 4 S 10 ] ( 2 ). Notably, compared with 1 , compound 2 not only demonstrates an increased SHG response (1.3 × AgGaS 2 @1.91 μm) but also retains a broad band gap (3.74 eV for 1 and 3.50 eV for 2 ) for exceptional laser-induced damage thresholds (LIDTs, 9.3 × and 7.3 × AgGaS 2 @1.06 μm for 1 and 2 , respectively), suggesting that compound 2 is an advanced infrared NLO material. This research pioneers new pathways for discovering NCS NLO materials through the “dimensionality elevation” strategy.
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Nanomaterials
·
2025
·Vol. 15
·期 13
·1002
·
IF 4.3
Yu-Lin Hu,Yi-Lin Zhu,Shi-Ying Gu,Jia-Qing Xu,Zhi-Xing Gan,Chuan-Guo Shi
Mn2+doped metal halide that can be grown by a facile solution reaction is a promising low-cost afterglow material. However, the afterglow mechanism is still elusive. Using a facile method to modulate afterglow time is still to be explored. In this work, we reveal that the afterglow of Cs2Na0.2Ag0.8InCl6:y%Mn can be significantly modulated by Mn2+concentration. We propose that replacing Ag+with Mn2+leads to the appearance of interstitial Ag+, which temporally store the photogenerated electrons (Ag++e−→Ag). After the removal of excitation, the gradual recombination between residual holes and stored electrons [h++Ag++e−→hν+Ag+] explains the afterglow. However, excessive Mn2+doping at interstitial sites does not bring about more interstitial Ag+but instead introduces nonradiative traps. Therefore, as the Mn2+concentration increases, the afterglow time increases from 350 s to 530 s and then decreases to 230 s, reaching a maximum at y = 40. Thus, a dynamic optical information storage and encryption application is demonstrated based on the modulated afterglow time.
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