Nature Communications
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2026
·
IF 18.1
Hu Xinge,Liu Jinjie,Zhu Zhijie,Liu Shuang,Wang Lei,Cheng Jianjun,Huang Xiong,Li Chaoran,Feng Kai,Zhou Yuxuan,Xu Yuqing,Feng Qianyue,Zhang Binbin,Chen Xiankai,Zhang Liang,Zhang Qingfeng,Wu Bo,Yin Jun,An Xingda,Zhang Xiao-Hong,He Le
Light-mediated electronic spin modulation possesses intriguing potentials for photochemistry, enabling on-demand customization of catalysts towards distinct reactions and catalytic requirements. However, the significant photobleaching of the transient spin transitions as well as their temporal mismatch with slower chemical reaction dynamics substantially hinders its applicability. Herein, we demonstrate light-driven steady-state and on-demand catalyst spin modulation that effectively activates plasmonic catalysis. The rapidly oscillating plasmonic electromagnetic near-field spin-polarizes a low-spin CoFe 2 O 4 catalyst and overcomes the photobleaching to produce stable high-spin states with astounding spin lifetimes >60 μs. The high-spin plasmonic catalyst effectively balances the tradeoff between spin polarization and carrier dynamics. For benchmark light-driven nitrate reduction catalysis, it achieves substantial photo-enhancement in ammonia production rate and selectivity as well as photocatalytic performance driven by sunlight, benefiting from polarization activation of nitrate reactant and preferential reaction pathway modulation. The highly generalized light-mediated strategy opens intriguing new avenues for on-demand and steady-state electronic spin engineering with profound implications for distinct disciplines.
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高影响因子
JOURNAL OF CATALYSIS
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2026
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IF 6
Jie Wang,Feng Gao,Jilei Lin,Chunjuan Zhang,Meiqing Shen,Linghui Kong,Gurong Shen
Ammonia is emerging as a promising carbon-free energy carrier. The electrocatalytic ammonia oxidation reaction (AOR), highly structure-sensitive, exhibits exceptional activity on Pt nanocubes (NCs) with (100) facets. Yet, synthesis methods employing metal carbonyl capping agents inevitably introduce residual metals, whose catalytic effects are often neglected. Here, Pt NCs synthesized with Mo(CO) 6 were found to contain trace Mo both in the bulk and at the surface. Surface Mo species, partially oxidized to MoO x , substantially modify the electronic structure of Pt(100), lowering activation barriers for rate-determining AOR steps and enhancing resistance to nitrogen poisoning. These effects collectively boost AOR performance, enabling a direct ammonia fuel cell with a Pt-154 anode to achieve a peak power density of 26.7 mW cm −2 . These results reveal the overlooked impact of capping-agent-derived contaminants in AOR and point to the deliberate incorporation of heterometallic modifiers as a viable strategy for advanced electrocatalyst design.
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ACS Applied Nano Materials
·
2026
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IF 5.8
Kongfu Ou,Jinju Zheng,Jialong Zhao,Kai Wang,Xuanming Qin,Weiyou Yang,Zhentao Du,Hui Fu
Nontoxic CuGaS2 (CGS) quantum dots (QDs) are promising for next-generation displays due to their unique optical properties. However, their wide photoluminescence (PL) full width at half-maximum (FWHM), arising from intraband defect-state-mediated radiative recombination, hinders compliance with the narrow bandwidth requirements for ultrahigh-definition displays. Herein, we introduce a Ga2S3 (GaS) interlayer strategy via a hot-injection method to mitigate lattice mismatch and interface strains between the CGS core and the ZnS shell. Precisely controlling the GaS shell thickness further promotes structural ordering and suppresses sulfur vacancies (VS), thereby reducing nonradiative recombination and enhancing near-band-edge emission. Under optimized conditions, the as-prepared CGS/GaS/ZnS QDs exhibit narrow-band blue emission with a PL quantum yield (QY) of 44% and an FWHM of 24 nm, which is the narrowest value reported to date for Cu-based QDs. As integrated into solid-state light-emitting diode (LED) devices, the QDs yield narrow emission under various operating currents and demonstrate excellent operational stability. These findings highlight the critical role of multishell structures in controlling the defect states and lattice strain in CGS-based QDs, offering a design strategy for next-generation display materials demanding high color purity.
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ACS Photonics
·
2026
·
IF 6
Hang Xia,Luyao Lv,Xi Ran,Mohan Yuan,Xinzheng Lan
PbS colloidal quantum dots (CQDs) hold great promise in the next generation of low-cost, high-performance short-wave infrared (SWIR) photodetectors. Both the dark current and the spectral response, however, have been hampered by the preparation of semiconductor-grade PbS CQDs. Here, we report high-performance PbS CQD photodetectors by leveraging a monomer-assisted ligand exchange strategy. The resultant PbS CQD films show enhanced defect passivation evidenced by more than 1 order of magnitude increase in their exciton lifetime, which translated into photodetectors with record low dark current and high specific detectivity (D*). For a cutoff wavelength ∼1700 nm, ultralow dark current (21 nA/cm2 at −0.5 V) and a peak specific detectivity (D*) of 8.73 × 1012 Jones were achieved at 1650 nm, which are comparable to commercial InGaAs photodetectors. In addition, the implementation of this approach to large-sized PbS CQDs leads to broadband photodetectors with a cutoff wavelength of ∼2330 nm, a regime previously inaccessible to PbS CQDs. The monolithic integration of PbS CQD photodetectors with a 256 × 256 pixel thin-film transistor readout circuit enables infrared imaging through Si and Ge filters, validating the technology’s potential for broadband imaging applications.
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ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Junru Chen,Xingyu Zhu,Tonghui Zhao,Dongling Geng,Lianhao Huan,Xinyun Yang,Jinheng Li,Yunfeng Deng
Balancing synthesis efficiency, luminescence performance, and environmental stability in lead-free metal halides remains challenging. Here we report the first synthesis of Cu+-doped Cs2ZnCl4 nanocrystals via a rapid microwave-assisted solvothermal method. Structural analyses confirm that Cu+ ions occupy Zn2+ sites within orthorhombic [ZnCl4]2– frameworks, forming Cu+-related self-trapped exciton centers. Under optimized microwave conditions, nanocrystals with an average size of ∼19 nm are obtained, exhibiting cyan emission at 480 nm with a quantum yield of 35.25% and a lifetime of 30.97 μs, attributed to self-trapped excitons. Compared to conventional hot-injection techniques, this approach yields improved morphological uniformity (18.75 ± 0.1 nm) and enhanced photostability, maintaining 70% of initial emission intensity after 50 min of UV irradiation. The multiligand passivation strategy implemented during microwave synthesis effectively inhibits Cu+ oxidation and structural degradation. This work establishes a rapid and scalable synthesis route for high-performance lead-free phosphors, offering a practical pathway toward achieving both superior performance and stability in such materials.
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ACS Applied Nano Materials
·
2026
·
IF 5.8
Shuibo Wang,Zixiang Tong,Yanle Li,Yichao Lin,Jingjing Wang,Ziqi Tian,Hongfeng Yin,Liang Chen
The glycerol electro-oxidation reaction (GEOR) to formate represents an attractive technology for the concurrent production of hydrogen and the valorization of biomass. However, the intricate pathway of GEOR and the high cost associated with noble metal electrocatalysts hinder its progress. Herein, ultrathin CuCoNiW medium-entropy oxide nanosheets (CuCoNiWOx UNS) serve as an effective noble-metal-free catalyst for this transformation. It delivers a high mass activity mass activity of 632.9 mA mgmetal–1, a low potential of 1.0 V vs RHE at 10 mA cm–2, and a formate selectivity of 83.1%, with remarkable stability over 40 h. The high performance is attributed to the distinct roles of each metal within the medium-entropy structure: subsurface W atoms ensure structural stability; Co and Ni sites optimize the adsorption of glycerol and intermediates; and Cu sites promote C–C bond cleavage. The reaction pathway involves the sequential conversion of glycerol to glyceraldehyde, glyceraldehyde to glycolaldehyde/formate, and glycolaldehyde to formate. These findings emphasize the efficacy of implementing medium-entropy structures as a viable strategy for biomass electrooxidation reactions.
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ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Yunping Lang,Xinxuan Yang,Yang Shao,Lin Fan,Xiaoyan Liu,Nannan Yang,Huilian Liu,Fengyou Wang,Jinghai Yang,Lili Yang
Two-dimensional/three-dimensional (2D/3D) perovskite solar cells (PSCs) have attracted considerable attention due to their promising performance and environmental stability. However, conventional in situ grown 2D/3D perovskites form a layered structure with 2D organic spacer layers aligned parallel to the 3D perovskite, impeding out-of-plane carrier transport. Moreover, the distinct cation size between 2D and 3D perovskites triggers ion diffusion at the heterointerface, leading to the formation of a mixed-phase 2D perovskite and increased defect density, which severely limits device performance. To address these issues, we synthesized 2D perovskite quantum dots (QDs) modified with poly(3-hexylthiophene) (P3HT), acting as building blocks, which were subsequently deposited onto a 3D perovskite film to construct novel 2D QDs@P3HT/3D PSCs. This strategy effectively suppresses defect accumulation caused by mixed phases in traditional 2D/3D perovskite. Furthermore, this design facilitates additional vertical carrier transport pathways, alleviating the out-of-plane carrier transport limitation in conventional layered 2D/3D perovskite. As a result, the optimized devices achieve a power conversion efficiency of 25.04% and exhibit remarkable stability, retaining over 93% of their initial efficiency after 1200 h of aging under 85% relative humidity at 25 °C. This work offers a viable strategy to balance efficiency and stability in perovskite photovoltaics.
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ACS Nano
·
2026
·
IF 17.3
Yue Chen,Shiqiang Feng,Juan-Feng Zhu,Nuo Yang,Xiangfu Hu,Dan Xu,Yan Wang,Lijun Hu,Haixia Liu,Youzhi Yang,Weigao Xu,Fang Cheng,Lin Wu,Xue-Jun Wu
Symmetrically branched metal nanostructures with intricate structural features and exceptional physicochemical properties demonstrate a significant potential for diverse applications. Nevertheless, achieving precise morphological control over these nanostructures with adjustable dimensions poses a considerable challenge, especially for stellated icosahedrons (STICs) with 20 orderly arranged branches. Here, we present a template replication strategy for the controllable synthesis of metal STICs with various compositions, featuring high yield, uniformity, and adjustable dimensions. The synthesis relies on fine-tuning the reduction kinetics toward heterogeneous nucleation and growth through optimizing the reduction potential of the metal precursors. Notably, the synthesized Au STICs exhibit tunable localized surface plasmon resonances and scattering spectra by varying their sizes as well as profound surface-enhanced Raman scattering (SERS) activity. Electron energy-loss spectroscopy and numerical simulations confirm the symmetrical distribution of their surface plasmon resonances, enabling the polarization-angle-dependent SERS enhancement. Moreover, the resulting magnetic Ni-NiPx STICs exhibit chain-like self-assembly under magnetic fields. This work offers an approach to the rational synthesis of branched nanostructures with complex and intricate architectures that hold significant promise for applications in SERS and catalysis.
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ACS Nano
·
2026
·
IF 17.3
Sixia Wang,Junyan Li,Yifan Liu,Ruru Zhang,Lei Chen,Zhe Yang,Jianfeng Zeng,Shuwang Wu,Mingyuan Gao
Boron neutron capture therapy (BNCT) has received significant attention due to its effectiveness in treating tumors. Preclinical and clinical studies have sought materials with a high boron content. Meanwhile, imaging-guided BNCT can not only enable the determination of the optimal neutron irradiation time and the required dose but also hold substantial significance for evaluating the therapeutic effects. Herein, iron borate (Fe2B2O5) nanobeams were synthesized via the thermal decomposition method. First, iron borate nanobeams are rich in boron, providing sufficient boron for BNCT. Second, the magnetic properties of the nanobeams enable enhancement of magnetic resonance imaging (MRI) contrast, facilitating the monitoring of the agent’s distribution. The size and morphology of the nanobeams can be tuned by varying the synthesis temperature, time, and precursor concentration. To enhance the colloidal stability and biocompatibility, the iron borate nanobeams were coated with a layer of silica (IBNBs@SiO2). The in vitro and in vivo experiments demonstrate that IBNBs@SiO2 functions as a T1 contrast agent. Furthermore, cells and mice treated with IBNBs@SiO2 followed by thermal neutron irradiation demonstrated the effective suppression of melanoma growth. Therefore, IBNBs have potential for MRI-guided BNCT.
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ACS Nano
·
2026
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IF 17.3
Qiaoli Chen,Hui Jin,Chongzhi Zhu,Tulai Sun,Xiaoqiu Xu,Zhi Wang,Jia Zhao,Yu Han,Jinshu Tian,Zhaoxiong Xie,Xiaonian Li,Yihan Zhu
Catalytic performance of heterogeneous catalysis is inherently limited by the linear scaling relations of normalized binding energies among the adsorbed intermediates. Breaking this limitation would create opportunities in the development of high-performance catalysts. To this end, we propose a framework for breaking the scaling relations by evoking bimodal strain over the Pt catalyst in a model structure dictated by Pt-coated Pt3Zn-PtZn mixed-phase hybrid nanocrystals. Such a hybrid heterostructure simultaneously introduces compressive and tensile strain over the Pt shell arising from distinct interfacial interactions between the Pt shell and Pt3Zn/PtZn intermetallic nanodomains. The bimodal strain allows concurrently facilitated consecutive bond cleavage reactions against O–H and C–H groups in formic acid electro-oxidation, which are bridged by fast surface diffusion of formate species across the Pt surface with minimized energy barrier. The mixed-phase hybrid heterostructure outperforms similar Pt-terminated monophase nanocrystals accommodating unimodal strain of either compressive or tensile types and breaks the well-established activity versus strain volcano relationship.
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ChemPhotoChem
·
2026
·Vol. 10
·期 3
·e202500362
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IF 3
Xianye Wang,Hao Ge,Chao He,Guanying Cao
All-inorganic perovskite quantum dots (QDs) (CsPbX 3 , X = Cl, Br, I) have shown great promise in optoelectronic applications but are severely hindered by their poor environmental stability and photoluminescence (PL) quenching. In this work, we report a novel approach for enhancing both stability and optical performance by insitu growth of CsPbBr 3 QDs within a borosilicate glass matrix, assisted by SrF 2 and Sm 2 O 3 codoping. The introduction of F − ions from SrF 2 modifies the glass network structure, promoting uniform nucleation and growth of QDs. Simultaneously, Sm 3+ doping, through partial incorporation into the CsPbBr 3 QD lattice, passivates surface defects and induces lattice contraction, which enhances quantum confinement effects. At the optimal Sm 3+ concentration of 1 mol%, the PL intensity increases by 332.8%, the photoluminescence quantum yield rises from 22.01% to 37.5%, and the fluorescence lifetime extends from 95.05 to 127.69 ns. The glass encapsulation provides long-term air and water stability, outperforming conventional ligand-capped QDs. Moreover, the developed materials were successfully applied in high-brightness green and white light-emitting diodes, achieving wide color gamut coverage (up to 129.4% NTSC), and demonstrated strong potential in forensic fingerprint visualization. These results provide a new pathway for developing stable, multifunctional perovskite-based optoelectronic materials. Graphical This study demonstrates a dual strategy of F − /Sm³ + codoping and glass encapsulation to significantly enhance the luminescence performance and stability of CsPbBr 3 quantum dots. Optimal Sm³ + doping (1 mol%) yields a 332.8% increase in photoluminescence intensity, improves quantum efficiency from 22% to 37.5%, and extends fluorescence lifetime to 127.69 ns. The glass matrix provides exceptional environmental stability, retaining 78.65% initial luminescence after 50 days in air. Resulting light-emitting diode devices achieve a wide color gamut covering 129.4% of the NTSC standard.
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Nanoscale
·
2026
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IF 5.2
Le Luo,Xiaoming Mo,Yusheng Song,Zhentao Du,Sheng Cao,Jinju Zheng,Bingsuo Zou,Jialong Zhao
Quantum-confined CsPbBr3 nanoplatelets (NPLs) are appealing candidates for ultraviolet (UV)/blue photodetectors due to their strong excitonic binding energy and large absorption coefficient. However, the inherent soft lattice and surface defects of CsPbBr3 NPLs lead to poor operational stability, limiting their practical applications. Here, we report an A-site alloying strategy that enhances the structural rigidity and defect formation energy of CsPbBr3 NPLs. The strategy synergistically employs short-chain tetrolic acid (TLA) ligands to passivate uncoordinated Pb2+ ions and formamidinium (FA+) cations to compensate for Cs+ vacancies. This dual repair strategy enhanced both the conductivity and UV irradiation stability of CsPbBr3-based NPLs. As a result, the self-powered UV photodetectors based on Cs0.73FA0.27PbBr3-TLA NPLs exhibited a responsivity of 89 mA W-1, a specific detectivity of 3.99 × 1012 Jones, and an on/off ratio approaching 106 at 0 V bias. Even after 30 days of ambient storage, the device maintained excellent photoresponse and a high specific detectivity of 1.73 × 1012 Jones. Clear images obtained with a custom-built 2D imaging system corroborate the fast response and excellent stability of the device. These results underscore the efficacy of the combined lattice and surface engineering approach for realizing high-performance, durable perovskite NPL-based UV photodetectors.
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