ACS Nano
·
2026
·
IF 17.3
Yutao Yang,Feifei Chen,Xiachu Xiao,Jianru Wang,Xiang Zhang,Borui Jiang,Yuxiang Xin,Zhitong Zhou,Zhengzheng Liu,Jiang Tang,Jiajun Luo,Zhuolei Zhang
Soft-lattice nanocrystal photon management hinges on controlling relaxation branching, diverting excitations from interfacial losses into radiative pathways. CsPbCl3:Yb3+ quantum cutting benchmarks this, but is still constrained by surface trapping, suboptimal Yb-pair branching energetics, and limited thermal/environmental stability. Here we implement a (2-bromoethyl)trimethylammonium bromide (BETAB)-enabled passivation strategy with annealing-triggered gradient halide reconstruction. BETAB replaces OA/OAm to reduce surface losses, while mild annealing activates ligand-associated Br– as a local reservoir to drive Br– in-diffusion with Cl– counter-migration, writing a continuous radial Cl/Br gradient (Br-rich interior). The graded halide landscape suppresses interfacial quenching and creates a radial band-edge bias that funnels excitations into the QC pathway, accelerating exciton-to-Yb3+ transfer. Consequently, QC PLQY increases stepwise from 84.7% (pristine) to 125.4% (BETAB-treated) and 155.2% (annealed). Integrated as spectral-conversion films on Si photodetectors, the treated NCs enable 200–1100 nm detection with responsivity up to 0.5 A W–1, EQE of 64.17%, and D* >1.02 × 1012 Jones (300–1100 nm) and 4.8 × 1011 Jones (200–300 nm), delivering clear ultrabroadband imaging in 7 × 7 arrays. The reconstructed NCs further show ATQ-like behavior (134% at ∼333 K) and improved aging stability (86.1% retention after 60 days vs 29.2% for pristine). Overall, ligand-enabled gradient writing reroutes relaxation for robust photon management.
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Food Bioscience
·
2026
·
IF 6.2
Huilin Zhao,Zhaoxuan Fan,Shan Shang,Donghong Liu,Lei Qin,Xuhui Huang
Replicating the authentic flavor profile of cell-cultured seafood remains a critical bottleneck, as current models predominantly based on monocultured myoblasts inherently lack the essential lipid-derived flavor precursors found in natural fish. This study constructed a cell-cultured fish meat (CM) model to investigate the flavor formation mechanisms driven by thermal interactions between the non-lipid cellular framework and exogenous fatty acids (oleic acid: OA; docosahexaenoic acid: DHA). Utilizing electronic nose and HS-SPME-GC-MS coupled with partial least-squares regression (PLS-R), the study revealed distinct flavor modulation pathways. The addition of OA significantly promoted the generation of methyl-pyrazine and alkyl furans, suggesting that OA oxidation intermediates triggered Strecker degradation with matrix proteins to construct a “lipid-derived aroma profile” backbone. Conversely, DHA specifically enriched unsaturated aldehydes and ketones (e.g., 4-heptenal, (E,E)-2,4-heptadienal) alongside 5-ethyl-2-methyl-pyridine, effectively imparting the characteristic “seafood-like aroma”. Furthermore, spatial separation in PLS-R demonstrated that the CM matrix exhibited a non-additive interaction with lipids:it specifically directed OA oxidation intermediates toward Strecker degradation to construct a lipid-derived aroma backbone, while selectively entrapping highly reactive DHA-derived unsaturated aldehydes to retain a balanced seafood-like profile. The cellular network acted as interactive microenvironments, exhibiting a modulating the release effect on highly reactive secondary oxidation products. This study elucidated the differential volatile generation pathways and controlled-release behaviors between the cellular matrix and specific lipids, providing theoretical insights into the targeted flavor modulation of thermally processed cell-cultured seafood.
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PROGRESS IN SOLID STATE CHEMISTRY
·
2026
·
IF 9.7
Mengping Wang,Shiyu Wang,Xinxin Liu,Zhenyi Yu,Guangjiu Zhao
Green antisolvents and ligands synergistically direct perovskite phase evolution. • Spectroscopic analyses reveal solvent-dependent ligand dissociation mechanisms. • Distinct phases enable antibacterial and dynamic anti-counterfeiting applications. In this work, we propose a ligand–antisolvent synergistic regulation strategy to synthesize Cs–Pb–Br materials with dual antibacterial and encryption functions. An amphiphilic ligand derived from 5-bromovaleric acid (5-BVA) and oleamide (OAm) is employed with two green antisolvents (water and ethanol). The use of water as an antisolvent yields high-purity CsPbBr 3 quantum dots (QDs) with water stability exceeding 50 days. These QDs exhibit potent antibacterial activity through electrostatic interactions with bacterial cell membranes achieving up to 99.8% inhibition at a low concentration of 120 μg/ml. In contrast, ethanol as the antisolvent leads to a mixed CsPbBr 3 /CsPb 2 Br 5 phase. This mixed phase exhibits water-triggered fluorescence activation originating from CsPbBr 3 recrystallization alongside a thermal quenching effect that enables reversible on–off fluorescence switching upon cooling–heating cycles. This water-induced fluorescence activation effect combined with reversible thermal quenching properties enables multi-level encryption. Ultimately this ligand-antisolvent synergistic regulation strategy not only offers theoretical guidance for the rational and tailored design of multifunctional perovskites but also establishes a foundation for their practical applications in complex optoelectronic and biological environments.
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Advanced Optical Materials
·
2026
·
IF 7.2
Wanling Mao,Siyong Wang,Li Zhang,Yujia Luo,Yuyao Feng,Yunhai Xiong,Yixuan He,Yuhui Dong,Yousheng Zou,Haibo Zeng
Low-toxicity quantum dots (QDs) based on group I-III-VI elements have attracted significant interest due to their color-tunability for wide-gamut displays. Nevertheless, the width of the blue-emitting peak remains considerably broader than those of the green and red counterparts, resulting in degraded color purity, restricted gamut coverage, and diminished energy efficiency in blue-emitting devices. Here, we report spectroscopically pure blue QDs (λ = 465 nm) with an ultranarrow FWHM of 36 nm, achieving excellent color purity for blue-emitting I-III-VI QDs. Employing a two-step hot-injection method with precise thickness control, this approach enables epitaxial growth of an atomically thin 0.35 nm thick AgGaS 2 (AGS) shell on Ag-In-Zn-Ga-S cores. Using in situ HRTEM on systematically synthesized AIZGS@AGS architectures, we directly captured the controlled epitaxial growth of this shell, revealing a clean core–shell interface. The high-crystallinity AGS shell passivates surface defects, narrowing the PL spectrum from 103 to 36 nm. Moreover, systematic In:Zn ratio tuning further affords AIZGS@AGS QDs that exhibit narrow linewidths and continuous spectral coverage across the blue region (465–509 nm). Our study provides an effective approach for high-quality I-III-VI blue QDs, demonstrating significant potential for advanced display applications.
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Advanced Optical Materials
·
2026
·
IF 7.2
Chengyang Liang,Lin Zhang,Delin Kong,Mengqi Zhang,Zhitao Xue,Jianjun Tian
The elimination of redundant surface organic ligands on perovskite quantum dots (PQDs) is a critical procedure for the construction of high-efficiency light-emitting diodes (LEDs). Nevertheless, such ligand removal readily induces undesirable phase transition owing to the intrinsically unstable surface configuration of PQDs, which severely hinders the large-scale manufacturing of high-performance LEDs. Herein, we develop tetrabutylammonium hexafluorophosphate (TBAPF 6 ) surface reconstruction of CsPbI 3 PQDs during di-isooctylphosphinic acid (DSPA) assisted synthesis and purification. The short chain DSPA has strong coordination with PQDs, while TBA + ions are compensated for Cs + surface vacancies, and PF 6 − ions combine onto Pb 2+ sites to stabilize the structure through filling I − vacancies. This strategy substantially suppressed phase transformation during synthesis and purification, thereby enhancing the moisture and oxygen stability of the PQDs to extend the processing window of device fabrication. LEDs fabricated using freshly stored PQD within 7 days showed negligible efficiency degradation, yielding a peak external quantum efficiency (EQE) over 25%. Notably, even after long-term storage for 30 days, the assembled LEDs still achieved a high EQE of more than 22%. Accordingly, this strategy provides a viable pathway for the scalable preparation of wide-processing-window LEDs.
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Polymers
·
2026
·Vol. 18
·期 16
·1981
·
IF 5.8
Dongmei Xie,Xiaodi Mao,Hongyu Li,Xudong Chen,Yuting Li,Hongzhi Liu
To demonstrate the applicability of the “dynamic self-vulcanization of bifunctional monomers” strategy for toughening polylactic acid (PLA), hydroxylated oleic acid (HOA) was synthesized via UV-initiated thiol–ene click chemistry, using oleic acid as the starting material. In the presence of an excess molar quantity of hexamethylene diisocyanate (HDI), the dynamic self-vulcanization of bifunctional monomers was employed to design PLA blends featuring extraordinary impact toughness. During the one-pot melt compounding, in situ formation and self-crosslinking of flexible poly(urethane-co-amide) (HPUA) toughening phase, together with its reactive compatibilization with the PLA matrix, were simultaneously accomplished. The aggregation of the HPUA domains enabled the morphological transformation of the PLA blend from a sea-island structure to a partially or fully bi-continuous one. At HPUA contents of 20 wt% or higher, the blend exhibited a bi-continuous morphology with a crosslinked HPUA network, attaining a notched impact strength exceeding 110 kJ/m2and an elongation at break above 200%. In particular, when the HPUA content reached 20 wt%, the resulting PLA blend exhibited optimal impact toughness, with a notched IS of 132.1 kJ/m2(30.7 times that of neat PLA). The primary toughening mechanism was determined to be the internal cavitation of the HPUA domains, which subsequently initiates the yielding of the surrounding PLA matrix. This study proposes an applicable and facile method for fabricating polymer materials that possess excellent impact toughness.
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ACS Nano
·
2026
·Vol. 20
·期 34
·23716-23728
·
IF 17.3
Zeng Qing,Tamtaji Mohsen,Zhou Rui,Zhou Tao,Guo Zhengxiao,Chen GuanHua,Tse Edmund C. M.
Electrocatalytic oxidation of glycerol toward high-value
C3 products
on Pd-based catalysts presents a promising strategy for upgrading
and converting glycerol. However, C3 intermediates often adsorb too
tightly on Pd-based catalyst surfaces during glycerol oxidation, leading
to C–C bond cleavage. Herein, cubic-shaped PdBi nanoparticles
with tunable Ni doping levels are successfully synthesized through
a one-step solvothermal method. Owing to the downshift of d-band center
originating from the introduction of Bi and Ni as well as the cubic
shape, the PdBiNi ternary nanocubes (NCs) exhibit excellent electrocatalytic
performance for the glycerol oxidation reaction (GOR). Specifically,
Pd 83 Bi 12 Ni 5 NCs with the lowest d-band
center exhibit a specific activity of 61.12 mA cm geo –2 and a mass activity of 5.34 A mg Pd –1 . Notably, the Faradaic efficiency (FE) toward C3
products exceeds 97%. In situ Fourier transform infrared spectroscopy
and density functional theory calculations show that key C3 intermediates
are easily desorbed from the catalyst surface, thereby suppressing
C–C bond cleavage and thus preventing overoxidation into low-value
products. In addition, Pd 83 Bi 12 Ni 5 NCs possess long-term durability over the course of 16 cycles (1
h/cycle) with an FE for C3 products between 92.5% and 97.6% upon scale-up
deployment in a flow electrolyzer, validating its feasibility in practical
operations.
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ACS Catalysis
·
2026
·Vol. 16
·期 17
·17145-17155
·
IF 13.6
He Ye,Liu Huiyu,Sheng Jianping,Du Chenyu,Moghadam Majid,Sun Yanjuan,Dong Fan
Halide perovskite nanocrystals are promising photocatalysts for CO 2 reduction due to their strong light absorption, defect tolerance, and tunable excited-state properties, but their practical performance remains limited by tightly bound excitons, rapid charge recombination, and inefficient interfacial electron delivery. Here, we report an anthraquinone (AQ)-modified CsPbBr 3 nanocrystal photocatalyst (CPB/AQ) in which the redox-active π-conjugated AQ ligand functions as an interfacial electron relay and molecular electric-field modulator. Experimental and theoretical analyses collectively reveal that AQ creates an additional interfacial charge-transfer pathway, strengthens the light-induced surface potential difference from 170 to 270 mV, and decreases the exciton binding energy from 44.05 to 40.74 meV. Consequently, CPB/AQ achieves a CO yield of 433.50 μmol g –1 within 3 h under AM 1.5G irradiation, 4.54 times that of pristine CPB, and maintains stable CO evolution during a 25 h test. Isotopic 13 CO 2 tracing verifies that CO originates from CO 2 reduction, while in situ FTIR spectroscopy demonstrates enhanced CO 2 adsorption/activation and accelerated formation of *COOH and *CO intermediates on CPB/AQ. This work highlights molecularly gated interfacial electric-field regulation as an effective strategy for overcoming charge-transfer bottlenecks in perovskite nanocrystal photocatalysis.
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Materials Today Chemistry
·
2026
·
IF 7.4
Aoshen Wei,Sisi Liu,Tianyu Luo,Kangcan Si,He Li,Junlin Wang,Yong Xia,Xiaoyan Wen,Haifei Lu,Ming-Yu Li
A facile and novel bilayer HTL is demonstrated to enhance the performance of PbS QDs photovoltaics. • The advanced bilayer HTL shows “crack-healing” effect while maintains well -matched energy levels with photoactive layer. • The advanced bilayer HTL exhibits remarkably suppressed trap states and high film quality. • As results, high-performance narrowed-bandgap PbS QDs IR cells are achieved with a champion IR PCE of 1.52%. PbS quantum dots (QDs) infrared (IR) solar cells, able to convert low-energy IR photons into electron-hole pairs, are hopeful photovoltaic devices because it broadens the utilization range of the solar spectrum to IR region. Currently, PbS infrared solar cells usually apply small-sized PbS QDs treated with 1,2-ethanedithiol as hole transport layer (HTL) by solid-state ligand exchange (SSLE) method. However, cracks are prone to generate in HTL due to volume shrinkage in SSLE process, resulting in deterioration of devices performance. Here, a facile and novel bilayer PbS QDs HTL is demonstrated by applying QDs synthesized via different methods to form bilayer structures. It is discovered that bilayer structure can “healing” the film cracks and reduce trap states, which is contributed to the carrier separation and extraction in devices. Meanwhile, the advanced bilayer HTL maintains the well-match energy levels with the narrowed-bandgap PbS QDs photoactive layer. As results, superior average AM1.5 PCE of 10.45% (the champion device achieved 12.27%) and average infrared PCE (IR PCE) of 1.24% (the champion device achieved 1.52%) were obtained in devices with the bilayer HTL, demonstrating a facile and reliable approach to enhance the performance of optoelectronic devices. A facile and novel bilayer HTL is demonstrated to improve device performance. Download: Download high-res image (338KB) Download: Download full-size image
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Advanced Science
·
2026
·
IF 14.1
Daqing Xia,Lei Liu,Shuang Jin,Guangxu Fang,Chang Yu,Yunyun Wu,Lunli Xiang,Hongrui Zhu,Zhenqiang Wang,Jixi Zhang
Bioorthogonal catalysis holds great promise for precision cancer therapy, yet its clinical translation is critically hindered by the lack of reliable control over catalytic activity. Uncontrolled “always-on” catalysis or irreversible activation prevents timely termination, making it difficult to confine prodrug activation within a safe therapeutic window. To address this challenge, we developed an ultrasound-recharging-regulated closed-loop bioorthogonal system integrating on-demand activation, enhanced catalytic performance, and self-termination, enabling precise in vivo prodrug activation. Mechanistically, pyroelectric polarization of BaTiO 3 induces deposition of sub-nanometer Pd clusters whose catalysis is initially silenced by rapid oxidative passivation. Upon ultrasound stimulation, the piezoelectric BaTiO 3 core generates a built-in electric field that reduces surface Pd 2+ to catalytically active Pd 0 , thereby activating bioorthogonal reactions while promoting charge separation and reactive oxygen species generation. Simultaneously, piezoelectric screening charges accelerate interfacial electron transfer, significantly enhancing catalytic kinetics. Crucially, rapid repassivation after ultrasound cessation leads to complete catalytic deactivation, establishing a closed bioorthogonal cycle following a single stimulus. In vitro and in vivo studies demonstrate that the activated species induce immunogenic cell death while avoiding side effects from persistent catalysis. This work presents a safe, controllable, and efficient paradigm for bioorthogonal catalytic therapy, advancing its clinical translation.
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ACS Sensors
·
2026
·
IF 10.9
Zhefu Mu,Xianjie Xu,Jiaxin Sun,Guo Chen,Zijun Huang,Xinkai Qi,Hongwei Liu,Yanhong Wei,Jialiang Zhou,Peng Wang,Xiuquan Gu,Sheng Huang
Monitoring internal electrolyte decomposition byproducts is pivotal for the early warning of thermal runaway in lithium-ion batteries yet remains a formidable challenge due to the harsh chemical environment. Herein, we engineer a robust electrochemical sensor based on a CsPbBr3/Al2O3@EVA heterojunction architecture to achieve real-time, in situ tracking of lithium methoxide (CH3OLi) evolution. Through interface engineering, the synthesized quantum dot−Al2O3 composite (8.7at%Al) achieves exceptional stability in reducing electrolytes, attributed to the synergistic dual-passivation of Br−Al interfacial bonding and EVA encapsulation. The sensor exhibits superior sensitivity (0.3 at 10% CH3OLi) and rapid kinetics (response/recovery: 8.98 s/56.11 s), driven by the promoted molecular diffusion in mesoporous Al2O3 and polarized adsorption within the Pb+2−Br− framework. Density functional theory (DFT) calculations further corroborate this mechanism, revealing a strong Li+ binding energy of −1.54 eV at Al−O−Br active sites. Furthermore, by integrating the sensor signals with an XGBoost machine learning algorithm (accuracy >99%), we demonstrate a smart monitoring system capable of accurately predicting battery voltage variations and identifying potential safety hazards. This work establishes a new paradigm merging interface-stabilized materials with intelligent algorithms, transforming battery safety management from passive protection to active early warning.
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ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Hongdan Ren,Shalong Wang,Yingyi Nong,Ying Sun,Jindi Wang,Mingyang Li,Leimeng Xu,Jisong Yao,Jizhong Song
Fast-responsive and efficient perovskite QD-based light-emitting diodes (QLEDs) demonstrate significant potential in high refresh rate display applications. However, the response time and external quantum efficiency (EQE) remain limited by imperfect device architectures, including low carrier mobility in transport layers and severe interface losses. Here, we utilized a molecule (3-(6-(3-(4,6-di([1,1′-biphenyl]-4-yl)-1,3,5-triazin-2-yl)phenyl)pyridin-2-yl)phenyl) diphenylphosphine oxide (ETL-PO) as an electron transport layer (ETL) due to its high electron mobility, which could also reduce defects at the interface between the QDs and ETL in the perovskite QLED. The P═O group of ETL-PO coordinates with undercoordinated Pb 2+ to suppress nonradiative interfacial recombination, while the conjugated backbone supports efficient electron transport and reduces the device's resistance and capacitance. Resultantly, the QLEDs based on ETL-PO exhibit a total response time of 564 ns at an active area of 0.01 mm 2 , which is more than 50 times faster than that of 29 µs for control devices. Furthermore, a peak EQE of 22.8% with a maximum luminance of 105518 cd m −2 is reached. This work shows a perovskite QLED device successfully achieved both high EQE and nanosecond-level response time, providing a new perspective for the field of optical communication and data transmission.
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