Journal of Materials Chemistry C
·
2026
·
IF 5.1
Xincheng Yuan,Yingxin Li,Lu Ji,Tianhe Deng,Donghao Lu,Wen Lv
Optical transparency regulation holds great potential for information displays, while achieving high-resolution control still remains a challenge. Light manipulation offers superior spatial precision, but conventional photoactivatable systems based on photochromic groups suffer from considerable self-absorption, leading to incomplete transparency–opaque switching. To overcome this limitation, an optical transparency tunable hydrogel was developed by embedding an azobenzene-based polymer and a triplet photosensitizer (PdTPTBP) into a three-dimensional crosslinked hydrogel. This hydrogel enables high-resolution transmittance tuning upon long-wavelength red light irradiation. The key mechanism relies on the reversible photoisomerization of the azobenzene moiety, which changes its solubility and aggregation state to alter light scattering and transparency. Crucially, by constructing a triplet–triplet energy transfer process with the azobenzene moiety, the PdTPTBP extends the excitation wavelength for the cis-to-trans isomerization to 625 nm, a wavelength outside the intrinsic absorption bands of the azobenzene moiety. This design significantly suppresses self-absorption of the azobenzene moiety, widens the transmittance regulation range (23% to 96%), and enhances contrast between transparent and opaque regions. The achievable distinguishable distance between these regions reaches 0.1 mm, revealing a resolution sufficient for high-definition displays and demonstrating considerable promise for high-resolution information-display applications.
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MATERIALS RESEARCH BULLETIN
·
2026
·
IF 5.8
Minghang Huang,Huan Li,Hongxing He,Zhifeng Nie,Lishi Chen,Huaying Liu,Haijiao Xie,Xiaoning Tang
CdS@PANI Type II heterojunction inhibits CdS photo-corrosion for enhanced stability. • Interfacial electric field boosts charge separation and photocatalytic performance. • The degradation rate constant of CdS@PANI-5% for RhB is 2.34 times. • Interpreted the charge transfer and degradation mechanisms of CdS@PANI. This study synthesized a CdS@polyaniline (PANI)−5% type-II heterojunction photocatalyst (containing 5% polyaniline) for the efficient degradation of organic matter in water. As demonstrated by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy analyses of CdS@PANI-5%, the PANI nanofibers inhibit CdS aggregation and increase the number of reactive active sites. X-ray photoelectron spectroscopy, ultraviolet photoelectron spectroscopy, and density functional theory calculations show that interface electrons are reconstructed at the interface, reducing the carrier escape barrier and effectively separating the CdS-photogenerated charge carriers. The results are confirmed by photoluminescence and electrochemical impedance spectroscopies. In a rhodamine B (RhB) degradation experiment, CdS@PANI-5% achieves a 2.34 higher RhB degradation rate constant than pure CdS and maintained high activity (>84%) after four cycles. These results confirm the photocatalytic degradation performance and structural stability of CdS@PANI-5%. Finally, the degradation mechanism of CdS@PANI was derived through electron paramagnetic resonance and liquid chromatography–mass spectrometry. Download: Download high-res image (201KB) Download: Download full-size image
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ADVANCED MATERIALS
·
2026
·
IF 29.1
Guoyi Chen,Zhiqiu Yu,Chaomin Dong,Shuxin Wang,Fang Yao,Kailian Dong,Shengjie Du,Zixi Yu,Dexin Pu,Hongsen Cui,Lishuai Huang,Hongyi Fang,Yaxiong Guo,Fang Wang,Jiajun Luo,Jiang Tang,Weijun Ke,Guojia Fang
Perovskite light-emitting diodes (PeLEDs) are promising candidates for next-generation display and lighting technologies. However, conventional strategies for controlling morphology and crystalline structure often face challenges such as inefficient carrier transport and poor batch-to-batch reproducibility, primarily due to the presence of long organic ligands and the environment-sensitive nature of crystallization dynamics. Here, we present a localized micro-solvent field engineering strategy that simultaneously enhances device efficiency and reproducibility. By applying a nitrogen micro-gas flow, we obtain a clean nitrogen atmosphere and a lower substrate temperature for subsequent film coating. By incorporating low-boiling-point solvent acetonitrile into the precursor solution as a nucleation promoter, we precisely control the nucleation and growth kinetics. This synergistic approach, which avoids chemical hot-injection synthesis and insulating long-chain ligands, produces uniform quasi-quantum-dot perovskite films with the grain size (7–15 nm) approaching the exciton Bohr diameter with higher exciton binding energy. PeLEDs fabricated using this method demonstrate a peak external quantum efficiency of 33.79%, an average efficiency approaching 31%, excellent batch-to-batch consistency, and successful integration in pixel array devices. This strategy not only overcomes critical limitations in efficiency and reproducibility for solution-processed PeLEDs but also provides a broadly applicable framework to advance the performance and scalability of other perovskite optoelectronic devices.
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Functional Materials Letters
·
2026
·
IF 1
Yang Sheng,Xinyu Zhu,Xingyu Liu,Peng Zhang,Yixin Sun,Rong Zhang
Developing novel materials to improve the global food supply is vital to combat hunger, achieve food security and promote sustainable agriculture. To address this issue, we employed red-emitting Ag-In-S-Zn (AISZ) quaternary quantum dots (QDs) as light converters to fabricate AISZ QDs-loaded ethylene vinyl acetate (EVA) copolymers (AISZ/EVA) films to improve the light conditions for crop growth. The synthesis of AISZ QDs was optimized to achieve a high quantum yield (73%) and an emission band matching the absorption window of chlorophyll a and b. Using EVA resin as the matrix, efficient ultraviolet-to-red light-converting AISZ/EVA films with varying AISZ content were prepared by the solvent evaporation method. The fluorescence and transmittance of these light-conversion films along with a blank EVA control, were characterized. Subsequent 28-day lettuce cultivation under controlled light illumination revealed that the 1.0 wt.% AISZ/EVA film induced maximal growth enhancement. The fresh weight and dry weight were increased by 28.2% and 34.4%, respectively, while the contents of total chlorophyll, chlorophyll a, chlorophyll b, carotenoid, soluble sugars and proteins were increased by 48.8%, 51.3%, 43.8%, 40.8%, 33.6% and 37.2%, respectively. The results demonstrate that broad-emitting AISZ QDs served as efficient light converters to fabricate agricultural light-conversion films, highlighting their broad application prospects and promising commercial potential in controlled environment agriculture.
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Journal of Environmental Sciences
·
2026
·
IF 6.5
Weiwei Yang,Tengbin He,Weijie Huang,Yan Zhang,Wenpo Shan,Taicheng An
The geometric interplay in heterogeneous catalysis plays a crucial role in determining the catalytic performance. Based on the stronger affinity of Pd for ceria (CeO 2 ) than for titanium oxide (TiO 2 ) found in this work, we strategically engineered distinct Pd local environments by controlling the architecture of CeO x on TiO 2 through adjusting Ce content. At low Ce content, Pd preferentially assembles onto CeO x islands that are interspersed on TiO 2 ; while at high Ce content, Pd predominantly anchors onto the extensive CeO x surface. The former structure, enriched with CeO x -TiO 2 interface, exhibits superior capability in C-H bond cleavage and O 2 activation, leading to outstanding performance in the oxidation of carbon-containing gases such as light volatile organic compounds (VOCs; e.g., ethane and ethylene) and carbon monoxide (CO). In contrast, the structure dominated by continuous CeO 2 networks shows markedly lower activity. Combined analyses indicate that Pd 2+ species act as the primary active sites, and the consistent activity trend across differently Ce-modified catalysts in VOCs and CO oxidation can be explained by shared mechanistic steps, particularly through common CO and bicarbonate species intermediates. This work provides fundamental insight into the relationship between interfacial geometry and catalytic function.
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Nano-Micro Letters
·
2026
·Vol. 18
·期 1
·294
·
IF 38.5
Yao Zhiwei,Liang Changsheng,Bi Chenghao,Zhou Wenyuan,Ren Ke,Deng Ming,Ding Shuo,Xiang Chaoyu
A new quantum dot (QD) films with negligible redshift of photoluminescence spectra after film fabrication from QD solution.
An electron barrier around QDs realized by adopting ligands with concentrated electron distribution.
Record external quantum efficiency of light-emitting diodes based on CsPbI 3 QDs (28.9% at 640 nm and 32.0% at 657 nm).
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CRYSTENGCOMM
·
2026
·
IF 2.4
Qi Zheng,Tianyun Du,Chunqian Xu,Xiuxun Han
The development of efficient near-infrared (NIR) luminescent materials excitable by visible light remains a significant challenge for practical applications in bioimaging and sensing. Here, we report a novel sensitization strategy to achieve high-efficiency NIR-II emission in lead-free halide double perovskites. Cr3+/Tm3+ co-doped Cs2Ag0.6Na0.4InCl6 single crystals were synthesized via a hydrothermal method. The introduced Cr3+ ions reside in a tailored weak crystal field of the Na+-alloyed host and exhibit strong absorption in the visible region. Furthermore, energy is effectively transferred from Cr3+ to Tm3+ activators, thereby overcoming the intrinsic limitation of weak f–f absorption in lanthanide ions. This strategy yields a remarkable enhancement of the characteristic Tm3+ emission at 1226 nm. The optimally doped phosphor, Cs2Ag0.6Na0.4InCl6:30% Cr3+/30% Tm3+ (nominal feed ratios; actual doping concentrations: 0.14% for Cr3+ and 1.57% for Tm3+), achieves a high photoluminescence quantum yield (PLQY) of 35.8% under 340 nm excitation. The phosphor demonstrates excellent environmental stability, retaining 86.87% of its initial intensity after 210 days of storage under ambient conditions. A fabricated NIR phosphor-converted light-emitting diode (pc-LED) successfully enables proof-of-concept applications in non-destructive food freshness analysis and deep-tissue imaging. This work provides a fundamental design principle utilizing transition-metal sensitization in engineered perovskite hosts for high-performance, stable, and eco-friendly NIR light sources.
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Nature Protocols
·
2026
·
IF 18.4
Li Chenhao,Teng Qian,Li Jinyang,Yuan Fanglong
Carbon quantum dots (CQDs) have emerged as promising materials for electroluminescent light-emitting diodes (LEDs) because of their photostability, low toxicity and tunable luminescence. However, their implementation in solid-state devices is often hindered by aggregation-induced quenching (AIQ), which leads to a substantial loss of photoluminescence quantum yield (PLQY) and poor device reproducibility. Here, we present a robust, reproducible and scalable protocol for the preparation of solid-state emissive CQDs (SSE-CQDs) and their integration into electroluminescent LEDs. The protocol uses a solvothermal reaction between aromatic aldehydes and aromatic nitriles, involving Knoevenagel-type condensation, dehydration and carbonization. This synthetic strategy enables the formation of non-planar conjugated architectures with incorporated long-chain electron-donating alkoxy groups, which effectively suppress intermolecular π–π interactions and mitigate AIQ in the solid state. Compared with existing approaches that rely on host matrices or multistep post-synthetic modification, this protocol produces intrinsic SSE-CQDs, simplifying processing and improving reproducibility. Using this approach, SSE-CQDs with PLQYs exceeding 40% under ambient conditions can be reproducibly obtained and processed using standard solution-based techniques. This protocol describes in detail the synthesis, purification and basic optical characterization of SSE-CQDs, followed by their incorporation into electroluminescent device architectures. The complete workflow, from CQD synthesis to LED fabrication, can be completed within ~41.5 h. The procedures are compatible with conventional laboratory equipment and are suitable for researchers with experience in nanomaterial synthesis and optoelectronic device fabrication. This protocol provides a general and transferable platform for developing CQD-based solid-state emitters and LEDs.
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JOURNAL OF MATERIALS SCIENCE
·
2026
·Vol. 61
·期 35
·26088-26113
·
IF 4.4
Li Jingmei,Pang Zibo,Qi Junxiao,Lu Jiamin
In this study, CuTCPP was loaded onto the surface of g-C 3 N 4 through a simple organic reaction to prepare a series of g-C 3 N 4 -CuTCPP (CNTP) photocatalytic composite materials. The material was characterized using XRD, SEM, EDS, and other methods to analyze its physicochemical properties. The biological safety of materials was evaluated through in vitro cytotoxicity experiments. Using E. coli , S. aureus , P. aeruginosa , B. subtilis , and C. albicans as model microorganisms, the broad-spectrum antibacterial performance of composite materials was tested under visible light to investigate the effects of concentration gradient and light exposure time on sterilization efficiency. The antibacterial mechanism was further revealed through reactive oxygen species fluorescence detection, free radical scavenging experiments, and evaluation of cell membrane damage. In addition, livestock and poultry wastewater was used as actual water samples to verify the practical application potential of the materials. Graphical abstract
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CERAMICS INTERNATIONAL
·
2026
·
IF 6
Yaxiang Sun,Peipei Wang,Weikai Shi,Xin Lan,Yanju Liu,Jinsong Leng
BaTiO 3 ceramics fabricated by conventional methods have been the primary focus of previous investigations. In contrast, the effects of different sintering aids on DLP-fabricated BaTiO 3 ceramics were systematically investigated over a wide sintering-temperature range. A DLP fabrication route incorporating sintering aids was employed to overcome the limitations of conventional fabrication in producing complex-structured lead-free piezoelectric ceramics with tailored properties. BaTiO 3 ceramics were fabricated using a high-solid-loading photosensitive slurry (85 wt%). Four independent compositions were prepared, each containing a single sintering aid (CuO, SiO 2 , TEOS, or Li 2 CO 3 ). The printed samples were subsequently sintered at temperatures ranging from 1375 to 1475 °C to establish clear processing–structure–property relationships. The results show that all sintering aids significantly influence densification behavior, microstructural evolution, and functional properties. Among them, TEOS-containing ceramics exhibit the most balanced overall performance, with optimal properties achieved within 1425–1450 °C. The sample sintered at 1425 °C shows the highest relative density (0.941) and dielectric constant (1904), while the maximum piezoelectric coefficient (d 33 = 234 pC/N) is obtained at 1450 °C. CuO addition leads to the highest piezoelectric response (d 33 = 258.7 pC/N), but is accompanied by abnormal grain growth and reduced microstructural stability. In contrast, SiO 2 - and Li 2 CO 3 -containing samples exhibit comparatively lower overall performance due to less effective densification and microstructural development. Overall, a systematic comparative framework was established for evaluating the effects of different sintering aids on DLP-fabricated BaTiO 3 ceramics. The combination of sintering-aid engineering and additive manufacturing offers an effective route for optimizing the microstructure and multifunctional performance of lead-free piezoelectric ceramics for energy harvesting and sensing applications.
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Horticulturae
·
2026
·Vol. 12
·期 7
·866
·
IF 3.4
Yanru Yu,Xuena Yu,Hongyu Chen,Zhongrong Guan,Wenping Li,Pingping Shi,Huanhuan Huang,Bo Sun,Zhi Huang
HighlightsWhat are the main findings?Red, white, and blue light differentially regulated growth, pigments accumulation, and antioxidant compounds and glucosinolates in mustard sprouts, respectively.Combined with sodium selenite, SeR showed the greatest gains in growth, SeW attained the highest total glucosinolates content, and SeB the highest antioxidant capacity.What are the implications of the main findings?Targeted combinations of light quality and exogenous selenium can selectively enhance the yield or nutritional quality of mustard sprouts in controlled-environment production.Phenylpropanoid biosynthesis and linoleic acid metabolism are key pathways underlying the combined effects of light and selenium on health-promoting compounds.Mustard (Brassica juncea) sprouts are appreciated for their high levels of bioactive constituents, but how light quality and exogenous selenium interactively regulate their growth and nutritional properties is still poorly understood. In this study, we evaluated the individual and combined effects of red (R), white (W) and blue (B) light together with 100 μmol·L−1selenium solution (SeR, SeW, SeB) on sprouts growth, health-promoting compounds, and metabolic profiles. Under single light quality treatments, red light favored growth, white light promoted photosynthetic pigment accumulation, and blue light most effectively enhanced antioxidant compounds and glucosinolates. Combined treatments further improved both yield and quality. SeR showed the greatest gains in growth indices; SeW achieved the highest total chlorophyll, total carotenoids, and total glucosinolates (the latter reaching 108.18 μmol g−1DW), and SeB attained the highest total selenium, soluble sugar, soluble protein, anthocyanins, ascorbic acid, flavonoids, total phenolics, and antioxidant capacity. Non-targeted metabolomics identified 1208 differential metabolites, with KEGG enrichment revealing that the phenylpropanoid biosynthesis pathway was significantly enriched across all selenium-treated groups. These findings demonstrate that targeted combinations of light quality and exogenous selenium can selectively enhance the growth or nutritional quality of mustard sprouts, offering practical guidance for their controlled-environment production.
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JACS Au
·
2026
·Vol. 6
·期 8
·4679-4694
·
IF 8.5
Zhang Xibo,Tao Haolan,Wang Yefei,Zhao Yang,Wang Yuting,He Teng,Guo Jianping,Lian Cheng,Chang Fei
Photothermal catalysis offers a promising pathway for
sustainable
ammonia synthesis under mild conditions. However, its performance
is constrained by intrinsic scaling relations between dinitrogen activation
and subsequent hydrogenation steps. To overcome this long-standing
bottleneck, we design a Ru-LiH/TiN catalyst that enables a light-driven
reaction cascade, wherein lithium hydride (LiH) serves as a dynamic
“nitrogen mediator”. Under ambient pressure and illumination
at 3.3 W·cm –2 , the catalyst achieves an unprecedented
NH 3 production rate of 5574.3 μmol·g –1 ·h –1 (equivalent to 428.8 mmol·g Ru –1 ·h –1 ), representing
a 31-fold improvement over its thermal-catalytic counterpart and a
52-fold enhancement relative to Ru/TiN. Notably, the Ru-LiH/TiN exhibits
robust catalytic stability over 50 h, in stark contrast to the rapid
deactivation (<1 h) commonly observed in thermal catalysis due
to NH x ( x = 1–3)
accumulation-induced adsorbate poisoning. Mechanistic studies reveal
a relayed photothermal catalysis mechanism: photogenerated hot electrons
facilitate N 2 activation on Ru sites, followed by nitrogen
transfer to the LiH-TiN interface to form destabilized [Li–Ti–N-H]
intermediates; subsequently, photoexcited LiH liberates reactive hydrogen
species that participate in nitrogen hydrogenation. This work presents
a new strategy that simultaneously weakens the strong adsorption of
NH x on the catalyst and enables efficient
NH 3 production under mild conditions.
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