Journal of Materials Chemistry C
·
2026
·
IF 5.1
Xudong Jiang,Jie Li,Zunxian Yang,Yue Chen,Luxi Yuan,Wenxin Tang,Yuting Bai,Jiajie Hong,Benfang Liu,Zheyu Zhou,Runsen Yu,Wenxin Zhang,Shangwei Ye,Zhiqian Wei,Zhezhou Fang,Jinzhu Gao,Zhiyu Yuan,Shunchang Cheng,Yuhan Meng,Zhiqi Lin,Tailiang Guo,Zhenzhen Weng,Yongyi Chen
As display technologies mature, there is a growing demand for displays that offer superior visual quality. However, the development of high-resolution fabrication processes that are low-cost, simple, and scalable remains a significant challenge. Currently, established techniques like photolithography and inkjet printing face specific challenges. For instance, photolithography inevitably causes film damage during steps such as resist removal and etching, while inkjet printing is constrained by nozzle size and the coffee-ring effect, limiting further resolution improvements. This study employs an indirect transfer printing method, which utilizes a stamp fabricated via a two-step molding process. This stamp exhibits excellent solvent resistance, allowing it to define the pattern of the polymethyl methacrylate (PMMA) insulating layer and thereby indirectly achieve the patterning of the quantum dots. Additionally, a layer of PDMS is incorporated beneath the UV-adhesive stamp to enhance its overall elasticity, ensuring conformal contact with the target substrate during the transfer printing process. Compared to existing techniques for transferring insulating layers, our method significantly streamlines the fabrication workflow while maintaining high pattern fidelity and transfer success rates. Using this approach, we successfully fabricated green high-resolution devices with a resolution exceeding 6000 PPI and a maximum active area of 1 inch. This work provides a viable strategy and paves the way for high-resolution device fabrication.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.7
Wanying Zhang,Kaihuai Zhuo,Jie Chen,Tongtong Wang,Xuanyang He,Mengjie Li,Weilin Gao,Yiran Zhao,Xue Yang,Zhuoyin Peng,Xiaoyu Zhang,Yingwei Wang,Keqiang Chen,Guogang Li
Surface ligands are crucial for perovskite quantum dot (PQD) optoelectronics. However, long alkyl chains limit charge transport, while short chains destabilize their soft lattice, presenting a stability–mobility dilemma. Moreover, surface-bound protonated primary amines are susceptible to deprotonation, accelerating performance decay and structural collapse. In this work, we introduced tetrabutylphosphonium bromide (TBPB) as a surface passivation ligand to overcome these limitations. TBPB combines minimal molecular polarity—enabling a short chain for superior charge transport—with a fully coordinated phosphonium center that resists deprotonation and passivates halogen vacancies. This yields quantum dots with near-unity PLQY and robust stability, leading to LEDs achieving a maximum external quantum efficiency (EQE) of 24.28% and luminance of 122,786 cd m −2 , far surpassing control devices. Further shortening the ligand chain increases EQE to 27.89% but at the cost of severe luminance loss, underscoring the delicate balance in ligand engineering.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 12.5
Zhixiang Gui,Guodong Li,Dexin Jin,Yinglin Wang,Changhua Wang,Song Yang,Hao Li,Xintong Zhang,Yichun Liu
SnO 2 is considered an ideal electron transport layer (ETL) material for solar cells due to its excellent stability, high transparency, and high electron mobility, however, its performance in near-infrared quantum dots photovoltaics has remained unsatisfactory. This underperformance is mainly linked to generally-used chemical bath deposition (CBD) method of SnO 2 ETLs which is prone to incomplete oxidation of Sn 2+ precursor. The resulting Sn 2+ residues and oxygen vacancy (Ov) induce severe interfacial traps limiting further efficiency gains. In this study, we utilized dielectric barrier discharge technology to generate high-activity oxygen plasma for gas-phase post-treating the CBD-SnO 2 surface. This oxygen plasma reduced the amount of Sn 2+ and Ov by ~20%, which suppressed trap-assisted recombination and collectively reduced interfacial energy band alignment offset. Compared with untreated devices (efficiency: 11.32%), PbS QDSCs with optimized SnO 2 ETL increased carrier lifetime by nearly twofold and enhanced interfacial carrier collection efficiency by 10.7%, significantly raising efficiency to 13.28%. This distinctive gas-phase post-treatment method, which introduces no additional chemicals and leaves no residues, offers a new technical avenue for developing high-performance ETL.
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MICROCHEMICAL JOURNAL
·
2026
·
IF 5.1
Penghao Zhu,Guang Zheng,Kaili Gao,Duoxia Xu,Xiaohua Nie,Yuanchao Lu,Guijie Hao,Xianghe Meng
Size and shape critically influence the optical properties of CsPbBr 3 NCs, but lack sufficient research in sensing. Herein, particle sizes and shapes of CsPbBr 3 NCs were precisely adjusted by room-temperature synthesis method, and sensing performances to peroxide value (PV) of edible oils were investigated. The results found that the particle sizes (4.3 ± 0.2, 6.3 ± 0.2, 8.8 ± 0.3, and 12.9 ± 0.6 nm) of high-crystallized cubic CsPbBr 3 NCs were precisely obtained, and the fluorescence (from 491 to 516 nm) and absorption (from 470 to 526 nm) peak wavelengths redshifted as the particle size increased from 4.3 nm to 12.9 nm. Among four particle sizes, CsPbBr 3 NCs (8.8 nm) demonstrated the optimal sensing performance (wavelength-shifted colorimetric method R 2 = 0.99) for PV detection, achieving a linear response range of 0.02–0.36 g/100 g with LOD of 0.0022 g/100 g and LOQ of 0.0073 g/100 g. Considering the interference from trace moisture in edible oil, a moisture-compensated intensity-quenched colorimetric method was proposed to improve the practical accuracy, with the practical recovery rates from 95%–245% to 90%–119%. Therefore, the proposed methods had good sensitivity, accuracy and practicability, and enlightened the effective technologies for the quality detection of edible oil.
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Materials Today Bio
·
2026
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IF 10.2
Jingqiu Chen,Hegeng Li,Yanbing Tao,Wenjian Zhang,Xinyi Chen,Yunong Zhao,Lanpeng Guo,Qing Huang,Jianjun Chen,Huan Liu
Rhinitis is a common chronic respiratory disease that severely affects patients’ quality of life and may lead to serious complications, underscoring the need for rapid and portable diagnostic tools to support routine monitoring and clinical management. Here, we introduce a multiscale material platform based on colloidal quantum dots (CQDs) for the construction of electrochemical immunosensors enabling the rapid detection of eosinophil cationic protein (ECP) and neutrophil myeloperoxidase (MPO), two clinically relevant biomarkers of rhinitis. The platform leverages specific antigen–antibody recognition coupled with the electrical transduction and interfacial charge-transfer properties of CQDs, resulting in significant amplification of electrochemical signals and high detection sensitivity. To ensure translational applicability, we systematically examined key factors associated with real clinical samples—including hemolysis, storage duration, and preservation conditions in serum—and verified the method’s reliability through spiked recovery experiments. Importantly, the immunosensor was successfully applied to the detection of ECP and MPO in patient-derived nasal secretion samples, exhibiting strong concordance with enzyme-linked immunosorbent assay (ELISA) results. Collectively, this work demonstrates that the CQD-based materials platform offers a robust and clinically validated strategy for protein biomarker detection, and highlights its strong potential for point-of-care testing (POCT) and home-based diagnostics, providing valuable support for the early diagnosis and management of rhinitis.
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Journal of Analysis and Testing
·
2026
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IF 7
Lu Heng,Chen Jingru,Zhang Maosheng,Guo Liangqia
Microplastics (MPs) are emerging pollutants, considered one of the most serious threats to the ecosystem and human health. Nile Red (NR) is the most widely used dye for visualizing MPs. However, NR staining is affected by natural organic materials and shows weak fluorescence for certain types of MPs, such as polyamide (PA) and polyvinyl chloride (PVC), as well as MPs with fiber morphology. Herein, a rapid, universal staining method for visualizing MPs was proposed, using CsPbBr 3 perovskite nanocrystals (NCs) as a fluorescent dye synthesized by natural deep eutectic solvents (NADESs) as solvents and surface ligands (CsPbBr 3 @NADESs NCs). The staining method proved to be highly effective for common MPs, including PA and PVC MPs. Moreover, natural organic substances, such as cellulose, lignin, mussel shell, chitin, clam shell, shrimp shell, humic acid, and sand grains, could not be stained by CsPbBr 3 @NADESs NCs, which allowed MPs to stand out for visual detection even that the environmental samples were incompletely pre-treated. This study demonstrated CsPbBr 3 @NADESs NCs as a promising fluorescent dye for visual detection of MPs in environmental samples.
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Journal of Analysis and Testing
·
2026
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IF 9.4
Zheng Desheng,Zhu Jianping,Tang Wenqi,Xu Ming,Gu Zhiyuan
Stationary phase optimization is crucial for enhancing gas chromatography (GC) separation performance, yet coating process engineering remains overlooked despite its significant impact on stationary phase loading and distribution. Coating process engineering directly impacts the loading amount and the stacking mode of the stationary phase materials on the inner wall of the chromatographic columns. Uneven coating can result in insufficient stationary phase loading and severe material aggregation, ultimately preventing the material from achieving its full separation potential. Herein, we proposed a solvent polarity matching strategy and successfully fabricated an evenly distributed MIL-125-NH 2 stationary phase for GC separation. Compared to uneven stationary phases, the evenly distributed GC stationary phase obviously eliminated peak tailing in substituted benzene separation and demonstrated a remarkable improvement in separation resolution. Furthermore, validation with UiO-66 confirmed the universality of this strategy. This work established coating engineering as vital as material design, offering a practical approach to unlock the full separation potential of high-performance GC stationary phases.
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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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Advanced Optical Materials
·
2026
·
IF 7.2
Hanyun Yang,Haoqi Zhu,Huiyuan Bai,Mengwei Luo,Hang Guo,Wenxu Sun,Bin Xue,Lei Zhang
Halide perovskite nanocrystals (NCs) are promising emitters for wide-color-gamut displays owing to their high color purity, yet their practical application is limited by ligand desorption-induced instability. Here, we develop a sequential ion-ligand synergistic passivation strategy to stabilize CsPbBr 3 NCs. Zn 2+ ions are introduced to compensate surface Pb vacancies, while thiol ligands further passivate undercoordinated Pb/Zn sites, thereby reducing surface defects and enhancing lattice stability. The resulting NCs exhibit a narrower emission spectra and high photoluminescence quantum yield of ∼95% together with significantly improved optical stability, demonstrating the advantages of sequential ion-ligand synergistic strategy. Further encapsulation into PMMA microspheres efficiently enhances environmental robustness of NCs, enabling a T 85 lifetime approximately sevenfold longer than that of pristine NCs under 85°C/85% RH conditions. The resultant white light-emitting diodes based on NCs microspheres achieve ∼121% of NTSC color gamut with a superior display performance and excellent long-term operation stability. Therefore, this work establishes a synergistic ion-ligand passivation strategy for stabilizing perovskite NCs and offers a design strategy for high-performance display applications.
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ACS Nano
·
2025
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IF 16
Yutian Lei,Yakun Shi,Ping Li,Jing Li,Wenqing Zhang,Si-Yang Liu,Yuzhi Xu,Zhaofan Luo,Xing Han,Yanfei Zhang,Jianhe Guo,Zong Dai
The reliable application of surface-enhanced Raman scattering (SERS) in bioanalysis is critically constrained by inherent trade-offs among sensitivity, chemical stability, and signal homogeneity of conventional substrate materials. Although silver–gold core–shell nanocubes (Ag@Au NCs) stand out for their high SERS activity and improved stability, preparing complete and uniform Ag@Au NCs remains challenging due to galvanic replacement-induced Ag core etching. To address this problem, this work reveals three distinct growth modes during Au shell deposition and proposes a size-determined growth rule to guide well-preserved Ag@Au NCs synthesis. We identified that larger Ag nanocubes (Ag NCs) with fewer unpassivated {111} facets preferentially form well-preserved Ag@Au NCs through layer epitaxial growth─an exclusive mode enabling intact ultrathin Au shells without Ag core etching. The resulting Ag@Au NCs exhibit exceptional batch-to-batch consistency and retain the high SERS activity of pristine Ag NCs, while achieving prolonged chemical stability (>180 days). Benefiting from their uniform morphology, these NCs can be assembled into highly ordered two-dimensional substrates with superior signal reproducibility (RSD = 4.96%) and plasmon activity (Raman enhancement factor >107). By integrating this substrate with a tetrahedral DNA-based detection method, a portable SERS biosensor cartridge was developed for multiplexed miRNA profiling in human plasma. Leveraging the superior performance, this platform demonstrates compelling potential for reliable cervical cancer diagnosis and staging. The modular cartridge design also makes it a versatile platform for diverse biomedical applications.
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ACS Applied Nano Materials
·
2023
·
IF 5.9
Haobing Zhao,Hailong Hu,Jinping Zheng,Yuan Qie,Kuibao Yu,Yangbin Zhu,Zhiqi Luo,Lihua Lin,Kaiyu Yang,Tailiang Guo,Fushan Li
With tunable emission in the full visible region, the ecofriendly InP quantum dots (QDs) show unique application prospects in light-emitting devices. At present, InP QDs suffer from wide-bandwidth emission, especially for electroluminescence (EL), which hinders their applications in high-performance display devices. Here, we report a facile one-pot synthesis of narrow-bandwidth InP/ZnSeS/ZnS QDs using a safe phosphorus source of tris(dimethylamino)phosphine, in which the ZnSeS inner-shell layer is formed via temperature-gradient solution growth from 240 to 280 °C. The synthesized green QDs have a high photoluminescence quantum yield (PLQY) of 91% and full width at half-maximum (fwhm) of 36 nm. Moreover, the resultant quantum dot light-emitting devices (QLEDs) also show a narrow fwhm of 42 nm, which is the narrowest emission of green InP QLEDs based on a safe phosphorus source reported so far. Further modulation of the electron injection into the device by inserting a thin layer of lithium fluoride results in a peak external quantum efficiency of 5.56%.
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OPTICAL MATERIALS
·
2023
·
IF 3.9
Qiaocan Huang,Zunxian Yang,Yuanqing Zhou,Yuliang Ye,Bingqing Ye,Zihong Shen,Wenbo Wu,Zongyi Meng,Zhiwei Zeng,Hongyi Hong,Songwei Ye,Zhiming Cheng,Qianting Lan,Jiaxiang Wang,Ye Chen,Hui Zhang,Tailiang Guo,Fushan Li,Yongyi Chen,Zhenzhen Weng
Quantum dots (QDs) with an alloy shell (CdSe@ZnS/ZnS) are one of the most promising emitters for optoelectronic devices for their superior properties such as narrow full width at half maximum (FWHM), high color purity and tunable wavelength. However, the presence of lattice stresses during the internal growth of quantum dots can cause severe exciton bursts. Optimizing the ramp-up process during the core growth of quantum dots and rising the temperature when cladding with ZnS shells is an effective strategy for obtaining high-quality quantum dots. Besides, the stability of quantum dots is further modified by using 1-Octanethiol (OT) as ligands. Detailed analyses of the morphology, colloidal stability, and luminescence performance of QDs were represented. Finally, green CdSe@ZnS/ZnS QLEDs with prolonged carrier lifetimes and less defect state densities achieved peak luminescence at 361850 cd/m 2 with a current efficiency (CE) of 33 cd/A. This work provides a better understanding of the relationship between defect state density and the performance of quantum dots for designing and fabricating high-performance light-emitting diodes.
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