DISPLAYS
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2026
·
IF 3.9
Qiwei Li,Yijian Zhou,Xinrui Huang,Caihong Yan,Shuaishuai Wang,Zongjie He,Chang Lin,Yang Li,Kaixin Zhang,Jie Sun,Qun Yan,Tailiang Guo
Micro quantum-dots light-emitting diodes (Micro-QLEDs) is a pivotal evolution in QLEDs displays. Inheriting the advantages of conventional QLEDs, such as wide color gamut, narrow emission bandwidth, and self-emissive properties while achieving ultra-small size. However, current fabrication methods for Micro-QLEDs are limited by complex processing, efficiency degradation, and high manufacturing costs, which hinder their commercialization. In this study, we employ an all inkjet-printing (AIJP) approach to overcome the compatibility limitations of conventional inkjet processes. In particular, A self-emissive red Micro-QLEDs with the structure ITO/PEDOT:PSS/TFB/QD/ZnO/Ag by stacking 5-soluble layers without intermixing. Its size has been scaled down to 30 μm—the smallest light-emitting area QLEDs for AIJP reported to date. The red Micro-QLEDs achieves the maximum external quantum efficiency (EQE) of 7.35% and a current efficiency of 11.19 Cd/A and the highest brightness of 61,377.41 Cd/m 2 . Accurate printing and uniform film formation were realized through systematic ink formulation optimization. The AIJP process offers significant advantages, including simplified fabrication, high material utilization, and independence from photolithography. This work represents a critical step toward the industrial production of full-color Micro-QLEDs displays and demonstrates strong potential for applications.
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Small
·
2026
·
IF 11.8
Hui Deng,Jinwei Hong,Ruijin Zheng,Yu Zhou,Weihuang Wang,Haifang Zhou,Peijie Lin,Jinling Yu,Yunfeng Lai,Shuying Cheng
Antimony sulfide (Sb 2 S 3 ) photodetectors (PDs) show great prospects in applications of optical communication and imaging. The detector performance is significantly influenced by reflection losses at the incident surface, particularly under weak-light conditions. Herein, we propose self-powered Sb 2 S 3 thin film PDs (glass/ITO/patterned ITO/TiO 2 /Sb 2 S 3 /Au) with light-trapped ITO patterns to enhance absorbance and performance. Periodic cuboid-patterned ITO patterns with the sizes of 50 × 50 µm 2 and depth of 250 nm are fabricated using photolithography and magnetron sputtering, which achieves about a 21% absorbance enhancement of visible light and 16% photocurrent increase of Sb 2 S 3 PDs. Meanwhile, the patterned ITO slightly expands the heterojunction contact area, which enhances the built-in electric field and the carrier extraction efficiency. Under the 530-nm light illumination of 5 µW/cm 2 , the device achieves a responsivity of 4.5 A/W and a specific detectivity of 1.4 × 10 13 Jones, demonstrating its weak-light detection ability. The Sb 2 S 3 PDs array, featuring fast response and a wide 3 dB bandwidth, has demonstrated image sensing capabilities by clearly resolving variations in bright and dark fields, showcasing application potentials.
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ACS Nano
·
2026
·
IF 16
Shuhan Zhang,Shuo Wang,Qilin Wei,Xin Li,Dan Huang,Feng Liu,Wengang Bi,Zhaolai Chen,William W. Yu,Jiang Tang,Liang Wang
Quantum-cutting CsPbCl3:Yb perovskites represent a compelling class of emitters for high-performance near-infrared (NIR, >950 nm) light-emitting diodes (LEDs). The intrinsic anisotropy in dielectric response, surface termination chemistry, and strain fields across different crystallographic facets significantly influences perovskite optoelectronic performance. However, precise control over facet-selective growth in CsPbCl3:Yb thin films remains challenging due to pronounced disparities in surface and formation energies. Here, we introduce a thermal evaporation strategy to achieve controlled crystallographic orientation of CsPbCl3:Yb films for enhanced NIR emission. By modulating thermodynamic and kinetic processes, we enable selective growth of (100)- and (110)-oriented films. Comparative analysis reveals that (110)-oriented films provides a more favorable dielectric environment, resulting in stronger exciton binding and enhanced energy transfer to Yb3+ ions. Leveraging this facet-guided design, our optimized device delivers an external quantum efficiency (EQE) of 7.05% and a radiance of 639 mW/sr/m2 for vacuum-processed NIR (>950 nm) LEDs.
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Nature Photonics
·
2026
·
IF 32.9
Cao Wei,Tian Sen,Zhong Chao,Qiu Li,Zeng Pan,Chen Zhiming,Zhang Xiancheng,Liu Haitao,Liu Kaitao,Li Jian,Sun Tao,Ning Pingfan,Zhang Delin,Wang Wenhong,Jiang Yong,Cao An,Li Liang,Liu Dilong,Nie Zhihong,Yang Fan,Li Fushan,Li Yue
High pixel resolution is critical for next-generation quantum-dot light-emitting diode (QLED) display technologies. Although advances in quantum-dot patterning have improved resolution, the reduction in pixel size often degrades emission efficiency and pattern uniformity. Here we develop a nanoimprint strategy using nanohole-array moulds to fabricate nano-QLEDs via capillary action-induced self-assembly of quantum dots. We realize pixels as small as sub-100 nm with ultrahigh pixel resolution up to 169,333 pixels per inch over an electroluminescent area of 4 mm 2 . Benefiting from the closely packed light-emitting quantum-dot monolayers, our nano-QLEDs show minimal performance degradation upon reducing the pixel size. Notably, the smallest red, green and blue nano-QLEDs maintain average external quantum efficiencies of 17.0%, 10.5% and 5.7%, respectively. We also demonstrate fabrication on flexible substrates as well as an active-matrix display by imprinting micro-QLEDs on a thin-film-transistor backplane, showing images and videos with a resolution of 100 pixels × 180 pixels. This work provides a powerful method for fabricating ultrahigh-resolution nano-QLED arrays with high external quantum efficiency for next-generation displays.
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Nature Communications
·
2026
·Vol. 17
·期 1
·767
·
IF 15.7
Wang Zhenyu,Yang Yingguo,Luo Guizhong,Xu Wenwu,Liu Chengyu,Yang Tianqi,Ji Wenyu,Zhang Fujun,Lu Min,Zhang Yu,Wu Zhennan,Bai Xue
Metal nanoclusters, as unique metallic molecules comprising a few to hundreds of metal atoms and stabilized by organic monolayer ligands, have recently emerged as a novel class of chromophores and hold great promise for flexible light-emitting diodes. However, the fabrication of flexible metal nanoclusters-based light-emitting diodes is still hindered by low photoluminescence quantum yields, suboptimal solution processability, and consequently compromised emitter-film quality with random dipole orientations. This work addresses these limitations through strategic molecular engineering by employing 1, 3-di(9H-carbazol-9-yl)benzene as a π-conjugated mediator. This approach enables supramolecular assembly to achieve π-π coupling-mediated horizontal dipole alignment in nanocluster solid films, allowing an external quantum efficiency of up to 26.4% in flexible light-emitting diodes with a maximum brightness of 41,365 cd m −2 , and retaining more than 94% of initial efficiency after 2000 bending cycles at 3 mm curvature radius.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
·
IF 5.4
Ying Zhang,Jie Zhong,Sihan Chen,Hongwei Zhang,Mingdeng Wei
Interfacial water plays a crucial role in charge transfer and energy conversion at the semiconductor–liquid junction. Here, we firstly demonstrate that TiO 2 with varied crystal phases generates a region of particle-free and negatively charged water at the TiO 2 –water interface without light. Upon irradiation, a mixed-phase TiO 2 electrode (anatase: rutile ≈ 7:3) paired with FTO generated a stable photovoltage of 0.32 V in deionized water without any added redox couples. This photovoltage correlates with surface hydrophilicity as well as crystal-phase composition, revealing a previously overlooked interplay between TiO 2 and interfacial water. These experimental findings not only provide new insights into photoinduced charge dynamics and self-cleaning mechanism at the TiO 2 –water interface, but also suggest an alternative pathway for light-to-electrochemical energy conversion directly from water.
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Small
·
2023
·Vol. 20
·期 9
·2306158
·
IF 13.3
Weiqi Huang,Xianyu Song,Yanqiang Li,Yang Zhou,Qianting Xu,Yipeng Song,Han Wang,Minjuan Li,Sangen Zhao,Junhua Luo
Birefringent crystals have important applications in optoelectronics areas due to their ability to modulate and polarize light. Despite increasing discovery of the birefringence potential of new crystals, it remains a great challenge to optimize both birefringence and bandgap simultaneously. Herein, a 1D chain-like hybrid perovskite birefringent crystal designed by 3D-to-1D dimensional tailoring, (GAM) 2 PbI 7 ·H 2 O (GAM = C 5 N 10 H 10 ), is presented, showing enlarged birefringence of 0.49@550 nm and enlarged optical bandgap (2.48 eV). Consequently, the birefringent quality factor of (GAM) 2 PbI 7 ·H 2 O is up to 2.8 times that of the template MAPbI 3 . In particular, the birefringence is much larger than those of commercial birefringent crystals and surpasses that of the vast majority of hybrid perovskite known to date. Theoretical calculations reveal that the strongly anisotropic arrangement of (GAM) 2.5+ π -conjugated cations and ordered PbI 6 octahedra contributes to the large birefringence and wide bandgap of (GAM) 2 PbI 7 ·H 2 O. It is believed that this work will provide a new pathway toward the rational design and synthesis of hybrid perovskite birefringent crystals for compact wide-bandgap polarization dependent devices.
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ORGANIC ELECTRONICS
·
2019
·
IF 3.495
Chun-Hong Gao,Fu-Xing Yu,Zi-Yang Xiong,Ya-Jie Dong,Xing-Juan Ma,Yue Zhang,Ya-Lan Jia,Run Wang,Ping Chen,Dong-Ying Zhou,Zu-Hong Xiong
All-inorganic cesium halide perovskite materials are intensively investigated due to their excellent photoelectric characteristics, but poor film coverage, unbalanced charge carrier transporting and insufficient exciton harvesting are remaining challenges to be overcome in order to achieve high electroluminescent (EL) performance in perovskite light-emitting diodes (PeLEDs). Here we show that these problems can be solved by introducing both a phosphorescent sensitizer (FIrpic) and an electron transporting material (TmPyPB) into all-inorganic cesium halide perovskite (CsPbBr 3 ). And highly efficient green PeLEDs with full coverage CsPbBr 3 :TmPyPB:FIrpic film as the emissive layer have been achieved, exhibiting the maximum luminance of 37784 cd/m 2 , the maximum current efficiency of 22.6 cd/A and the corresponding maximum external quantum efficiency (EQE) of 5.85%, where the EQE is 48-fold to that of bare CsPbBr 3 PeLEDs. The enhanced EL performance is attributed to less non-radiative current leakage , better film surface passivation effect, balanced charge carrier injection and transportation, as well as better exciton harvesting. It is believed that our work will provide an effective strategy to further improve EL performance of PeLEDs via better exciton harvesting.
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MICROPOROUS AND MESOPOROUS MATERIALS
·
2018
·
IF 3.649
Yongxian Zhou,Wei Chen,Pengfei Wang,Yimin Zhang
Pure EMT-type zeolite (EMC-2) was synthesized using 18-crown-6 ether as structure direction agent and first applied for deeply purification the trace polar-oxygenated compounds from light olefins as well as studying the removal mechanism. This EMC-2 zeolite crystals exhibited high crystallinity , regular hexagonal platelet morphology mainly with diameter of 3–4 μm, thickness of 350 nm. The N 2 adsorption/desorption analyzer indicated the EMC-2 zeolite had both micropores and inter-particle mesopores . The BET surface area , total pore volume and average pore size were 599.5 m 2 /g, 0.347 cm 3 /g and 2.32 nm, respectively. By dynamic adsorption experiment at room temperature , the results demonstrated that the EMC-2 zeolite could deeply purify the trace polar-oxygenated compounds to below 1 × 10 −6 mol/mol in N 2 or C 2 H 4 flow, and exhibited more excellent purification performance than that of 13X zeolite. The breakthrough time for methanol to 1.18 g EMC-2 zeolite was 73.0 h in N 2 system, and 6.0 h to 0.31 g EMC-2 zeolite in C 2 H 4 system. The cumulative adsorption amounts of EMC-2 zeolite for methanol and propanal in N 2 and C 2 H 4 system were 55.99 mg/g, 113.93 mg/g and 98.17 mg/g, 171.61 mg/g, respectively. Moreover, the regeneration experiment also demonstrated the EMC-2 zeolite had more stable structure and longer lifetime. The in-situ FTIR spectra indicated both the purification processes of EMC-2 zeolite for methanol and propanal were physi-sorption mainly via the interaction between the oxygen lone-pair electrons of impurities and the Na + of EMC-2 zeolite. Therefore, the EMC-2 zeolite had great potentials for future industrial application of trace polar-oxygenated compounds removal from light olefins .
研究领域:
材料科学
·
化学工程
·
吸附技术
·
石化净化
·
沸石合成
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DYES AND PIGMENTS
·
2021
·
IF 4.889
Ziwei Lin,Sheng Wang,Qing Yan,Qinghua Yan,Derong Cao
Light is not the only stimuli which can coverts donor-acceptor Stenhouse adducts (DASAs) from the triene to the cyclopentenone form. Here, we firstly demonstrate that Cu 2+ can drive linear-to-cyclic isomerization of DASAs in acetonitrile , which increase the rate of color fading. Three different generations of DASAs ( DASA-1 , DASA-2 , and DASA-3 ) have been synthesized by Knoevenagel condensation to verify the universal applicability of the mechanism by which copper ions discolor DASAs. The Job's plot of DASA-1 to Cu 2+ indicated DASA-1 binds to Cu 2+ with a ratio of 1:1, and the 1 H NMR titration spectrum of Cu 2+ on DASAs as well as the UV–Vis absorption spectra with adding Cu 2+ showed that copper ions could induce the process of linear-to-cyclic isomerization of DASAs in acetonitrile. Based on this, we propose copper ions as the eraser of a DASA derived ink to achieve repeatable erasing. Furthermore, DASAs have been utilized as a Cu 2+ sensor with high selectivity and sensitivity.
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JOURNAL OF PHYSICAL CHEMISTRY B
·
2026
·
IF 2.9
Yan-Ping Shi,Rong-Yao Gao,Hao-Yi Wang,Jian-Wei Zou,Nami Yamano,Feng-Qin Dong,Junrong Zheng,Jian-Ping Zhang
Carotenoid (Car) in photosynthesis plays an essential role in photoprotection by quenching chlorophyll triplet excitation (3Chl*) via a Chl-to-Car triplet energy transfer (TET). However, mechanistic studies on the Car triplet photoprotection (CTP) have been complicated by the involvement of the O2 quenching and the complexity of the thylakoid membrane. To clarify the interplay of the TET with the effects of O2 and lipid–protein interaction, we prepared nanodiscoidal lipid–protein assemblies of the light-harvesting complexes of photosystem II (LHCII) of Bryopsis corticulans and spinach and examined their triplet excitation dynamics in a broad temporal regime of 1–105 ns. For both kinds of LHCII complexes, besides the well-known ultrafast TET at both L1 and L2 sites, an O2 insensitive, slow TET reaction at the L1 (but not L2) site proceeding with a time constant of 11–25 ns was verified. Lipid membranes can substantially accelerate the slow TET reaction and prolong the 3Car* lifetime. On the other hand, both kinds of LHCII complexes bear a minor fraction of Car-unquenchable 3Chl*, i.e., 2.2% and 4.6% (1.5% and 2.2%) for Bry. corticulans (spinach) LHCII complexes in lipid and aqueous phases, respectively, which can be fully quenched by O2. In addition, the lipid membrane promotes the O2 accessibility of LHCII proteins and, compared to L2, the L1 site is (30–130)% more permissive to O2 access. The heterogeneous 3Chl* deactivation pathways and CTP potency of Bry. corticulans and spinach are compared.
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Siyuan Huang,Xia Wang,Jia Liu,Bilyu Hong,Kai Yuan,Youzhu Yuan
Catalytic conversion of CO 2 to light aromatics (including benzene, toluene, and xylene, collectively known as BTX) and olefins is an eco-friendly approach for reducing waste gas emissions, but it remains a significant challenge. Traditional methods that modify the surface acid sites of zeolites to increase BTX selectivity often produce undesired byproducts and involve complex preparation processes. Here, we report a strategy to enhance BTX formation by altering the reaction intermediates using a tandem catalyst composed of metal oxides and dual-zeolite (GaZrO x /SAPO-34/ZSM-5, labelled as GZO/S34/Z5). The inclusion of S34 zeolite facilitates the partial transformation of CO 2 hydrogenation intermediates produced by GZO into light olefins, thereby promoting the aromatic formation in Z5. This results in a 72.6 % selectivity for total aromatics in hydrocarbons, with BTX accounting for a significantly higher selectivity compared to GZO/Z5, representing a 3.4-fold increase from 7.1 % to 24 %. Additionally, by regulating the acid density of Z5, the tandem catalyst with dual-zeolite can directly convert CO 2 and H 2 to 53.5 % aromatics and 25.5 % olefins, with a BTX selectivity of 13.8 % in hydrocarbons. This tandem catalyst design, through adjusting the reaction intermediates, offers an efficient method to inhibit the formation of light paraffin byproducts and enhance BTX selectivity in CO 2 conversion.
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