APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
·
2025
·Vol. 131
·期 5
·1-9
·
IF 2.8
Liao Gengcheng,Huang Zongyu,Ren Long,Qi Xiang
Directly growing oxides on the surface of liquid metal (LM) offers a novel strategy to effectively integrate flexible conductive substrate with semiconductive layer for functional devices including photodetectors. Gallium-based liquid metal with native oxides surface typically demonstrates such LM/semiconductor construction with attractive photoelectric responsivity, however, the relevant photo-electrode lacking efficient response to visible light due to the wide band-gap of Ga-oxides. This paper presents a straightforward fabrication route containing printing and in-situ reaction growing for the preparation of liquid metal functionalized with narrow-band gap semiconductor ( e.g. , Cu 2 O). The resulting LM/metal-oxides heterostructure exhibits a well-matched liquid–solid contact and good interfacial charge transfer between the soft conductive substrate and active surface components. Characterizations including scanning electron microscopy (SEM), Raman spectroscopy, and UV–visible absorption spectroscopy confirm the successful preparation of the Cu 2 O thin layer with an expanded absorption spectrum range. The as-fabricated photoelectrode consisted of LM-Cu 2 O, through photoelectrochemical (PEC) tests, presents fast photo-responsibility under the simulated sunlight illumination and self-powered capability. Specifically, the LM-Cu 2 O based PEC photodetector shows maximum photoresponsivity of − 70 μA/W and photocurrent density of − 9.5 μA/cm 2 at a bias voltage of 0 V. Our results provide a general method for the design and manufacture of novel photodetectors.
✓ 已验证
产品关联
DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2020
·Vol. 31
·期 6
·2006736
·
IF 16.836
Yang Shen,Kong-Chao Shen,Yan-Qing Li,Minglei Guo,Jingkun Wang,Yongchun Ye,Feng-Ming Xie,Hao Ren,Xingyu Gao,Fei Song,Jian-Xin Tang
Perovskite light-emitting diodes (PeLEDs) are emerging candidates for the applications of solution-processed full-color displays. However, the device performance of deep-blue PeLED still lags far behind that of their red and green counterparts, which is largely limited by low external quantum efficiency (EQE) and poor operational stability. Here, a facile and reliable crystallization strategy for perovskite grains is proposed, with improved deep-blue emission through rational interfacial engineering. By modifying the substrate with potassium cation (K + ) as the supplier of heterogeneous nucleation seeds, the interfacial K + -guided grain growth is realized for well-packed perovskite assemblies with high surface coverage and the controlled crystal orientation, leading to the enhanced radiative recombination and hole-transport capabilities. Synergistical boost in device performance is achieved for deep-blue PeLEDs emitting at 469 nm with a peak EQE of 4.14%, a maximum luminance of 451 cd m –2 , and spectrally stable color coordinates of (0.125, 0.076) that matches well with the National Television System Committee (NTSC) standard blue.
✓ 已验证
DOI
高影响因子
EUROPEAN POLYMER JOURNAL
·
2024
·
IF 5.8
Dan Ji,Yaping Wang,Mengqing Luo,Zihao Zhang,Xiaohua Chang,Yutian Zhu
Dual-responsive shape-transformable block copolymer (BCP) particles have arisen great attentions because of their tunable physical and chemical characteristics triggered by external stimuli. Herein, we developed a simple yet effective strategy to realize pH and light dual-triggered shape-switchable BCP particles through the co-assembly of BCPs with photo-responsive additive 4-hydroxyazobenzene (Azo-OH) within the evaporation emulsion droplets. The formation of hydrogen bonding interactions between the Azo-OH and 4-vinylpyridine (4VP) unit increases the volume fraction of P4VP domain, in turn leading to a morphological transition of the particles from onions to pupas by tuning the Azo-OH content. Subsequent light-induced trans – cis transition of the Azo unit induces the enhancement of the hydrophilicity of the P4VP domains, giving rise to internal shape transitions of the BCP particles from pupas to onions with P4VP at the outmost-layer. Furtherly, since the hydrogen bonds between Azo-OH and 4VP group are sensitive to pH, the interfacial properties of the emulsion droplets and the assembled structures are tuned through adjusting the environment pH of the aqueous solution, causing the formation of various particle shape, including pupas, raspberries, and onions. This work offers a promising method to engineer the microstructures of polymeric assemblies, which may attract more attention on the applications of the stimuli-responsive particles.
✓ 已验证
DOI
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-10
·
IF 15.7
Feng Xiaohui,Jia Haoran,Li Rongtan,Lin Le,Li Mingrun,Chen Mingshu,Liu Chengxiang,Du Xiangze,Wang Xiaoyue,Ding Yunjie,Mu Rentao,Fu Qiang,Bao Xinhe
ZnCrO x oxides coupled with zeolites (OXZEO) allow direct conversion of syngas into light olefins, while active sites in the composite oxides remain elusive. Herein, we find that ZnO particles physically mixed with ZnCr 2 O 4 spinel particles can be well dispersed onto the spinel surfaces by treatment in syngas and through a reduction-evaporation-anchoring mechanism, forming monodispersed ZnO x species with uniform thickness or dimension on ZnCr 2 O 4 up to a dispersion threshold ZnO loading of 16.0 wt% (ZnCr 2 O 4 @ZnO x ). A linear correlation between CO conversion and surface ZnO loading clearly confirms that the ZnO x overlayer on ZnCr 2 O 4 acts as the active structure for the syngas conversion, which can efficiently activate both H 2 and CO. The obtained ZnCr 2 O 4 @ZnO x catalyst combined with SAPO-34 zeolite achieves excellent catalytic performance with 64% CO conversion and 75% light olefins selectivity among all hydrocarbons. Moreover, the ZnO x overlayer is effectively anchored on the ZnCr 2 O 4 spinel, which inhibits Zn loss during the reaction and demonstrates high stability over 100 hours. Thus, a significant interface confinement effect is present between the spinel surface and the ZnO x overlayer, which helps to stabilize ZnO x active structure and enhance the catalytic performance.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION
·
2025
·Vol. 40
·期 3
·650-659
·
IF 1.1
Zheng Jingyan,Deng Yichao,Xu Mengying,Li Lian,Tremblay Pier-Luc,Zhang Tian
Ti 3 C 2 /BiOCl composite was successfully synthesized by combining BiOCl (BOC) with an exposed (110) crystal plane and Ti 3 C 2 using a simple hydrothermal process. The photocatalytic performance of produced composite was evaluated using the degradation of rhodamine B (RhB) and tetracycline hydrochloride (TCH) under visible light. The results demonstrated that Ti 3 C 2 /BOC composite had higher photocatalytic activity than pure BOC. The optimum incorporation amount of Ti 3 C 2 was 2 wt%. The photodegradation rate of 2 wt%-Ti 3 C 2 /BOC at 10 min to 20 mg/L RhB was 97.6%, which was much higher than that of BOC (75.3%). Similarly, the photodegradation rate of 2 wt%-Ti 3 C 2 /BOC to 10 mg/L TCH at 30 min was 80.4%, which was higher than BOC (68.1%). In addition, the prepared 2 wt%-Ti 3 C 2 /BOC composite also maintained good stability even after four cycles. Electrochemical impedance spectroscopy (EIS), transient photocurrent response (IT) and ultraviolet-visible diffuse reflectance spectroscopy (UV-vis) confirmed that the photoelectrochemical properties of 2 wt%-Ti 3 C 2 /BOC composite were significantly improved. On the basis of analyzing the action mechanism of photocatalyst, it was pointed out that ·O 2 - and h + were the main active substances in the photodegradation of RhB and TCH by 2 wt%-Ti 3 C 2 /BOC.
✓ 已验证
产品关联
DOI
高影响因子
Advanced Optical Materials
·
2025
·
IF 7.2
Chuyue Lei,Peiyu Liu,Ke Chen,Yue Liu,Zhengfeng Zhu,Jingxia Wu,Songlin Zhang,Bingjie Wang,Xuemei Sun,Peining Chen,Huisheng Peng
Displaying is an indispensable function for smart electronic textiles to achieve information interaction. Weaving electroluminescent fibers into textiles with designed patterns has proven as an efficient strategy to realize informative displaying. However, the design of multicolor electroluminescent fibers with a wide color gamut remains challenging for full-color display in electronic textiles. Herein, a multicolor electroluminescent fiber with high color purity has been proposed by incorporating light-conversion perovskite quantum dots with copper doped zinc sulfide (ZnS:Cu) electroluminescent layer. The color conversion of ZnS:Cu luminescent powder is facilitated through the narrow emission of perovskite quantum dots. The resultant luminescent fibers can emit a wide range of colors from blue, and green to red by varying halide compositions of perovskite quantum dots. The full width at half maximum of the emission peak is 23–37 nm, and the color gamut is increased to 102% of the National Television Standards Committee (NTSC) standard, which is superior to that of reported electroluminescent fibers. Such luminescent fibers can be manufactured at large scale with good reproducibility through a sequential solution deposition process. The luminescence remains stable and uniform after 10 000 cycles of bending and long-term storage up to 90 days. These luminescent fibers are readily woven or embroidered into electronic textiles for colorful information displaying.
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
·
2025
·
IF 8.5
Liang Wei,Keyu Qu,Jun Huang,Zhe Li,Xianyi Ning,Xiande Yang,Meng Li,Hongxi Zhang,Jing Yang
Lignin, one of the most prevalent organic polymers on Earth, is predominantly produced as a byproduct in the pulp and paper industry and is frequently disposed of as waste, posing substantial environmental challenges. The carbon‑carbon (C C) bonds in lignin are notably stable, complicating catalytic activation and cleavage. This study presents a significant advancement in the visible-light-driven cleavage of lignin's recalcitrant C C bonds (specifically the β-1 type) utilizing mixed-phase TiO 2 (P25) under ambient conditions. In contrast to conventional approaches that emphasize C O bond scission, the P25 catalyst achieves a 93 % conversion rate and 87 % selectivity towards benzaldehyde from 1,2-diphenylethanol without the use of noble metals or complex modifications. Density Functional Theory (DFT) calculations reveal that the rutile {110}/anatase {101} interface lowers the energy barrier for ·O₂ − generation, corroborating experimental selectivity trends. The synergy between these facets facilitates interfacial charge transfer, generating superoxide radicals (·O₂ − ) as the dominant reactive species for C C activation. When applied to native lignin, β-1 and β-β bonds have been completely broken, with over 70 % of β-5 bonds also cleaved. In contrast, only 3 % of β-O-4 bonds were broken, validating scalability beyond model compounds. This work provides a solar-driven, metal-free route to valorize lignin waste, addressing both environmental and energy challenges.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Science China-Materials
·
2025
·
IF 7.4
Li Junlong,Su Hao,Huang Wei,Chen Rong,Le Jianbi,Lin Min,Zhou Xiongtu,Zhang Yongai,Guo Tailiang,Wu Chaoxing
Alternating current (AC) driven quantum dots (QDs) light-emitting diodes have attracted widespread attention due to their unique optoelectronic performance. An AC-driven device with an interdigital electrode structure is proposed. The devices exhibit AC electroluminescence (EL) with driving frequency and different frequency responses due to the introduction of P(VDF-TrFE-CFE). The optical and electrical characteristics of the device under various applied voltages and driving frequencies are studied. Unlike the conventional driving mode where carriers are continuously injected into the device, the carriers undergo periodic motion under an AC field. Therefore, there exists an optimal driving frequency that maximizes the EL intensity of the device. Based on the experimental results, the operational mechanism of the device is analyzed, and a carrier transport model is proposed to elucidate the underlying factors contributing to the presence of an optimal driving frequency. Moreover, a model for the device is proposed and its accuracy is verified. From a circuit perspective, the EL behavior of devices at various driving frequencies is analyzed, thereby further confirming the accuracy of the proposed device working mechanism. We believe the work can provide guidance for obtaining advanced QD-based light-emitting technology.
✓ 已验证
产品关联
DOI
高影响因子
ENERGY CONVERSION AND MANAGEMENT
·
2025
·
IF 10.9
Tiantian Yan,Bachirou Guene Lougou,Boxi Geng,Boshu Jiang,Danni Ma,Shuo Zhang,Azeem Mustafa,Wei Wang,Achraf Ghorbal,Piotr Łapka,Yong Shuai
Thermochemical energy storage offers high energy density and efficiency for concentrated solar power systems, making it a promising solution for sustainable energy storage. Cobalt oxide is particularly attractive for thermochemical energy storage due to its high energy storage capacity and excellent cycling stability. However, its performance is limited by redox thermal hysteresis and a significant temperature gap between reduction and oxidation processes. To address these challenges, this study investigates the effect of copper, manganese, and iron doping on cobalt oxide to enhance its solar light absorption and energy storage properties. The doped compounds were synthesized using the sol–gel method and thoroughly characterized using X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis and differential scanning calorimetry, and ultraviolet–visible spectroscopy. Key performance metrics, including oxygen storage capacity, energy storage density, and redox thermal hysteresis, were systematically analyzed. Among the tested materials, copper doping at x = 0.5 was most effective, reducing thermal hysteresis from 37 ℃ to 28 ℃ and enhancing solar absorption by 78 %. These improvements are attributed to increased oxygen vacancies and modified cation valence states, which enhance redox kinetics and light-harvesting efficiency. Additionally, the copper-doped cobalt oxide demonstrated excellent cycling stability over 20 redox cycles, highlighting its potential for high-efficiency thermochemical energy storage applications. This study provides valuable insights into the design and optimization of advanced thermochemical energy storage materials, contributing to the development of next-generation renewable energy storage technologies.
✓ 已验证
产品关联
DOI
高影响因子
BIOMATERIALS
·
2013
·
IF 7.604
Jie Cao,Shanshan Huang,Yuqi Chen,Siwen Li,Xin Li,Dawei Deng,Zhiyu Qian,Liping Tang,Yueqing Gu
In this manuscript, a near-infrared (NIR) light-breakable amphiphilic block copolymer N -succinyl- N ′-4-(2-nitrobenzyloxy)-succinyl-chitosan micelles (SNSC), containing light-sensitive triggering group 2-nitrobenzyl alcohol on the hydrophobic block, was developed. The UV–Vis absorption spectra, Fourier Transform Infrared (FTIR) spectra, and 1 H nuclear magnetic resonance ( 1 H NMR) spectra were characterized to confirm the successful synthesis of the micelles. Two-photon photolysis of SNSC micelles was displayed by transmission electron microscopy (TEM). By encapsulating a NIR dye cypate (Ex/Em: 780/808 nm) into the hydrophobic core of the micelles, the dissociation of the micelles under NIR illumination was greatly accelerated, enabling a controlled fast release of co-loaded hydrophobic species in the micelles. In vivo distribution and acute toxicity of the NIR light-sensitive micelles were also investigated to verify the low cytotoxicity of the micelles. Results indicate that this system provides an efficient method to surmount the drawback of UV or visible light-responsive polymeric systems for controlled drug release in deep tissues.
✓ 已验证
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2016
·
IF 2.758
Jiang Cheng,Xuelian Yan,Qionghua Mo,Bitao Liu,Jun Wang,Xin Yang,Lu Li
A g-C 3 N 4 /BiVO 4 composite photocatalyst with enhanced photocatalytic activity and photoelectrochemical (PEC) performance was fabricated via a simple synthesis method with BiVO 4 nanofibers as starting material. The materials were characterized with different techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), UV–vis diffuse reflectance spectroscopy (DRS), Fourier transform infrared spectroscopy (FT-IR), N 2 absorption–desorption isotherm (BET) and photoluminescence spectroscopy (PL). The results showed that this synthesis method is effective to make a composite. The photocatalytic evaluation indicates that the photocatalytic activity of the g-C 3 N 4 /BiVO 4 photocatalyst for methylene blue (MB) was about 8 and 7 times higher than that of pure BiVO 4 and g-C 3 N 4 , respectively. This should be due to the enhanced light harvesting ability and to the effective electron transfer during the photocatalytic reaction.
✓ 已验证
DOI
高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
·
2021
·
IF 3.498
Li Zeng,Tongjiang Peng,Hongjuan Sun,Jingjie Yang,Yao Li,Yating Qin
A series of Fe-doped LaNi 1-x Fe x O 3 perovskite oxide photocatalytic materials was prepared using a sol-gel method. The phase composition and morphology of LaNi 1-x Fe x O 3 samples were characterized via X-ray diffraction, scanning electron microscopy, transmission electron microscopy , X-ray photoelectron spectroscopy, and other analytical methods. The photocatalytic performance of the samples was tested by assessing the degradation rate of methyl orange. According to the results, Fe-doping caused the lattice distortion of the initially cubic of LaNiO 3 to a rhombohedral crystal system . In turn, partial substitution of Ni with Fe was found to increase the amount of oxygen vacancies , resulting in the higher mobility of lattice oxygen and thus improving the photocatalytic activity . The best photocatalytic performance was found in a LaNi 0.95 Fe 0.05 O 3 sample with a 5% Fe dopant concentration. Furthermore, the degradation rate of methyl orange in LaNi 0.95 Fe 0.05 O 3 within 120 min of visible light irradiation was as high as 98.89%, and its good degradation effect even with respect to other organic dyes such as methylene blue and rhodamine B. Finally, LaNi 0.95 Fe 0.05 O 3 was shown to maintain high photocatalytic activity and excellent recyclability even after numerous operation cycles.
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）