Journal of Materials Chemistry C
·
2026
·
IF 5.1
Yuxin Huang,Pengfan Li,Xuewei Yu,Lin Sun,Yanfeng Jiang,Pingping Yu
Organic-inorganic hybrid perovskite ferroelectrics with a two-dimensional (2D) structure offer a unique pathway for selfpowered polarization detection, yet their performances is often limited by insufficient anisotropic ratios and carrier separation efficiency. 1D Te microwires exhibits strong broad spectral response, high carrier mobility and pronounced structural anisotropy. In this study, 2D single crystal (EA)2(MA)2Pb3Cl10 (EMPC3) with millimeter scale was synthesized by temperature-lowering method from a saturated solution. The Te microwires prepared by chemical vapor deposition (CVD) method was coated on EMPC3 crystal to obtain the Te/EMPC3 heterojunction. Due to the synergistic effect of the ferroelectric photovoltaic effect of EMPC3 and the built-in electric field of heterojunction, the Te/EMPC3 device exhibits significantly enhanced self-powered photoresponse performances in the 280-1006 nm, showing the highest peak responsivity in the solar blind ultraviolet region. Te/EMPC3 device at 280 nm and 0 V exhibits a higher on/off ratio up to 103, responsivity of 2. 34 A W -1 , specific detectivity of 4.5×10 12 Jones, rise/decay time of 43/33 ms, and dichroic ratio of 3.0, respectively, compared to EMPC3 PD at 1.2 V (on/off ratio of 178, 0.95 A W -1 , 1.1×10 12 Jones, response time of 105/103 ms, and dichroic ratio of 1.8). The significantly enhanced anisotropy ratio renders the device highly promising for applications in polarization imaging and dual-wavelength encrypted communications. This demonstrates the potential of the heterojunction system as a new platform for next-generation, self-powered, polarization-sensitive optoelectronics.
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高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Ying Wang,Shanze Liu,Fangbiao Wang,Xin Fan,Qi Chen,Youjin Zheng
The high-pressure effect can effectively regulate the bandgap width of thermoelectric materials, thus optimizing the material properties. In this study, the high temperature and high pressure (HPHT) technique was employed to synthesize In-filled, Te/S double-substituted skutterudite-based thermoelectric materials. The effects of synthesis pressures ranging from 2.0 to 3.5 GPa on their phase structure, microstructure, and thermoelectric properties were systematically investigated. XRD and EDS analyses confirm the phase-pure synthesis of In 0.05 Co 4 Sb 11.3 Te 0.6 S 0.1 . The experimental results combined with first-principles calculations indicate that the pressure-induced bandgap widens from 0.245 eV at 2.0 GPa to 0.270 eV at 3.0 GPa, resulting in not only an exponential decay of the conductivity but also a significant increase in the absolute value of the Seebeck coefficient. The analysis based on the Callaway model demonstrates that introducing In, Te, and S elements strengthens grain boundaries, increases point defects, and enhances resonance scattering, thereby effectively reducing lattice thermal conductivity. At 773 K, the 3.0 GPa sample exhibits the lowest thermal conductivity of 1.56 Wm −1 K −1 and a maximum zT value of 1.20, representing a 40.18 % increase over that of the sample synthesized at 2.0 GPa and an 11.02 % increase over that of the Co 4 Sb 11.3 Te 0.6 S 0.1 sample. In addition, the sample synthesized at 3.5 GPa demonstrates excellent mechanical performance, exhibiting a Vickers hardness of 11.12 GPa. New strategies have been provided for the development of materials with both high thermoelectric and mechanical properties.
研究领域:
材料科学
·
凝聚态物理
·
无机非金属材料
·
能源材料
·
热电转换
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CHEMICAL ENGINEERING JOURNAL
·
2026
·
IF 13.2
Weixin Zhang,Xin He,Ting Zhang,Haomiao Li,Shuai Yan,Xianbo Zhou,Yewei Guo,Min Zhou,Wei Wang,Kai Jiang,Kangli Wang
Liquid metal batteries (LMBs) are an attractive large-scale energy storage technology due to their ultra-long service life, high safety, and exceptionally low comprehensive cost. Te-based LMBs are regarded as one of the most promising directions for developing high-energy-density LMBs. However, their practical application is still hindered by low Coulombic efficiency and short cycle life, primarily due to the shuttle effect induced by the dissolution of reaction products. Herein, the strategy of employing transition metal (Cu) with strong polar interactions with lithium polytellurides as the alloying element to construct cathode is proposed. Benefiting from the strong adsorption and conversion-promoting capabilities of in-situ generated metal tellurides (CuTe and Cu 4 Te 3 ) towards lithium polytellurides, the shuttle effect is significantly suppressed. The designed Li||Te 7 Cu 3 LMBs deliver a stable cycling performance of over 848 cycles with a coulombic efficiency exceeding 97%, ultrahigh energy density (465 Wh kg −1 ) and outstanding rate performance (2.1C, >90% capacity retention). This study opens up new avenues for designing high-performance Te-based LMB cathodes.
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ACS Photonics
·
2025
·
IF 6.7
Lijian Li,Peng Guo,WenJie Li,Yun Wei,QinZhi Zhao,Peng Wan,Caixia Kan,Da Ning Shi,Mingming Jiang
Weyl semiconductor Te holds great promise for next-generation optoelectronics due to its ultrahigh carrier mobility and unique topological surface states. However, its practical application is hindered by challenges such as the lack of scalable wafer-scale manufacturing methods for uniform films and high dark current. This study reports an in situ deposition strategy enabling wafer-scale fabrication of 64-pixel GaAs/Te van der Waals heterojunction (vdWH) arrays, achieving ultrawide-band photoresponse from solar-blind to near-infrared. Especially upon 1050 nm illumination, a GaAs/Te unit device exhibits superior performance, including an impressive responsivity of 55 mA/W, a specific detectivity of 2 × 1012 Jones, and a fast response speed of 2.6/5.1 ms at 0 V bias. Owing to the strong in-plane anisotropy of the Te layer, the detector achieves an anisotropy ratio of 2.57 at 1050 nm. The enhanced performance primarily stems from Te’s topological surface state, which enables robust interlayer coupling with GaAs while effectively suppressing interfacial defects. The GaAs/Te array architecture, enabled by its remarkable spatial uniformity in the pixel arrangement, demonstrates exceptional potential for polarization-encrypted imaging and pixel-level multispectral fusion technologies. Significantly, the implementation of topological vdW contact engineering, coupled with wafer-scale synthesis of Weyl semiconductor Te, establishes a transformative platform for advancing next-generation optoelectronic systems and CMOS-integrated photonic devices.
研究领域:
光电子学
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拓扑材料
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纳米电子学
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异质结构工程
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光电探测器
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高影响因子
Nano Energy
·
2023
·
IF 17.6
Xiangcong He,Jinju Zheng,Tao Yang,Deliu Ou,Chris R. Bowen,Songhan Shi,Qiaochu Chen,Hui Fu,Shuangwu Huang,Yumin Ye,Xiaocheng Huang,Wenna Liu,Weiyou Yang
Piezoelectric nanogenerators (PENGs), which operate based on mechanical-to-electrical energy conversion, have been widely explored for exciting applications in modern devices such as wearable electronics , self-powered sensors, and energy harvesters . Herein, we report on high-performance PENGs based on Cs 2 Ag 0.3 Na 0.7 InCl 6 double perovskite (CDP) within a polyvinylidene fluoride (PVDF) matrix, which exhibit enhanced polarity due to rationally designed Zr/Te codoping. As a proof of concept , the resultant PENGs based on Zr/Te codoped CDP@PVDF deliver an excellent piezoelectric output, with a maximum open-circuit voltage and short-circuit current density of 67 V and 18 μA·cm −2 . This level of performance is ∼19 and ∼12 times higher than PVDF-based PENGs with no CDP, and ∼2 and ∼4 times higher than CDP@PVDF-based PENGs without doping or with single Te doping, and ∼1 and ∼2 times higher than CDP@PVDF-based PENGs with single Zr doping, respectively. Moreover, the as-assembled PENGs exhibit impressive potential in wearable energy harvesters, motion sensors, and DC-power devices with robust stability, underscoring their bright future toward practical applications.
研究领域:
材料科学
·
能源技术
·
纳米技术
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Penglu Yu,Linan Feng,Wenxin Tang,Chan Liu,Jin-le Lan,Yuan-Hua Lin,Xiaoping Yang
As for the self-supporting composite films, it is significant to develop a structural design that allows for excellent flexibility while reducing the negative effect on thermoelectric (TE) properties. Herein, a robust, flexible TE film was fabricated by in situ chemical transformation and vacuum-assisted filtration without any organic solvents involved. The performance of the films was further optimized by adjusting the Ag/Te ratio and post-treatment methods. Owing to the semi-interpenetrating nanonetwork structure formed by AgxTe nanowires and bacterial cellulose, the obtained TE film displayed a high tensile strength of ∼78.4 MPa and a high power factor of 48.9 μW m–1 K–2 at room temperature. A slight electrical conductivity decrement of the TE film in flexible test (∼2% after 1000 bending cycles) indicates an excellent flexibility. Finally, a TE bracelet was assembled to harvest body heat energy, and a steady current of ∼2.7 μA was generated when worn on the wrist indoors. This work provides a reference for the structural design and practical application of flexible TE films.
研究领域:
材料科学
·
能源工程
·
纳米技术
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DOI
PubMed
高影响因子
Food Bioscience
·
2022
·
IF 5.318
Jingjing Liu,Yan Chen,Guiming Fu,Yanru Chen,Yin Wan,Mengfei Deng,Wenqin Cai,Mengxiang Li
Wickerhamomyces anomalus makes a special contribution to the esters flavor of Chinese Baijiu . This study set out to investigate whether W. anomalus NCUF304.1 could improve the flavor of ethyl esters of Te-flavor Baijiu Jiupei (TFBJP). The days 10–30 of the Te-flavor Baijiu brewing stage was the key period for microorganisms to produce ethyl ester compounds. Among them, the content of ethyl acetate in the strengthening group of Jiupei with additional W. anomalus NCUF304.1 was significantly higher ( P < 0.05) than in the control group of Jiupei on days 10–20. Also, there was no significant difference in ethyl acetate content between the two samples until day 30 of fermentation. In addition, the contents of ethyl butyrate , ethyl lactate and ethyl hexanoate in TFBJP strengthened with W. anomalus NCUF304.1 were found to increase by 0.54, 3.27 and 0.58 mg/kg, respectively. These findings evidenced the ability of W. anomalus NCUF304.1 in the Te-flavor Baijiu brewing for improving the flavor of ethyl esters.
研究领域:
食品科学
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微生物学
·
酿酒技术
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高影响因子
Small
·
2022
·Vol. 18
·期 27
·2201585
·
IF 15.153
Tingting Wang,Guangxu Xiao,Qianglan Lu,Yue Zhou,Siyu Wang,Xiaoyang Liang,Yilin Song,Min Xu,Yan Zhu,Nan Li
To overcome the autophagy compromised mechanism of protective cellular processes by “eating”/“digesting” damaged organelles or potentially toxic materials with autolysosomes in tumor cells, lysosomal impairment can be utilized as a traditional autophagy dysfunction route for tumor therapy; however, this conventional one-way autophagy dysfunction approach is always limited by the therapeutic efficacy. Herein, an innovative pharmacological strategy that can excessively provoke autophagy via endoplasmic reticulum (ER) stress is implemented along with lysosomal impairment to enhance autophagy dysfunction. In this work, the prepared tellurium double-headed nanobullets (TeDNBs) with controllable morphology are modified with human serum albumin (HSA) which facilitates internalization by tumor cells. On the one hand, ER stress can be stimulated by upregulating the phosphorylation eukaryotic translation initiation factor 2 (P-eIF2α) owing to the production of tellurite (TeO 3 2− ) in the specifical hydrogen peroxide-rich tumor environment; thus, autophagy overstimulation occurs. On the other hand, OME can deacidify and impair lysosomes by downregulating lysosomal-associated membrane protein 1 (LAMP1), therefore blocking autolysosome formation. Both in vitro and in vivo results demonstrate that the synthesized TeDNBs-HSA/OME (TeDNBs-HO) exhibit excellent therapeutic efficacy by autophagy dysfunction through ER stress induction and lysosomal damnification. Thus, TeDNBs-HO is verified to be a promising theranostic nanoagent for effective tumor therapy.
研究领域:
癌症治疗
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纳米技术
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药理学
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细胞生物学
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分子生物学
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DOI
PubMed
高影响因子
ACS Sustainable Chemistry & Engineering
·
2024
·
IF 7.1
Yanyan Li,Haoran Guo,Jiayang Zhao,Kanglei Pang,Rui Song
Surface reconstruction generates genuine active phases under an electrochemical oxygen evolution reaction (OER); however, most OER catalysts exhibit slow self-reconstruction due to their relative stability in electrochemistry. Therefore, it is highly essential to rationally design precatalysts capable of rapidly generating more active OER species. Herein, a novel reconfigurable Te-doped NiFe layered double hydroxide (Te-NiFe LDH/NF) precatalyst is prepared, which exhibits ultrafast and in-depth self-reconstruction, significantly enhancing the activity for the OER step. By employing various in/ex situ techniques and theoretical calculations, the distinctive structure of Te-NiFe LDH/NF along with the alkaline electrolyte are identified as pivotal factors for facilitating the phase transition. The presence of Te cations can effectively reduce the energy barrier, thereby providing the feasibility of continuous reconstruction, while the alkaline electrolyte supplies a complement of OH– to form highly active oxyhydroxides. Besides, Te is doped in situ into the NiFeOxHy lattice (Te-NiFeOxHy/NF), leading to optimized binding energies of the OER intermediates and reduced energy barriers for the rate-determining step (RDS), ultimately enhancing the OER performance. As such, the self-restructured Te-NiFeOxHy/NF only required 208 and 310 mV to achieve 10 and 500 mA cm–2, respectively, together with high current stability for 300 h. This study provides a rational design strategy to develop highly efficient electrocatalysts for the OER through surface reconstruction.
研究领域:
材料科学
·
电化学
·
催化
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高影响因子
CHEMISTRY OF MATERIALS
·
2026
·Vol. 38
·期 14
·7286-7297
·
IF 7.1
Wang Shaoqin,Fu Qingqiao,Zhao Fan,Li Yang,Zhang Jiye,Luo Jun
The nominal compounds GeBi 4 X 7 and GeBi 6 X 10 ( X = Se, Te) exhibit pronounced cation disorder, posing challenges
in achieving single-phase materials at their nominal stoichiometries
and thereby complicating functional optimization. In this work, through
controlled cation composition regulation, we successfully synthesize
single-phase compounds derived from nominal GeBi 4 Te 7 and GeBi 6 Te 10 , eliminating the secondary
phases previously reported in these compounds. The actual stoichiometries
of these single phases are determined to be Ge 0.75 Bi 4.25 Te 7 and Ge 0.65 Bi 6.35 Te 10 , respectively. Additionally, two isostructural single-phase
compounds are discovered in the Se-based counterparts, with actual
compositions of Ge 0.72 Bi 4.28 Se 7 and
Ge 0.62 Bi 6.38 Se 10 . Rietveld refinement
analyses reveal that the cation layers adjacent to the van der Waals
gaps are preferentially occupied by Bi, whereas cation disorder predominantly
arises in the central mixed-cation layer within the GeBi 2 X 4 stack. This layer-selective preference,
combined with cation disorder enabled by the nearly identical electronegativities
of Ge and Bi, drives the overall stoichiometry toward the Bi-rich
regime. With respect to thermoelectric properties, the complex-stacking
single-phase materials derived from nominal GeBi 4 X 7 and GeBi 6 X 10 show distinct advantages over the simple-stacking GeBi 2 X 4 counterparts and conventional
Bi 2 X 3 matrices. Experimental
results indicate that the incorporation of additional Bi 2 X 3 stacks markedly enhances phonon scattering
and reduces the lattice thermal conductivity, while exerting minimal
impact on carrier mobility. Of particular significance, the single-phase
material Ge 0.65 Bi 6.35 Te 10 derived
from nominal GeBi 6 Te 10 achieves a remarkably
low lattice thermal conductivity of ∼0.35 W m –1 K –1 and a dimensionless thermoelectric figure
of merit of ∼0.62 at 525 K. Predictions based on the single
parabolic band model indicate a substantial potential for improving
the thermoelectric performance of Ge 0.65 Bi 6.35 Te 10 through the optimization of carrier concentration,
suggesting that this compound represents a promising alternative to
the traditional Bi 2 Te 3 matrix.
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高影响因子
CHEMICAL ENGINEERING SCIENCE
·
2026
·
IF 5.1
Feifei Li,Xinyu Lu,Dongbo Xu,Di Li,Yuanyong Huang,Weidong Shi
Despite extensive efforts over four decades, the development of efficient NIR-driven photocatalysts for solar H 2 production remains elusive. Current NIR-activated systems are limited by inferior performance, significant photocorrosion, and reliance on scarce noble metals or toxic dyes. Notably, NIR-activated systems based on non-noble metals that simultaneously exhibit high activity and long-term stability represent a critical gap. In this work, we present a Te-doping-induced band-structure optimization strategy, whereby Te-doped ZnIn 2 S 4 nanoflowers are synthesized via a one-step hydrothermal method, enabling a narrow-bandgap semiconductor to achieve efficient NIR-driven (λ > 800 nm) H 2 production without noble-metal co-catalysts through Urbach‑tail absorption. Te atom incorporation not only broadens light absorption and effectively narrows the bandgap through the formation of intermediate gap states, but also induces a redistribution of local charges, which facilitates the separation and transport of charge carriers. As expected, the optimized Te–ZnIn 2 S 4 catalyst delivers a remarkable hydrogen evolution rate of 128 μmol·g ‒1 ·h ‒1 under NIR irradiation (λ > 800 nm), which is 10 times higher than that of its pristine counterpart and outperforms all previously reported non‑noble‑metal NIR‑responsive photocatalysts under the same conditions. Impressively, the optimally Te-doped ZnIn 2 S 4 retains a considerable H 2 evolution rate of 8.57 μmol·g ‒1 ·h ‒1 under extended-wavelength NIR light (λ = 940 nm), demonstrating its exceptional capability to harvest low-energy photons for water splitting. This work highlights that rational band‑structure engineering through element doping can effectively extend the photoresponse of ZnIn 2 S 4 into the deep NIR region via Urbach‑tail absorption, thereby enabling efficient H 2 evolution without the need for noble‑metal co‑catalysts.
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高影响因子
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2026
·Vol. 46
·期 14
·118532
·
IF 6.3
Jingdan Lei,Xiaoyun Yang,Mengxiang Wu,Xiwei Zhang,Di Yuan,Huijuan Geng,Chong Han,Zhaoyang Han,Zhenjie Tang,Chao Wang
Mg 3 (Sb, Bi) 2 is a promising mid- to low- temperature thermoelectric material owing to its earth-abundant composition. However, its performance is limited by low intrinsic carrier concentration and the inherent trade-off among thermoelectric parameters. Herein, large-grain sized Mg 3.01 Sb 1.3 Bi 0.69 Te 0.01 Ho 0.07 are fabricated via melting method at 1423 K using a tantalum-sealing technique. A high peak zT of 1.6 at 700 K is realized, along with a peak power factor of 24 μW cm −1 K −2 and a low κ L of 0.41 W m −1 K −1 . The superior performance originates from synergistic manipulation of electron and phonon transport. Ho doping optimizes carrier concentration up to 7.2 × 10 19 cm −3 due to its small electronegativity difference with Mg, while the large grain ensures high carrier mobility. Simultaneously, atomic-scale alloy disorder suppresses phonon propagation, resulting in a substantial reduction in lattice thermal conductivity. This work highlights the great potential of synergistic transport engineering for high-performance Mg 3 (Sb, Bi) 2 -based thermoelectric materials.
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高影响因子
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