CURRENT APPLIED PHYSICS
·
2023
·
IF 2.4
WenXin Zhang,Hao Li,Haofei Cong,Ruifu Zhou,Yuanbin Qin,Peilong Xu,Xuhai Liu,Fengyun Wang
One-dimensional wide band-gap metal oxide semiconductors demonstrate enormous potential in high-performance ultraviolet photodetectors. Here, via tuned zinc oxide (ZnO) concentration ratio and heterojunction structure as well as decent V TH value, we electrospun tin zinc oxide (SnZnO X ) nanowires for photoelectronic conversion function. The constructed optimized photodetectors based on Sn 8 Zn 2 O X nanowires can exhibit a remarkable detectivity of 1.77 × 10 16 Jones, excellent responsivity of 2.23 × 10 3 A/W and relative high sensitivity over 10 4 . In addition to the excellent photodetection performance, Sn 8 Zn 2 O X nanowire devices exhibit nonvolatile memory effect , which can maintain the light-induced low resistance state at 5 V without light. Moreover, a voltage of 30 V was applied to Sn 8 Zn 2 O X nanowires devices to realize light-writing state switching to bias-erasing state, and the device could come back to their initial high resistance state. These results indicate SnZnO X nanowires devices possess a tremendous potential in the circuit design of the artificial visual system.
研究领域:
材料科学
·
纳米电子学
·
光电子学
·
半导体器件
·
人工视觉系统
✓ 已验证
DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
·
2018
·Vol. 29
·期 23
·19614-19619
·
IF 2.324
Hu Yiwei,Chen Xinhang,Ren Xiaohui,Huang Zongyu,Qi Xiang,Zhong Jianxin
Tin disulfide (SnS 2 ) has been attracted intensive attention in the field of photoelectric conversion due to its appropriate band gap and glorious electronic mobility. The hexagon SnS 2 nanosheets has been successfully integrated through a facile one-pot hydrothermal method. SEM images, Raman spectra, atomic force microscope and X-ray diffraction patterns are measured to carry out to investigate the morphologies and microstructures of SnS 2 nanosheetsm, confirming a good crystallized SnS 2 . Then, the photochemical activity of as-prepared SnS 2 nanosheets were tested in the electrolyte of Na 2 SO 4 . Photoelectrochemical tests demonstrate that the photocurrent density of as-prepared hexagon SnS 2 nanosheets (1.66 µA/cm 2 at a light intensity of 140 mW/cm 2 ) is hugely increased with increasing light intensity. Furthermore, after 50 cycles, the photocurrent density does not change significantly, indicating that the as-prepared SnS 2 nanosheets possesses superior stabilities. The outstanding photocatalytic performances of SnS 2 nanosheets are not only resulted from its huge specific surface area, which can harvest more light and provide more active sites, but also attributed to its superior charge mobility, which can facilitate the separation photogenerated electron–hole pairs and the charge transfer between SnS 2 nanosheets and the electrode. The most important is that our work reveals the hexagonal SnS 2 nanosheets not only possess superior photoelectrochemical properties, but also have great potential applications in energy conversion and photodetector fields.
研究领域:
材料科学
·
光催化
·
能源转换
·
纳米材料
·
光电化学
✓ 已验证
DOI
高影响因子
Nano Research
·
2023
·Vol. 17
·期 4
·3035-3042
·
IF 9.9
Bian Chenchen,Wang Jinhui,Liu Huanhuan,Yan Yin,Zhang Ping,Yang Weilong,Jia Sensen,Guo Xiaodan,Cai Guofa
Electrochromic devices (ECDs) have been extensively investigated as promising candidates in broad cutting-edge applications, such as smart windows, electronic labels, adaptive camouflage, etc. However, they have suffered from either inadequate color variations or poor cycling stability for a long time. Herein, we developed a general strategy to boost the cyclic stability and enrich the color variations of ECDs by scrupulous design of the composition and nanostructure of electrodes, in which porous tin oxide (SnO 2 ) nanosheets serve as the scaffold and typical metal oxides or conducting polymers as the active electrochromic materials. Various electrochromic composite materials, including polyaniline (PANI)@SnO 2 , V 2 O 5 @SnO 2 , and WO 3 @SnO 2 heterostructured nanoarrays were prepared by the facile wet-chemical method. These composite electrodes exhibit remarkable electrochromic performances, e.g., superior cycling stability (more than 2000 cycles), rich color variations (more than 5 colors for PANI@SnO 2 ), and enlarged optical modulation. These excellent performances account for the heterogenous porous nanoarrays, which not only facilitate the intercalation/extraction of ions but also relieve the stress generated during the electrochemical process. In addition, diverse prototypes of complementary multicolor ECD with excellent cycling stability (over thousands of cycles) and rich color variations (8 colors) were realized for the first time. We believe that our work put forward a general strategy for developing high-quality multicolor complementary electrochromic devices.
研究领域:
材料科学
·
纳米技术
·
电化学
·
光电子学
✓ 已验证
DOI
高影响因子
CHEMISTRY OF MATERIALS
·
2021
·
IF 9.811
Shixun Wang,Stephen V. Kershaw,Andrey L. Rogach
In this study, conventional saturation recrystallization process was found to produce a complex mixture instead of pure Dion-Jacobson (DJ)-phase ODASnBr4 perovskite single crystals (ODA denotes protonated 1,8-octanediamine), which originated from the strong hydrogen bonding in diammonium cations and the interaction with polar hydrogen bromide solution, resulting in the formation of impurities. Thus, additional primary alcohols, including ethanol, 1-propanol, 1-butanol, and 1-pentanol, were introduced to treat that mixture with an attempt to remove undesired byproducts, while also resulting in the molecular doping and enhanced crystallinity of DJ perovskites. The formation of O–H...Br hydrogen bonds between [SnBr6]4– octahedron slabs and alcohols promoted the lattice coordination of the perovskites and the removal of undesired surface-absorbed water and byproducts, thereby achieving ODASnBr4[alcohol] perovskite microcrystals with high photoluminescence quantum yield close to 90%. Their thermal stability and oxidation resistance were also significantly enhanced as a result of improved lattice crystallinity and surface capping by dopants. The strategy introduced here offers prospects for further development of lead-free DJ perovskite materials with strong emissions and reliable stabilities.
研究领域:
材料科学
·
化学
✓ 已验证
DOI
高影响因子
ACS Omega
·
2021
·
IF 3.512
Xianyu Liu,Tayyaba Najam,Ghulam Yasin,Mohan Kumar,Miao Wang
Tin chalcogenides are considered as promising anode materials for lithium-ion batteries (LIBs) due to their high theoretical lithium-storage capacity. Herein, we have successfully synthesized the composites of tin chalcogenides and graphite, that is, SnS/C, SnSe/C, and SnS0.5Se0.5/C, via a simple one-pot solid-state method. During the electrochemical test, they exhibit excellent lithium-storage ability and cyclic performance as the anode electrodes of LIBs due to the introduction of carbon. In particular, (i) SnS/C displayed a high specific capacity of 875 mAh g–1 at 0.2 A g–1 over 200 cycles; (ii) SnSe/C presents 734 mAh g–1 at 0.2 A g–1 after 100 cycles, and it delivers 690 mAh g–1 at 1.0 A g–1 over 300 cycles; and (iii) the SnS0.5Se0.5/C composite electrode delivers a specific capacity of 643 mAh g–1 at 0.5 A g–1 over 150 cycles. Furthermore, another series of tin-based composites have also been successfully fabricated (i.e., Sn/C, SnS2/C, SnSe2/C, and SnTe/C), showing the general applicability of the synthetic route applied here. Our synthetic approach demonstrates a promising route for the large-scale production of high-performance tin chalcogenides/C anode materials for LIBs and other battery systems (e.g., Na-ion and K-ion batteries).
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
DOI
高影响因子
Nanomaterials
·
2026
·Vol. 16
·期 14
·861
·
IF 4.8
Bing Yang,Qiao Guo,Hongmin Li,Gang He,Shanshan Jiang,Longwei He,Xiang Li,Peng Yu
In this work, a post-annealing rapid cooling and aging treatment process is innovatively proposed to build high-performance zinc tin oxide (ZTO) thin-film transistors. The relaxation effect on the abundant oversaturated oxygen vacancy deep-level traps contributes to the shallow donor formation during the aging period. The TFTs aged in an air environment for 10 days possess significantly improved electrical performance, including a clearly increased on/off current ratio of 7 × 106from 2 × 104and a markedly increased saturation mobility of 5.9 from 2.2 cm2·V−1·s−1, verifying the facile method to improve the electrical property of polycrystalline TFTs, and the method has been investigated using the grain boundary defect relaxation model and energy band theory. It is worth mentioning that the TFTs aged under vacuum conditions realized more effective regulation and control on off-state current and demonstrated a wider aging time window. The distinctive illumination interface stability was studied in depth using a charge trapping model and electron–hole pair model, which embody the potential application in photoelectric detectors.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
VACUUM
·
2026
·
IF 4.3
Xiaojing Fu,Yaping Fan,Guoxian Jiang,Pingping Sun,Changsheng Zheng,Yingjie Si,Yong Wan,Qiang Li
The addition of CPCa to PAO4 oil significantly reduced friction and wear in TiN/steel tribopair. Under 0.9 GPa and 120 mm/s, PAO4 containing 2.5 wt% CPCa achieved an ultralow COF (∼0.008) and wear rate (7.0 × 10 −8 mm 3 /N·m). Although CPCa improved the tribological properties of steel/steel tribopair relative to pure PAO4, it still yielded COF and wear rate values that were one and two orders of magnitude higher, respectively, than those of the TiN/steel tribopair. To elucidate this disparity, we conducted a systematic comparison of both tribopairs under varied conditions. Advanced surface analysis (XPS, Raman, FTIR) revealed the formation of carbon-based tribofilms exhibiting exceptional lubricating characteristics, particularly on TiN surfaces. The results indicate that the tribochemical transformation of CPCa is governed by stress-induced ring opening. The kinetics of carbon-based tribofilm formation show a pronounced dependence on the counterface, with the TiN surface facilitating faster film formation and sustaining ultralow friction.
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2026
·
IF 9.2
Rong Wang,Xinyi Yuan,Qingxiang Ma,Yan Wang,Jucang Ke,Xiaopeng Li,Xinhua Gao,Jian Sun,Tian-sheng Zhao
The oxidative dehydrogenation of propane with CO2 (CO2-ODHP) technology is recognized as a promising new route for propylene production, owing to its advantages in energy saving, high yield, and environmental friendliness. However, the inherent complexity of the reaction system and catalyst structures has led to ongoing debates regarding its activation mechanisms and reaction pathways. Thus, the development of high-performance catalysts capable of synergistic activation of propane and CO2 with simultaneous high propylene selectivity continues to be a key objective and challenge. This study aimed to investigate the catalytic activity of Pt-based catalysts supported on CeOx nanoclusters for the CO2-ODHP reaction, from the perspective of enhancing CO2 adsorption and activation. Experimental results demonstrate that the oxygen-rich defect structure on the CeOx nanoclusters significantly promotes the activation and dissociation of CO2. Furthermore, the incorporation of Sn effectively enhances the dispersion of Pt species and their surface electron density, thereby further strengthening the strong adsorption and activation of propane while simultaneously facilitating the desorption of propylene. Following continuous operation for 5 h at 550 °C, the 0.5Pt2.0Sn/CeOx-SiO2 catalyst demonstrated superior catalytic performance, achieving a propane conversion of 45.3% and a propylene selectivity of 93.6%. Based on in situ DRIFTS analysis, a possible reaction mechanism for CO2-ODHP on this catalyst is proposed. The findings of this study provide crucial theoretical guidance and practical references to further advance high-performance Pt-based catalysts for CO2-ODHP reactions.
✓ 已验证
DOI
高影响因子
Laser & Photonics Reviews
·
2026
·
IF 9.7
Zeyu Miao,Yinghui Wang,Lei Wang,Wenxu Yin,Ning Wang,Tom Wu,Xuyong Yang,Xiaoyu Zhang,Jiaqi Zhang
Two-dimensional (2D) tin (Sn)-based perovskites are promising lead-free emitters for red light-emitting diodes (LEDs), but their intrinsically low carrier mobility and poor film morphology severely limit large-area performance. Here, we introduce a one-step antisolvent-assisted approach that disperses amino-functionalized multi-walled carbon nanotubes (CNTs) along the grain boundaries of phenethylammonium tin iodide (PEA 2 SnI 4 ) films. The CNTs provide conductive pathways that accelerate carrier diffusion, while their ammonium groups regulate crystallization and improve film uniformity. Transient absorption microscopy and transport measurements confirm that carrier conduction is more than doubled in CNT-modified films. As a result, large-area (150 mm 2 ) PEA 2 SnI 4 LEDs achieve a maximum external quantum efficiency of 2.35% and a peak luminance of 5028 cd m −2 , exceeding the threshold for outdoor-readable displays. This grain-boundary engineering strategy directly addresses the transport and morphology limitations of 2D Sn-based perovskites and establishes a scalable route to high-performance, lead-free optoelectronics.
✓ 已验证
产品关联
DOI
高影响因子
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
·
2026
·Vol. 123
·期 12
·e2531153123
·
IF 9.5
Keyu Chen,Yu Deng,Tianming Hu,Jichun Li,Xin-Yu Huang,Chengcheng Zhu,Honggang Chen,Meihua Chen,Limin Wu,Yonghui Deng,Wenhe Xie
Periodic porous structures with interconnected pore channels and high specific surface area are widely spread in natural world. These structures guarantee rapid mass transportation and efficient biochemical reactions within organisms, thereby satisfying the requirements of complex life activities. Inspired by the periodic porous membrane and breathing process of the mammalian respiratory system, a steady nonequilibrium chemical sensing process is established to achieve high-accuracy gas discrimination based on artificial periodic porous structures consisting of metal oxide semiconductors and pulse heating (PH) technique. Owing to its highly accessible mesopores and enormous solid–gas interfaces, periodic mesoporous tin oxide (P-mSnO2) facilitates gas diffusion during PH cycles and enhances the catalytic reaction between gas molecules and P-mSnO2. As a result, the P-mSnO2 based sensor exhibits stable and enhanced overshoot peaks in gas sensing response curves, thus achieving superior discrimination accuracy (99.8%) for six gases under the assistance of convolutional neural network (CNN). Furthermore, the mechanism underlying the distinct shapes of the gas response curves is uncovered, revealing that gas adsorption capacity, gas diffusion coefficient, catalytic reaction barrier, and transferred electron numbers are crucial factors. This work lays the foundation for the development of single-sensor artificial olfactory intelligence and the exploration of periodic porous structures in diverse frontier fields.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF THE INDIAN CHEMICAL SOCIETY
·
2025
·
IF 3.4
Wei Wang,Ming Yin,Qichao Wu
Nickel-based coatings are known for their exceptional properties and high microhardness, making them widely used to enhance the surface performance of metal components. In order to investigate the effect of pulse current densities ( I D ) on the performance and structure of the coatings, the Ni/W–TiN coatings were prefabricated on a 45 steel substrate by using a pulse electrodeposition (PED) approach. The study examines how varying pulse current densities ( I D ) impact the coatings' microstructure, microhardness, phase composition, and wear/corrosion resistance. Among the coatings tested, the one deposited at an I D value equal to 0.5 A/dm 2 revealed the best structure, with average sizes of 66.4 nm for Ni–W grains and 39.3 nm for TiN nanoparticles. XRD patterns revealed characteristic peaks at 43.8°, 50.5°, and 74.2°, corresponding to the (1 1 1), (2 0 0), and (2 2 0) planar directions of Ni–W. The value of pulse I D significantly influenced the microhardness value of the coatings. The sample deposited at 0.1 A/dm 2 showed a microhardness of approximately 675.4 HV, while the coating formed at 0.5 A/dm 2 showed the highest microhardness at around 834.9 HV. Moreover, Ni/W–TiN coating deposited at 0.5 A/dm 2 showed the lowest corrosion value equal to 0.71 A/cm 2 .
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2025
·Vol. 16
·期 1
·1-10
·
IF 15.7
Liu Yuhui,Ma Tianshu,Wang Changlei,Yang Zhenhai,Zhao Yue,Wu Zhanghao,Chen Chen,Bao Yining,Zhai Yuhang,Jia Tianci,Chen Cong,Zhao Dewei,Li Xiaofeng
Low-bandgap (LBG) mixed tin-lead (Sn−Pb) perovskite solar cells (PSCs) suffer from inferior performance due to their high defect density. Conventionally, ethylenediammonium diiodide (EDADI) is used as a surface passivator to reduce defects and improve device photovoltaic performance, but it introduces severe hysteresis caused by excessive mobilized ions at the top interface. Here, we report a mobile ion suppressing strategy of using hydrazine monohydrochloride (HM) as a bulk passivator to anchor the free ions in LBG perovskites. The protonated hydrazine (N 2 H 5 + ) of HM formed hydrogen bonds with iodine (I – ) ions, while the chloride (Cl – ) ions occupied the I – vacancies, collectively impeding the migration of I – and thus mitigating the ion movement-induced hysteresis that arose from EDADI usage. The synergistic strategy of HM doping and EDADI post-treatment significantly suppresses the oxidation of Sn 2+ , decreases trap density, and inhibits rapid crystallization of perovskite. Consequently, we achieved a champion efficiency of 23.21% for LBG PSCs. Integrating these cells with wide-bandgap PSCs into all-perovskite tandem solar cells yields a high efficiency of 28.55% (certified 28.31%) with negligible hysteresis.
研究领域:
材料科学
·
能源科学
·
光电技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）