CRYSTENGCOMM
·
2014
·Vol. 17
·期 5
·1168-1172
·
IF 3.858
Shaojuan Luo,Jiyun Feng,Ka Ming Ng
Indium–tin carboxylate precursors were successfully synthesized by a direct reaction of indium and tin metals with a molten fatty acid under a nitrogen atmosphere at 260 °C. A linear relationship between the reaction initiation temperature and the number of carbon atoms of the fatty acids ranging from capric acid to stearic acid was observed. There was a 7 °C increase in the reaction initiation temperature for an increase of one carbon atom in the fatty acid. Nearly monodisperse 7–9 nm ITO nanocrystals without agglomeration were synthesized by direct pyrolysis of the as-synthesized precursors without using additional organic solvents. The fatty acid had a minor effect on the decomposition temperature and the mean ITO particle size, but affected the particle size distribution. TOF-SIMS data confirmed that the residue fatty acids on the surface of the indium tin oxide (ITO) nanoparticles served as a built-in surfactant leading to excellent dispersity of the ITO nanocrystals in non-polar solvents.
研究领域:
材料科学
·
纳米技术
·
化学合成
·
表面化学
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry A
·
2017
·Vol. 5
·期 48
·25211-25219
·
IF 8.867
Kai Lu,Yan Lei,Ruijuan Qi,Jiang Liu,Xiaogang Yang,Zuxiao Jia,Rui Liu,Yong Xiang,Zhi Zheng
Different from band edge alignment, the Fermi level mismatch induced by band bending can manipulate charge collection at the ITO/(CH3NH3)1−xCuxPbI3 heterojunctions. In this work, we employed a feasible spin-coating process to prepare copper defect compensation in CH3NH3PbI3. The related work function was shown to shift with the copper doping density by Kelvin probe force microscopy (KPFM). Next, we applied transient surface photovoltage (TSPV) spectroscopy and first-order series reactions simulations to confirm that interface charge recombination at the ITO/perovskite junction can be eliminated through Cu+ doping. Nanoelectric photoconductive AFM analysis showed enhanced charge transfer and a higher photovoltage at the ITO/Cu-perovskite junction. Owing to efficient Fermi level alignment, the ITO/(CH3NH3)1−xCuxPbI3/PCBM/Ag devices displayed high power conversion efficiencies of 15.14 ± 0.67% at ambient conditions for inverted perovskite solar cells without any hole transport layer.
研究领域:
材料科学
·
物理化学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
ANALYST
·
2023
·Vol. 148
·期 20
·4995-5001
·
IF 4.2
Weixin Li,Xinyang Wang,Lifen Chen,Fang Luo,Longhua Guo,Cuiying Lin,Jian Wang,Bin Qiu,Zhenyu Lin
Two-dimensional (2D) layered MoS2 has good dispersion and adsorption properties, but being a narrow bandgap semiconductor limits its application in photoelectric sensing. In this study, a homogeneous photoelectrochemical sensor based on three-dimensional (3D) ZnO/Au/2D MoS2 is proposed for the ultrasensitive detection of tetracycline (TET). MoS2 is uniformly embedded on the 3D ZnO/Au surface by ordered self-assembly. The physical method of π–π interaction of MoS2 replaces the conventional use of chemically modifying aptamers on the electrode material surface. Under optimal conditions, this method has been successfully applied to the detection of TET in milk, honey, pig kidney and pork samples with reliable results. We believe that this study presents a method for the preparation of sensing carriers and target detection with great potential for application.
研究领域:
分析化学
·
环境科学
·
食品科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Optoelectronics Letters
·
2018
·Vol. 14
·期 4
·262-266
·
IF 0
Hu Jun-tao,Ye Kang-li,Huang Yang,Wang Peng,Xu Kai,Wang Xiang-hua
In this paper, p-chlorophenylacetic acid and p-fluorophenylacetic acid were applied to modify the indium tin oxide (ITO) electrodes. The surface work functions of unmodified ITO, p-chlorophenylacetic acid modified ITO (Cl-ITO) and p-fluorophenylacetic acid modified ITO (F-ITO) are 5.0 eV, 5.26 eV and 5.14 eV, respectively, and the water contact angles are 7.3°, 59.1° and 46.5°, respectively. The increase of the work function makes the hole injection ability of the devices improved, which is proved by the hole transport devices. The self-assembly (SAM) layers transfer hydrophilic ITO to hydrophobic ITO, which makes ITO more compatible with the hydrophobic organic layers, making the organic film more stable during the operation. After modification, the organic light emitting diodes (OLEDs), SAM-modified ITO/NPB/Alq3/LiF/Al, with better performance and stability were fabricated. Especially, the OLED with Cl-ITO (Cl-OLED) has a maximum luminance of 22 428 cd/m 2 (improved by 32.9%) and a half-lifetime of 46 h. Our results suggest that employing organic acids to modify ITO surface can enhance the stability and the luminescent properties of OLED devices.
研究领域:
材料科学
·
光电功能材料
·
表面化学
·
有机电子学
·
器件物理
·
薄膜稳定性
✓ 已验证
DOI
NANO
·
2015
·
IF 1.09
Wen-Ting Li,Yu Wang,Fen-Fang Deng,Li-Li Liu,Hai-Jun Nan,He Li
A novel electrochemical immunosensor for determination of carcinoembryonic antigen (CEA) in human serum was fabricated by depositing Mo–Mn 3 O 4 /MWCNTs/Chits nanocomposite onto an indium-tin oxide (ITO) electrode. Mo-doped Mn 3 O 4 (MMO) was synthesized by sol–gel method and the presence of molybdenum improved its electrochemical properties. The MMO/MWCNTs/Chits nanocomposite could accelerate the electron transfer rate and enlarge the surface area to capture a large number of Carcinoembryonic Antigen (CEA). The factors influencing the performance of the immunosensor were investigated, such as incubation time, incubation temperature and pH. Under optimal conditions, the electrochemical immunosensor could detect CEA in a linear range from 0.1 ng ⋅ mL − 1 to 125 ng ⋅ mL − 1 with a detection limit of 4.9 pg ⋅ mL − 1 ( S ∕ N = 3 ). In addition, it exhibited high sensitivity and acceptable stability on a promising immobilization platform for signal amplification, which could be extended to other labeled recognition systems. This electrochemical immunosensor may provide potential applications for the clinical diagnosis.
研究领域:
生物医学工程
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
ELECTROANALYSIS
·
2016
·Vol. 29
·期 4
·965-974
·
IF 2.471
Yingqiao He,Guodong Wei,Junhong Lin,Mingxu Sun,Ziheng Li
A novel non-enzymatic carbohydrates sensor which was an indium tin oxide (ITO) glass electrode modified by nickel and copper nanoparticles (Cu/Ni/ITO) was developed by an electrochemical method. The crystallinity, morphology, electrochemical measurements and amperometric response of the as-prepared ITO modified electrode were examined by the X-ray diffraction (XRD), scanning electron microscopic (SEM), cyclic voltammetry (CV) and chronoamperometry, respectively. The Cu/Ni/ITO electrode had better electroactivity for glucose oxidation than that obtained using Cu/ITO, Ni/ITO, and Ni/Cu/ITO. The logistic regression equation, I pa = ( A 1 – A 2 )/[1 + ( C glucose / x 0 ) p ] + A 2 , was used to fit the calibration curves of glucose aqueous solution concentrations and responsive current intensity. In research of other saccharides, such as fructose, lactose, sucrose, and maltose, which were detected by the Cu/Ni/ITO electrode, it was obvious that the Cu/Ni/ITO electrode was more sensitive to monosaccharides than disaccharides. Monosaccharides and disaccharides can be detected because the saccharides themselves had aldehyde group or be isomerized to an isomer having an aldehyde group in alkaline environment, and then aldehyde group produced carboxylic acid in the catalytic oxidation of the electrode, which lead to the change of electrode surface conductivity and the appearance of oxidation peak, and the alkaline environment further promotes the above reaction.
研究领域:
生物化学
·
材料科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2025
·
IF 13.2
Xiaoyue Hao,Yong Liu,Gaorong Han,Gaoling Zhao,Dongxue Liu,Huitao Dai,Sainan Ma,Likun Wang
Over half of the solar energy comes from the infrared region, which makes electrochromic materials that modulate infrared transmittance essential for the thermal management of smart windows. However, existing electrochromic materials do not perform well in the near-infrared region, which exhibits slow response time, weak adhesion to conductive substrates, and poor long-term cycling stability. In the present work, we successfully synthesized WO 3 @ITO nanorod samples with hierarchical core–shell structure by hydrothermal and in-situ solvothermal methods. ITO-coated WO 3 nanorods and some ITO nanocrystals were firmly integrated with WO 3 nanorods, resulting in a corn-like hybrid heterogeneous structure. The unique WO 3 @ITO hierarchical core–shell structure improves the electronic properties and the adhesion to substrates, reducing the energy barrier of ion diffusion and increasing the ion flux. Enhanced electrochromic performance in NIR range with a high optical modulation of 53.3 % in 1600 nm and long-term reversibility (maintaining 91.5 % of its original contrast after 1000 cycles) was achieved. In addition, response time (t c = 3.5 s, t b = 4.6 s) and coloration efficiency (112.5 cm 2 ‧C -1 ) have been significantly improved, which is almost twice that of unmodified WO 3 nanorods (t b = 8.6 s and CE = 56.4 cm 2 ‧C -1 ), showing a good application prospect in smart windows.
研究领域:
材料科学
·
能源技术
✓ 已验证
产品关联
DOI
高影响因子
SOLAR ENERGY MATERIALS AND SOLAR CELLS
·
2025
·
IF 6.3
Lukai Shen,Xiaoyue Hao,Jian Peng,Sainan Ma,Dongxue Liu,Buyi Yan,Gaoling Zhao,Likun Wang,Gaorong Han
Near-infrared (NIR) electrochromism are one of the most attractive candidates for solar heat regulation, photodynamic therapy, optical telecommunications, and military camouflage. However, complex preparation process, non-ohmic contact within electrochromic nanomaterials or with substrates, and inferior electrochromic performance limit the massive application of electrochromic devices (ECD). Herein, ITO nanocrystals, H 2 WO 4 ·H 2 O and WO 3 nanosheets were controllably synthesized by a facile wet chemistry method. The porous ITO@WO 3 composite films are characterized by reduced impedance, enhanced charge transport, significant NIR modulation, and excellent cycling stability. When 15 wt% ITO is introduced into WO 3 nanosheet, the composite film possesses the optimal ΔT (62 % at 1600 nm) at a low voltage of +0.3 V to −0.3 V, the bleaching time (25.4 s) is greatly improved than that of pure WO 3 film (38.1 s), and the optical modulation retains 93 % of the original values after 5000 cycles. Moreover, an impressive dual-band ECD with high optical modulation (53.4 % at 633 nm and 49.3 % at 1600 nm) and high coloration efficiencies (125.27 cm 2 C −1 at 633 nm and 204.73 cm 2 C −1 at 1600 nm) were achieved, showing a good application prospect in smart windows.
研究领域:
材料科学
·
纳米技术
·
能源与环境
✓ 已验证
产品关联
DOI
高影响因子
BULLETIN OF THE KOREAN CHEMICAL SOCIETY
·
2019
·Vol. 40
·期 3
·214-219
·
IF 0.602
Jinyun Peng,Wenfeng Zhuge,Yingying Huang,Cuizhong Zhang,Wei Huang
In this study, a new photoelectrochemical (PEC) sensor based on the copper tetraamino-phthalocyanine-modified ITO electrode (CuTAPc/ITO) was designed for the determination of nifedipine. The prepared CuTAPc materials were characterized using UV–Visible spectrophotometry (UVS), Fourier transform infrared spectroscopy (FT-IR), and X-ray diffraction (XRD). Then, the CuTAPc solution was coated on the ITO electrode surface to fabricate a simple PEC sensing platform. Then, the photoelectrochemical behavior of nifedipine at the CuTAPc/ITO electrode was investigated by chronoamperometry under ultraviolet light irradiation. The obtained results indicated that the modified electrode showed a higher response signal than the blank electrode. The photocurrent of CuTAPc/ITO increased with the increasing concentration of nifedipine. The peak photocurrents were linearly dependent on the nifedipine concentration in the range of 0.25–18.0 μmol/L, thereby providing the detection limit of 0.15 μmol/L ( S / N = 3). Due to the good responses for the determination of nifedipine, this sensor can be used as an alternative analysis tool for the detection of nifedipine in various real samples with high sensitivity, low detection limit, and wide linearity range.
研究领域:
分析化学
·
药物分析
·
材料科学
✓ 已验证
DOI
高影响因子
MATERIALS CHEMISTRY AND PHYSICS
·
2023
·
IF 4.6
Hangxi Liu,Haorong Sun,Ming Fang,Yifeng Zhang,Mingguang Kong,Zhimin Lv,Xiaoli Tan
The evaluation of the concentration of Pb(II) in solution has great significance in avoiding harm to ecology health. In this work, NH 2 -MIL-53(Fe) modified ITO glass (NH 2 -MIL-53(Fe)@ITO) was utilized as an electrochemical sensor for the detection of Pb(II) in solutions. FTIR and XPS investigation disclosed that the plentiful surface –NH group on the NH 2 -MIL-53(Fe) should be responsible for the highly efficient and selective detection abilities of Pb(II) due to the capture and conductivity abilities. The NH 2 -MIL-53(Fe) was prepared by a solvothermal technique and electrophoresed on the surface of ITO glass . A square wave voltammetry (SWV) method is employed for the sensitive determination of Pb(II). The factors of the detection condition such as the pH and ion interference are also studied. The sensitivity of 16.072 μA μM −1 cm −2 in the linear range of 2–4 μM and 54.143 μA μM −1 cm −2 in the linear range of 5–17 μM, and the limit of detection (LOD) of 0.1 μM are acquired. The repeatability and reproducibility are also studied. EIS and Tafel curves are utilized to investigate the effect of temperatures on the properties of the NH 2 -MIL-53. This work presents a facile strategy for the preparation of NH 2 -MIL-53(Fe)@ITO electrochemical sensor via electrolysis, which enhances the sensitivity toward Pb(II) and shows great application potential.
研究领域:
环境科学
·
分析化学
·
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2025
·
IF 2.5
Xiaomiao Feng,Yue Feng,Qun Xu,Haiyan Zhu
The CoMnS-PDA (polydopamine) composite electrodes with high optical transparency and flexibility were fabricated on ITO/PET substrates via an electrochemical deposition method. The unique structural attributes, tunable electronic properties, and rich redox states inherent to bimetallic sulfides, combined with the catechol and nitrogen functional groups present in PDA, collectively enhance the surface modification effectiveness and pseudocapacitive performance of the electrodes. The CoMnS-PDA electrodes exhibit excellent pseudocapacitive performance, with a maximum areal capacitance of 189.3 mF cm−2 at a current density of 0.4 mA cm−2, while maintaining optical transmittance of around 80%. The assembled symmetric device exhibits 50% transparency and delivers an area capacitance of 28.7 mF cm−2 at a current density of 0.2 mA cm−2. Moreover, the device demonstrates outstanding flexibility, with negligible electrochemical performance degradation even under nearly 180° bending. When three devices are connected in series, they successfully light up a red LED, indicating the promising potential of these materials for flexible and transparent energy storage applications.
研究领域:
电化学
·
材料科学
·
纳米技术
·
能量存储
·
柔性电子学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2015
·
IF 2.711
Rong Wang,Yi Xu,Chunyan Wang,Huazhou Zhao,Renjie Wang,Xin Liao,Li Chen,Gang Chen
A novel composite structure of reduced graphene oxide (rGO)–Ag nanoparticles (Ag NPs) nanocomposite, which was integrated on the indium tin oxide (ITO) glass by a facile and rapid two-step chronoamperometry electrodeposition route, was proposed and developed in this paper. SERS-activity of the rGO/Ag NPs nanocomposite was mainly affected by the structure and size of the fabricated rGO/Ag NPs nanocomposite. In the experiments, the operational conditions of electrodeposition process were studied in details. The electrodeposited time was the important controllable factor, which decided the particle size and surface coverage of the deposited Ag NPs on ITO glass. Under the optimized conditions, the detection limit for rhodamine6G (R6G) was as low as 10 −11 M and the Raman enhancement factor was as large as 5.9 × 10 8 , which was 24 times higher than that for the ITO–Ag NPs substrate. Apart from this higher enhancement effect, it was also illustrated that extremely good uniformity and reproducibility with low standard deviation could be obtained by the prepared ITO-rGO/Ag NPs nanocomposite for SRES detection.
研究领域:
材料科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）