Article
Chemistry, Physical
Jaya Khatter, Suresh Panchal, R. P. Chauhan
Summary: The study investigates the effects of radiation on the physio-chemical properties of CdS thin films deposited via electron beam evaporation. The results show that the crystal structure is modified, surface defects are generated, and particle size is reduced due to irradiation.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Zohra Nazir Kayani, Mamoona Ashfaq, Saira Riaz, Shahzad Naseem
Summary: In this study, copper-doped titanium dioxide thin films were synthesized on glass substrates using a sol-gel dip-coating technique. The addition of copper affected the structural, morphological, dielectric, antibacterial, and optical properties of the films. The copper-doped films showed low dielectric constant, making them ideal for high-frequency devices, and the optical band gap energy decreased with increasing copper concentration, improving the efficiency of solar cells. Moreover, the copper-doped films exhibited enhanced photocatalytic activity, which could be potentially applied in water treatment.
Article
Materials Science, Multidisciplinary
F. Heshmati Mohazzab, F. E. Ghodsi, J. Mazloom
Summary: SnSx thin films were deposited on glass substrates using sol-gel spin coating technique. The different annealing ambients had various effects on the structural, morphological, optical and electrical properties of the films, with Ar annealing enhancing particle size, and N-2 and Ar annealing reducing transparency and shifting the optical absorption edge.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
X. W. Peng, L. Chen, K. X. Song
Summary: In this study, submicron Cu thin films with different texture components were successfully fabricated by magnetron sputtering method, and the underlying mechanism of texture formation was investigated. The results show that texture formation is influenced by different orientation factors and sputtering power. By adjusting the major driving force, different texture components can be successfully manipulated in the submicron Cu thin films.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Materials Science, Multidisciplinary
Laya Dejam, Slawomir Kulesza, Jamshid Sabbaghzadeh, Atefeh Ghaderi, Shahram Solaymani, Stefan Talu, Miroslaw Bramowicz, Mitra Amouamouha, Amir Hossein Salehi Shayegan, Amir Hossein Sari
Summary: In this study, thin films of undoped ZnO, ZnO doped with Al, ZnO doped with Cu, and co-doped ZnO with Al and Cu were deposited on quartz substrates using RF sputtering. The samples were investigated for their advanced fractal features, crystalline structure, and optical properties. The results showed that the films had different morphologies and transmission spectra, with the co-doped sample exhibiting the highest transparency in the visible region and a desirable band gap.
RESULTS IN PHYSICS
(2023)
Article
Engineering, Electrical & Electronic
Wei Wang, Guanghui Liu, Lingyun Hao, Ling Lin, Lei Zhang, Qing Lin, Hangmin Guan
Summary: This study investigated the properties of Cu3Sb(Sx,Se1-x)4 thin films and found that the selenium source temperature significantly influenced the film's performance, with an increase in selenium concentration leading to a decrease in band gap. The results also showed that the thin films exhibited p-type electrical behavior and distinct photoconductivity.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2021)
Article
Physics, Condensed Matter
Eka Nurfani, Lutfi Antika, M. Samsul Anrokhi, Wahyu S. Sipahutar, Aditya Rianjanu, Bambang A. Wahjoedi
Summary: The influence of post-annealing temperature on the structural, morphological, optical, and electrical properties of ZnO:Cu films was investigated. The results showed that increasing the annealing temperature improved the crystallinity of the films, led to morphology modification, and increased the sensitivity of UV detection. Additionally, the increase in annealing temperature also enhanced both the dark current and photocurrent.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Nanoscience & Nanotechnology
Yuchi Cui, Benjamin Derby, Nan Li, Amit Misra
Summary: The study investigates the fracture behavior of nanocomposite materials and finds that hierarchical structures exhibit crack growth resistance, leading to increased toughness. Electron microscopy characterization identifies three mechanisms of crack growth resistance in hierarchical structures: crack bridging, crack deflection, and multiple cracking.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Chemistry, Physical
Rik Hooijer, Andreas Weis, Waldemar Kaiser, Alexander Biewald, Patrick Doerflinger, Clement Maheu, Oleksandr Arsatiants, David Helminger, Vladimir Dyakonov, Achim Hartschuh, Edoardo Mosconi, Filippo De Angelis, Thomas Bein
Summary: Silver pnictohalides, as novel perovskite-inspired materials, have gained attention for their high stability, low toxicity, and promising efficiencies. However, research on the silver antimony iodides is lacking due to challenges in synthesis. In this study, the authors successfully prepared Ag-Sb-I thin films using thiourea as an additive and improved their morphology through alloying with copper. The resulting solar cells demonstrated an enhanced power conversion efficiency by reducing undesired side phases. The study also revealed the detrimental role of silver point defects and the beneficial effect of minor amounts of bismuth on the efficiency and stability of the Rudorffite materials.
CHEMISTRY OF MATERIALS
(2023)
Article
Electrochemistry
Yasemin Altinay, Abdullah Akkaya, Rasit Aydin, Bunyamin Sahin
Summary: Thin film composite structures were used to prepare optoelectronic devices from CuO/ZnO systems with and without Bi substitution. The effects of Bi content on the structure and physical performances of the samples were investigated. The composite films exhibited multiphased crystal structures and varying surface morphologies depending on the Bi concentration. Various vibration and phonon modes of the nanostructured heterostructures were studied using FT-IR and Raman spectroscopy. The fabricated samples showed Ohmic behavior and their dc resistivity values were determined using Ohm's Law. The adjusted sheet resistance value was found to be 11.51 MΩ/sq for a Bi content of 3.0% in the growth bath.
Article
Chemistry, Physical
J. Chakraborty, T. Oellers, R. Raghavan, A. Ludwig, G. Dehm
Summary: The microstructure evolution and stress development in Cu-Zr alloy thin films were studied using GIXRD and STEM, revealing the generation of dislocations and planar faults with increasing Zr composition, leading to tensile stresses and stress gradients.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Ceramics
Mina Rabizadeh, Mohammad Hossein Ehsani
Summary: The effect of annealing on ZnO/Cu/ZnO films was investigated, and the structural, optical, and thermal properties of the films were evaluated. The results showed that the ZnO/Cu/ZnO sample annealed at 400 degrees C had the lowest resistivity, highest transmittance, and lowest emissivity, making it suitable for energy-saving applications such as building windows.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Jiayi Xu, Zilong Guo, Qinghua Zhou, Yaxin Wang, Zheng Xue, Yandong Han, Wensheng Yang, Xiaonan Ma
Summary: The exciton-phonon coupling in 2D hybrid perovskites are crucial for their optoelectronic properties, however, limited knowledge is available for the coupling between excitons and phonons of organic cations. This study systematically analyzed the temperature-dependent photoluminescence of I- and Br-based 2DHPs with different cations, revealing the critical role of organic cations and halide anions in exciton-phonon coupling and providing inspiration for designing high-performance 2DHP optoelectronic devices.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Materials Science, Multidisciplinary
Kanika Khurana, Nirmala Rani, Neena Jaggi
Summary: This study demonstrates the enhancement of luminescence emission of CdS quantum dots by self-assembled metallic NPs, highlighting the unique optical properties of metal NPs and their potential applications in sensors.
Article
Chemistry, Multidisciplinary
Marco Ballabio, Tao Zhang, Chen Chen, Peng Zhang, Zhongquan Liao, Mike Hambsch, Stefan C. B. Mannsfeld, Ehrenfried Zschech, Henning Sirringhaus, Xinliang Feng, Mischa Bonn, Renhao Dong, Enrique Canovas
Summary: The research investigates the charge transport properties of phytic acid (PA) doped polyaniline thin films prepared by the surfactant monolayer-assisted interfacial synthesis (SMAIS). The study shows that the charge transport in the samples displays band-like behavior and exhibits state-of-the-art charge carrier mobilities of approximate to 1 cm(2)V(-1)s(-1) in the THz region. Temperature-dependent analysis further supports band-like charge transport, suggesting that impurity scattering primarily limits charge carrier mobility in the films. This work highlights the potential of PA doped polyaniline for organic electronics.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Crystallography
Qiuju Feng, Tongtong Li, Fang Li, Yunzheng Li, Bo Shi, Chong Gao, Deyu Wang, Hongwei Liang
JOURNAL OF CRYSTAL GROWTH
(2019)
Article
Chemistry, Physical
Jingchang Sun, Peida Li, Jiangying Qu, Xue Lu, Yaqiao Xie, Feng Gao, Yue Li, Mingfei Gang, Qiuju Feng, Hongwei Liang, Xiaochuan Xia, Chengren Li, Shichong Xu, Jiming Bian
Article
Chemistry, Multidisciplinary
Yingying Shao, Chunyang Zhang, Shi Wang, Ying Yan, Yulin Feng, Jiming Bian, Yantao Shi
ADVANCED MATERIALS INTERFACES
(2019)
Article
Chemistry, Physical
Minhuan Wang, Yulin Feng, Qingshun Dong, Jiming Bian, Chen Wang, Yang Huang, Congcong Ma, Yantao Shi
CHEMICAL PHYSICS LETTERS
(2019)
Article
Chemistry, Multidisciplinary
Zumeng Huang, Yuanda Liu, Kevin Dini, Qinghai Tan, Zhuojun Liu, Hanlin Fang, Jin Liu, Timothy Liew, Weibo Gao
Article
Chemistry, Analytical
Dongyang Xue, Heqiu Zhang, Aqrab ul Ahmad, Hongwei Liang, Jun Liu, Xiaochuan Xia, Wenping Guo, Huishi Huang, Nanfa Xu
SENSORS AND ACTUATORS B-CHEMICAL
(2020)
Article
Chemistry, Analytical
Aqrab ul Ahmad, Hongwei Liang, Sajid Ali, Qasim Abbas, Amjad Farid, Adnan Ali, Muzammil Iqbal, Ijaz Ahmad Khan, Lujun Pan, Akmal Abbas, Zahid Farooq
SENSORS AND ACTUATORS B-CHEMICAL
(2020)
Article
Multidisciplinary Sciences
Yuanda Liu, Kevin Dini, Qinghai Tan, Timothy Liew, Kostya S. Novoselov, Weibo Gao
Article
Nanoscience & Nanotechnology
Shen Lai, Huiying Liu, Zhaowei Zhang, Jianzhou Zhao, Xiaolong Feng, Naizhou Wang, Chaolong Tang, Yuanda Liu, K. S. Novoselov, Shengyuan A. Yang, Wei-bo Gao
Summary: Nonlinear responses in transport measurements are linked to material properties not accessible at linear order due to distinct symmetry requirements. Recent experiments on ultrathin WTe2 demonstrate the connection between crystal structure and nonlinear response. Theory predicts that another intrinsic band geometric property, the Berry-connection polarizability tensor, may give rise to higher-order signals.
NATURE NANOTECHNOLOGY
(2021)
Article
Materials Science, Multidisciplinary
Wenyi Shao, Xiang Wang, Zhenzhong Zhang, Jie Huang, Zhongyuan Han, Shuai Pi, Qiang Xu, Xiaodong Zhang, Xiaochuan Xia, Hongwei Liang
Summary: This paper demonstrates a highly efficient and low-cost X-ray scintillator based on 2D butylammonium lead bromide perovskite and manganese (II) activator, which shows potential for commercial high-resolution X-ray imaging applications.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Wenyi Shao, Guoyang Zhu, Xiang Wang, Zhenzhong Zhang, Haocheng Lv, Weibo Deng, Xiaodong Zhang, Hongwei Liang
Summary: A novel scintillator based on BTP2MnBr4 nanocrystal membranes was developed, which exhibited excellent properties such as high light output, high spatial resolution, flexibility, non-toxicity, cost-effectiveness, high linear response to X-ray dose rate, and low detection limit. It also demonstrated strong radiation hardness, long-term thermal stability, and suppressed light cross-talk in X-ray imaging. Impressive high-spatial resolution X-ray imaging and well-resolved 3D dynamic rendering X-ray projections were achieved.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Wenyi Shao, Tengyue He, Jian-Xin Wang, Yang Zhou, Peng Yuan, Wentao Wu, Zhenzhong Zhang, Osman M. Bakr, Hongwei Liang, Omar F. Mohammed
Summary: Dual-energy X-ray imaging (DEXI) provides more detailed material-specific information compared to traditional single-energy X-ray imaging. A top-filter-bottom (TFB) sandwich structure scintillator was designed and fabricated for high-resolution DEXI in a single exposure, capable of discriminating between emission spectra and achieving exceptional resolution. The breakthrough research paves the way for scintillator architectures specifically designed for DEXI.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Chengwei Li, Yifeng Zhang, Shuaitao Yang, Huitong Zhao, Yuan Guo, Tianze Cong, Hui Huang, Zeng Fan, Hongwei Liang, Lujun Pan
Summary: This article introduces a flexible humidity sensor based on a tissue-carbon nanocoil-carbon nanotube composite. The sensor exhibits a wide sensing range, high sensitivity, long-term stability, high resolution accuracy, and fast response time. It also demonstrates excellent performance in various applications, indicating great potential in the field.
Article
Materials Science, Multidisciplinary
Jianjun Shi, Hongwei Liang, Xiaochuan Xia, Ze Long, Heqiu Zhang, Yang Liu, Xin Dong, Zhitai Jia
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY
(2020)
Article
Chemistry, Multidisciplinary
Jun Liu, Heqiu Zhang, Dongyang Xue, Aqrab ul Ahmad, Xiaochuan Xia, Yang Liu, Huishi Huang, Wenping Guo, Hongwei Liang