Article
Chemistry, Physical
Linhua Xu, Xiaoxiong Wang, Gaige Zheng, Jing Su
Summary: In this work, ZnO thin films doped with Al, Fe, Mg, Al-Fe, and Al-Mg were successfully obtained by a spin-coating method. It was found that Aluminum chloride can induce the formation of a high-quality surface layer on the ZnO films. The presence of Fe and Mg ions did not affect the formation of the high-quality surface layer in Al-doped ZnO films.
SURFACES AND INTERFACES
(2021)
Article
Chemistry, Physical
Jina Kim, Myeong Gil Chae, Young Joon Han, Jun Choi, Kwan Hyun Cho, Heenang Choi, Bo Keun Park, Taek-Mo Chung, Woongkyu Lee, Jeong Hwan Han
Summary: High-quality polycrystalline SnO films with excellent hole transport characteristics were successfully grown at a low temperature using atomic layer deposition and annealed with intense pulsed light. The crystallinity of the SnO film increased with increasing light pulse number during the annealing process. The surface morphology of the annealed SnO films was smooth and suitable for thin-film transistor fabrication.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Laid Kadri, Abdelkader Abderrahmane, Georgiana Bulai, Aurelian Carlescu, Corneliu Doroftei, Iuliana Motrescu, Silviu Gurlui, Liviu Leontie, Mohamed Adnane
Summary: TiO2-SiO2 nanocomposite thin films were fabricated and characterized, and their amorphous structure and homogeneous distribution were observed. The deposition temperature had an effect on the optical properties, with lower temperature resulting in increased light transmission in the visible and ultraviolet ranges.
Article
Materials Science, Multidisciplinary
Dongwen Gao, Li Wang, Xueqiong Su, Jin Wang, Ruixiang Chen
Summary: This study investigated the impact of a magnetic field on the optical properties of Co-doped ZnS nano films. By manipulating the growth structure of the film during deposition using a magnetic environment, the optical properties were enhanced. Experimental results under magnetic field conditions were consistent with simulation results, confirming the improved optical properties.
Article
Materials Science, Multidisciplinary
Venkata Sreenivas (Narayanabhatla) Puli, Dhiren K. Pradhan, Albert Hilton, Ram S. Katiyar, Kartik Ghosh, Gopalan Srinivasan, Amber N. Reed, Michael E. McConney, Susan Heidger
Summary: A study on the ferroelectric, ferromagnetic, and magnetoelectric coupling properties of BaTiO3/CoFe2O4/BaTiO3 (BTO/CFO/BTO) heterostructured films was conducted. High-quality polycrystalline films were obtained through thermal annealing, and the coexistence of perovskite BTO and spinel CFO phases in the heterostructures was confirmed by X-ray diffraction. The ferroelectric nature of BTO and the ferrimagnetic nature of CFO were also confirmed by piezoresponse force microscopy and magnetic force microscopy measurements. These nanostructures exhibited high saturation polarization and saturation magnetization, as well as strong magnetoelectric coupling under bias magnetic field and frequency conditions, making them potential candidates for multifunctional applications.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Microscopy
Shanshan Chen, Yixiao Jiang, Tingting Yao, Ang Tao, Xuexi Yan, Fang Liu, Chunlin Chen, Xiuliang Ma, Hengqiang Ye
Summary: epsilon-Fe2O3 has attracted significant interest in the field of magnetoelectric materials due to its promising physical properties. In this study, epsilon-Fe2O3 (001) thin films were successfully epitaxially grown on SrTiO3 (111) substrates using pulsed laser deposition. The factors that significantly affect the epitaxial growth of epsilon-Fe2O3 thin films, such as oxygen pressure, deposition and annealing temperatures, and laser beam energy, were investigated. The results showed that the epsilon-Fe2O3 thin films exhibited strong magnetic anisotropy, a coercivity of 600 Oe, and an indirect band gap of 3.26 eV.
Article
Materials Science, Multidisciplinary
Vikas A. Patel, Basumati H. Patel
Summary: Zn1-xMgxO thin films were successfully deposited by pulse laser deposition technique, and the influence of substrate temperature on the properties of the films was investigated. It was found that the crystallinity of the films improved significantly with increasing substrate temperature, and the energy band gap value of the films was engineered systematically by changing the substrate temperature.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Physics, Condensed Matter
K. Harisha Kumar, S. M. Dharmaprakash
Summary: Transparent conducting thin films of cadmium doped tin oxide (CTO) were successfully fabricated on glass substrates by pulsed laser deposition technique. The electrical resistivity of 3 wt % Cd doped films was 2.407 x 10-3 & omega; cm with an electrical sheet resistance of 300.9 & omega;/. These films exhibited over 80% light transmission and a slightly varying optical energy gap for different doping concentrations. The enhanced electrical conductivity and optical transmittance make them suitable for applications in solar cells and display panels.
PHYSICA B-CONDENSED MATTER
(2023)
Article
Chemistry, Physical
Lenka Volfova, Stefan Andrei Irimiciuc, Sergii Chertopalov, Petr Hruska, Jakub Cizek, Martin Vondracek, Michal Novotny, Maik Butterling, Maciej Oskar Liedke, Andreas Wagner, Jan Lancok
Summary: The influence of oxygen pressure on the structural and physical properties of various copper oxide phases grown by Pulsed Laser Deposition (PLD) on MgO (100) was investigated. Positron annihilation spectroscopy revealed the presence of positrons trapped at vacancies and large vacancy clusters with lifetimes ranging from 400 ps to 500 ps. Single copper vacancies were found in the CuO phase, while copper vacancy complexes coupled with oxygen vacancies were observed in the Cu2O phase. Suitable O-2 atmosphere conditions that induced a mixture of copper oxide phases were identified. In situ diagnostic techniques based on Optical Emission Spectroscopy and Langmuir Probe were used to monitor the deposition process and correlate with film properties.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Manchen Hu, Emma Belliveau, Yilei Wu, Pournima Narayanan, Demeng Feng, Rabeeya Hamid, Natalia Murrietta, Ghada H. Ahmed, Mikhail A. Kats, Daniel N. Congreve
Summary: The deposition of a bulk heterojunction upconversion film using organic semiconductors has been achieved through a single-step solution-processed method. This materials system shows great promise for solid-state upconversion applications.
Article
Engineering, Electrical & Electronic
Pawan Kumar, Devendra Kumar, Arvind Kumar, Ram S. Katiyar
Summary: The optical and structural properties of pulsed laser-deposited CdSSe thin films were investigated at different temperatures and substrates. The results demonstrate that these films are suitable for optoelectronics applications and have a suitable range of energy band gaps.
JOURNAL OF ELECTRONIC MATERIALS
(2022)
Article
Materials Science, Ceramics
Chithira Venugopalan Kartha, Jean-Luc Rehspringer, Dominique Muller, Stephane Roques, Jeremy Bartringer, Gerald Ferblantier, Abdelilah Slaoui, Thomas Fix
Summary: This study reports on the structural, optical, and electrical properties of CuxO thin films prepared by pulsed laser deposition technique. The growth conditions were carefully optimized to provide high conductivity and mobility, and the films showed photovoltaic response on specific substrates, paving the way for efficient solar cells made with Cu2O films.
CERAMICS INTERNATIONAL
(2022)
Article
Crystallography
Dilsom A. Sanchez, Karuna Kara Mishra, Sujoy Saha, Gopalan Srinivasan, Ram S. Katiyar
Summary: The present study demonstrates that PZTFT(x) thin films are multiferroic at room temperature with large magnetoelectric couplings, and these materials may be suitable for use in magnetic sensors and spintronic device applications.
Article
Chemistry, Physical
Yongjian Luo, Zhenxun Tang, Xiaozhe Yin, Chao Chen, Zhen Fan, Minghui Qin, Min Zeng, Guofu Zhou, Xingsen Gao, Xubing Lu, Jiyan Dai, Deyang Chen, Jun -Ming Liu
Summary: This study demonstrates that ferroelectric properties can be observed in non-capped dopant-free HfO2 thin films by adjusting the deposition temperature, oxygen pressure, and thickness. A maximum polarization strength of 14.7 mu C/cm(2) was achieved in a 7.4 nm-thick film, suggesting a new method for fabricating high-quality ferroelectric HfO2 thin films.
JOURNAL OF MATERIOMICS
(2022)
Article
Energy & Fuels
Ju-Guang Hu, Tong Wu, Muhammad Ishaq, Umar Farooq, Shuo Chen, Zhuang-Hao Zheng, Zheng-Hua Su, Xiao-Dong Lin, Ping Fan, Hong-Li Ma, Xiang-Hua Zhang, Guang-Xing Liang
Summary: The CZTS thin-film solar cell achieved a record power conversion efficiency of 6.62% through pulsed laser deposition and sulfurization process, attributed to its optimized structure and composition. This research provides a facile and robust preparation method for CZTS films with enhanced photovoltaic properties and increased efficiency.
SOLAR ENERGY MATERIALS AND SOLAR CELLS
(2021)
