Article
Materials Science, Multidisciplinary
Xiangchao Lu, Wei Wang, Huijie Zhu, Yongsen Wu, Yizhen Lu, Gonglei Shao, Song Liu, Yang Cao
Summary: Researchers have fabricated a high-performance diode using a one-step chemical vapor deposition technique, which has adjustable rectification ratio and excellent photovoltaic properties. By controlling the lattice mismatching between materials, the rectification performance of 2D material diodes has been improved, providing a potential pathway for constructing electronic circuits using 2D materials.
SCIENCE CHINA-MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Binbin Ding, Lianbi Li, Lei Li, Tianming Wang, Changjun Zhu, Song Feng, Zebin Li, Jun Wang, Guoqing Zhang, Yuan Zang, Jichao Hu, Caijuan Xia
Summary: In this study, large-area monolayer MoS2 films were successfully grown on graphene using chemical vapor deposition (CVD) technique with the assistance of oxygen (O2). The introduction of O2 improved the growth environment of MoS2 domains and increased the grain size of MoS2. Spectroscopic results showed the deposition of a monolayer of MoS2 with high crystal quality on graphene. Effective charge transfer was observed in MoS2/graphene heterojunctions. The photodetector prepared by MoS2/graphene film exhibited good response to light. These findings indicate the great potential of MoS2/graphene heterojunctions for optoelectronic applications.
Article
Chemistry, Multidisciplinary
Theresa Gruenleitner, Alex Henning, Michele Bissolo, Armin Kleibert, Carlos A. F. Vaz, Andreas Stier, Jonathan J. Finley, Ian D. Sharp
Summary: This study demonstrates a novel transparent conductive support structure for scalable integration of 2D materials, which provides an electronically passive 2D-3D interface and enables facile interfacial charge transport.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Jihyun Kim, Ju Hyeon Lee, Myeongjin Jung, Jae Hyung Kim, Jung-Min Park, Han-Ki Kim, Joohoon Kang
Summary: In this study, multivalued transistors were fabricated on a wafer-scale using area-selective optical doping. By controlling the carrier concentrations, the researchers were able to design multivalued electrical characteristics and achieve a stable intermediate state.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Qi Zhang, Haoting Ying, Xin Li, Rong Xiang, Yongjia Zheng, Hemiao Wang, Jun Su, Minxuan Xu, Xin Zheng, Shigeo Maruyama, Xuefeng Zhang
Summary: This study reports the controlled doping of Sn heteroatoms into 2D MoS2 crystals through a single-step deposition method to improve the photo-detection ability, while preserving the host lattice. The substitutional doping process provides a potential platform to tune the properties of these 2D materials.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Peicheng Wei, Yan Wen, Kaifeng Lin, Xin Li
Summary: In this study, a novel mixed-dimensional structured photoanode was developed by grafting 3D worm-like BiVO4 onto a 2D thin WO3 underlayer, resulting in enhanced photocatalytic activity and charge separation efficiency. The doping of W6+ in WO3 contributes to increased electrical conductivity of the photoanode, while a robust NiCo2Ox catalyst coating provides excellent stability and high photocurrent density, making the 2D/3D WO3/BiVO4 photoanode a promising material for practical applications.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Chemistry, Physical
Hafiza Komal Zafar, Manzar Sohail, Ayman Nafady, Kostya Ken Ostrikov, Geoffrey Will, Md A. Wahab, Anthony P. O'Mullane
Summary: The use of fossil fuels poses a threat to the Earth's climate and its inhabitants. Photoelectrochemical water splitting has emerged as a promising solution to produce oxygen and hydrogen in a cost-effective and environmentally friendly manner. This study presents the development of S-doped Cu3Se2 thin films using a chemical bath deposition process to enhance PEC water oxidation efficiency.
APPLIED SURFACE SCIENCE
(2023)
Review
Biochemistry & Molecular Biology
Mariuca Gartner, Hermine Stroescu, Daiana Mitrea, Madalina Nicolescu
Summary: This review highlights the importance of Zn for the synthesis of multifunctional materials with interesting properties. Various strategies such as appropriate synthesis routes, doping and co-doping of ZnO films, and the addition of polymers are discussed. ZnO can be used in thin films, mixed layers, and composite films, and it can be doped with metals or non-metals. ZnO has multiple applications in sensing technology, piezoelectric devices, transparent conductive oxides, solar cells, and photoluminescence.
Article
Chemistry, Physical
Shankara S. Kalanur, Young Jae Lee, Hyungtak Seo
Summary: The study introduces a versatile BiVO4 thin film synthesis strategy that allows for morphology tunability, feasibility of doping, and heterojunction formation in a single step. This strategy can be extended to fabricate different nanostructures by changing capping agents, and has shown the feasibility of Al doping and heterojunction formation with WO3 nanostructure for enhanced PEC activity. The proposed strategy could be exploited using new capping agents and dopants for simultaneously obtaining doped BiVO4 in heterojunction systems with unique morphology.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Myeonggeun Choe, Jin Young Koo, Ina Park, Hiroyoshi Ohtsu, Ji Hoon Shim, Hee Cheul Choi, Sarah S. Park
Summary: In this study, a conductive two-dimensional metal-organic framework (MOF) thin film was successfully synthesized using single-step all-vapor-phase chemical vapor deposition (CVD). The synthesized Cu-3(C6O6)(2) thin film showed high crystallinity with edge-on orientation. Cu-3(C6O6)(2) thin film-based microdevices were fabricated and exhibited an electrical conductivity of 92.95 S/cm. The synthesis of conductive MOF thin films by all-vapor-phase CVD offers a platform for fundamental studies on their physical properties and potential practical applications.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Optics
V. K. Ashith, Sahana Nagappa Moger
Summary: The Magnesium doped Zinc Sulphide thin films were synthesized by the low-cost chemical bath deposition technique. XRD patterns showed a cubic phase with preferred (111) plane orientation. Crystallinity and bandgap were influenced by magnesium doping. Photoluminescence and electrical properties of the films were significantly changed.
Article
Multidisciplinary Sciences
Shanshan Liu, Zihan Li, Ke Yang, Enze Zhang, Awadhesh Narayan, Xiaoqian Zhang, Jiayi Zhu, Wenqing Liu, Zhiming Liao, Masaki Kudo, Takaaki Toriyama, Yunkun Yang, Qiang Li, Linfeng Ai, Ce Huang, Jiabao Sun, Xiaojiao Guo, Wenzhong Bao, Qingsong Deng, Yanhui Chen, Lifeng Yin, Jian Shen, Xiaodong Han, Syo Matsumura, Jin Zou, Yongbing Xu, Xiaodong Xu, Hua Wu, Faxian Xiu
Summary: Researchers have successfully synthesized tunable 2D ferromagnetic materials with Curie temperature above room temperature by controlling the composition of the elements. The large-scale fabrication of these materials has been achieved, and magnetic tunneling junction device arrays have been fabricated.
NATIONAL SCIENCE REVIEW
(2022)
Article
Materials Science, Multidisciplinary
Carlos Morales, Dietmar Leinen, Eduardo Flores, Esmeralda Munoz-Cortes, Fabrice Leardini, Jose R. Ares, Jan Ingo Flege, Leonardo Soriano, Isabel J. Ferrer, Carlos Sanchez
Summary: The investigation provides new insights into the structure and chemical composition of pyrite thin films, highlighting the chemical inhomogeneities and proposing the hypothesis that the iron sulfuration process induces diffusion, resulting in the formation of a porous layer. The findings suggest that mechanisms operative in the synthesis of surface hollow structures at the nanoscale are also active in the formation of pyrite thin films.
Article
Nanoscience & Nanotechnology
Woo Seok Lee, Yoon-Gu Kang, Manoj Sharma, Yong Min Lee, Sanghyun Jeon, Ashma Sharma, Hilmi Volkan Demir, Myung Joon Han, Weon-Kyu Koh, Soong Ju Oh
Summary: By studying the effects of surface chemistry treatment and Cu, Ag doping on structural, optical, and electrical properties of CdSe nanoplatelets and thin films, it was found that doping can alter the electrical properties, which was experimentally confirmed. Temperature-dependent electrical characterization was conducted to further understand charge transport behavior depending on the existence of dopants.
ADVANCED ELECTRONIC MATERIALS
(2022)
Article
Engineering, Electrical & Electronic
Tran Thi Be Lan, Yu-Teng Li, An-Cheng Aidan Sun, Hsi-Chuan Lu, Sea-Fue Wang
Summary: This study aimed to characterize the resistive memory switching mechanism of cerium dioxide (CeO2) thin insulating films with different dopants, revealing that metallic Gd and Zr were more effective than Ca in CeO2 films. XPS analysis indicated that oxygen played a crucial role in generating conductive filaments in doped films.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Chemistry, Multidisciplinary
Tu Hong, Bhim Chamlagain, Shuren Hu, Sharon M. Weiss, Zhixian Zhou, Ya-Qiong Xu
Article
Chemistry, Multidisciplinary
Tu Hong, Bhim Chamlagain, Tianjiao Wang, Hsun-Jen Chuang, Zhixian Zhou, Ya-Qiong Xu
Article
Nanoscience & Nanotechnology
Qingsong Cui, Maryam Sakhdari, Bhim Chamlagain, Hsun-Jen Chuang, Yi Liu, Mark Ming-Cheng Cheng, Zhixian Zhou, Pai-Yen Chen
ACS APPLIED MATERIALS & INTERFACES
(2016)
Article
Chemistry, Multidisciplinary
Tianjiao Wang, Shuren Hu, Bhim Chamlagain, Tu Hong, Zhixian Zhou, Sharon M. Weiss, Ya-Qiong Xu
ADVANCED MATERIALS
(2016)
Article
Chemistry, Multidisciplinary
Hsun-Jen Chuang, Bhim Chamlagain, Michael Koehler, Meeghage Madusanka Perera, Jiaqiang Yan, David Mandrus, David Tomanek, Zhixian Zhou
Correction
Chemistry, Multidisciplinary
Bhim Chamlagain, Qing Li, Nirmal Jeevi Ghimire, Hsun-Jen Chuang, Meeghage Madusanka Perera, Honggen Tu, Yong Xu, Minghu Pan, Di Xiao, Jiaqiang Yan, David Mandrus, Zhixian Zhou
Article
Chemistry, Multidisciplinary
Hsun-Jen Chuang, Xuebin Tan, Nirmal Jeevi Ghimire, Meeghage Madusanka Perera, Bhim Chamlagain, Mark Ming-Cheng Cheng, Jiaqiang Yan, David Mandrus, David Tomanek, Zhixian Zhou
Article
Chemistry, Multidisciplinary
Tu Hong, Bhim Chamlagain, Wenzhi Lin, Hsun-Jen Chuang, Minghu Pan, Zhixian Zhou, Ya-Qiong Xu
Article
Materials Science, Multidisciplinary
Thayer S. Walmsley, Bhim Chamlagain, Upendra Rijal, Tianjiao Wang, Zhixian Zhou, Ya-Qiong Xu
ADVANCED OPTICAL MATERIALS
(2019)
Article
Chemistry, Physical
Bhim Chamlagain, Udai Bhanu, Shin Mou, Saiful Khondaker
JOURNAL OF PHYSICAL CHEMISTRY C
(2020)
Article
Physics, Applied
Bhim Chamlagain, Saiful Khondaker
APPLIED PHYSICS LETTERS
(2020)
Article
Thermodynamics
Sampad Ghosh, Sajeevi S. Withanage, Bhim Chamlagain, Saiful I. Khondaker, Sivasankaran Harish, Bidyut Baran Saha
Article
Chemistry, Multidisciplinary
Bhim Chamlagain, Saiful Khondaker
Summary: The electrical properties of MoS2 thin films degrade with prolonged ambient exposure, with resistance increasing drastically over time. Coating the MoS2 thin film with polymethylmethacrylate can effectively prevent this degradation, showing only minimal increase in resistance over a year of exposure.
Article
Materials Science, Multidisciplinary
Bhim Chamlagain, Qingsong Cui, Sagar Paudel, Mark Ming-Cheng Cheng, Pai-Yen Chen, Zhixian Zhou