Article
Chemistry, Multidisciplinary
Md Rashedul Islam, Shaila Afroj, Nazmul Karim
Summary: Wearable electronic textiles have potential but face challenges in energy storage solutions. Leveraging 2D material heterostructures can enhance supercapacitor performance, facilitating large-scale production of high-performance wearable supercapacitors.
Article
Nanoscience & Nanotechnology
Yusuf Tutel, Serkan Koylan, Sensu Tunca, Husnu Emrah Unalan
Summary: The study demonstrates the use of ultrasonic spray deposited nanometer-thick manganese and cobalt doped NiO film electrodes for glucose sensing, showing better performance than bare NiO and Mn:NiO electrodes. The results suggest the potential of ultrasonic spray deposition method for mass-production of high-performance nonenzymatic nanometer-thick film biosensors.
ACS APPLIED NANO MATERIALS
(2021)
Article
Engineering, Environmental
Siowwoon Ng, Kalyan Ghosh, Jan Vyskocil, Martin Pumera
Summary: Modern wearable electronics require scalable, flexible, and conductive electrodes with tunable properties. This study combines flexible graphite films and 2D vanadium sulfide to achieve multiple functionalities such as photoelectrocatalysis and pseudocapacitive charge storage.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Cong Xie, Wen Wang, Changkun Li, Qichun Nie, Lulu Sun, Wenwu Zeng, Fei Qin, Tiefeng Liu, Xinyun Dong, Hongwei Han, Haisheng Fang, Dewen Zhao, Yinhua Zhou
Summary: A water transfer printing method based on solid-solid contact and assisted by Van der Waals force is reported, allowing deposition of nanometer-thick films on various surfaces; water plays a crucial role in helping unfold the nanometer-thick films; this method can be used to demonstrate electronic and optoelectronic devices on wrinkled skin and curved surfaces.
ADVANCED MATERIALS TECHNOLOGIES
(2021)
Article
Materials Science, Ceramics
Michal Kurka, Karel Palka, Jiri Jancalek, Stanislav Slang, Miroslav Vlcek
Summary: This study explored the preparation and structuring of chalcogenide glass thin films, demonstrating that solution-processed films can be structured at lower temperatures than thermally evaporated films. The findings suggest potential applications in various fields with the ability to structure films at significantly reduced temperatures.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2021)
Article
Materials Science, Multidisciplinary
Alaa M. Abd-Elnaiem, A. Z. Mahmoud, Samar Moustafa
Summary: Amorphous Ge20Se76Sn4 thin films were prepared via thermal evaporation technique, and the effects of introducing Sn on the film's structure and optical properties were studied. The annealing process was found to be able to tune the optical parameters, with annealing temperature affecting film crystallinity and defect density. The refractive index increased with higher annealing temperatures, indicating changes in the optical characteristics of the films.
Article
Chemistry, Multidisciplinary
Ruiming Li, Fang Yao, Yalun Xu, Songxue Bai, Zhenglin Jia, Qianqian Lin
Summary: Germanium, indium gallium arsenide, indium antimonide, and mercury cadmium telluride dominate as short-wavelength infrared photo-sensing materials. However, their complex fabrication process and high production cost limit their widespread applications. Recent studies have shown that TexSe1-x has great potential for infrared photodetection, but the current devices suffer from high dark current and poor performance. In this work, high-quality TexSe1-x films were fabricated using thermal evaporation and low-temperature annealing, and the optoelectronic properties were systematically investigated and optimized. The resulting photodiodes based on the optimized TexSe1-x thin films exhibited high responsivity, reduced dark and noise current density, and a fast response time. Prototypical devices based on Te0.65Se0.35 thin films were successfully demonstrated for optical communications, showing the potential for low-cost short-wavelength infrared photodetection.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Michael F. Sawatzki, Hans Kleemann, Bahman K. Boroujeni, Shu-Jen Wang, Joern Vahland, Frank Ellinger, Karl Leo
Summary: Current organic electronic devices are typically based on disordered films, but organic single crystals have been shown to offer the high carrier mobilities needed for high-performance devices. However, the complex manufacturing and processing of these crystals, as well as the difficulty of integrating doping, have limited their practical applications. This study demonstrates that highly ordered, doped thin films can be prepared to achieve high-performance organic devices on various substrates.
Article
Physics, Condensed Matter
N. -A. Hassan, Zainab N. Jaf, Seham Hassan Salman, Iman Hameed Khudayer, Hanaa Ibrahem, Hussein A. Miran
Summary: CuAl0.7In0.3Te2 thin films were deposited on glass substrates using thermal evaporation technique. The films were then annealed at different temperatures. XRD, FESEM, AFM, and UV-vis were used to characterize the films. The results show that In-substituted films exhibit high optical absorbance and annealing can enhance the optical performance of both pure and In-doped films. The obtained results are important for optoelectronic applications.
SOLID STATE COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Wei Li, Yalun Xu, Jiali Peng, Ruiming Li, Jiannan Song, Huihuang Huang, Lihao Cui, Qianqian Lin
Summary: X-ray detection is widely used in medical diagnosis, security checking, and environmental monitoring, but most commercial X-ray detectors are based on complex and costly fabrication processes using inorganic semiconductors. Metal halide perovskites have emerged as promising candidates for ionizing radiation detection, possessing high attenuation coefficient, long carrier lifetime, and excellent charge transport properties. Flexible and large-area X-ray detectors with state-of-the-art performance have been achieved through the optimization of active layer thickness and highly efficient thermal co-evaporation deposition of formamidinium lead iodide perovskite films.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Pengchang Wang, Chi Zhang, Majiaqi Wu, Jianhua Zhang, Xiao Ling, Lianqiao Yang
Summary: Coating silver nanowires with different sizes of Ti3C2Tx can enhance their conductivity and stability, resulting in high-performance flexible optoelectronic devices. The optimized AgNW/MXene TCFs exhibit low sheet resistance, high optical transmittance, and excellent stability under various stress tests.
Article
Nanoscience & Nanotechnology
Changjian Liu, Jinyi Deng, Lin Gao, Jingliang Cheng, Yujie Peng, Hongjuan Zeng, Wei Huang, Liang-Wen Feng, Junsheng Yu
Summary: Porous films provide a simple strategy for balancing the electron/hole transport and ion doping/dedoping process in organic electrochemical transistors (OECTs). In this study, a 3D integrated approach was demonstrated to achieve enhanced transconductance (g(m)) and mechanical stretchability by constructing a multilayer breath-figured porous polymer channel. The porous structure not only provides efficient ion-electron coupling and transport pathways, but also offers resistance against mechanical deformation. The results showed that the 3D porous structure enhanced the stretchability and electrical performance of OECTs, making it a promising approach for stretchable electronics.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Wenxuan Zhang, Jie Wang, Weizhen Zhang, Defeng Cui, Tao Cheng, Donghai Qiu, Bo Lu, Chuntai Liu, Changyu Shen
Summary: Triboelectric nanogenerators based on epoxy-derived vitrimers (EV-TENG) are developed as durable, repairable, and recyclable energy-harvesting devices. The EV films show excellent flexibility and ductility with smaller energy dissipation under external deformations. The devices can self-repair by heating treatment and can be recycled without losing the original triboelectric performance and structural integrity. This research demonstrates the potential applications of vitrimers derived from industrial raw materials in developing repairable, recyclable, and scalable energy-harvesting electronics.
APPLIED MATERIALS TODAY
(2022)
Article
Chemistry, Multidisciplinary
Jiufeng Dong, Li Li, Peiqi Qiu, Yupeng Pan, Yujuan Niu, Liang Sun, Zizhao Pan, Yuqi Liu, Li Tan, Xinwei Xu, Chen Xu, Guangfu Luo, Qing Wang, Hong Wang
Summary: In this work, a molecular engineering strategy is proposed to regulate the conduction of polymer dielectrics at elevated temperatures by bonding NH2-POSS with PI. The NH2-POSS with a wide-bandgap increases the energy levels of the PI and induces the formation of deep traps in the hybrid films, effectively restraining carrier transport. The NH2-POSS terminated PI film exhibits high discharged energy density, gravimetric energy density, charge-discharge efficiency, cyclability, and power density at 200 degrees C, making it a promising candidate for high-temperature high-energy-density capacitors.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Joachim E. Sestoft, Aske N. Gejl, Thomas Kanne, Rasmus D. Schlosser, Daniel Ross, Daniel Kjaer, Kasper Grove-Rasmussen, Jesper Nygard
Summary: Unlocking the full potential of nanocrystals in electronic devices is achieved through a scalable platform that combines microtomy with vapor-liquid-solid growth of III/V nanowires. This platform allows for deterministic transfer of large arrays of nanocrystals, enabling single unit control and free choice of substrate. Electronic devices fabricated on cross-sectioned InAs nanowires demonstrate quantum phenomena such as conductance quantization, single-electron charging, and wave interference. Furthermore, this platform can host rationally designed semiconductor/superconductor networks relevant to emerging quantum technologies.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Jae-Hyeok Cho, Ji-Young Go, Tan Tan Bui, Seunguk Mun, Yunseok Kim, Kyunghan Ahn, Yong-Young Noh, Myung-Gil Kim
Summary: Metal halide perovskites have been studied for their p-type doping and defect passivation effects using xanthate additives. Sulfur introduced to the perovskite film can reduce electrical defects and increase hole concentration. The research confirms the p-type doping effect and demonstrates improved electrical performance in (PEA)(2)SnI4 thin-film transistor with sulfur doping.
ADVANCED ELECTRONIC MATERIALS
(2023)
Article
Chemistry, Physical
Taewan Roh, Huihui Zhu, Wonryeol Yang, Ao Liu, Yong-Young Noh
Summary: Metal halide perovskites are promising next-generation semiconductors for optoelectronic devices. This study focuses on the effect of ion migration on the charge-transport properties of Sn2+ perovskite using a transistor as a test platform. The addition of copper iodide to the perovskite film enabled the supply of mobile ions, resulting in abnormal transitions in the electrical characteristics and high transient field-effect mobility. This research provides insights for understanding ion migration in Sn2+ perovskites and designing novel perovskite-based electronics.
ACS ENERGY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Wonryeol Yang, Geonwoong Park, Ao Liu, Hock Beng Lee, Jae-Wook Kang, Huihui Zhu, Yong-Young Noh
Summary: 2D tin-based perovskites are widely researched due to their stability and optoelectronic properties, but their charge-transport properties are limited and the organic ligands hinder high-mobility electronics. Blending 3D counterparts into 2D perovskites can combine the high mobility and stability. In this study, p-channel 2D/3D tin-based hybrid perovskite TFTs with high performance and reliability are reported.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Taoyu Zou, Yong-Young Noh
Summary: Two-dimensional (2D) transition metal dichalcogenides (TMDs) show great potential as materials for future CMOS technology due to their atomic thickness and excellent properties. Solution processing of 2D TMD dispersions offers advantages such as low-temperature processing and cost-effective manufacturing, making it suitable for large-scale flexible and wearable electronics. However, solution-processed CMOS electronics using 2D TMD semiconducting materials is still in its early stages and requires further research.
ACCOUNTS OF MATERIALS RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Ji-Young Go, Gwon Byeon, Taesu Choi, Shuzhang Yang, Wenwu Li, Yong-Young Noh
Summary: This study explores the potential of using an organic salt, N,N-dimethylanilinium tetrakis(pentafluorophenyl)borate, as a dopant for Sn-based perovskite devices. The thin film transistors based on the doped 2D/3D perovskite PEAFASnI(3) show remarkable improvement in hole mobility, with a low subthreshold swing, small sweep hysteresis, and exceptional bias stability. The bulky chemical structure of the dopant prevents it from penetrating the perovskite lattice and provides surface passivation against Sn oxidation.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Taoyu Zou, Seongmin Heo, Ao Liu, Gwon Byeon, Huihui Zhu, Yong-Young Noh
Summary: This study demonstrates hysteresis-free solution-processed MoS2 TFTs with significantly reduced trap density using a PMMA dielectric. The TFTs exhibit a field-effect mobility of 7 cm(2)/V s and an ON/OFF current ratio of >106. After a 3000 s bias-stress test, the device's drain current only degrades by 7%.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Engineering, Electrical & Electronic
Ao Liu, Huihui Zhu, Sai Bai, Youjin Reo, Mario Caironi, Annamaria Petrozza, Letian Dou, Yong-Young Noh
Summary: Advancements in metal halide perovskite semiconductors have created renewed interest in their use in transistors. Improvements in performance have been made through fine-tuning of material compositions, processing techniques, and device engineering. However, more understanding is needed regarding the electrical properties of these materials, as well as their potential for use in large-area and microscale electronics.
NATURE ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Huihui Zhu, Wonryeol Yang, Youjin Reo, Guanhaojie Zheng, Sai Bai, Ao Liu, Yong-Young Noh
Summary: High-performance lead-free perovskite thin-film transistors with low-defect channel-dielectric interfaces can be fabricated using a cation substitution method. Pure-tin perovskite thin-film transistors with triple A cations exhibit high-quality cascaded tin perovskite channel films with low-defect, phase-pure perovskite/dielectric interfaces. The optimized thin-film transistors demonstrate comparable performance to commercial low-temperature polysilicon transistors, with high hole mobilities and on/off current ratios.
NATURE ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
Ao Liu, Huihui Zhu, Soonhyo Kim, Youjin Reo, Yong-Sung Kim, Sai Bai, Yong-Young Noh
Summary: This study demonstrates the use of antimony fluoride (SbF3) as a potent hole inhibitor and the development of a SnF2/SbF3 co-additive approach to improve the performance of Sn2+ perovskite thin-film transistors.
