Review
Materials Science, Multidisciplinary
Weiwei Li, Zubair Akhter, Mohammad Vaseem, Atif Shamim
Summary: With the increasing demand for a new form of RF electronics in the era of IoT, 5G, and smart cities, this review summarizes the recent developments in printable transparent and conductive materials, inks, and methods for optically transparent RF passives. The challenges and potential solutions for achieving such designs are also discussed, along with future trends in the field of transparent RF electronics and printing electronics.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Nanoscience & Nanotechnology
Jie Qi, Chen Hang, Yuan Gao, Xingyu Jiang
Summary: Highbiocompatibility and stability against water and scratch are essential for liquid metal-based flexible electronics. In this study, we synthesized polydopamine-coated liquid metal nanoparticles (LMNPs) using a controllable and scalable thermal processing method. The PD@LM ink enabled high-resolution printing on various substrates, and the printed circuit showed high stability against repeated stretch in water and scratch. The PD@LM electrode demonstrated high biocompatibility, conductivity, and stretchability, making it suitable for applications such as recording changes in membrane potential and detecting electrocardiogram signals in vivo.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Wei-Shuo Chang, Ta-Sheng Chang, Chang-Ming Wang, Wei-Ssu Liao
Summary: Flexible and transparent electronics enable modern interactive designs using low-cost, lightweight, and flexible materials. This study presents a metal-free fabrication strategy for flexible conductive films, utilizing molecular bridging to combine different materials and achieve superior physical properties. These films can be used to build arbitrary conductive circuits and function as normal electronics when integrated with multiple electronic parts, leading to the future development of flexible or foldable devices with complex circuits.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Wei-Shuo Chang, Ta-Sheng Chang, Chang-Ming Wang, Wei-Ssu Liao
Summary: This study introduces a robust metal-free flexible conductive film fabrication strategy, which can achieve superior physical properties on the base of polyethylene terephthalate (PET), providing possibilities for the future development of flexible or foldable devices with complex circuits.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Xiaoli Duan, Yu Ding, Ruiyuan Liu
Summary: This article discusses the importance of flexible transparent electrodes in flexible organic solar cells and the advantages of using silver nanowires as an ideal candidate material. However, the stability of silver nanowires as transparent electrodes is a key limitation for their applications. The article provides a comprehensive analysis and summary of the failure mechanisms, reinforced materials, and stability enhancement strategies for silver nanowires, as well as surveys their application in flexible batteries.
MATERIALS TODAY ENERGY
(2023)
Article
Engineering, Environmental
Nan Sun, Hongjin Sun, Dongchen Tan, Qinglei Guo, Zhe Zhang, Zhiyuan Tao, Chengcheng Fang, Jingyuan Bu, Jijie Huang, Chengming Jiang
Summary: Transparent and flexible electronics research has immense potential in consumer electronics, healthcare, and renewable energy sectors. This study introduces a transparent and flexible zinc-ion solid-state battery (TFZSB) with all components made of transparent and soft materials. The TFZSB demonstrates high transmittance, strong mechanical stability, and a mass specific capacity of 122.6mAh/g, making it a breakthrough in wearable and smart electronics and bridging energy storage and flexibility/transparency domains.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Yanyan Li, Shaolei Wang, Jiaxue Zhang, Xiaohui Ma, Shitai Cao, Yuping Sun, Shuxuan Feng, Ting Fang, Desheng Kong
Summary: A facile physical deposition approach is established to create a liquid metal micromesh, which exhibits low resistance, high stretchability, and excellent durability, allowing for comfortable and long-term wearing. The stretchable and permeable liquid metal conductor shows promising potentials in next-generation epidermal electronics.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Manh Hoang Tran, Jong-Seong Bae, Jaehyun Hur
Summary: This study successfully prepared a wide-bandgap anatase TiO2 material for solar-blind deep-UV photoabsorption through a simple post-modification method. The modified TiO2 material exhibited low oxygen vacancies and increased bandgap, resulting in high detection performance and stability.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Dong Wook Kim, Jihye Kwon, Hyoung Seop Kim, Unyong Jeong
Summary: This study proposes a method of using metal nanofibers and organic semiconductor nanofibers to manufacture all-transparent nanofield-effect transistors, achieving reliable stretchability and excellent transparency. The highly integrated NF-FET array demonstrates good performance and stability under repeated mechanical deformations.
Article
Chemistry, Physical
Manh Hoang Tran, Jong-Seong Bae, Jaehyun Hur
Summary: This study introduces a facile method to prepare TiO2 for deep-UV photodetection and comprehensively investigates the effects of post-modification on the properties of TiO2. The HAc-modified TiO2-based deep-UV photodetector exhibits high detectivity and fast response time, showing excellent performance under zero bias.
APPLIED SURFACE SCIENCE
(2022)
Article
Multidisciplinary Sciences
Yanyan Li, Ting Fang, Jiaxue Zhang, Hangyu Zhu, Yuping Sun, Shaolei Wang, Desheng Kong, Yanqing Lu, Yonggang Huang
Summary: Self-healing is a bioinspired strategy for extending the life span of electronic devices by repairing damaged conductors. In this study, a compliant conductor with electrically self-healing capability is introduced, which combines ultrahigh sensitivity to minor damages and reliable recovery from ultrahigh tensile deformations. The conductor utilizes liquid metal microcapsules and a copper layer to efficiently restore metallic conductivity in response to structural damages. It demonstrates high conductivity, ultrahigh stretchability, instantaneous electrical recovery, and exceptional electromechanical durability, making it suitable for flexible and stretchable electronics. This development provides a promising approach to enhance the self-healing capability of compliant conductors.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2023)
Article
Chemistry, Physical
Guanhua Zhang, Xiuxue Liu, Huaizhi Liu, Xiaohu Wang, Fuqing Duan, Huihuang Yu, Zeqi Nie, Donghai Wei, Yapeng Zhang, Huihuang Pan, Huigao Duan
Summary: This study proposes a high-performance flexible transparent device based on a zinc-ion hybrid supercapacitor, which exhibits excellent optical transmittance, cycle stability, and energy density. The device maintains good mechanical properties even under extreme bending and twisting, and can be seamlessly integrated with various devices.
Review
Chemistry, Multidisciplinary
Viet Huong Nguyen, Dorina T. Papanastasiou, Joao Resende, Laetitia Bardet, Thomas Sannicolo, Carmen Jimenez, David Munoz-Rojas, Ngoc Duy Nguyen, Daniel Bellet
Summary: Transparent electrodes are crucial in various modern devices, and the search for alternative materials to replace conventional indium tin oxide (ITO) has led to the interest in metallic nanomaterials. This review provides a comparison between metallic nanomaterials and other transparent conductive materials, discusses the development and fabrication technologies of metal-based TCMs, examines the challenges they face in integration, and summarizes their successful and potential applications.
Article
Materials Science, Composites
Wenpeng Zhao, Yaoyao Liu, Can Zhao, Xinyi Shi, Xianqi Feng, Jun Xu, Shouguo Wang, Yumin Wu, Shouke Yan
Summary: A self-healable conductor was developed through in-situ silver mirror reaction on a swelled self-healing matrix, exhibiting fast self-healing speed, high conductivity, and good fatigue-resistant capability. With a hierarchical wrinkled structure, the conductor can be used as a sensor for a wide range of human motions.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Nanoscience & Nanotechnology
Riya Nag, Rama Kanta Layek, Abhijit Bera
Summary: Transparent, flexible, and chemically stable conducting electrodes are crucial for optoelectronic device fabrication. This study explores metal-semiconductor (MS) junctions utilizing two-dimensional (2D) MXene nanosheets and Al-doped ZnO nanoparticles. The heterojunctions were formed by layer-by-layer self-assembly on an indium tin oxide (ITO) substrate and characterized using scanning tunneling microscopy (STM) and spectroscopy. The results demonstrate the ability to manipulate the MS junction properties, such as rectification ratio and contact resistance, by functionalizing the 2D-metal MXene and doping the ZnO nanoparticles.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Chaitali Sow, Rajkumar Jana, Gangaiah Mettela, Ayan Datta, Giridhar U. Kulkarni
Summary: Metals exhibit crystal structure-dependent properties in bulk, micro-, or nanostructures. This study explores the stability of Au microcrystallites in unconventional lattices under common chemical adsorbates, revealing selective enhancement of diffraction intensity and lattice transformation. The facet preference of adsorbates affects the crystallinity and morphology of the crystallites.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Materials Science, Multidisciplinary
Remya K. Govind, Indrajit Mondal, Kaushik Baishya, Mukhesh K. Ganesha, Sunil Walia, Ashutosh K. Singh, Giridhar U. Kulkarni
Summary: This research successfully fabricates large-area transparent conducting electrodes with flexibility, low sheet resistance, and high transmittance through cost-effective methods. The electrodes exhibit high bendability and minimal change in resistance after 6000 bending cycles, showing potential for various applications.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Chemistry, Multidisciplinary
Shilpa Molakkalu Padre, S. Kiruthika, Shridhar Mundinamani, Ravikirana, Srivathsava Surabhi, Jong-Ryul Jeong, Kunabevu Mallikarjunappa Eshwarappa, Mudiyaru Subrahmanya Murari, Vignesh Shetty, Mamatha Ballal, S. C. Gurumurthy
Summary: In this study, gold, silver, and copper based mono- and bimetallic nanoparticles were synthesized using a cost-effective wet chemical route. The nanoparticles showed enhanced catalytic activity for the reduction/degradation of dyes and effective antibacterial activity.
Article
Nanoscience & Nanotechnology
Indrajit Mondal, Nilay Awasthi, Mukhesh K. Ganesha, Ashutosh K. Singh, Giridhar U. Kulkarni
Summary: Implementing simple and inexpensive energy-saving smart technologies in households can effectively achieve on-demand privacy control and reduce energy consumption. To meet the demand of the consumer market, an unconventional smart window that is cost-effective, power-efficient, and simple to fabricate is needed. A mist-driven transparency switching glass was developed, showing significant temperature reduction and the ability to be operated wirelessly through a cellphone application, making it commercially viable and suitable for IoT integration.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Mohit Verma, Gaurav Bahuguna, Arpit Saharan, Snehraj Gaur, Hossam Haick, Ritu Gupta
Summary: This study demonstrates the synthesis of metallic tin-doped Sn-SnO2 nanocomposite with high affinity towards xylene. The sensor shows a linear response to xylene in the 1-100 ppm range with a high sensitivity of 255% at 60 ppm. It is hardly affected by humidity variations and provides an effective solution for sensing indoor pollutants under humid conditions.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Chemistry, Physical
S. Kiruthika, Namuni Sneha, Ritu Gupta
Summary: Transparent and flexible supercapacitors are gaining attention for intelligent electronics due to their high-power density, fast charging/discharging ability, and longer lifespan. Achieving transparency is done by thin film or lithographic methods for nanostructured electrodes. This review discusses electrode materials, design, and fabrication techniques to achieve visible transparency in supercapacitors, along with basic concepts, device structures, and potential applications.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Nanoscience & Nanotechnology
Suman Kundu, Subi J. George, Giridhar U. Kulkarni
Summary: A high-performance visible-blind UV photodetector using 1D supramolecular nanofibers is reported, exhibiting high responsivity, selectivity, low power consumption, and good mechanical flexibility. The device performance is improved through tweaking electronic and ionic conduction pathways and optimizing electrode material, external humidity, applied voltage bias, and introducing additional ions. The nanofiber system shows great potential for integration in future electronic gadgets.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Indrajit Mondal, Mukhesh K. Ganesha, Ashutosh K. Singh, Giridhar U. Kulkarni
Summary: The major drawbacks of electrochromic smart windows (ECSWs) for zero-energy buildings include excessive cost, insufficient optical modulation, and limited functionality. A solution to this problem is proposed by optimizing the deposition conditions for WO3 sputtering on a cost-effective Al-mesh overlaid with SnO2. The optimized ECSW exhibits ultra-high switching contrast, fast response and recovery time, good cyclic stability, and excellent coloration efficiency. A large-area smart window with dual-functionality and a device with a quasi-solid electrolyte are also developed.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Nanoscience & Nanotechnology
Sukhwinder Singh, Imtej Singh Saggu, Sukhjinder Singh, Nitish Kumar, Kaiwen Chen, Zhengxi Xuan, Ritu Gupta, Mark T. T. Swihart, Sandeep Sharma
Summary: This study presents a chemiresistive sensor based on a MoS2/SWCNTs composite for the dual detection of DMF and NH3 at room temperature. The composite sensor showed good selectivity and response capabilities, along with environmental stability and increased surface area. These results provide a platform for developing next-generation gas sensors for diverse potential gas-sensing applications.
ACS APPLIED NANO MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Namuni Sneha, K. Selvisusmithasri, S. Kiruthika
Summary: In this study, a transparent conducting metal oxide, SnO2, is obtained using a novel metal-organic precursor, Sn-TOABr complex. The precursor is synthesized by transferring tin from the aqueous layer to the liquid-liquid interface, and the SnO2 thin films are deposited using modified atmospheric pressure chemical vapor deposition (MAPCVD) method at 450 degrees C. These thin films are crystalline, semiconducting, highly transparent, mechanically robust, and resistant towards corrosive media. Through this MAPCVD technology, protective coatings for arbitrary substrates can be achieved, and sub-500 nm patterns of SnO2 and Pt@SnO2 can be obtained using a simple direct micromolding technique that is cost-effective and offers a large throughput.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Tejaswini S. Rao, Suman Kundu, Bharath Bannur, Subi J. George, Giridhar U. Kulkarni
Summary: This article reports a two-terminal optically active device based on 1D supramolecular nanofibres, which mimics synaptic functions such as STP, LTP, PPF, STDP, and demonstrates its potential as a visual system.
Article
Nanoscience & Nanotechnology
Mukhesh K. Ganesha, Indrajit Mondal, Ashutosh K. Singh, Giridhar U. Kulkarni
Summary: Electrochromic (EC) devices are not widely commercialized due to their high cost. The best large-area devices in the market do not achieve a distinct dark-colored state and instead appear more like blue tinted glass. This study reports on the development of a high-performing porous WO3 thin film achieved by optimizing the sputtering process, resulting in an affordable dual-function EC energy-storage device. By using a hybrid electrode and multivalent electrolytes, the need for expensive components such as ITO electrodes and Li+ ion-based electrolytes can be eliminated while maintaining device performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Rohit Attri, Indrajit Mondal, Bhupesh Yadav, Giridhar U. Kulkarni, C. N. R. Rao
Summary: This article reports an artificial synaptic network that mimics the hierarchical structure of biological neural networks. The designed network exhibits threshold switching and ultra-low energy requirement, while providing wide range synaptic plasticity. The study reveals the scale-free correlation of enhancement in the device, suggesting its potential as an ideal platform for neuromorphic computing.
MATERIALS HORIZONS
(2023)
Article
Chemistry, Multidisciplinary
Mohit Verma, Gaurav Bahuguna, Sukhwinder Singh, Ankita Kumari, Dibyajyoti Ghosh, Hossam Haick, Ritu Gupta
Summary: Gas sensors based on 2D nanosheets of tin dioxide (SnO2) were developed for the detection of ammonia (NH3) with improved performance in terms of selectivity, sensitivity, and reliability. The SnO2 nanosheet sensor (SNS-14) exhibited low response to water molecules and specific reactivity to ammonia, even under high humidity conditions. It demonstrated high sensitivity to ammonia at 100 ppm concentration, with rapid response and recovery times. This advancement has significant implications for medical diagnostics and ecological surveillance.
MATERIALS HORIZONS
(2023)
