Article
Nanoscience & Nanotechnology
Geetanjali Deokar, Abdeldjalil Reguig, Manoj Tripathi, Ulrich Buttner, Alberto Fina, Alan B. Dalton, Pedro M. F. J. Costa
Summary: This study presents a flexible and efficient heater based on a nanoscale-thick graphite film. The heater exhibits stable performance in a wide temperature range and has a fast response time, achieving high temperatures at low power.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Ying Li, Shiqi Yin, Yuchen Du, Hui Zhang, Jiawang Chen, Zihan Wang, Shaotian Wang, Qinggang Qin, Min Zhou, Liang Li
Summary: This article reports a liquid metal-based exfoliation technique for fabricating a-IZTO films with nanometer thickness. The films have advantages such as large size, high transmittance, and flexibility, and have been successfully applied in the fabrication of thin film transistors and photodetectors.
Article
Physics, Applied
Qiulin Qu, Qi Liu, Lufeng Chen, Yingxiang Li, Hang Pan, Jian Chen, Mingkai Li, Yinmei Lu, Yunbin He
Summary: In this study, amorphous Tm-Ga2O3 films were grown on flexible mica substrates for the development of photodetectors with broadened bandgap and lessened oxygen vacancies. These amorphous films exhibited high performance with low dark current and fast response speed, and maintained good performance after multiple bending cycles. This research sheds light on the potential of flexible devices based on amorphous Tm-Ga2O3 for solar-blind DUV detection.
APPLIED PHYSICS LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Ran Ding, Yongxin Lyu, Zehan Wu, Feng Guo, Weng Fu Io, Sin-Yi Pang, Yuqian Zhao, Jianfeng Mao, Man-Chung Wong, Jianhua Hao
Summary: 2D hybrid perovskite ferroelectrics, such as EA(4)Pb(3)Br(10) SCFs, exhibit in-plane multiaxial ferroelectricity and effective piezoelectric coefficient, showing great potential for enhancing photodetector performance through the observation of the piezo-phototronic effect. Under external strains, the responsivity of flexible photodetectors based on EA(4)Pb(3)Br(10) SCFs can be remarkably enhanced by up to 284%. These findings shed light on piezo-phototronic devices and offer a promising avenue to broaden functionalities of hybrid perovskite ferroelectrics.
ADVANCED MATERIALS
(2021)
Article
Engineering, Electrical & Electronic
Xiao-Xi Li, Guang Zeng, Yu-Chun Li, Hao Zhang, Zhi-Gang Ji, Ying-Guo Yang, Man Luo, Wei-Da Hu, David Wei Zhang, Hong-Liang Lu
Summary: This article presents a high responsivity and fully flexible Ta-doped beta-Ga2O3 DUV phototransistor with outstanding optoelectrical properties and mechanical flexibility, showing potential applications in UV imaging and artificial intelligence.
NPJ FLEXIBLE ELECTRONICS
(2022)
Article
Engineering, Environmental
Otavio Augusto Titton Dias, Samir Konar, Viktoriya Pakharenko, Antimo Graziano, Alcides Lopes Leao, Jimi Tjong, Shaffiq Jaffer, Teng Cui, Tobin Filleter, Mohini Sain
Summary: Nanocellulose backbones highly substituted with thiophene and long fatty acid side chains were synthesized, resulting in enhanced electrical conductivity. The formation of a percolation network improved energy transfer. Optimization of the nanocellulose backbone structure resulted in higher electrical conductivity through increased interaction between active moieties.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Nanoscience & Nanotechnology
Krishan Kumar, Reena Yadav, Sarita Devi, Preetam Singh, Sudhir Husale, Sachin Tyagi, Davinder Kaur
Summary: The present study investigates the photo-response of a hybrid dimensional nanoscale heterostructure fabricated on a flexible substrate. The results show that the flexible heterostructure has a significant response to UV to NIR wavelengths, even in the self-powered mode, and has fast response times.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
Chao Liang, Hao Gu, Junmin Xia, Tanghao Liu, Shiliang Mei, Nan Zhang, Yonghua Chen, Guichuan Xing
Summary: A high-performance photodetector based on single-crystal-like phase-pure 2DRP perovskite films is reported by designing a novel spacer source. Experimental and theoretical evidence shows that phase-pure films substantially enhance the performance and stability of optoelectronic devices.
Article
Engineering, Electrical & Electronic
Xin Zhou, Ming Li, Jinzhong Zhang, Liyan Shang, Kai Jiang, Yawei Li, Liangqing Zhu, Junhao Chu, Zhigao Hu
Summary: A stamp-based printing technique was used to transfer β-Ga2O3 films onto flexible substrates, leading to the successful fabrication of flexible solar-blind photodetectors and imaging sensor arrays with excellent optoelectrical performances and imaging capability. Wearable UVC alarms based on β-Ga2O3/PET were also developed for real-time monitoring of UVC radiation.
IEEE ELECTRON DEVICE LETTERS
(2022)
Article
Nanoscience & Nanotechnology
Xiaozheng Wang, Jia Li, Yifu Chen, Junhui Ran, Yongbo Yuan, Bin Yang
Summary: This study presents a facile spray-coating approach to deposit thick and high-quality cesium lead halide perovskite films for filterless narrowband photodetectors. The photodetection behavior is influenced by the film thickness and the internal electric field. By changing the halogen composition of perovskites, the peak position of the narrowband spectral photoresponse can be tuned. This research not only provides a controllable method for developing thick perovskite films but also offers important guidance for designing practical filterless narrowband photodetectors.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Zhenkun Gu, Ying Wang, Shiheng Wang, Ting Zhang, Rudai Zhao, Xiaotian Hu, Zhandong Huang, Meng Su, Qun Xu, Lihong Li, Yiqiang Zhang, Yanlin Song
Summary: A facile method to print large-scale perovskite films with high quality for flexible photodetectors is reported in this study, by introducing a soluble polyethylene oxide (PEO) layer during the inkjet printing process to control the nucleation and crystal growth of perovskite. The printed perovskite films show excellent mechanical performance and high quality, opening up new opportunities for the fabrication of diverse wearable optoelectronic devices.
Article
Engineering, Electrical & Electronic
Albert J. J. M. van Breemen, Riccardo Ollearo, Santhosh Shanmugam, Bart Peeters, Laurens C. J. M. Peters, Richard L. van de Ketterij, Ilias Katsouras, Hylke B. Akkerman, Corne H. Frijters, Francesco Di Giacomo, Sjoerd Veenstra, Ronn Andriessen, Rene A. J. Janssen, Eric A. Meulenkamp, Gerwin H. Gelinck
Summary: Solution-processed metal halide perovskite photodiodes on plastic substrates can create flexible image sensors with low dark currents and high resolutions. By using an amorphous indium gallium zinc oxide transistor backplane, the system achieves high photodetectivity in the 550 nm to 770 nm wavelength range, making it suitable for applications such as document scanning and biometric fingerprinting.
NATURE ELECTRONICS
(2021)
Article
Chemistry, Physical
Emine Karagoz, Cigdem Tuc Altaf, Ecenaz Yaman, Ipek Deniz Yildirim, Emre Erdem, Cem Celebi, Mehmet Fidan, Mehmet Sankir, Nurdan Demirci Sankir
Summary: This study examines the performance of a metal/semiconductor/metal-type flexible photodetector made from pristine and manganese doped ZnO nanorods. The results show that increasing the concentration of zinc precursor improves the detectivity and responsivity of the photodetectors. Additionally, manganese doping further enhances the detectivity and responsivity of the photodetectors. This research demonstrates the ability to create high-performance flexible photodetectors even with low concentrations of zinc precursor.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Junjiang Wu, Yuping Gao, Zhihua Zhou, Yahui Du, Junwei Liu, Jingjing Wang, Qian Wang, Kangkang Zhou, Kaihu Xian, Zhenjia Lin, Yu Chen, Wenchao Zhao, Sunsun Li, Vakhobjon Kuvondikov, Hang Yin, Jinyue Yan, Yongsheng Liu, Long Ye
Summary: The introduction of a facile and low-cost poly(3-pentylthiophene) (P3PT) as a versatile dopant-free polymer for hole transport materials (HTMs) in quantum dot (QD) and perovskite electronic devices has significantly improved photovoltaic performance and potential applications in emerging optoelectronics.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Angelos Xomalis, Caroline Hain, Alexander Groetsch, Fedor F. Klimashin, Thomas Nelis, Johann Michler, Jakob Schwiedrzik
Summary: This study reports a resist-free and scalable method for directly structuring thin metallic films on flexible polymeric substrates via e-beam patterning. Nanostructures as small as 5 nm in height with a sub micrometer lateral resolution can be achieved by controlling e-beam dose. The resist-free lithographic tool can dramatically reduce fabrication cost and be used for different applications including biomimetic surfaces, architectured metamaterials, strain-resilient flexible electronics, and wearable devices.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Physical
An'an Zhou, Qianqian Yang, Ke Xu, Qiang Zhou, Jianyang Wu, Hua Bai
Summary: This study provides new insights into the elasticity of chemically modified graphene aerogels and demonstrates the influence of water molecules on the surface plasticization of the aerogels. By reducing the surface hydrophilicity with thermal treatment, the elasticity of the aerogels can be enhanced.
Article
Chemistry, Physical
Zheng-Zheng Li, Ming Li, Yu-Xuan Feng, Zhisen Zhang, Yue-E Wen, Qi-Qi Huang, Zihao Lu, Hua Bai, Hai-Long Wang, Bin-Bin Xu, Helmut Coelfen, Peter Fratzl, Shahrouz Amini, Yuan Jiang
Summary: The article discusses the importance and challenges of translating biomineralization principles into materials science to strengthen soft tissues through controlled crystallization. A crystallization technique based on graphene oxide is developed to form continuous nanocoatings on polymeric surfaces and enhance their tribological performance.
CHEMISTRY OF MATERIALS
(2021)
Article
Nanoscience & Nanotechnology
Hang Chi, Zewen Lin, Yuxin Chen, Renhao Zheng, Hong Qiu, Xiaolan Hu, Hua Bai
Summary: This paper reports on the direct ink writing 3D printing of multifunctional composite materials based on commercial epoxy resin and the recycling of printed composite materials. By adding graphene nanoplatelets as a thixotropic additive, the liquid epoxy resin can be shear-thinning and suitable for direct ink printing. The printed composite materials have high resolution, high mechanical strength, as well as high thermal and electrical conductivity, and fast thermo-induced shape memory response. The printed objects can be recycled by comminuting them into micropowders and used as a thixotropic agent for preparing recycled DIW ink.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
An'an Zhou, Jie Bai, Wenjing Hong, Hua Bai
Summary: This review provides a comprehensive summary of the electrochemical reduction of graphene oxide (GO) and the resulting electrochemically reduced graphene oxide (ERGO). The electrochemical reduction method offers advantages such as eco-friendliness, high efficiency, and controllability, enabling the direct growth of high-quality graphene on electrodes. The review covers the reduction mechanisms, the influence of experimental parameters on the reduction process and the properties of ERGO, as well as the fabrication of composites based on ERGO. Additionally, the applications of ERGO and its composites in various fields are discussed, along with the remaining challenges.
Article
Chemistry, Multidisciplinary
Zhifang Liu, Huaipeng Wang, Huaqiang Cao, Dan Xie, Chun Li, Haijun Yang, Wenqing Yao, Anthony K. Cheetham
Summary: Intercalation of ions significantly enhances the mechanical properties of black phosphorus, leading to the generation of high-strength phosphorene films, which demonstrate the potential for practical applications of black phosphorus devices.
ADVANCED MATERIALS
(2022)
Article
Multidisciplinary Sciences
Mingmao Wu, Hongya Geng, Yajie Hu, Hongyun Ma, Ce Yang, Hongwu Chen, Yeye Wen, Huhu Cheng, Chun Li, Feng Liu, Lan Jiang, Liangti Qu
Summary: This paper presents a laser-engraving strategy for producing graphene meta-aerogels with unusual characters. By reinforcing the graphene walls with nanofiber networks and using laser engraving, the macro-configurations of the graphene meta-aerogels can be arbitrarily regulated, resulting in highly elastic, robust, and stiff materials with large reversible elongation, light specific weight, and a wide range of Poisson's ratio.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Hongwu Chen, Huaipeng Wang, Chun Li
Summary: The utilization of hierarchical porous electrodes with buckling microstructures leads to high areal and volumetric capacitance in miniaturized supercapacitor devices. The hierarchically structured electrodes, assembled by compressing worm-like expanded titanium carbide MXene powders, provide a high porosity of 28.2 +/- 4.1%, mainly in the form of nanosized pores. Enhanced electrolyte diffusion in the interlayer space of the bent lattice with pillared intercalants is achieved at the sub-nanometer scale. These hierarchical structural features enable high-performance electrochemical energy storage devices with both high areal and volumetric energy density.
ADVANCED MATERIALS
(2022)
Article
Multidisciplinary Sciences
Jinmeng Zhang, Jianlong Yan, Yanan Zhao, Qiang Zhou, Yinxing Ma, Yaxian Zi, Anan Zhou, Shumin Lin, Longhui Liao, Xiaolan Hu, Hua Bai
Summary: The authors demonstrate high-performance load-bearing integrated electrochemical capacitors with high strength, large capacitance, and good machinability. Load bearing/energy storage integrated devices (LEIDs) are a promising solution to boost the overall energy density of mobile energy storage systems, such as electric cars and drones. The researchers prepare practical high-performance LEIDs with excellent mechanical strength and high energy storage ability using a new high-strength solid electrolyte. They also design and compare two basic types of multilayered structures for LEID, enhancing the practical bearing ability and working flexibility of the device. Additionally, the authors demonstrate the excellent processability of the LEID, allowing it to be formed into curved shapes and assembled into complex structures without affecting its energy storage ability.
NATURE COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Huiyong Li, Chen Shen, Shuai Sun, Chun Li, Hui Zhang, Zhong Zhang
Summary: Researchers have developed a needle-like array structure (NAS) by spraying and self-assembling a magnetic composite ink under an external magnetic field. The NAS exhibits extremely low hemispherical reflectance (<= 0.3%) over a wide spectral range of 300-2000 nm and stable omnidirectional absorption (incident angle insensitivity up to 70 degrees), making it one of the darkest surfaces ever reported. The NAS shows outstanding photothermal conversion, self-cleaning performance, flexibility, and thermal-aging resistance, offering a promising alternative for constructing ultrablack surfaces for practical applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Tiantian Gao, Yeye Wen, Chun Li, Huhu Cheng, Xiao-Rui Jin, Xinyu Ai, Yongan Yang, Kai-Ge Zhou, Liangti Qu
Summary: In this study, tunable arch-bridged reduced graphene oxide (rGO) nanofiltration membranes were developed through the application of voltage. These membranes demonstrated the ability to reject organic/anionic molecules under a finite voltage of 5 V. With assistance from the voltage, the positively-charged modified rGO membrane could universally reject both cationic and anionic dyes, even in harsh organic solvents. The efficient electrical modulation of these membranes was attributed to the synergetic effects of Donnan repulsion and size exclusion, making them promising for applications in industries such as pharmaceuticals.
Article
Chemistry, Multidisciplinary
Zetong Zhuang, Hongwu Chen, Chun Li
Summary: In this study, high-performance MXene films with excellent mechanical properties and electromagnetic interference shielding performance were successfully produced through a spatially confined evaporation approach. The films exhibited high tensile strength, modulus, and electrical conductivity, as well as superior EMI shielding effectiveness.
Article
Chemistry, Multidisciplinary
Xiaowen Qiu, Zewen Lin, Yanan Zhao, Jinmeng Zhang, Xiaolan Hu, Hua Bai
Summary: A new self-compositing strategy is developed in this paper to improve the conductivity of graphene nanoplatelet/thermosetting resin composites. The strategy involves crushing the conventional composite into micron-sized powders, which are then mixed with graphene nanoplatelets to form complex fillers. This self-compositing method enhances the electrical conductivity by creating a highly conductive network inside the composite material. It is a promising and general approach for enhancing the conductivity of thermosetting resin matrix composites.
Article
Chemistry, Multidisciplinary
Hao Huang, Longhui Liao, Zewen Lin, Deng Pan, Qu Nuo, Ting-Ting Wu, Yuan Jiang, Hua Bai
Summary: This article presents a combined strategy of Pickering emulsions and additive manufacturing for the development of ultralight conducting polymer foams with hierarchical pores and multifunctional performances. The resulting lightweight foams show excellent properties for applications in supercapacitor electrodes, planar micro-supercapacitors, and gas sensors. This emerging technology demonstrates the great potential of additive manufacturing with complex fluids for the generation of functional solids with lightweight nature and adjustable structure-function relationships.
Article
Chemistry, Multidisciplinary
Tiantian Gao, Yeye Wen, Chun Li, Huhu Cheng, Xiao-Rui Jin, Xinyu Ai, Yongan Yang, Kai-Ge Zhou, Liangti Qu
Summary: In this study, we report tunable arch-bridged reduced graphene oxide (rGO) nanofiltration membranes that can be modulated by applied voltage. The membranes exhibit complete rejection of organic/anionic molecules under a voltage of 5 V. By modifying the membrane with positive charges and applying voltage, the membranes show universal rejection of both cationic and anionic dyes, even in harsh organic solvents. The efficient electrical modulation is achieved through the synergistic effects of Donnan repulsion and size exclusion, enhanced by the electric field in arch-bridged rGO structures.
Article
Chemistry, Physical
Libin Chen, Jian Yang, Zhixuan Lu, Peng Dai, Xiaohong Wu, Yuhao Hong, Liangping Xiao, Ling Huang, Hua Bai, Shi-Gang Sun
Summary: In this study, a new type of sealed rechargeable lithium-lithium oxide battery based on reversible interconversion between superoxide (LiO2) and lithium peroxide (Li2O2) was reported. By using a free-standing oxygenated group-rich reduced graphene oxide aerogel (OR-rGO) as the cathode, the reversible stabilization of LiO2 was achieved during the charge process. The battery exhibited high operating potential up to 3.65 V and no O2 evolution, with excellent cycling stability for 700 cycles.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
