Article
Chemistry, Multidisciplinary
Matthew J. Griffith, Nathan A. Cooling, Daniel C. Elkington, Michael Wasson, Xiaojing Zhou, Warwick J. Belcher, Paul C. Dastoor
Summary: This study presents a highly sensitive pressure detector developed through inkjet printing of electroactive organic semiconducting materials, capable of rapidly converting shock wave inputs into amplified electronic signals. By optimizing the transistor response through variation of materials, solvents, and printing speeds, the printed device can quickly switch from non-conductive to conductive states at low voltages. The printed sensor operates without the need for gate voltage bias, offering a simple and low-cost solution for detecting stimuli in highly energetic systems.
Article
Materials Science, Multidisciplinary
Qian Li, Bang-Deng Du, Jian-Ye Gao, Bao-Yu Xing, Dian-Kai Wang, Ji-Fei Ye, Jing Liu
Summary: This study presents a synthesis and printing strategy for large area, wide bandgap, and room-temperature quasi-2D GaN through a plasma medicated liquid metal gallium surface-confined nitridation reaction mechanism. The developed fabrication process is compatible with various electronics manufacturing approaches, allowing for cost-effective growth of the third-generation semiconductor. The printed field-effect transistors based on the GaN exhibit p-type switching with high on/off ratio, high hole mobility, and small sub-threshold swing.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Chemistry, Multidisciplinary
Shanshan Liu, Xue Han, Yuchao Chai, Guangjun Wu, Weiyao Li, Jiangnan Li, Ivan da Silva, Pascal Manuel, Yongqiang Cheng, Luke L. Daemen, Anibal J. Ramirez-Cuesta, Wei Shi, Naijia Guan, Sihai Yang, Landong Li
Summary: Efficient separation of acetylene and carbon dioxide was achieved under ambient conditions using faujasite zeolites decorated with atomically-dispersed copper(II) sites. The system displayed an unprecedented separation factor and effective dynamic uptake of acetylene, offering high purity acetylene recovery.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Nanoscience & Nanotechnology
Silvia Demuru, Cheng-Hua Huang, Khaled Parvez, Robyn Worsley, Giorgio Mattana, Benoit Piro, Vincent Noel, Cinzia Casiraghi, Danick Briand
Summary: In this study, fully inkjet-printed graphene-gated organic electrochemical transistors (OECTs) on polymeric foil were demonstrated for the enzymatic-based biosensing of glucose and lactate. The graphene-gated transistors showed improved performance compared to printed silver-gated devices and other types of printed devices previously reported. The optimized sensing method and device configuration enabled the detection of multiple metabolites.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Inho Jeong, Kyungjune Cho, Seobin Yun, Jiwon Shin, Jaeyoung Kim, Gyu Tae Kim, Takhee Lee, Seungjun Chung
Summary: This study demonstrates the controllable surface charge transfer doping (SCTD) of molybdenum disulfide (MoS2) field-effect transistors using inkjet-printed benzyl viologen (BV). The BV-doped MoS2 FETs exhibit elaborately tailored electrical performance by adjusting the concentration and areal coverage of inkjet-printed BV dopants. The inkjet-printed SCTD method provides a feasible solution for modulating the electrical and optical performances of TMD-based devices.
Article
Materials Science, Multidisciplinary
Qihao Jin, Qiaoshuang Zhang, Junchi Chen, Tim Gehring, Santiago Eizaguirre, Robert Huber, Guillaume Gomard, Uli Lemmer, Rainer Kling
Summary: This study developed a novel surface modification process and digital encoding for direct inkjet printing of micro-etching-masks on hydrophobic elastomers, achieving a pixelated haze distribution. Compared to traditional mechanoresponsive smart windows, this new technology allows for haze tunability in either static or strain-applied state, enhancing its potential for use in high dynamic range signage displays.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Polymer Science
Sravya Jangareddy, Thomas Sun, Adam B. Burns, Richard A. Register
Summary: Experimental comparison between interaction energy densities measured on model polydiene-polyolefin blends (X-blend) and analogous block copolymers (X-BC) shows that random incorporation of styrene units into the saturated polybutadiene chain significantly enhances its compatibility with polyisoprene.
Article
Engineering, Chemical
Renjie Li, Jinyan Li, Linhua Rao, Hongjun Lin, Liguo Shen, Yanchao Xu, Jianrong Chen, Bao-Qiang Liao
Summary: The study proposed a method using inkjet printing and UV irradiation to modify mussel-inspired polyvinylidene fluoride membrane, demonstrating improved oil-water separation performance and stability under different pH values.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Polymer Science
My Linh Le, Douglas J. Grzetic, Kris T. Delaney, Kai-Chieh Yang, Shuyi Xie, Glenn H. Fredrickson, Michael L. Chabinyc, Rachel A. Segalman
Summary: Polyelectrolyte complexation allows for the compatibilization of polymers with different chemistries and control over blend morphology via electrostatic manipulation. By varying electrostatic parameters, such as counterion concentration or polymer charge fraction, the morphology of polymer complexes can be tuned from a homogeneously disordered blend to a weakly structured microemulsion. These systems have great potential for engineering the nanostructure of polymers for applications such as nanofiltration, catalysis, and energy storage.
Article
Chemistry, Physical
Rohitkumar Shailendra Singh, Katsuyuki Takagi, Toru Aoki, Jong Hyun Moon, Yoichiro Neo, Futoshi Iwata, Hidenori Mimura, Daniel Moraru
Summary: Carbon nanotube (CNT) bundles can be used to build hybrid CMOS-compatible devices on Si nanostructures. By using inkjet printing, we fabricated semiconductor single-walled CNT field-effect transistors on a CMOS-compatible platform. We developed a method to produce stable CNT solutions without surfactants, allowing for the dispersion of CNT bundles in the source-drain gaps of the transistors, providing paths for current flow.
Article
Nanoscience & Nanotechnology
Jewook Ha, Hyunjun Yoo, Jiseok Seo, Jinsu Yoon, Yongtaek Hong
Summary: We present a study on robust, transparent, and flexible thin-film transistors made of single-walled carbon nanotubes using an all-inkjet printing method. Our findings reveal that these thin-film transistors exhibit different photoresponses based on the power levels of incident light, distinguishing them from previous reports that classified them as photodetectors. Furthermore, these transistors show stability under daily illumination conditions, making them suitable for light-insensitive transparent and flexible electronic applications.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Review
Engineering, Chemical
Chen Wang, Myoung Jun Park, Young Woo Choo, Yuhan Huang, Sherub Phuntsho, Ho Kyong Shon
Summary: Recently, inkjet printing technology has gained attention for membrane fabrication and modification due to its advantages such as easy and fast process, minimal chemical consumption, and precise deposition. Understanding the inkjet printing technique for different membranes is crucial for accelerating its application in the field and producing advanced membranes with excellent performance.
Article
Nanoscience & Nanotechnology
Mingrui Chen, Dingzhou Cui, Nan Wang, Sizhe Weng, Zhiyuan Zhao, Fugu Tian, Xiaobo Gao, Keming He, Chen-Tu Chiang, Shahad Albawardi, Sarah Alsaggaf, Ghadeer Aljalham, Moh. R. Amer, Chongwu Zhou
Summary: Due to their simplicity, scalability, and cost efficiency, solution-processable two-dimensional (2D) semiconductors have become highly attractive for electronic applications, especially as channel materials for field-effect transistors (FETs). Inkjet printing is a lithography-free technique that allows drop-on-demand patterning of solution-processable 2D ink. However, inkjet-printed 2D FETs have shown limited performance due to the coffee-ring effect and the resulting discontinuity in the printed 2D material films.
ACS APPLIED NANO MATERIALS
(2023)
Article
Polymer Science
Matthew Laskoski, Boris Dyatkin, Naresh C. Osti, Jong K. Keum, Eugene Mamontov, Tristan Butler
Summary: By blending TPEB and Res resins, we can obtain thermosets with high char retention and low viscosity, which are beneficial for composite manufacturing. Our study on the dynamics and material properties during thermal curing provides insights into understanding and controlling this complex mechanism.
JOURNAL OF POLYMER SCIENCE
(2023)
Article
Engineering, Chemical
Hongli Xie, Liguo Shen, Yanchao Xu, Huachang Hong, Lining Yang, Renjie Li, Hongjun Lin
Summary: The wettability of membranes is crucial for treating oily wastewater. This study proposes a facile method using inkjet printing to optimize the tannic acid-based membrane modification process. By synergistically inducing tannic acid deposition with Fe3+ and SP, the hydrophobic polyvinylidene fluoride (PVDF) membrane is converted to a hydrophilic and underwater oleophobic membrane with high flux and separation efficiency. The optimized membrane also exhibits high antifouling property, reusability, and stability under near neutral pH conditions.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Songman Ju, Chaomin Mao, Yang Liu, Yangbin Zhu, Zhongwei Xu, Kaiyu Yang, Tailiang Guo, Hailong Hu, Fushan Li
Summary: This study proposes a strategy to inhibit phase separation of blue perovskite quantum dots (PQDs) by introducing alkali metal, and obtain stable perovskite quantum dot light-emitting diodes (PQLEDs). The PQLEDs based on this strategy show an external quantum efficiency (EQE) of 1.87% and a brightness of 3757 cd m-2, and can still guarantee stable electroluminescence (EL) spectra at a bias of up to 14 V.
ORGANIC ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
Jieyu Bai, Hailong Hu, Yongshen Yu, Yangbin Zhu, Zhongwei Xu, Wenchen Zheng, Haobing Zhao, Lihua Lin, Tailiang Guo, Fushan Li
Summary: In this study, multi-component functional QD inks were developed for inkjet printing InP array QLEDs, and a ZnO microlens array was prepared to enhance the light extraction efficiency. The obtained device showed significant improvement in external quantum efficiency and achieved high performance. These results may promote the applications of high performance environment-friendly QLEDs by inkjet printing technology.
ORGANIC ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Zhengxian Zhou, Xianghong Zhang, Weixi Ye, Di Liu, Yongjie Lin, Jiaming Lin, Tailiang Guo, Huipeng Chen
Summary: In this article, a switching array circuit with an artificial neuron is proposed, acting as a discrete control center for the array circuit and effectively reducing the area of the array driving circuit. The value of load resistance is found to affect the switching of individual devices and control the branch threshold voltage range, thereby affecting the information processing capability of the branch. This optimized array circuit driving strategy provides a potential platform for promoting the development of electronic devices and future high-density array circuits.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Engineering, Electrical & Electronic
Yafang Zeng, Xianghong Zhang, Yanxue Hao, Yi Zou, Bangyan Zeng, Qian Yang, Tailiang Guo, Huipeng Chen, Wei Chen
Summary: In this study, a neural device based on IGZO memristors fabricated by the solution method is proposed, which has simple process steps, no vacuum treatment process, rapid film formation, easy doping, and more suitability for low-temperature film deposition on a flexible substrate, as well as compatibility with a thin-film transistor (TFT). The solution-processed IGZO-based neurons show great potential for neuromorphic systems.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2023)
Article
Physics, Applied
Cihai Chen, Qizhen Chen, Qian Yang, Huipeng Chen, Tailiang Guo
Summary: Developing p-type oxide thin-film transistors (TFTs) is crucial for their application in CMOS components. However, their inferior performance compared to n-type TFTs remains a challenge. This study proposes a low temperature material engineering approach using n-type nanoparticles (NPs) to prepare p-type transparent NiOx TFTs. The addition of NPs significantly improves the electrical performance of the TFTs by enhancing the band alignment, increasing oxidation state, and improving the interface quality. This facile material engineering strategy shows great potential for preparing p-type transparent MO-TFTs for CMOS circuits on flexible substrates.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Optics
Enguo Chen, Mengyun Zhao, Kangkang Chen, Huajian Jin, Xiaogang Chen, Jie Sun, Tailiang Guo, Qun Yan
Summary: This paper investigates the influence of metamaterials on the light extraction and shaping of micro-scale light-emitting diodes (μLEDs) from the perspective of one-dimensional and two-dimensional photonic crystals (PhCs). The simulation results show that the optimization of PhCs design and sidewall treatment significantly improve the light extraction efficiency of μLEDs. Additionally, it is found that 2D air ring PhCs can highly concentrate the light distribution without the need for any light shaping devices. The surprising capabilities of metamaterials provide new directions and strategies for the design and application of μLED devices.
Article
Optics
Yongzhen Liu, Tianwen Xia, Aochen Du, Tao Liang, Zhengui Fan, Enguo Chen, Jie Sun, Qun Yan, Tailiang Guo
Summary: A patterned conical microstructure array is designed on the bottom layer of micro-LED to eliminate color shift and improve light extraction efficiency. This design can perfectly meet Lambert's cosine law and keep the color shift below 0.02 with different viewing angles.
Article
Materials Science, Multidisciplinary
Yuyan Peng, Yalian Weng, Guixiong Chen, Deming Hong, Wenwen Wang, Chunliang Chen, Xiongtu Zhou, Yongai Zhang, Chaoxing Wu, Tailiang Guo, Qun Yan
Summary: In order to overcome the trade-off relationship between high flexibility and low permeability, a multi-layered structure of Al2O3/acrylic with wavy stacking interfaces was proposed. The wavy structures were generated by combining argon plasma treatment and soft-lithography. The wavy structures improved the mechanical properties of Al2O3/acrylic and increased the lifetime of OLEDs under bending conditions.
ORGANIC ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
Wenbo Wu, Zunxian Yang, Zihong Shen, Yuliang Ye, Bingqing Ye, Yuanqing Zhou, Qiaocan Huang, Songwei Ye, Zhiming Cheng, Hongyi Hong, Zongyi Meng, Zhiwei Zeng, Qianting Lan, Jiaxiang Wang, Ye Chen, Hui Zhang, Tailiang Guo, Yun Ye, Zhenzhen Weng, Yongyi Chen
Summary: Metal-organic frameworks (MOFs) are potential electrode materials for lithium-ion batteries (LIBs) due to their structural diversity and high controllability. However, their poor electrical conductivity and limited exposed active sites hinder their direct use. Therefore, a new preparation method is proposed, involving the reaction of vapors containing organic ligands with porous carbon fibers loaded with metal ions under high temperature and pressure. The resulting Co-MOF/Pcnf composite exhibits improved battery performance and stability, making it a promising candidate for LIB anodes.
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
(2023)
Article
Multidisciplinary Sciences
Xiaoliang Wang, Lilin He, Jacob Sumner, Shuo Qian, Qiu Zhang, Hugh O'Neill, Yimin Mao, Chengxia Chen, Abdullah M. Al-Enizi, Ayman Nafady, Shengqian Ma
Summary: Immobilization of biomolecules into porous materials can improve their stability and ease of reuse. Metal-Organic Frameworks (MOFs) are promising for immobilizing large biomolecules, but their spatial arrangement within the pores is still not fully understood. In this study, researchers used in situ small-angle neutron scattering (SANS) to investigate the spatial arrangement of green fluorescent protein in a mesoporous MOF, revealing that protein molecules form assemblies through adsorbate-adsorbate interactions across pore apertures. This finding provides a crucial foundation for understanding protein structural basics in the confinement environment of MOFs.
NATURE COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Liwen Deng, Xiang Zhang, Yinguo Yan, Yuze Xiao, Ziming Yao, Enguo Chen, Sheng Xu, Yun Ye, Jie Sun, Qun Yan, Tailiang Guo
Summary: Pixelated quantum dot color conversion layer (PQDCCL) is a promising approach for full-color micro-LED displays. However, the QD excitation by ambient light affects the contrast ratio and readability of the display, and this issue has not been fully explored. This paper establishes theoretical models to analyze the contrast ratio of a micro-LED display and validates it through simulation and experiments. The results show the potential of the proposed model for QD-based micro-LED displays and provide support for estimating the contrast ratio of self-luminous color-converted displays.
RESULTS IN PHYSICS
(2023)
Review
Materials Science, Multidisciplinary
Yueting Zheng, Yongshen Yu, Wei Chen, Hailong Hu, Tailiang Guo, Fushan Li
Summary: Displays as carriers of visual information play an indispensable role in our daily life. With the expanding market demand for microdisplay products, high-resolution self-emissive displays have been rapidly developed. However, there is no comprehensive review of HR light-emitting devices. This review focuses on HR light-emitting technologies and serves as a valuable reference for the development of the microdisplay industry and studies on microdisplays.
SCIENCE CHINA-MATERIALS
(2023)
Reprint
Optics
Yalian Weng, Guixiong Chen, Xiongtu Zhou, Yongai Zhang, Qun Yan, Tailiang Guo
Summary: The fabrication and performance of patterned quantum dot color conversion films using direct photolithography is crucial for μ LED full-color displays. By optimizing the photolithography process, uniform patterned quantum-dot photoresist (QDPR) films with controllable thickness and size were achieved. The maximum color conversion efficiency (CCE) of the patterned QDPR films reached 67.46%, with a thickness of only 4.28 μm. Moreover, the use of distributed Bragg reflector (DBR) and black matrix (BM) helped regulate the outgoing light and reduce optical crosstalk. A color conversion device combining a blue μ LED and the QDPR films incorporated with DBR and BM showed a color gamut of 120.53% NTSC, demonstrating its potential for next-generation high-resolution full-color displays.
JOURNAL OF LUMINESCENCE
(2023)
Article
Optics
Jinyu Ye, Yuyan Peng, Canlin Luo, Haonan Wang, Xiongtu Zhou, Tailiang Guo, Jie Sun, Qun Yan, Yongai Zhang, Chaoxing Wu
Summary: A novel pixelation strategy using fluorine ion implantation with tailored injection energy and dose has been proposed to address the technological challenges in pixelation of Micro-LED. Both simulation and experiments show that the method effectively controls the injection depth, spatial distribution, and lateral spreading, leading to improved uniformity and electrical isolation of the pixels.
JOURNAL OF LUMINESCENCE
(2023)
Article
Materials Science, Multidisciplinary
Yuanqing Zhou, Zunxian Yang, Qiaocan Huang, Yuliang Ye, Bingqing Ye, Zihong Shen, Wenbo Wu, Zhiwei Zeng, Zeqian Hong, Zongyi Meng, Hongyi Hong, Songwei Ye, Zhiming Cheng, Qianting Lan, Jiaxiang Wang, Ye Chen, Hui Zhang, Tailiang Guo, Fushan Li, Yongyi Chen, Zhenzhen Weng
Summary: A simple and feasible hybrid ligand passivation strategy is reported to modify the surface defects of PQDs, effectively inhibiting vacancy defects and improving electrical performance. The results show that the guanidine ion is closely bonded to the surface of PQDs, reducing defect density and improving carrier mobility.
ORGANIC ELECTRONICS
(2023)