DataVXAdvanced MaterialsPaper
journal article·2023-02

Large‐Scale Ultra‐Robust MoS2 Patterns Directly Synthesized on Polymer Substrate for Flexible Sensing Electronics

Weiwei Li, Manzhang Xu, Jiuwei Gao, Xiaoshan Zhang, He Huang, Ruoqing Zhao, Xigang Zhu, Yabao Yang, Lei Luo, Mengdi Chen, Hongjia Ji, Lu Zheng, Xuewen Wang, Wei Huang

Advanced Materials· Volume 35· Issue 8
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Source abstract

Abstract

Abstract Synthesis of large‐area patterned MoS2 is considered the principle base for realizing high‐performance MoS2‐based flexible electronic devices. Patterning and transferring MoS2 films to target flexible substrates, however, require conventional multi‐step photolithography patterning and transferring process, despite tremendous progress in the facilitation of practical applications. Herein, an approach to directly synthesize large‐scale MoS2 patterns that combines inkjet printing and thermal annealing is reported. An optimal precursor ink is prepared that can deposit arbitrary patterns on polyimide films. By introducing a gas atmosphere of argon/hydrogen (Ar/H2), thermal treatment at 350 °C enables an in situ decomposition and crystallization in the patterned precursors and, consequently, results in the formation of MoS2. Without complicated processes, patterned MoS2 is obtained directly on polymer substrate, exhibiting superior mechanical flexibility and durability (≈2% variation in resistance over 10,000 bending cycles), as well as excellent chemical stability, which is attributed to the generated continuous and thin microstructures, as well as their strong adhesion with the substrate. As a step further, this approach is employed to manufacture various flexible sensing devices that are insensitive to body motions and moisture, including temperature sensors and biopotential sensing systems for real‐time, continuously monitoring skin temperature, electrocardiography, and electromyography signals.
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Research context

PolymersMaterials processing

OpenAlex topics: 2D Materials and Applications · Advanced Sensor and Energy Harvesting Materials · MXene and MAX Phase Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Frontiers Science Center for Flexible Electronics (FSCFE) & Shaanxi Institute of Flexible Electronics (SIFE) Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China

Shaanxi Key Laboratory of Flexible Electronics (KLoFE) Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China

MIIT Key Laboratory of Flexible Electronics (KLoFE) Northwestern Polytechnical University (NPU) 127 West Youyi Road Xi'an 710072 China

Key Laboratory of Flexible Electronics of Zhejiang Province Ningbo Institute of Northwestern Polytechnical University 218 Qingyi Road Ningbo 315103 China

State Key Laboratory of Organic Electronics and Information Displays Institute of Advanced Materials (IAM) Nanjing University of Posts & Telecommunications Nanjing 210023 China

Key Laboratory of Flexible Electronics(KLoFE)and Institute of Advanced Materials (IAM) Nanjing Tech University (NanjingTech) Nanjing 211800 China

Funding

National Key Research and Development Program of China · National Natural Science Foundation of China · Natural Science Foundation of Shaanxi Province · Natural Science Foundation of Ningbo · Fundamental Research Funds for the Central Universities · Northwestern Polytechnical University · Key Research and Development Projects of Shaanxi Province

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