DataVXAdvanced MaterialsPaper
journal article·2017-09

Epitaxial Lift‐Off of Centimeter‐Scaled Spinel Ferrite Oxide Thin Films for Flexible Electronics

Lvkang Shen, Liang Wu, Quan Sheng, Chunrui Ma, Yong Zhang, Lu Lu, Ji Ma, Jing Ma, Jihong Bian, Yaodong Yang, Aiping Chen, Xiaoli Lu, Ming Liu, Hong Wang, Chun‐Lin Jia

Advanced Materials· Volume 29· Issue 33
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Source abstract

Abstract

Mechanical flexibility of electronic devices has attracted much attention from research due to the great demand in practical applications and rich commercial value. Integration of functional oxide materials in flexible polymer materials has proven an effective way to achieve flexibility of functional electronic devices. However, the chemical and mechanical incompatibilities at the interfaces of dissimilar materials make it still a big challenge to synthesize high‐quality single‐crystalline oxide thin film directly on flexible polymer substrates. This study reports an improved method that is employed to successfully transfer a centimeter‐scaled single‐crystalline LiFe5O8 thin film on polyimide substrate. Structural characterizations show that the transferred films have essentially no difference in comparison with the as‐grown films with respect to the microstructure. In particular, the transferred LiFe5O8 films exhibit excellent magnetic properties under various mechanical bending statuses and show excellent fatigue properties during the bending cycle tests. These results demonstrate that the improved transfer method provides an effective way to compose single‐crystalline functional oxide thin films onto flexible substrates for applications in flexible and wearable electronics.
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Research context

Polymers

OpenAlex topics: Thin-Film Transistor Technologies · Conducting polymers and applications · Advanced Sensor and Energy Harvesting Materials

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

Affiliations

School of Microelectronics and State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Xi'an 710049 China

College of Precision Instrument and Optoelectronic Engineering Tianjin University Key Laboratory of Optoelectronic Information and Technology (Ministry of Education) Tianjin 300072 China

State Key Laboratory for Mechanical Behavior of Materials and School of Materials Science and Engineering Xi'an Jiaotong University Xi'an 710049 China

State Key Laboratory of New Ceramics and Fine Processing & School of Materials Science and Engineering Tsinghua University Beijing 100084 China

Frontier Institute of Science and Technology Xi'an Jiaotong University Xi'an 710049 China

Center for Integrated Nanotechnologies (CINT) Los Alamos National Laboratory Los Alamos NM 87545 USA

State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology School of Microelectronics Xidian University Xi'an 710071 China

Ernst Ruska Centre for Microscopy and Spectroscopy with Electrons Forschungszentrum Jülich D‐52425 Jülich Germany

Funding

National Natural Science Foundation of China · Natural Science Foundation of Tianjin City

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