Jiang Jie, Bitla Yugandhar, Huang Chun-Wei, Do Thi Hien, Liu Heng-Jui, Hsieh Ying-Hui, Ma Chun-Hao, Jang Chi-Yuan, Lai Yu-Hong, Chiu Po-Wen, Wu Wen-Wei, Chen Yi-Chun, Zhou Yi-Chun, Chu Ying-Hao
Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education, Xiangtan University, Hunan 411105, China.
Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu 30010, Taiwan.
Sci Adv. 2017 Jun 9;3(6):e1700121. doi: 10.1126/sciadv.1700121. eCollection 2017 Jun.
We present a promising technology for nonvolatile flexible electronic devices: A direct fabrication of epitaxial lead zirconium titanate (PZT) on flexible mica substrate via van der Waals epitaxy. These single-crystalline flexible ferroelectric PZT films not only retain their performance, reliability, and thermal stability comparable to those on rigid counterparts in tests of nonvolatile memory elements but also exhibit remarkable mechanical properties with robust operation in bent states (bending radii down to 2.5 mm) and cycling tests (1000 times). This study marks the technological advancement toward realizing much-awaited flexible yet single-crystalline nonvolatile electronic devices for the design and development of flexible, lightweight, and next-generation smart devices with potential applications in electronics, robotics, automotive, health care, industrial, and military systems.
通过范德华外延在柔性云母衬底上直接制备外延锆钛酸铅（PZT）。这些单晶柔性铁电PZT薄膜不仅在非易失性存储元件测试中保持了与刚性衬底上的薄膜相当的性能、可靠性和热稳定性，而且在弯曲状态（弯曲半径低至2.5毫米）和循环测试（1000次）中表现出卓越的机械性能且运行稳定。这项研究标志着在实现期待已久的柔性且单晶的非易失性电子器件方面取得了技术进步，可用于设计和开发柔性、轻便的下一代智能设备，在电子、机器人、汽车、医疗保健、工业和军事系统等领域具有潜在应用。
