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Breakthroughs in Undoped HfO2 Ferroelectric Capacitors Achieved through Enhanced Nanocrystallite Seeding in As-Deposited Films via O2-Plasma ALD

  • Zongwei Shang
  • , Changqing Ye
  • , Hao Li
  • , Xing Wu
  • , Runsheng Wang
  • , Ming Li*
  • , Ru Huang
  • *此作品的通讯作者
  • Peking University
  • East China Normal University

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

In this work, undoped HfO2 ferroelectric capacitors with excellent material properties are fabricated by O2plasma atomic layer deposition (ALD). Record high ferroelectric performance is demonstrated among all reported undoped HfO2 results, with high endurance (> 1011) and short switching time (< 2 ns). An average large single-crystal size (> 50 nm) and an orthorhombic phase ratio of over 40% are confirmed by transmission electron microscopy (TEM). Furthermore, the impacts of oxygen vacancy (VO) and H impurities concentration on the ferroelectric properties are elucidated.

源语言英语
主期刊名9th IEEE Electron Devices Technology and Manufacturing Conference
主期刊副标题Shaping the Future with Innovations in Devices and Manufacturing, EDTM 2025
出版商Institute of Electrical and Electronics Engineers Inc.
ISBN(电子版)9798331504168
DOI
出版状态已出版 - 2025
活动9th IEEE Electron Devices Technology and Manufacturing Conference, EDTM 2025 - Hong Kong, 香港
期限: 9 3月 202512 3月 2025

出版系列

姓名9th IEEE Electron Devices Technology and Manufacturing Conference: Shaping the Future with Innovations in Devices and Manufacturing, EDTM 2025

会议

会议9th IEEE Electron Devices Technology and Manufacturing Conference, EDTM 2025
国家/地区香港
Hong Kong
时期9/03/2512/03/25

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