超高电铁电动BaTiO矿在二维WSe2p型高性能晶体管的门堆中
Punyashloka Debashis1, Hojoon Ryu1, Rachel Steinhardt1
1Components Research, Intel Corporation, Hillsboro, Oregon 97124, United States.
Nano letters
|October 1, 2024
概括
研究人员开发了一种p型2D化 (WSe) 晶体管,使用酸 (BaTiO) 铁电门氧化物. 这一突破使高ON电流成为可能,并显示出低压铁电逻辑和扩展CMOS应用的前景.
科学领域:
- 材料科学 材料科学 材料科学
- 凝聚物质物理学 凝聚物质物理学
- 纳米技术纳米技术
背景情况:
- 二维 (2D) 材料为下一代设备提供独特的电子特性.
- 铁电材料提供可调节的门控制,但整合挑战仍然存在.
- 矿氧化物如BaTiO3具有强烈的铁电性和高介电常数.
研究的目的:
- 为了演示一个p型2D WSe2晶体管与铁电BaTiO3门氧化物.
- 为了研究混合WSe2/BaTiO3异构结构的性能.
- 评估规模化CMOS和铁电逻辑应用的潜力.
主要方法:
- 在WSe2上制造30纳米厚的BaTiO3门.
- 铁电歇斯底里的特征和BaTiO的介电性质3.
- 电气测量WSe2晶体管的性能,包括ON电流.
主要成果:
- 实现了强大的铁电歇斯底里,其余极化为20μC/cm2.
- 由于BaTiO3的高介电常数 (323) 获得了0.5nm的电容相当厚度.
- 演示了高的ON电流,是矿门2D晶体管中报告的最佳情况之一.
结论:
- 结晶BaTiO3与2D WSe2的集成是一个显著的进步.
- 展示的设备与平台兼容,并且可以进行可扩展的制造.
- 这项工作为低压铁电逻辑和先进的CMOS设备铺平了道路.
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