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相关概念视频

MOS Capacitor01:25

MOS Capacitor

A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...

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固态储存在原子层中沉积的α-MoO3薄膜

David Maria Tobaldi1, Salvatore Mirabella2, Gianluca Balestra1,3

  • 1CNR Nanotec, Institute of Nanotechnology, University Campus Ecotekne, Via per Monteroni, 73100 Lecce, Italy.

Energy & fuels : an American Chemical Society journal
|June 18, 2025
PubMed
概括

需要新的固态存材料. 阿尔法-三氧化物 (α-MoO3) 薄膜可逆地使用室温等离子体储存,为压缩气体或液态储存提供了一个有希望的替代方案.

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科学领域:

  • 材料科学 材料科学 材料科学
  • 化学工程是化学工程的重要组成部分.
  • 储能 储能 储能 储能 储能 储能

背景情况:

  • 是一种关键的能源载体,但传统的储存 (压缩气体,液体) 面临着高压和冷温度等局限性.
  • 开发先进的固态存材料对于广泛采用可再生能源至关重要.

研究的目的:

  • 研究α-三氧化物 (α-MoO3) 薄膜对于可逆固态储存的潜力.
  • 探索一种新的低压室温化方法,用于α-MoO3.

主要方法:

  • 用原子层沉积来培养α-MoO3的薄膜.
  • 使用室温和200mTorr.的等离子体实现了化.
  • 密度函数理论 (DFT) 的计算被用来理解插入机制.
  • 评估了可逆性和储存能力,包括氧化封盖层的影响.

主要成果:

  • α-MoO3薄膜在室温和低压下证明了可逆的储存.
  • DFT的计算表明,在范德瓦尔斯隙中,原子与氧原子的优先结合.
  • 在气下在350°C下有效地脱,可重复循环.
  • 一个13纳米的AlxOy封闭层成功地阻止了的释放.
  • 实现了28kg·m-3.3的体积储容量.

结论:

  • α-MoO3薄膜是固态存的有希望的材料.
  • 开发的方法为传统储存提供了低压,室温的替代方案.
  • 该材料的可逆储能能力和稳定性表明,在能源储能系统中可能有实际应用.