在暴露于环境光线后, perfluorododecyl-iodide 自组装单层的降解
Lauren Colbeck Kirby1, Jayant K Lodha2, Simon Astley1
1Physics Department, Aberystwyth University, Aberystwyth SY23 3BZ, UK.
Nanomaterials (Basel, Switzerland)
|June 13, 2024
概括
perfluorododecyl iodide (I-PFC12) 显示出对无电阻极紫外线 (EUV) 刻画的潜力. 它在TiO2上的自组装单层在EUV下有效降解,使高级半导体制造的选择性区域沉积成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 表面化学 表面化学
背景情况:
- 传统的光刻法在实现高级半导体制造的关键尺寸方面面临着挑战.
- 区域选择性沉积 (ASD) 对于下一代模式技术至关重要.
- perfluorododecyl iodide (I-PFC12) 提供了诸如超低表面能量和带间隙修改等特性.
研究的目的:
- 调查I-PFC12作为EUV光刻材料的抗性材料的潜力.
- 在EUV暴露下,评估I-PFC12自组装单层 (SAM) 在不同基板上的稳定性和降解.
- 评估TiO2基质在I-PFC12.2降解中的光催化活性.
主要方法:
- I-PFC12 SAMs 在SiO2和TiO2基板上的蒸汽沉积.
- 对SAM暴露于环境光和模拟的EUV条件.
- 使用X射线光电子光谱 (XPS) 分析SAM稳定性和降解.
主要成果:
- 在曝光后,I-PFC12 SAMs在SiO2和TiO2基板上表现出差异性的降解.
- 一个月后,TiO2显示了I-PFC12的增强光催化降解,与SiO2的6.2%相比,有10.2%的损失.
- 在黑暗条件下,在两个基板上观察到最小的降解,突出显示光和光催化作用.
结论:
- I-PFC12 SAMs在黑暗条件下稳定,但在暴露于光线时,在像TiO2这样的光催化基板上有效降解.
- 观察到的降解模式表明I-PFC12是无电阻EUV光刻的合适候选者.
- TiO2的光催化活性增强了I-PFC12的降解,促进了微接触模式的选择性区域沉积.
相关概念视频
02:45Alkyl Halides
16.9K
Structural Properties
Alkyl halides are halogen-substituted alkanes wherein one or more hydrogen atoms of an alkane is replaced by a halogen atom such as fluorine, chlorine, bromine, or iodine. The carbon atom in an alkyl halide is bonded to the halogen atom, which is sp3-hybridized and exhibits a tetrahedral shape.
Unlike alkyl halides, compounds in which a halogen atom is bonded to an sp2 -hybridized carbon atom of a carbon-carbon double bond (C=C) are called vinyl halides. Whereas aryl...
Alkyl halides are halogen-substituted alkanes wherein one or more hydrogen atoms of an alkane is replaced by a halogen atom such as fluorine, chlorine, bromine, or iodine. The carbon atom in an alkyl halide is bonded to the halogen atom, which is sp3-hybridized and exhibits a tetrahedral shape.
Unlike alkyl halides, compounds in which a halogen atom is bonded to an sp2 -hybridized carbon atom of a carbon-carbon double bond (C=C) are called vinyl halides. Whereas aryl...
16.9K
01:13Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene
6.6K
Bromination and chlorination of aromatic rings by electrophilic aromatic substitution reactions are easily achieved, but fluorination and iodination are difficult to achieve. Fluorine is so reactive that its reaction with benzene is difficult to control, resulting in poor yields of monofluoroaromatic products. To address this, Selectfluor reagent is used as a fluorine source in which a fluorine atom is bonded to a positively charged nitrogen.
6.6K