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对半导体金属氧化物-聚合物混合物电荷传输的影响
Wei Huang1,2, Peijun Guo3, Li Zeng4
1Department of Chemistry and the Materials Research Center , Northwestern University , 2145 Sheridan Road , Evanston , Illinois 60208 , United States.
Journal of the American Chemical Society
|April 5, 2018
概括
聚乙胺 (PEI) 剂增强无形金属氧化物半导体,改善电荷传输和薄膜微观结构. 最佳的兴奋剂水平取决于金属成分和最高性能的比率.
科学领域:
- 材料科学
- 固态物理
- 半导体设备
背景情况:
- 无形金属氧化物 (MO) 半导体对于先进的电子设备至关重要.
- 聚乙烯胺 (PEI) 已经显示出作为MO电子剂的潜力.
- 了解对微观结构和电荷传输的影响是设备优化的关键.
研究的目的:
- 研究聚乙胺 (PEI) 在各种无形金属氧化物 (MO) 半导体系统中的普遍性.
- 分析PEI兴奋剂对薄膜微观结构和电荷传输特性的影响.
- 确定MO组成,兴奋剂度和装置性能之间的关系.
主要方法:
- 使用PEI合的MO混合物 (In2O3,IZO,IGO,IGZO) 制造和表征薄膜晶体管 (TFT).
- 使用原子力显微镜 (AFM),X射线光电子光谱 (XPS),X射线衍射 (XRD),X射线反射率和传输电子显微镜 (TEM) 分析膜微结构.
- 使用TFT测量和紫外光电子光谱 (UPS) 检测电子特性和能量水平.
主要成果:
- 在二元,三元和四元MO系统中,PEI兴奋剂是有效的,证明了广泛的适用性.
- 最佳的PEI度导致载体流动性达到峰值,并提高了TFT的性能.
- 薄膜微观结构随着MO组成而演变,影响了电荷传输.
- PEI电子捐赠效率与MO矩阵的工作功能和形态相关.
结论:
- PEI是无形MO半导体的多功能电子剂.
- 膜微观结构,形态和能量水平的修改对于理解这些材料中的电荷传输至关重要.
- 该研究强调了基于MO组成和金属比率优化PEI负载的重要性,以提高电子性能.
相关概念视频
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