TCO微结构对基于碳素的自组装单层电子性能的影响
Suzana Kralj1, Pia Dally2, Pantelis Bampoulis3
1MESA+ Institute for Nanotechnology, University of Twente, Enschede 7500 AE, The Netherlands.
概括
透明导电氧化物 (TCO) 微结构通过影响工作功能的统一性,显著影响矿太阳能电池的性能. 优化TCO颗粒结构对于高效的孔运输层和增强设备性能至关重要.
科学领域:
- 材料科学 材料科学 材料科学
- 固态物理 固态物理
- 太阳能光伏发电是如何实现的
背景情况:
- 基于碳醇的自组装单层 (PACz-SAM) 是矿/联太阳能电池中有效的孔选择性层.
- 透明导电氧化物 (TCO) 微结构对TCO/PACz-SAM堆性能的影响仍未得到充分研究.
研究的目的:
- 调查TCO微结构对工作功能 (WF) 和洞运输特性的影响.
- 在SAM定后,建立TCO晶粒方向和表面电位分布之间的相关性.
主要方法:
- 研究了添加的氧化物 (ITO) 基底,具有不同的微结构 (无形,多晶纳米/微粒).
- 分析了2PACz-SAM和NiO2/2PACz-SAM使用表面电位测量的定前后的工作功能转移.
- 与局部电位分布相关的ITO晶体粒度方向.
主要成果:
- TCO微观结构直接影响WF转移,并导致微/纳米级WF变化.
- 具有定义的粒度方向的多晶ITO在SAM定后显示出显著的WF变化.
- 无形氧化物 (ITO或NiO2缓冲层) 消除WF变异,从而产生均的表面潜力.
结论:
- TCO微观结构极大地影响了孔输送层的均性.
- 调整TCO微结构对于实现高流动性,宽带透明度和统一的WF分布至关重要.
- 这些因素对于优化矿太阳能电池性能至关重要.
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