在合金有机-无机矿中均质化化物和离子分离
Juan-Pablo Correa-Baena1,2, Yanqi Luo3,4, Thomas M Brenner3,4
1Massachusetts Institute of Technology, Cambridge, MA 02139, USA. jpcorrea@gatech.edu buonassisi@mit.edu dfenning@eng.ucsd.edu.
Science (New York, N.Y.)
|February 9, 2019
概括
化物矿太阳能电池中的化物金属离子使化物分布均,提高性能. 然而,高度会导致有害的相分离和重组活性集群,影响器件的效率.
科学领域:
- 材料科学
- 可再生能源
- 固态化学
背景情况:
- 化太阳能电池中性金属的确切作用尚不清楚.
- 了解这些作用对于优化矿光伏性能至关重要.
研究的目的:
- 研究金属 (,,) 对化物分布和光伏性能的影响.
- 阐明金属对矿太阳能电池性能影响的机制.
主要方法:
- 基于同步子的纳米X射线光显微镜.
- 补充光谱和显微镜测量
- 矿太阳能电池设备的制造和特征.
主要成果:
- 添加酸,单独或与酸,使化物在各种组成中的分布均化.
- 同质化与较长的电荷载体寿命和空间均的载体动态相关.
- 和离子在较高度时倾向于形成相分离的集群.
- 在均质化化物分布下观察到光伏设备的性能改善.
结论:
- 金属在低度下有利于促进化物均化,提高太阳能电池的效率.
- 在较高度下,金属可以形成重组活性集群,对设备性能产生负面影响.
- 精确控制金属度对于最大限度地提高矿太阳能电池性能至关重要.
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