Transient Metastable Behaviour in Highly Efficient MZO/CdSeTe/CdTe Thin Film Solar Cells
Transient Metastable Behaviour in Highly Efficient MZO/CdSeTe/CdTe Thin Film Solar Cells
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高效 MZO/CdSeTe/CdTe 薄膜太阳能电池的瞬态亚稳态行为
DOI：
10.1109/pvsc43889.2021.9518997
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
J. Bowers
中科院分区：
文献类型：
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作者：
M. Togay;R. Greenhalgh;T. Shimpi;S. Walajabad;K. Barth;J. Walls;J. Bowers
研究了高效MZO/CdSeTe/CdTe太阳电池的亚稳态效应。已经研究了用于恢复器械性能的不同预处理程序。预处理前的J-V特性表现出“S”形行为，在预处理过程中被去除。然而，这种恢复仅保持了3天，而装置在真空下在黑暗中保持。温度依赖性的J-V和电容测量之前和之后的预处理揭示了存在的复合中心和缺陷水平的MZO/吸收剂界面。先前的研究表明，如果该层暴露于大气中，MZO会发生降解。MZO薄膜的霍尔效应测量结果表明，任何预处理或氯化镉处理后没有显着的变化。
Metastability effects have been investigated in high efficiency MZO/CdSeTe/CdTe solar cells. Different preconditioning procedures have been studied that are used to recover the performance of the devices. J-V characteristics before preconditioning have shown an `S` shaped behaviour which is removed during preconditioning. However, this recovery remained only for 3 days while the devices were maintained under vacuum in the dark. Temperature dependent J-V and capacitance measurements before and after preconditioning revealed the presence of recombination centres and defect levels at the MZO/absorber interface. Previous studies have shown degradation of MZO occurring if the layer is exposed to the atmosphere. Hall effect measurements on the MZO films showed no significant changes after any preconditioning or CdCl2 treatment.