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首页> 外文期刊>ACS applied materials & interfaces >High-Performance Inverted Polymer Solar Cells with Zirconium Acetylacetonate Buffer Layers
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High-Performance Inverted Polymer Solar Cells with Zirconium Acetylacetonate Buffer Layers

机译:具有乙酰丙酮丙酮酸缓冲层的高性能倒置聚合物太阳能电池

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摘要

Inverted polymer solar cells incorporating solution-processed zirconium acetylacetonate (ZrAcac) buffer layers were demonstrated. The optimal device delivered a power conversion efficiency up to 9.2%, displaying similar to 20% improvement compared with the device of conventional configuration. The performance improvement by adopting ZrAcac as the cathode buffer layer is attributed to the enhanced light-harvesting, facilitated electron transport, and reduced bimolecular recombination loss. The morphology of ZrAcac buffer layer was found to be critical in achieving high performance, which was tunable through the selection of processing solvents. A flat and uniform ZrAcac film consisting of similar to 20 nm nanoscale aggregates deposited from a chloroform solution was proved to be highly effective, which only requires a short light-soaking time.
机译:对倒置的聚合物太阳能电池进行了介绍,该太阳能电池结合了溶液处理的乙酰丙酮锆(ZrAcac)缓冲层。最佳器件的功率转换效率高达9.2%,与传统配置的器件相比,显示出近20%的改进。通过采用ZrAcac作为阴极缓冲层而提高的性能归因于增强的光收集,便利的电子传输以及减少的双分子重组损失。发现ZrAcac缓冲层的形态对于实现高性能至关重要,这可以通过选择加工溶剂进行调节。事实证明,由从氯仿溶液沉积的类似于20 nm纳米级聚集体组成的平坦且均匀的ZrAcac膜非常有效,仅需很短的光浸泡时间即可。

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