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全聚合物基有机光伏的高厚度耐受性使得高效和稳定的门内操作成为可能

Lei Zhang¹, Seonjeong Lee², Song Yi Park^1,3

¹Department of Physics and Centre for Processable Electronics, Imperial College London, Prince Consort Road, London, SW7 2AZ, UK.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)

|September 20, 2024

概括

全聚合物有机光伏 (OPV) 在室内应用的厚型设备中表现出色的性能和稳定性. 这种厚度耐受性最大限度地降低了重组损失,使得即使带有不平衡的电荷载体流动性,也可以有效地发电.

科学领域:

材料科学材料科学材料科学
可再生能源是可再生能源的来源.
有机电子有机电子

背景情况:

有机光伏 (OPV) 为低功耗室内电子提供可调节的光电子特性.
对于高光电流和可扩展制造而言,需要厚厚的活性层 (>300 nm),但通常会受到电荷重组的影响.

研究的目的:

为了证明全聚合物基光伏电池的厚度容忍,以实现高效和稳定的室内能源采集.
在室内照明下调查OPV在厚度上的性能变化背后的原因.

主要方法:

全聚合物有机光伏设备的制造和表征,具有不同的光活性层厚度.
在室内照明条件下的性能测试.
分析电荷重组和光稳定性的分析.
漂移扩散模拟以了解电荷载体动态.

主要成果:

全聚合物光伏设备在室内照明下表现出极好的厚度耐受性,在更厚的设备 (320-475 nm) 中表现最佳,达到34.7μW cm-2.
与薄型设备相比,厚型设备显著改善了光稳定性.
高厚度耐受性归因于压制的空间电荷效应和较厚的薄膜中减少的双分子重组.

结论:

全聚合物有机光伏产品在室内应用中表现出了显著的厚度耐受性,克服了典型的重组问题.
压抑的空间电荷效应,尽管电荷载体的移动性不平衡,对于厚型设备的稳定性和效率至关重要.
这些发现凸显了全聚合物光伏发电机在开发强大高效的室内能源采集解决方案方面的潜力.

关键词:

室内太阳能电池是什么意思有机太阳能电池是有机太阳能电池.聚合物/聚合物混合物空间电荷效应的影响厚度宽容度的宽容度是什么

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