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首页> 外文期刊>Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion >Enhanced photocurrent and stability of inverted polymer/ZnO-nanorod solar cells by 3-hydroxyflavone additive
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Enhanced photocurrent and stability of inverted polymer/ZnO-nanorod solar cells by 3-hydroxyflavone additive

机译：3-羟基黄酮助剂提高聚合物/ ZnO-倒纳米聚合物太阳能电池的光电流和稳定性

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摘要

Both the performance and stability are the two major tasks for scientists to tackle in polymer solar cells. We introduce 3-hydroxyflavone (3-HF), a free-radical scavenging agent, as an additive in poly(3-hexythiophene):(6,6)- phenyl C _(61) butyric acid methyl ester (P3HT:PCBM) blend forming new photoactive material, which is used as an active layer in inverted solar cell devices. It was found that the addition of an adequate amount of 3-HF enhances the photocurrent, which is due to the improved carrier mobility. A power conversion efficiency (PCE) of the device has improved from 2.57% to 3.05%. In addition, 3-HF can further stabilize the inverted solar cell performance with a 85% retaining of its original PCE over a month in ambient condition as compared to the additive-free device of a value of 57%. Thus, incorporating 3-HF as an additive is an effective and simple method to approach the goal of high PCE while maintaining stable ambient operation.
机译：性能和稳定性都是科学家在聚合物太阳能电池中要解决的两个主要任务。我们引入自由基清除剂3-羟基黄酮（3-HF）作为聚（3-己噻吩）:( 6,6）-苯基C _（61）丁酸甲酯（P3HT：PCBM）的添加剂共混形成新的光敏材料，该材料用作倒置太阳能电池器件中的活性层。已经发现，由于载流子迁移率的提高，添加适量的3-HF会增强光电流。器件的功率转换效率（PCE）从2.57％提高到3.05％。此外，与无添加剂的装置（值为57％）相比，3-HF可以在一个月内保持其原始PCE的85％，从而进一步稳定了反向太阳能电池的性能。因此，掺入3-HF作为添加剂是一种有效且简单的方法，可在保持稳定的环境操作的同时，实现高PCE的目标。

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