High-Efficiency Semitransparent Organic Solar Cells with Non-Fullerene Acceptor for Window Application,ACS Photonics

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High-Efficiency Semitransparent Organic Solar Cells with Non-Fullerene Acceptor for Window Application
ACS Photonics ( IF 6.5 ) Pub Date : 2017-09-06 00:00:00 , DOI: 10.1021/acsphotonics.7b00618
Mushfika Baishakhi Upama ₁ , Matthew Wright ₁ , Naveen Kumar Elumalai ₁ , Md Arafat Mahmud ₁ , Dian Wang ₁ , Cheng Xu ₁ , Ashraf Uddin ₁

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Organic solar cells possess multiple desirable traits, such as low cost, flexibility, and semitransparency, which opens up potential avenues unavailable to other solar technologies, a prime example of this being window applications. For this specific application, a delicate balance between the transmission of light through the device and power conversion efficiency (PCE), dependent on the amount of light absorbed, must be optimized. Here, we report a high-efficiency semitransparent device based on a novel fullerene-free material system. Using an active layer based on the material system PBDB-T:ITIC, optimized devices exhibited PCEs exceeding 7% while also achieving an average visible transmittance (AVT) of 25%. The concurrent demonstration of high efficiency with an AVT of 25% represents a notable step forward for semitransparent organic solar cells. Additionally, the influence of the active layer thickness on the color rendering properties of these cells was studied. Optimization of the active layer thickness can lead to high-efficiency cells, with high visible transmission as well as the ability to display an image accurately.

中文翻译：

带有非富勒烯受体的高效半透明有机太阳能电池，用于窗户应用

有机太阳能电池具有多种理想的特性，例如低成本，柔韧性和半透明性，这开辟了其他太阳能技术无法获得的潜在途径，其中最主要的例子就是窗户应用。对于此特定应用，必须优化通过设备的光传输与功率转换效率（PCE）之间的微妙平衡，具体取决于吸收的光量。在这里，我们报告了一种基于新型无富勒烯材料系统的高效半透明器件。使用基于材料系统PBDB-T：ITIC的有源层，优化的器件显示出超过7％的PCE，同时还实现了25％的平均可见光透射率（AVT）。同时显示AVT为25％的高效率代表了半透明有机太阳能电池的显着进步。另外，研究了活性层厚度对这些电池的显色性能的影响。活性层厚度的优化可以产生高效率的电池，具有高的可见光透射率以及准确显示图像的能力。

更新日期：2017-09-06

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