Semitransparent Flexible Organic Solar Cells Employing Doped-Graphene Layers as Anode and Cathode Electrodes,ACS Applied Materials & Interfaces

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Semitransparent Flexible Organic Solar Cells Employing Doped-Graphene Layers as Anode and Cathode Electrodes
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2018-01-16 00:00:00 , DOI: 10.1021/acsami.7b16730
Dong Hee Shin ₁ , Chan Wook Jang ₁ , Ha Seung Lee ₁ , Sang Woo Seo ₁ , Suk-Ho Choi ₁

Affiliation

Semitransparent flexible photovoltaic cells are advantageous for effective use of solar energy in many areas such as building-integrated solar-power generation and portable photovoltaic chargers. We report semitransparent and flexible organic solar cells (FOSCs) with high aperture, composed of doped graphene layers, ZnO, P3HT:PCBM, and PEDOT:PSS as anode/cathode transparent conductive electrodes (TCEs), electron transport layer, photoactive layer, and hole transport layer, respectively, fabricated based on simple solution processing. The FOSCs do not only harvest solar energy from ultraviolet–visible region but are also less sensitive to near-infrared photons, indicating semitransparency. For the anode/cathode TCEs, graphene is doped with bis(trifluoromethanesulfonyl)-amide or triethylene tetramine, respectively. Power conversion efficiency (PCE) of 3.12% is obtained from the fundamental FOSC structure, and the PCE is further enhanced to 4.23% by adding an Al reflective mirror on the top or bottom side of the FOSCs. The FOSCs also exhibit remarkable mechanical flexibilities through bending tests for various curvature radii.

中文翻译：

使用掺杂石墨烯层作为阳极和阴极电极的半透明柔性有机太阳能电池

半透明的柔性光伏电池在许多领域（例如建筑物集成的太阳能发电和便携式光伏充电器）中有效利用太阳能是有利的。我们报告了具有高孔径的半透明和柔性有机太阳能电池（FOSC），它由掺杂的石墨烯层，ZnO，P3HT：PCBM和PEDOT：PSS作为阳极/阴极透明导电电极（TCE），电子传输层，光敏层和空穴传输层分别基于简单的溶液处理工艺制造。FOSC不仅从紫外线可见区域收集太阳能，而且对近红外光子的敏感性较低，表明其为半透明的。对于阳极/阴极TCE，石墨烯分别掺杂有双（三氟甲磺酰基）-酰胺或三亚乙基四胺。通过基本的FOSC结构可获得3.12％的功率转换效率（PCE），通过在FOSC的顶部或底部增加Al反射镜，可以将PCE进一步提高到4.23％。FOSC还通过针对各种曲率半径的弯曲测试显示出显着的机械柔韧性。

更新日期：2018-01-16

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