Efficient flexible inverted small-bandgap organic solar cells with low-temperature zinc oxide interlayer

DOI Web Site Web Site Web Site Web Site 参考文献24件

説明

<jats:title>Abstract</jats:title> <jats:p>In this work, we employ an aqueous solution-processed ZnO layer on indium tin oxide (ITO)-coated poly(ethylene terephthalate) (PET) as an electron-selective layer in a flexible inverted organic solar cell (OSC) based on poly({4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-<jats:italic>b</jats:italic>:4,5-<jats:italic>b</jats:italic>′]dithiophene-2,6-diyl}{3-fluoro-2-[(2-ethylhexy)carbonyl]thieno[3,4-<jats:italic>b</jats:italic>]thiophenediyl}):[6,6]-phenyl-C<jats:sub>71</jats:sub>-butyric acid methyl ester (PTB-7:PC<jats:sub>71</jats:sub>BM) blends. The electron-selective ZnO layer is prepared in a low-temperature process so that it can be compatible with a flexible substrate. An efficient flexible OSC with the configuration PET/ITO/ZnO/PTB7:PC<jats:sub>71</jats:sub>BM/MoO<jats:sub>3</jats:sub>/Ag with a power conversion efficiency (PCE) above 7.6% is obtained. The flexible device could maintain 85% of its initial PCE after 240 h when exposed under air ambient condition without any encapsulation and with a humidity of around 40%. This flexible device shows superior mechanical properties and could keep 93% of its original efficiency after 1000 bending cycles with a curvature radius of 0.8 cm. The results show that the ZnO layer deposited as the electron-selective layer through the aqueous solution is suitable for flexible OSCs.</jats:p>

収録刊行物

参考文献 (24)*注記

もっと見る

問題の指摘

ページトップへ