题目：

Freestanding Transparent Metallic Network basedUltrathin, Foldable and Designable Supercapacitors

作者：

Yan-Hua Liu,^a Jian-Long Xu,^*b Xu Gao,^b Yi-Lin Sun,^c Jing-Jing Lv,^b Su Shen,^aLin-Sen Chen^*a and Sui-Dong Wang^*b

单位：

^aCollege of Physics, Optoelectronics and Energy, Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies ofEducation Ministry of China, Soochow University, Suzhou, Jiangsu 215006, P. R. China.

^bInstitute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory forCarbon-Based Functional Materials & Devices, Soochow University, Suzhou, Jiangsu 215123, P. R. China.

^cInstitute of Microelectronics, Tsinghua National Laboratory for Information Science and Technology(TNList), Tsinghua University, Beijing 100084, P. R. China

摘要：

Fully integrated ultrathin, transparent and foldable energy storage devices are essential for the developmentof smart wearable electronics, yet typical supercapacitor electrodes are substrate-supported which limits theirthickness, transparency and mechanical properties. Employing freestanding transparent electrodes with nosubstrate support could bring ultrathin, foldable and designable supercapacitors closer to reality. Herein, wereport a freestanding, ultrathin (<5 μm), highly conductive (3×10⁴ S cm^-1), highly transparent (>84% transmittance) and foldable metallic network electrode, loaded with MnO₂ by electrochemical deposition, as a supercapacitor electrode. The freestanding metallic network electrode is fabricated via a simple and lowcost laser direct-writing micro-patterning technique followed by a selective electrodeposition process, wherethe metallic network patterns, network periods, metal thickness and also the electrode film patterns can bedesigned for different applications. The obtained freestanding MnO₂@Ni network electrode delivers anoutstanding areal capacitance of 80.7 mF cm^-2 and long-term performance stability (96.3% after 10000cycles). Moreover, the symmetric solid-state supercapacitors employing the freestanding MnO₂@Ni network electrode not only show high areal capacitance as well as high optical transparency (>80% transmittance), but also can be tailored, attached, folded, rolled up, and crumpled into any object or various shapes with onlyslight performance degradation. The advent of such freestanding transparent metallic network electrodes may open up a new avenue for realizing fully integrated ultrathin, foldable and designable supercapacitors towards self-powered wearable electronics.

影响因子：

29.518

分区情况：

一区

链接：

http://pubs.rsc.org/-/content/articlehtml/2017/ee/c7ee02390a

责任编辑：向丹婷