A Flexible Integrated System Containing a Microsupercapacitor, a Photodetector, and a Wireless Charging Coil

作者：Yue, Yang; Yang, Zhichun; Liu, Nishuang^*; Liu, Weijie; Zhang, Hui; Ma, Yanan; Yang, Congxing; Su, Jun; Li, Luying; Long, Fei; Zou, Zhengguang; Gao, Yihua^*

来源：ACS Nano, 2016, 10(12): 11249-11257.

DOI：10.1021/acsnano.6b06326

• ink printing flexible
• asymmetric microsupercapacitor
• integration
• perovskite nanowires

Nowadays, the integrated systems on a plane substrate containing energy harvesting, energy storing, and working units are strongly desired with the fast development of wearable and portable devices. Here, a simple, low cost, and scalable strategy involving ink printing and electrochemical deposition is proposed to fabricate a flexible integrated system on a plane substrate containing an all-solid-state asymmetric microsupercapacitor (MSC), a photoconduct-type photodetector of perovskite nanowires (NWs), and a wireless charging coil. In the asymmetric MSCs, MnO2-PPy and V2O5-PANI composites are used as positive and negative electrodes, respectively. Typical values of energy density in the range of 15-20 mWh cm(-3) at power densities of 0.3-2.5 W cm(-3) with an operation potential window of 1.6 V are achieved. In the system, the wireless charging coil receives energy from a wireless power transmitter, which then can be stored in the MSC to drive the photoconductive detector of perovskite NWs in sequence. The designed integrated system exhibits a stable photocurrent response comparable with the detector driven by an external power source. This research provides an important routine to fabricate integrated systems.

• 出版日期2016-12
• 单位桂林理工大学; 华中科技大学