报告题目：Flexible Supercapacitor Designs for Wearable Electronic Devices
报告人：澳大利亚University of Wollongong陈俊博士
地点：浙江理工大学先进纺织材料与制备技术教育部重点实验室18号楼二楼会议室（218室）
时间：2016年9月28日（星期三）下午3:00-4:00
邀请人：陈建军
陈俊博士个人简历：
Associate Professor Jun Chen obtained his Bachelor Degree from Zhejiang University of Technology (1995), China. In 2003, Chen was awarded PhD degree from the School of Chemistry, University of Wollongong, Australia. Then, Chen did his post-doc at Intelligent Polymer Research Institute, ARC Centre of Excellence for Electromaterials Science, University of Wollongong. In 2008, Dr Chen was promoted to senior level and offered a tenured position by UOW as a senior research fellow. In January 2013, Dr Chen was promoted to Associate Professor (tenure position).
报告摘要：Although great attention has been paid to wearable electronic devices in recent years, flexible lightweight batteries or supercapacitors with high performance are still not readily available due to the limitations of the flexible electrode inventory. In this work, highly flexible, bendable and conductive rGO-PEDOT/PSS films were prepared using a simple bar-coating method. The all-solid-state device with sandwiched structure using rGO-PEDOT/PSS electrode could be bent and rolled up without any decrease in electrochemical performance. A relatively high areal capacitance of 448 mF cm−2 was achieved at a scan rate of 10 mV s−1 using the composite electrode with a high mass loading (8.49 mg cm−2), indicating the potential to be used in practical applications. To demonstrate this applicability, a roll-up supercapacitor device was constructed, which illustrated the operation of a green LED light for 20 seconds when fully charged. However, in order to meet the need of power demands of miniaturized wearable electronics (such as wireless sensor, self-powered microsystems and biomedical implants), micro-supercapacitors (MSCs) with planar interdigital micro-electrodes were further developed in this report. Conventional micro-fabrication techniques have proven to be costly and sophisticated in process, limiting their widespread application. Here we demonstrate a scalable fabrication of micro-supercapacitor by direct laser cutting on the optimized rGO-PEDOT/PSS films using a laser cutter system. Assembled all-solid-state flexible MSC single device on PET film can achieve an area capacitance as high as 40 mF cm-2 at 100 mV s-1. In addition, several devices can be readily patterned on one substrate to work collaboratively when connected in series or parallel to meet certain applications that require higher operating voltage or current. The excellent performance and the ease of fabrication suggest its potential for commercialization.
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