This seminar introduces three recent progresses of self-powered flexible electronic systems beyond thermal limits. The first part will introduce self-powered systems for IoT sensors and flexible energy source. Flexible nanogenerator converts external bio-mechanical movement into electrical energy for self-powered IoT and biomedical devices such as pacemaker and transportation. In addition, flexible piezoelectric materials detects the minute vibration of membrane or human skin that expands the application of self-powered acoustic sensor and healthcare monitor. The second part will introduce laser material interaction for flexible applications. Laser technology of ultra-short pulse duration becomes important for future flexible electronics since high temperature process can be adopted on plastic substrates, which is essential for high performance electronics. Exciting results of flexible laser material interaction will be explored from both material and device perspectives including nanomaterial synthesis, inorganic laser liftoff and plasmonic material reaction.

The third part will discuss flexible large scale integration (f-LSI) for flexible CPU and high density memory. Flexible LSI is an essential part of future electronics for data processing, storage, and radio frequency (RF) communication. To fabricate f-LSI, we integrated 0.18 CMOS process of single crystal silicon nano-transistors with flexible electronics. Simultaneous roll transfer and interconnection of flexible NAND Flash memory was achieved using anisotropic conductive film (ACF). Finally, we introduce the highly efficient and long-term stable flexible vertical micro LED (f-VLED) for full color displays, wearable and biomedical applications. Using optogenetic mouse models, f-VLED stimulated motor neurons deep below layer III from the brain surface and induced mouse behavior changes. These f-VLED can be also used as tools of skin research and phototherapy.

报告人简历：

Keon Jae Lee is a professor in Dept. of MSE at KAIST and member of Korea Academy of Science and Technology. He received his Ph.D. in UIUC and coauthored over 100 SCI papers in journal including Science, Nature Materials, Nature Comm., Adv. Mater, Energy Environ. Sci. His current research interests are self-powered flexible electronic systems for bio, energy and electronics. He has filed ~150 patents and ~60 of these are licensed.
References of Keon’s corresponding authors since 2014

[1] Nature Comm. 7, 13562, 2016

[2] Adv. Mater. 29, 1702308, 2017 

[3] Adv. Mater. 30, 1800649, 2018
[4] Adv. Mater. 26, 4880, 2014 
[5] Adv. Mater, 26, 7480, 2014
[6] Adv. Mater. 27, 3982, 2015 
[7] Adv. Mater. 27, 2866, 2015
[8] Adv. Mater. 30, 1870094, 2018 
[9] Adv. Mater. 28, 8371, 2016 
[10] Adv. Mater, 26, 2514, 2014.
[11] Adv. Mater., 29, 1603473, 2017 
[12] Adv. Mater, 29, 1606586, 2017
[13] Adv. Mater, 27, 1701138, 2017
[14] Adv. Mater, 29, 1700595, 2017
[15] Nano Letters 14, 7031, 2014
[16] Energy Environ. Sci. 8, 2677, 2015
[17] Energy Environ. Sci., 7, 4035, 2014
[18] Adv. Energy Mater. 6, 1600237, 2016 
[19] Adv. Energy Mater. 5, 1500051, 2015
[20] ACS Nano 9, 4120, 2015 
[21] ACS Nano, 10, 3435, 2016
[22] ACS Nano 8, 9492, 2014 
[23] ACS Nano 8, 7671, 2014
[24] ACS Nano, 9, 6587, 2015 
[25] ACS Nano, 10, 10851, 2016
[26] ACS Nano, 10, 9478, 2016 
[27] ACS Nano, 12, 9587, 2018
[28] Adv. Func. Mater. 24, 6914, 2014 
[29] Adv. Func. Mater. 26, 6170, 2016
[30] Adv. Func. Mater. 27, 1700341, 2017 
[31] Adv. Func. Mater. 28, 1801690, 2018
[32] Adv. Func. Mater. 24, 2620, 2014
[33] Nano Energy, 35, 415, 2017 
[34] Nano Energy, 14, 111, 2015
[35] Nano Energy, 44, 447, 2018 
[36] Nano Energy 53, 198, 2018
[37] Nano Energy, 53, 658, 2018
[38] Adv. Sci., 1801146, 2018

活动报名链接：https://www.wjx.cn/jq/25704108.aspx