摘要
The ever-increasing demand for smart optoelectronics spurs the relentless pursuit of transparent wireless devices as a game-changing technology that can provide unseen visual information behind the electronics.To enable successful operation of the transparent wireless devices,their power sources should be highly transparent in addition to acquiring reliable electrochemical performance.Among various transparent power sources,supercapacitors(SCs)have been extensively investigated as a promising candidate due to their exceptional cyclability,power capability,material diversity,and scalable/low-cost processability.Herein,we describe current status and challenges of transparent SCs,with a focus on their core materials,performance advancements,and integration with application devices.A special attention is devoted to transparent conductive electrodes(TCEs)which act as a keyenabling component in the transparent SCs.Based on fundamental understanding of optical theories and operating principles of transparent materials,we comprehensively discuss materials chemistry,structural design,and fabrication techniques of TCEs.In addition,noteworthy progresses of transparent SCs are briefly overviewed in terms of their architectural design,opto-electrochemical performance,flexibility,form factors,and integration compatibility with transparent flexible/wearable devices of interest.Finally,development direction and outlook of transparent SCs are explored along with their viable roles in future application fields.
基金
supported by the Basic Science Research Program(2018R1A2A1A05019733)
Wearable Platform Materials Technology Center(2016R1A5A1009926)through the National Research Foundation of Korea(NRF)grant by the Korean Government(MSIT)
Industry Technology Development Program(10080540)funded by the Ministry of Trade,Industry&Energy(MOTIE,Korea)
作者简介
Sang-Woo Kim received his B.S.in Fine Chemical Engineering and Applied Chemistry from Chungnam National University in 2018.He is currently M.S.-Ph.D.integrated course student under the supervision of Prof.Sang-Young Lee.His research interests include the design of multifunctional transparent supercapacitors;Sang-Young Lee is a professor and a head of School of Energy and Chemical Engineering at UNIST,Korea.He received BA in Chemical Engineering from Seoul National University in 1991,MS,and PhD in Chemical Engineering from KAIST in 1993 and 1997.He served as a postdoctoral fellow at Max-Planck Institute for Polymer Research from 2001 to 2002.Before joining UNIST,he worked at Batteries R&D,LG Chem as a principal research scientist.His research interests include printed power sources,flexible/wearable batteries,cellulosebased paper batteries,advanced separator membranes and polymer electrolytes.E-mail:syleek@unist.ac.kr
