Lee, Jin Ho Jeong, Yu Ra Lee, Geumbee Jin, Sang Woo Lee, Yong Hui Hong, Soo Yeong Park, Heun Kim, Jung Wook Lee, Sang-Soo Ha, Jeong Sook 2024-01-19T22:02:36Z 2024-01-19T22:02:36Z 2021-09-03 2018-08-22 1944-8244 https://pubs.kist.re.kr/handle/201004/121026 Here, we report on a highly conductive, stretchable, and transparent electrode of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) fabricated via modification with triblock copolymer, poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol) (PEO20-PPO70-PEO20, Pluronic P123), and post-treatment with sulfuric acid. The fabricated electrode exhibits high transparency (89%), high electrical conductivity (similar to 1700 S/cm), and minimal change in resistance (similar to 4%) under repetitive stretch-release cycles at 40% tensile strain after stabilization. P123 acts as a secondary dopant and plasticizer, resulting in enhanced electrical conductivity and stretchability of PEDOT:PSS. Furthermore, after sulfuric acid post-treatment, P123 helps the electrode to maintain its stretchability. A successful demonstration of the stretchable interconnection was shown by stretching the P123-modified PEDOT:PSS electrodes, which were connected with light-emitting diodes (LEDs) in series. Finally, a stretchable and transparent touch sensor consisting of our fabricated electrodes and an LED array and stretchable semitransparent supercapacitor were presented, suggesting a great potential of our electrodes in the application to various deformable devices. English American Chemical Society ORGANIC SOLAR-CELLS ORDERED MESOPOROUS CARBONS ELECTRICAL-CONDUCTIVITY PSS FILMS PEDOT/PSS MORPHOLOGY EFFICIENCY Highly Conductive, Stretchable, and Transparent PEDOT:PSS Electrodes Fabricated with Triblock Copolymer Additives and Acid Treatment Article 10.1021/acsami.8b07287 1 ACS Applied Materials & Interfaces, v.10, no.33, pp.28027 - 28035 ACS Applied Materials & Interfaces 10 33 28027 28035 scie scopus 000442706600052 2-s2.0-85050776705 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science Article ORGANIC SOLAR-CELLS ORDERED MESOPOROUS CARBONS ELECTRICAL-CONDUCTIVITY PSS FILMS PEDOT/PSS MORPHOLOGY EFFICIENCY stretchable transparent electrode PEDOT:PSS triblock copolymer sulfuric acid treatment stretchable electronics