Polydiacetylene-Perylenediimide Supercapacitors
- Authors
- De Adhikari, Amrita; Morag, Ahiud; Seo, Joonsik; Kim, Jong-Man; Jelinek, Raz
- Issue Date
- Jun-2020
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- electrochemistry; organic; perylene diimide; polydiacetylene; supercapacitor
- Citation
- CHEMSUSCHEM, v.13, no.12, pp.3230 - 3236
- Indexed
- SCIE
SCOPUS
- Journal Title
- CHEMSUSCHEM
- Volume
- 13
- Number
- 12
- Start Page
- 3230
- End Page
- 3236
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/145644
- DOI
- 10.1002/cssc.202000440
- ISSN
- 1864-5631
- Abstract
- Organic supercapacitors have attracted interest as promising "green" and efficient components in energy storage applications. A polydiacetylene derivative coupled with reduced graphene oxide was employed, for the first time, to generate an organic pseudocapacitance-based supercapacitor that exhibited excellent electrochemical properties. Specifically, diacetylene monomers were functionalized with perylenediimide (PDI), spontaneously forming elongated microfibers. Following polymerization through UV irradiation, the PDI-polydiacetylene microfibers were interspersed with reduced graphene oxide (rGO), generating a porous electrode material exhibiting a high surface area and facilitating efficient ion diffusion, both essential preconditions for supercapacitor applications. We show that PDI-polydiacetylene has an important role in enhancing the electrochemical properties as a supercapacitor electrode. Besides stabilizing the microporous electrode organization, the delocalized pi electrons in both the PDI residues and conjugated network of the polydiacetylene contributed to a significantly higher capacitance (specific capacitance >600 F g(-1) at 1 A g(-1) current density), longer discharge time, and high power density. The PDI-polydiacetylene-rGO electrodes were employed in a functional supercapacitor device.
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