Surface modification of Ni(OH) 2 nanosheets with PEDOT:PSS for supercapacitor and bendable electrochromic applications

Kuen Chan Lee, Cai Wan Chang-Jian, Er Chieh Cho, Jen Hsien Huang, Wei Ting Lin, Bo Cheng Ho, Jia An Chou, Yu Sheng Hsiao

Research output: Contribution to journalArticle

Abstract

Owing to the chemical resistance, facile production and high electrochemical activity, layered Ni(OH) 2 is a useful electrode material for supercapacitors and electrochromic (EC) devices. Nevertheless, the poor electrical conductivity of Ni(OH) 2 and its strong tendency to restack during processing have restricted its applications. In this study, we have modified Ni(OH) 2 surfaces with a layer of poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS) using (3-glycidyloxypropyl)trimethoxysilane (GOPS) as a linker. A nanospace can be created by the conductive layer of PEDOT:PSS wrapped on the Ni(OH) 2 nanosheet, which can avoid the reaggregation. Therefore, the Ni(OH) 2 /PEDOT (P–Ni(OH) 2 ) composites display greater electrochemical activity and kinetics due to the favorable conductivity and interfacial area, suitable for supercapacitor and EC applications. The flexible electrochromic device (ECD) and an asymmetric supercapacitor (AS) incorporating P–Ni(OH) 2 are also evaluated in this article. The P–Ni(OH) 2 based ECD exhibits superior mechanical stability and the AS also shows excellent cycling stability.

Original languageEnglish
Pages (from-to)1-11
Number of pages11
JournalSolar Energy Materials and Solar Cells
Volume195
DOIs
Publication statusPublished - Jun 15 2019

Fingerprint

Nanosheets
Electrochromic devices
Surface treatment
Chemical resistance
Mechanical stability
Electrodes
Kinetics
Supercapacitor
poly(3,4-ethylene dioxythiophene)
Composite materials
Processing

Keywords

  • Bendable
  • Electrochromic
  • Modification
  • Ni(OH)
  • PEDOT:PSS
  • Supercapacitor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Renewable Energy, Sustainability and the Environment
  • Surfaces, Coatings and Films

Cite this

Surface modification of Ni(OH) 2 nanosheets with PEDOT:PSS for supercapacitor and bendable electrochromic applications. / Lee, Kuen Chan; Chang-Jian, Cai Wan; Cho, Er Chieh; Huang, Jen Hsien; Lin, Wei Ting; Ho, Bo Cheng; Chou, Jia An; Hsiao, Yu Sheng.

In: Solar Energy Materials and Solar Cells, Vol. 195, 15.06.2019, p. 1-11.

Research output: Contribution to journalArticle

Lee, Kuen Chan ; Chang-Jian, Cai Wan ; Cho, Er Chieh ; Huang, Jen Hsien ; Lin, Wei Ting ; Ho, Bo Cheng ; Chou, Jia An ; Hsiao, Yu Sheng. / Surface modification of Ni(OH) 2 nanosheets with PEDOT:PSS for supercapacitor and bendable electrochromic applications. In: Solar Energy Materials and Solar Cells. 2019 ; Vol. 195. pp. 1-11.
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