Electrowetting-induced morphological evolution of metal-organic inverse opals toward a water-lithography approach

Junchao Liu, Lun Wan, Manbo Zhang, Kejian Jiang, Kai Song, Jingxia Wang, Tomiki Ikeda, Lei Jiang

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32 Citations (Scopus)


This paper presents a unique morphological evolution of metal-organic inverse opals (Pb(NO3)2-poly(St-MMA-AA)) subjected to an electrowetting process. The morphology of the building blocks changes from interconnected pores to separated hollow spheres during the electrowetting process, accompanied by an unusual blue-shift of the stopband position and the decreased wettability of the film. This morphology evolution is attributed to the simultaneous collapse/reconstruction of the metal-organic frame owing to the partial dissolution of the metal salt and the interfacial assembly of the metal-organic coordination around the skeleton. The adjustable morphology can be developed as a novel and simple water-lithography approach for the creation of the photonic crystal pattern.

Original languageEnglish
Article number1605221
Number of pages8
JournalAdvanced Functional Materials
Issue number7
Publication statusPublished - 17 Feb 2017
Externally publishedYes


  • electrowetting
  • inverse opals
  • metal-organic polymers
  • morphological evolution
  • water lithography

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