Upside-Down Molding Approach for Geometrical Parameter-Tunable Photonic Perovskite Nanostructures

Lebin Nie, Wai Kit Ng, Zhifu Liang, Xingang Ren, Tingbin Yang, Guanding Mei, Chi Wah Leung, Kam Sing Wong, Wallace C.H. Choy

Research output: Journal article publicationJournal articleAcademic researchpeer-review

2 Citations (Scopus)


Considering that the periodic photonic nanostructures are commonly realized by expensive nanofabrication processes and the tunability of structure parameters is limited and complicated, we demonstrate a solution-processed upside-down molding method to fabricate photonic resonators on perovskites with a pattern geometry controllable to a certain extent. This upside-down approach not only reveals the effect of capillary force during the imprinting but also can control the waveguide layer thickness due to the inversion of the perovskite membranes.

Original languageEnglish
Pages (from-to)27313-27322
Number of pages10
JournalACS Applied Materials and Interfaces
Issue number23
Publication statusPublished - 16 Jun 2021


  • capillary force
  • distributed feedback lasers
  • geometric parameter regulation
  • room-temperature nanoimprint
  • upside-down method

ASJC Scopus subject areas

  • General Materials Science


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