Switchable transparency of dual-controlled smart glass prepared with hydrogel-containing graphene oxide for energy efficiency

Hung Tao Chou, Ying Chieh Chen, Chi Young Lee, Hwan You Chang, Nyan Hwa Tai*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

53 Scopus citations

Abstract

In this study, smart glass with the property of auto-adjust transparency was constructed to economize the consumption of energy by screening sunlight irradiation entering a building. Graphene oxide (GO), a photothermal conversion material, when intercalated within a thermotropic hydrogel can effectively convert the photoenergy of sunlight into thermal energy and cause the smart glass to reach an opaque state owing to the increased temperature of the hydrogel heated by solar light, as a result, reducing the incident intensity of solar energy and room temperature. In addition, GO embedded within the thermotropic hydrogel absorbs the colored organic solvent, which provides the smart glass with arbitrary color.

Original languageEnglish
Pages (from-to)45-51
Number of pages7
JournalSolar Energy Materials and Solar Cells
Volume166
DOIs
StatePublished - 01 07 2017
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2017 Elsevier B.V.

Keywords

  • Colored hydrogel
  • Graphene oxide
  • Green house
  • Photothermal effect
  • Smart glass
  • Thermal comfort

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