Mesoscopic CH3NH3PbI3 perovskite solar cells using TiO2 inverse opal electron-conducting scaffolds

Su Jin Ha, Jin Hyuck Heo, Sang Hyuk Im, Jun Hyuk Moon

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)


One of the current needs of applications involving perovskite solar cells is reducing the hysteresis of the current density-voltage response with respect to the scan direction and rate. This reduction enables high and stable power conversion efficiency (η). For this purpose, a mesoscopic electron conductor with low trap density and high electron conductivity that balances charge flux is highly desirable. In the present study, we prepared a mesoscopic inverse opal (meso-IO) film with a three-dimensionally interconnected porous structure and used it as an electron-conducting scaffold for perovskite solar cells. We controlled the thickness of the meso-IO scaffold and determined its effect on the cells' photovoltaic performance. Solar cells using the 600 nm thick meso-IO scaffold exhibited a maximum η of 17.1%, no hysteresis of photocurrent density between forward and reverse scan directions, as well as hysteresis of η of only 0.5% p.

Original languageEnglish
Pages (from-to)1972-1977
Number of pages6
JournalJournal of Materials Chemistry A
Issue number5
Publication statusPublished - 2017
Externally publishedYes

Bibliographical note

Publisher Copyright:
© The Royal Society of Chemistry.

ASJC Scopus subject areas

  • General Chemistry
  • Renewable Energy, Sustainability and the Environment
  • General Materials Science


Dive into the research topics of 'Mesoscopic CH3NH3PbI3 perovskite solar cells using TiO2 inverse opal electron-conducting scaffolds'. Together they form a unique fingerprint.

Cite this