Progress in scalable coating and roll-to-roll compatible printing processes of perovskite solar cells toward realization of commercialization

Yen Sook Jung, Kyeongil Hwang, Youn Jung Heo, Jueng Eun Kim, Doojin Vak, Dong Yu Kim

Research output: Contribution to journalReview ArticleResearchpeer-review

20 Citations (Scopus)

Abstract

Organic–inorganic halide perovskite solar cells (PeSCs) have attracted worldwide attention due to their excellent photovoltaic properties, such as their proper bandgap, strong light absorption, long exciton diffusion length, and easy device fabrication with solution processes, suggesting a great potential for low-cost, high-performance solar cells. After a power conversion efficiency (PCE) of 3.8% achieved in 2009, numerous efforts have been made to create PeSCs with high PCEs over 20% in small-area cells. The next challenge is transition from the lab-scale spin coating to a large-scale coating/printing, which will preferably involve the cost-competitive roll-to-roll manufacturing and vacuum-free full-printing process. This review provides a progress report on studies related to the scalable deposition methods for PeSCs, such as slot-die coating, blade coating, spray coating, and various other methods, and to their processing strategies for morphology control in perovskite film formation and discusses the challenges and potential of commercialization of PeSCs in the future.

Original languageEnglish
Article number1701182
Number of pages30
JournalAdvanced Optical Materials
Volume6
Issue number9
DOIs
Publication statusPublished - 7 May 2018
Externally publishedYes

Keywords

  • perovskite solar cells
  • printed solar cells
  • roll-to-roll production
  • scalable deposition methods
  • solution process

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