Effect of spraying parameters on the morphology of spraycoated active layers for organic solar cells

Nur Tahirah Razali, Khairunisa Kamarudin, Shusei Inaba, Mahshuri Yusof, Yeng Weng Leong, Varun Vohra

Research output: Contribution to journalArticle


Over the past decade, organic solar cells (OSCs) have demonstrated their great potential for the low-cost mass production of renewable energy. However, the conventional active layer deposition technique (spin-coating) is not suitable for mass production due to its incompatibility with the roll-to-roll process. Spray-coating is a promising candidate for in-line production of OSCs but parameters such as distance between the spray nozzle and substrate, applied pressure and number of sprays should be optimized to produce adequate film thickness and morphology. Here, we verified how these processing parameters influence the thin film properties and observed that film thickness increases with decreasing nozzle-substrate distance, increasing number of sprays or applied pressure. The processing parameters were adjusted to produce spray-coated films with similar properties to the spin-coated ones thus confirming that spray-coating could replace spin-coating for mass production of OSC devices.

Original languageEnglish
Pages (from-to)75-78
Number of pages4
JournalInternational Journal of Engineering and Technology(UAE)
Issue number3.18 Special Issue 18
Publication statusPublished - 01 Jan 2018

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Computer Science (miscellaneous)
  • Environmental Engineering
  • Chemical Engineering(all)
  • Engineering(all)
  • Hardware and Architecture

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