Influence of nanoscale morphology on performance of inverted structure metallated conjugated polymer solar cells

Lal Mohammad, Abu Mitul, Qi Wang, Swaminathan Venkatesan, Devendra Khatiwada, Ashish Dubey, Cheuk Lam Ho, Wai Yeung Wong, Qiquan Qiao

Research output: Contribution to journalArticlepeer-review

Abstract

Inverted polymer solar cells (iPSCs) have shown a great potential in organic photovoltaics due to its enhanced stability and large-scale roll-to-roll processing. Metallated conjugated polymers also show promise as a donor material in the PSCs. In this paper, the role of solvents on the performance of inverted structure metallated PSCs was understood. Chlorobenzene (CB) and toluene were used as solvents to obtain the optimum morphology for improved device efficiency. To understand the charge transport properties and charge carrier lifetime in metallated polymer iPSCs, atomic force microscopy and transient photocurrent measurements were performed. The results showed that the CB as a solvent can improve the morphology of the active layer and enhance the performance of metallated iPSCs.

Original languageEnglish (US)
Article number7173016
Pages (from-to)3029-3033
Number of pages5
JournalIEEE Transactions on Electron Devices
Volume62
Issue number9
DOIs
StatePublished - Sep 1 2015
Externally publishedYes

Keywords

  • Inverted structure
  • metallated conjugated polymers
  • nanoscale morphology
  • polymer solar cells (PSCs).

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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