A sequential condensation route as a versatile platform for low cost and efficient hole transport materials in perovskite solar cells


Pashaei B., Shahroosvand H., Ameri M. , Mohajerani E., Nazeeruddin M. K.

JOURNAL OF MATERIALS CHEMISTRY A, vol.7, no.38, pp.21867-21873, 2019 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 7 Issue: 38
  • Publication Date: 2019
  • Doi Number: 10.1039/c9ta05121j
  • Title of Journal : JOURNAL OF MATERIALS CHEMISTRY A
  • Page Numbers: pp.21867-21873

Abstract

In an effort to diminish the cost of perovskite solar cells (PSCs) with regard to hole transport materials (HTMs), we employed an easily attainable condensation route to synthesize a cheap and efficient HTM. Using a newly engineered small organic molecule, N,N '-(naphthalene-1,5-diyl)bis(1-(2,3-diphenylquinoxalin-6-yl)-1-phenylmethanimine), coded as BEDN, the power conversion efficiency (PCE) reached 17.85%, comparable to that of the state-of-the-art HTM spiro-OMeTAD (19.50%). The BEDN's estimated cost is 1.38 ($ per g), which is considerably cheaper than spiro-OMeTAD, 92 ($ per g). The low cost and high efficiency are promising in commercialization of perovskite solar cells.