Tin naphthalocyanine complexes for infrared absorption in organic photovoltaic cells

Richa Pandey, Ross A. Kerner, S. Matthew Menke, James Holst, Kanth V B Josyula, Russell J. Holmes

Research output: Contribution to journalArticlepeer-review

22 Scopus citations


In this work, we examine the optical properties of tin naphthalocyanine dichloride (SnNcCl2), and its performance as an electron donor material in organic photovoltaic cells (OPVs). As an active material, SnNcCl2 is attractive for its narrow energy gap which facilitates optical absorption past a wavelength of λ = 1100 nm. We demonstrate a power conversion efficiency of ηP = (1.2 ± 0.1)% under simulated AM1.5G solar illumination at 100 mW/cm2 using the electron donor-acceptor pairing of SnNcCl2 and C60 in a bilayer device architecture. While some phthalocyanines have been previously used to improve infrared absorption, this is often realized through the formation of molecular dimers. In SnNcCl2, the infrared absorption is intrinsic to the molecule, arising as a result of the extended conjugation. Consequently, it is expected that SnNcCl2 could be utilized in bulk heterojunction OPVs without sacrificing infrared absorption.

Original languageEnglish (US)
Pages (from-to)804-808
Number of pages5
JournalOrganic Electronics
Issue number3
StatePublished - Mar 2013

Bibliographical note

Funding Information:
This work was supported by the National Science Foundation MRSEC Program under Award Number DMR-0819885 and University of Minnesota Initiative for Renewable Energy and the Environment. R.P. also acknowledges support from a University of Minnesota Doctoral Dissertation Fellowship. R.A.K. acknowledges support from the University of Minnesota Undergraduate Research Opportunities Program. Authors also acknowledge support received from the University of Minnesota Industrial Partnership for Research in Interfacial and Materials Engineering.


  • Infrared Absorption
  • Naphthalocyanines
  • Organic Photovoltaic Cells
  • Phthalocynaines
  • Solar Cells


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