Hole-conductor free ambient processed mixed halide perovskite solar cells

Suresh Maniarasu, Manoj Kumar Rajbhar, Reshma K. Dileep, Easwaramoorthi Ramasamy, Ganapathy Veerappan*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations


In the past several years, organic-inorganic halide based perovskites has become an exciting topic in the field of photovoltaic community. Conventional perovskite solar cells (PSC) use 2,2′,7,7′-Tetrakis[N,N-di(4-methoxyphenyl)amino]-9,9′-spirobifluorene (spiro-OMeTAD) as a hole transporting layer (HTL), but the cost and stability of the polymeric HTL affects the scaling-up of PSC. This work, reports a hole- conductor free-ambient processed mixed halide PSCs with promising efficiency by tuning the morphology of the perovskite films by employing different deposition techniques (one step, two-step and dip coating method). In the dip coating method, unique cuboid structured films with good absorption and pin hole free films were obtained. The photovoltaic performances of the devices made by various deposition methods were measured at 1 sun illumination under standard conditions and achieved upto 6.5%.

Original languageEnglish (US)
Pages (from-to)226-229
Number of pages4
JournalMaterials Letters
StatePublished - Jun 15 2019


  • Ambient processed
  • Hole conductor free solar cells
  • Mixed halide perovskite
  • Perovskite solar cells

ASJC Scopus subject areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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