Improved efficiency of perovskite photovoltaics based on Ca-doped methylammonium lead halide

Ming Chung Wu*, Tzu Hao Lin, Shun Hsiang Chan, Wei Fang Su

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

22 Scopus citations


Hybrid lead halide perovskite structured materials have created enormous expectations for low-cost and high-performance optoelectronic devices. The light-harvesting active layer of perovskite solar cell consists of hybrid organic-inorganic lead halide-based material. In this study, we successfully fabricated the perovskite photovoltaics with partial substitution of the lead cation (Pb2+) with calcium ion (Ca2+). The incorporation of Ca2+ into the original structure was analyzed to observe the doping effect on the crystalline structure and the optical properties. Moreover, UV–vis spectra showed the decreased bandgap with ascending the dopants Ca2+ amount. 1.0 mol% Ca-doped perovskite film has the lower emission energy, and it shows the low recombination behavior. After optimizing the perovskite solar cells, the Voc is increased from 0.93 to 0.98 V, the Jsc is increased from 17.4 to 19.1 mA/cm2 and the power conversion efficiency is enhanced from 10.7 to 12.9% by using 1.0 mol% Ca-doped perovskite material.

Original languageEnglish
Pages (from-to)695-700
Number of pages6
JournalJournal of the Taiwan Institute of Chemical Engineers
StatePublished - 11 2017

Bibliographical note

Publisher Copyright:
© 2017 Taiwan Institute of Chemical Engineers


  • Calcium
  • Methylammonium lead halide
  • Morphology
  • Perovskite solar cell


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