Pure Formamidinium-Based Perovskite Light-Emitting Diodes with High Efficiency and Low Driving Voltage

Lei Meng, En Ping Yao, Ziruo Hong, Huajun Chen, Pengyu Sun, Zhanlue Yang, Gang Li, Yang Yang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

146 Citations (Scopus)


Researchers focus on a green light-emitting diode (LED) using formamidinium (FA)-based perovskite emitter. Using a two-step sequential solution processed deposition method they fabricate high-quality FA-perovskite films that are highly dense and uniform. FABr is spin-deposited on top of predeposited PbBr2layer in this two-step approach. Thermal annealing of the solid-state films leads to a phase transition process in which both the nucleation and growth of perovskite crystals are completed.
Original languageEnglish
Article number1603826
JournalAdvanced Materials
Issue number4
Publication statusPublished - 1 Jan 2017


  • formamidinium
  • light-emitting diodes
  • perovskites
  • sub-bandgap emissions

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this