Nature Communications (Jul 2020)

Proton-transfer-induced 3D/2D hybrid perovskites suppress ion migration and reduce luminance overshoot

  • Hobeom Kim,
  • Joo Sung Kim,
  • Jung-Min Heo,
  • Mingyuan Pei,
  • In-Hyeok Park,
  • Zhun Liu,
  • Hyung Joong Yun,
  • Min-Ho Park,
  • Su-Hun Jeong,
  • Young-Hoon Kim,
  • Jin-Woo Park,
  • Emad Oveisi,
  • Satyawan Nagane,
  • Aditya Sadhanala,
  • Lijun Zhang,
  • Jin Jung Kweon,
  • Sung Keun Lee,
  • Hoichang Yang,
  • Hyun Myung Jang,
  • Richard H. Friend,
  • Kian Ping Loh,
  • Mohammad Khaja Nazeeruddin,
  • Nam-Gyu Park,
  • Tae-Woo Lee

DOI
https://doi.org/10.1038/s41467-020-17072-0
Journal volume & issue
Vol. 11, no. 1
pp. 1 – 13

Abstract

Read online

Ion migration can induce overshoot of luminance in normal 3D perovskite light-emitting diode devices and results in reduced lifetime. Here Kim et al. show that the ion migration and overshoot can be suppressed in 3D/2D hybrid perovskites, leading to 21 times longer operational lifetime.