Light-emitting electrochemical cells based on hybrid lead halide perovskite nanoparticles

Meltem F. Aygüler, Michael D. Weber, Bianka M.D. Puscher, Dana D. Medina, Pablo Docampo*, Rubén D. Costa

*この研究の対応する著者

研究成果: Article査読

170 被引用数 (Scopus)

抄録

Methylammonium lead bromide (MAPbBr3) perovskite nanoparticles (NPs) have been recently proposed as a new material for light-emitting diodes, as well as a new paradigm to elucidate the operational mechanism in perovskite solar cells. Here, we have expanded the synthesis concept to fabricate NPs based on formamidinium lead bromide (FAPbBr3). Importantly, we have demonstrated that the photophysical features of this novel material can be easily tuned by exchanging the organic cation, achieving lower radiative bimolecular recombination rate for FAPbBr3 NPs. Additionally, we report for the first time light-emitting electrochemical cells (LECs) based on perovskite NPs by an easily up-scalable spray-coating technique. Stable luminance of 1-2 cd/m2 at low driving currents was achieved for both types of materials. Overall, this work opens a new avenue of research into the field of organic-inorganic metal halide nanoparticles bearing different alkyl ammonium groups and their application in the developing field of thin-film lighting devices.

本文言語English
ページ(範囲)12047-12054
ページ数8
ジャーナルJournal of Physical Chemistry C
119
21
DOI
出版ステータスPublished - 2015 5月 28
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • エネルギー(全般)
  • 物理化学および理論化学
  • 表面、皮膜および薄膜

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