Efficient Generation of Long-Lived Triplet Excitons in 2D Hybrid Perovskite

Robert Younts; Hsin-Sheng Duan; Bhoj Gautam; Bayrammurad Saparov; Jie Liu; Cedric Mongin; Felix N Castellano; David B Mitzi; Kenan Gundogdu

doi:10.1002/adma.201604278

Efficient Generation of Long-Lived Triplet Excitons in 2D Hybrid Perovskite

Adv Mater. 2017 Mar;29(9). doi: 10.1002/adma.201604278. Epub 2016 Dec 23.

Authors

Robert Younts¹, Hsin-Sheng Duan², Bhoj Gautam¹, Bayrammurad Saparov², Jie Liu², Cedric Mongin³, Felix N Castellano³, David B Mitzi², Kenan Gundogdu¹

Affiliations

¹ Department of Physics, North Carolina State University, Raleigh, NC, 27695-8202, USA.
² Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC, 27708-0300, USA.
³ Department of Chemistry, North Carolina State University, Raleigh, NC, 27695-8204, USA.

PMID: 28009459
DOI: 10.1002/adma.201604278

Abstract

Triplet excitons form in quasi-2D hybrid inorganic-organic perovskites and diffuse over 100 nm before radiating with >11% photoluminescence quantum efficiency (PLQE) at low temperatures.

Keywords: exciton diffusion; exciton lifetime; hybrid inorganic-organic perovskites; quasi-2D materials; triplet sensitizer.