Highly efficient Cs-based perovskite light-emitting diodes enabled by energy funnelling

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Authors

Yan Fong Ng · Nanyang Technological University

Sneha A. Kulkarni · Energy Research Institute

Shayani Parida · Indian Institute of Science Bangalore

Nur Fadilah Jamaludin · Nanyang Technological University

Natalia Yantara · Energy Research Institute

Annalisa Bruno · Energy Research Institute

Cesare Soci

Abstract

The incorporation of phenylethylammonium bromide (PEABr) into a fully inorganic CsPbBr3 perovskite framework led to the formation of mixed-dimensional perovskites, which enhanced the photoluminescence due to efficient energy funnelling and morphological improvements. With a PEABr : CsPbBr3 ratio of 0.8 : 1, PeLEDs with a current efficiency of 6.16 cd A-1 and an EQE value of 1.97% have been achieved.

Topics & Keywords

Perovskite Materials and Applications Organic Light-Emitting Diodes Research 2D Materials and Applications

UN Sustainable Development Goals

Affordable and clean energy

Publication Details

Published in: Chemical Communications

Volume 53, Issue 88, pp. 12004-12007

DOI: 10.1039/c7cc06615e

Field-Weighted Citation Impact: 7.72