Wide‐Range Tuning and Enhancement of Organic Long‐Persistent Luminescence Using Emitter Dopants

Most long‐persistent luminescent (LPL) materials, which slowly release energy absorbed from ambient light, are based on inorganic compounds. Organic long‐persistent luminescent (OLPL) systems have advantages over inorganic LPL materials in terms of solubility, transparency, and flexibility. Here, th...

Full description

Saved in:
Bibliographic Details
Published in:Advanced materials (Weinheim) 2018-09, Vol.30 (38), p.e1800365-n/a
Main Authors: Jinnai, Kazuya, Kabe, Ryota, Adachi, Chihaya
Format: Article
Language:English
Subjects:
charge recombination
charge separation
Dopants
Emission
Emitters
Emitters (electron)
energy transfer
Inorganic compounds
Materials science
organic long‐persistent luminescence
organic semiconductors
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Most long‐persistent luminescent (LPL) materials, which slowly release energy absorbed from ambient light, are based on inorganic compounds. Organic long‐persistent luminescent (OLPL) systems have advantages over inorganic LPL materials in terms of solubility, transparency, and flexibility. Here, the characteristics of OLPL emission are improved by doping emitter molecules into an OLPL matrix. Greenish‐blue to red and even warm white emission are achieved by energy transfer from exciplex in the OLPL matrix to the emitter dopants. The dopants also improve brightness and emission duration through efficient radiative decay and the trapping of electrons, respectively. This technique will enable the development of a wide range of organic glow‐in‐the‐dark paints. The color is broadly tuned and the duration of emission is improved by doping emitter molecules into an organic long‐persistent luminescence matrix. Red to greenish blue and even warm white emission are achieved by energy transfer from exciplexes in the organic matrix to the emitter dopants.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201800365