Journal Highlight: Wide‐range tuning and enhancement of organic long‐persistent luminescence using emitter dopants

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  • Published: Sep 10, 2018
  • Author: spectroscopyNOW
  • Channels: UV/Vis Spectroscopy
thumbnail image: Journal Highlight: Wide‐range tuning and enhancement of organic long‐persistent luminescence using emitter dopants

The characteristics of emissions from organic long‐persistent luminescent systems have been improved by the addition of doping emitter molecules, enabling the development of a wide range of organic glow‐in‐the‐dark paints.

Wide‐range tuning and enhancement of organic long‐persistent luminescence using emitter dopants

Advanced Materials, 2018, 1800365 online
Kazuya Jinnai, Ryota Kabe, Chihaya Adachi

Abstract: 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.

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