Organometallic compound derivates as a novel efficient electron injection layer for hybrid light-emitting diodes

Year 2017, Volume: 9 Issue: 3, 155 - 161, 26.12.2017

Yasemin Torlak

https://doi.org/10.29137/umagd.347702

Abstract

In this
study we have presented the use of a organometallic compounds derivates (Keggin
type polyoxometalates) for the production of powerful electron injection layer
between the emissive polymer layer (PFO) and cathode layer (Al) . Electron transport studies
in organometallic compounds layers showed efficient
electron transport in very thin structures. High
efficiency solution-processed organic light emitting diodes (OLEDs) are
achieved by organometallic compounds 
such as Keggin type polyoxometalates used as electron injection or
transport layers with superb electron mobilities and hole blocking capacities.
These results indicate the potential for organometallic compounds derivates as
a variable, emerging new class of efficient electron injection/transport
molecular materials for high performance air-stable HyLEDs. The Keggin
type  polyoxometalates show unique
features such as superior ionization energy and 
low electron affinity which conversion them as efficient electron
injection/hole blocking layers and, immensely high electron mobility.

Keywords

Polyoxometalate, hybrid light-emitting diode

References

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