The behaviour of solution-processed green phosphorescent organic light emitting diodes with undesirable host composition

The behaviour of solution-processed green phosphorescent organic light emitting diodes with... We report an influence of abnormal mixing effect of host systems having undesirable energy level and transport level in the emission layer (EML). Rather, we focused on their device performance and stability (e.g. driving lifetime) when it was prepared by solution-process. The resultant green phosphorescent organic light emitting diodes (s-OLEDs) showed reasonable device performance and interesting photo-physical properties, which revealed that we can achieve good performance if an appropriate compromise between the factors which govern a charge transport and an energy transfer processes can be realized albeit the EML has undesirable host systems with both bad energy level matching (e.g., HOMO, LUMO levels) and charge transport properties. In this study, a high performance of the s-OLEDs by controlling photo-physical pathways such as exciton quenching process (e.g. triplet-triplet annihilation). Besides, such kind of change in photo-physical pathway may be optimized by controlling the charge balance (i.e. carrier transport behaviour) where we intentionally selected N- and P-type host materials (denote NH and PH, respectively) with abnormal HOMO and LUMO energy levels. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Organic Electronics Elsevier

The behaviour of solution-processed green phosphorescent organic light emitting diodes with undesirable host composition

Loading next page...
 
/lp/elsevier/the-behaviour-of-solution-processed-green-phosphorescent-organic-light-0hpzxXjhLO
Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier B.V.
ISSN
1566-1199
D.O.I.
10.1016/j.orgel.2017.12.013
Publisher site
See Article on Publisher Site

Abstract

We report an influence of abnormal mixing effect of host systems having undesirable energy level and transport level in the emission layer (EML). Rather, we focused on their device performance and stability (e.g. driving lifetime) when it was prepared by solution-process. The resultant green phosphorescent organic light emitting diodes (s-OLEDs) showed reasonable device performance and interesting photo-physical properties, which revealed that we can achieve good performance if an appropriate compromise between the factors which govern a charge transport and an energy transfer processes can be realized albeit the EML has undesirable host systems with both bad energy level matching (e.g., HOMO, LUMO levels) and charge transport properties. In this study, a high performance of the s-OLEDs by controlling photo-physical pathways such as exciton quenching process (e.g. triplet-triplet annihilation). Besides, such kind of change in photo-physical pathway may be optimized by controlling the charge balance (i.e. carrier transport behaviour) where we intentionally selected N- and P-type host materials (denote NH and PH, respectively) with abnormal HOMO and LUMO energy levels.

Journal

Organic ElectronicsElsevier

Published: Mar 1, 2018

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off