Optically-detected charge density dynamics in organic light emitting diodes (OLEDs)

Marc Sims; Ian D. Parker

doi:10.1117/12.829104

27 August 2009 Optically-detected charge density dynamics in organic light emitting diodes (OLEDs)

Marc Sims, Ian D. Parker

Proceedings Volume 7415, Organic Light Emitting Materials and Devices XIII; 74150D (2009) https://doi.org/10.1117/12.829104
Event: SPIE Photonic Devices + Applications, 2009, San Diego, California, United States

Abstract

Electro-modulation (EM) is used to measure interfacial hole densities in operating OLEDs. This in-situ optical probe has provided us with a measure of relative hole and electron currents in a wide range of OLED structures. Insight to the dynamics of interfacial hole densities allows an assessment of the longterm stability of electron-hole balance, and therefore helps greatly with the identification of electroluminescence (EL) degradation mechanisms. Here, we limit the investigation to NPB/AlQ3 OLEDs, but note that the technique is versatile, and can be readily adapted to a wide range OLED structures, especially those comprising arylamine -based hole transport materials and interlayers.

Citation Download Citation

Marc Sims and Ian D. Parker "Optically-detected charge density dynamics in organic light emitting diodes (OLEDs)", Proc. SPIE 7415, Organic Light Emitting Materials and Devices XIII, 74150D (27 August 2009); https://doi.org/10.1117/12.829104

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available