Recent results on enhanced light outcoupling from OLEDs on corrugated plastic substrates

Joseph Shinar; Rajiv Kaudal; Erik Dykstra; Michael Fralaide; Yu Zhang; Rana Biswas; W Dennis Slafer; Ruth Shinar

doi:10.1117/12.2568176

20 August 2020 Recent results on enhanced light outcoupling from OLEDs on corrugated plastic substrates

Joseph Shinar, Rajiv Kaudal, Erik Dykstra, Michael Fralaide, Yu Zhang, Rana Biswas, W Dennis Slafer, Ruth Shinar

Proceedings Volume 11473, Organic and Hybrid Light Emitting Materials and Devices XXIV; 114730B (2020) https://doi.org/10.1117/12.2568176
Event: SPIE Organic Photonics + Electronics, 2020, Online Only

Abstract

We report strongly enhanced light outcoupling from phosphorescent OLEDs (PhOLEDs) fabricated on patterned polycarbonate (PC) and polyethylene terephthalate (PET) substrates. The patterns range from shallow (height h<200 nm) to deep (h~500 nm) convex PC patterns with period a ~750 vs ~400 nm, and concave PET/CAB (cellulose acetate butyrate) patterns with large m-size periods – a new promising approach. Bottom-emitting PhOLEDs on such substrates enhance the external quantum efficiency EQE ~2.4x to 2.8x vs devices on glass/ITO; the EQE of green and blue patterned PC/PEDOT:PSS OLEDs reached 56.5% and ~43%, respectively. The corrugated substrates (refractive index ~1.6) are fabricated by direct molding, amenable to R2R transfer, at room temperature. Surprisingly, OLEDs on substrates with narrower a and relatively low h show significant outcoupling enhancement despite h reduction across the OLED stack. OLEDS on substrates with a2 m (and large a/h) showed significant enhancement with fully

Conference Presentation

Citation Download Citation

Joseph Shinar, Rajiv Kaudal, Erik Dykstra, Michael Fralaide, Yu Zhang, Rana Biswas, W Dennis Slafer, and Ruth Shinar "Recent results on enhanced light outcoupling from OLEDs on corrugated plastic substrates", Proc. SPIE 11473, Organic and Hybrid Light Emitting Materials and Devices XXIV, 114730B (20 August 2020); https://doi.org/10.1117/12.2568176

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