White phosphorescent organic light emitting diodes (WOLEDs) offer many advantages for solid-state lighting applications, including high color-rendering indexes, tunable color temperatures, and color stability. In side-by-side geometry, emissive stripes of different colors can be driven separately to enable color tunability. Previous side-by-side OLEDs have been patterned using shadow masks or chemical lift-off methods. We utilize a photolithographic peel-off patterning method to fabricate side-by-side WOLEDs consisting of two isolated color stripes, one emitting in the yellow and the other in the blue. This method allows for high-resolution stripe patterning without sacrificing device performance and lifetime.
Semi-transparent organic photovoltaics (ST-OPVs) are considered as an attractive solution for power-generating windows. Typically, the module geometric fill factor (GFF) is limited by low-resolution patterning approaches. Here, we demonstrate a solvent-free polymer-based peel-off patterning method, which can achieve the resolution of photolithographic patterning of chemically sensitive organic materials. An ~13 cm² ST-OPV module fabricated using this method, achieves GFF > 95%, and a power conversion efficiency approaching 8% which shows less than 10% loss compared to a 4 mm² device. This method enables a viable path for achieving ST-OPVs at larger scales.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
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.