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Kim, Jin Young
Next Generation Energy Laboratory
Research Interests
  • Polymer solar cells, QD solar cells, organic-inorganic hybrid solar cells, perovskite solar cells, OLEDs, PeLEDs, organic FETs

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Air-stable polymer electronic devices

Cited 230 times inthomson ciCited 213 times inthomson ci
Title
Air-stable polymer electronic devices
Author
Lee, KwangheeKim, Jin YoungPark, Sung HeumKim, Sun HeeCho, ShinukHeeger, Alan J.
Keywords
LIGHT-EMITTING DEVICES; DISPLAYS; CELLS
Issue Date
200709
Publisher
WILEY-V C H VERLAG GMBH
Citation
ADVANCED MATERIALS, v.19, no.18, pp.2445 - 2449
Abstract
An innovative approach that significantly extends the lifetime of polymer-based devices is presented. Devices with unique air stability and with enhanced performance have been shown by introducing a solution-based titanium oxide layer (TiOx) between the active layer and the aluminum cathode in polymer light-emitting diodes (PLED) and polyester solar cells (PSC). The TiOx layer acts as a shielding layer that prevents the intrusion of oxygen and humidity into the electronically active polymers, thereby improving the lifetime of unpackaged devices exposed to air by nearly two orders of magnitude. The degradation of polymer devices can eliminated or reduced by sealing the components inside an impermeable package using glass and/or metal. Attempts to create flexible packaging using hybrid multilayer barriers comprised of inorganic oxide layers separated by polymer layers with total thickness of 5-7μm also have been reported with promising results.
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DOI
http://dx.doi.org/10.1002/adma.200602653
ISSN
0935-9648
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