Performance of flexible polymeric light-emitting diodes under bending conditions

Paetzold, Ralph; Heuser, Karsten; Henseler, Debora; Roeger, Stephan; Wittmann, Georg; Winnacker, Albrecht
May 2003
Applied Physics Letters;5/12/2003, Vol. 82 Issue 19, p3342
Academic Journal
Organic light-emitting diodes were fabricated on a 125-μm-thick polyethylene terephthalate substrate covered with 100 nm indium tin oxide. The luminance-current-voltage performance and the emission spectrum of the devices are investigated in the bent state under mechanical stress at different bending radii. Down to a curvature of 15 mm, no significant decrease in the device performance is found compared to the relaxed state, as well as to conventional devices on glass substrates.


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