All ink-jet printed polyfluorene photosensor for high illuminance detection

• Organic Electronics

An all-printed photosensor based on polyfluorene derivatives has been developed for high illuminance range detection (>100 klux). The active layer is a blend of hole-accepting poly(9,90-dioctylfluorene-co-bis-N,N0-(4-butylphenyl)-bis-N,N0-phenyl-1,4-phenylenediamine) (PFB) and electron-accepting poly(9,90-dioctylfluorene-co-benzothiadiazole) (F8BT). A top-absorbing architecture was used with poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT:PSS) as the transparent electrode. The surface energy of the PEDOT:PSS ink was modified in order to allow printing directly onto the hydrophobic surface of the PFB:F8BT blend layer, placing the transparent electrode at the top of the light sensor structure. The all-printed photosensor shows a linear response over multiple measurements within the illuminance range of (100–400) klux.

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citation

Lavery, L. L.; Whiting, G. L.; Arias, A. C. All ink-jet printed polyfluorene photosensor for high illuminance detection. Organic Electronics. 2011 April; 12 (4): 682-685.

copyright

Copyright © Elsevier, 2011. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the publisher. The following article appeared in Organic Electronics and may be found at http://dx.doi.org/10.1016/j.orgel.2011.01.023.