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Light‐ and Touch‐Point Localization using Flexible Large Area Organic Photodiodes and Elastomer Waveguides
Author(s) -
Koeppe Robert,
Bartu Petr,
Bauer Siegfried,
Sariciftci N. Serdar
Publication year - 2009
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.200900557
Subject(s) - photodiode , materials science , optoelectronics , fabrication , homogeneous , point (geometry) , trace (psycholinguistics) , elastomer , simple (philosophy) , signal (programming language) , position (finance) , computer science , electrode , optics , physics , medicine , linguistics , philosophy , alternative medicine , geometry , mathematics , pathology , epistemology , finance , economics , composite material , thermodynamics , programming language , quantum mechanics
A homogeneous large area photodiode with high resistance electrodes can be used to trace the position of a localized light signal, thus allowing the easy fabrication of large area light‐ and touch‐point sensors. A readout scheme is presented that allows a direct and simple recalculation of the coordinates from four current signals picked up at the edges of the device.