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Integrated waveguide sensor utilizing organic photodiodes
Author(s) -
Lamprecht Bernhard,
Kraker Elke,
Sagmeister Martin,
Köstler Stefan,
Galler Nicole,
Ditlbacher Harald,
Ungerböck Birgit,
Abel Tobias,
Mayr Torsten
Publication year - 2011
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.201105300
Subject(s) - photodiode , waveguide , optoelectronics , materials science , absorbance , carbon dioxide sensor , substrate (aquarium) , detector , photodetector , electro optical sensor , optics , nanotechnology , physics , chemistry , carbon dioxide , oceanography , organic chemistry , geology
We present a novel optical sensor platform, combining monolithically integrated ring‐like sensor waveguides together with ring‐shaped thin‐film organic photodiodes (OPDs) on one substrate. The OPDs serve as integrated light detectors, simplifying the detection system by minimizing the number of required optical components. The waveguide structures, including a means of coupling light in and out of the waveguides, serve as sensing elements. The functionality of the concept is demonstrated by an integrated carbon dioxide sensor, utilizing absorbance as sensing principle. The integrated optical sensor platform is suitable for the parallel detection of multiple parameters in a single sensor chip using sensor arrays. (© 2011 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)