Optical biosensors based on integrated polymer light source and polymer photodiode

✍ Scribed by Marc Ramuz; David Leuenberger; Lukas Bürgi

• Book ID: 105339465
• Publisher: John Wiley and Sons
• Year: 2010
• Tongue: English
• Weight: 649 KB
• Volume: 49
• Category: Article
• ISSN: 0887-6266
• DOI: 10.1002/polb.22111

✦ Synopsis

Abstract

Evanescent coupling is used to couple light from an organic Lambertian emitter into a single‐mode planar waveguide. A polymer light emitting diode pumps a photoluminescent layer located directly on top of the waveguide. At the out‐coupling grating stage, a fully organic mini‐spectrometer compatible with monolithical integration on optical bio chips has been developed. It consists of a single‐mode waveguide with integrated diffraction grating and a dense array of polymer photodiodes as sensing element. An overall spectral resolution of down to 5 nm has been achieved with the integrated optoelectronic system. As a proof of principle the fully organic optical device has been used in combination with a fluidic system to demonstrate an absorption‐based bio‐test with mouse immunoglobulin G. In a further step towards low‐cost and disposable lab‐on‐chip biosensors, the mentioned organic building blocks have been combined with a surface plasmon stack integrated directly onto the single mode waveguide. © 2010 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys, 2010