Low-cost sensing platforms based on tunable 1D photonic crystals integrated with organic light-emitting diodes and photodetectors
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Herein, we present an innovative detection platform based on utilizing one-dimensional photonic crystals (ID PCs) as responsive multilayers for intensity modulation of narrow-band light sources, namely, organic light-emitting diodes (OLEDs). The tunable range for the stop band modulation lies in the visible region and can thus be detected in a straightforward fashion by a visible-light photodetector or an image sensor (CCD). We propose a route towards the bottom-up assembly of a fully functional, integrated miniature platform with a resolution exceeding the capabilities of most commercial spectrometers, and show temperature, humidity and chemical analyte detection.
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A step towards the electrophotonic nose: Integrating 1D photonic crystals with organic light-emitting diodes and photodetectors Exner A; Pavlichenko I; Baierl D; Schmidt M; Derondeau G; Lotsch B; Lugli P; Scarpa G (Wiley-VCH Verlag, 2014)An innovative integrated sensing platform for the detection of various chemical analytes via translating the photonic stop-band shift of a one-dimensional photonic crystal (PC) into an electrical current change is proposed. ...
Bringing one-dimensional photonic crystals to a new light: An electrophotonic platform for chemical mass transport visualisation and cell monitoring Pavlichenko I; Broda E; Fukuda Y; Szendrei K; Hatz A; Scarpa G; Lugli P; Bräuchle C; Lotsch B (Royal Society of Chemistry, 2015)Photonic sensor technologies represent an important milestone in monitoring complex physical, chemical and biological systems. We present an integrated chemo- and bio-photonic sensing scheme drawing on the integration of ...
Low-cost thermo-optic imaging sensors: A detection principle based on tunable one-dimensional photonic crystals Exner A; Pavlichenko I; Lotsch B; Scarpa G; Lugli P (2013)Infrared (IR) sensors employing optical readout represent a promising class of devices for the development of thermographic imagers. We demonstrate an infrared radiation detection principle based on thermally tunable ...