title: Toward Tunable Photonic Nanosheet Sensors: Strong Influence of the Interlayer Cation on the Sensing Characteristics.
abstract: An approach toward intercalant tunable nanosheet-based Fabry-Pérot sensors is presented. The intercalant tetrabutylammonium significantly increases the sensitivity of the photonic nose sensor to volatile organic compounds with increasing polarity, enabling polarity-driven color-coded vapor differentiation. Paired with the improved millisecond response times for polar vapors, vapor imaging with spatio-temporal resolution is within reach.
authors.affiliation: Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569, Stuttgart, Germany.|Department of Chemistry, Ludwig-Maximilians-Universität (LMU), Butenandtstrasse 5-13, 81377, Munich, Germany.
authors.forename: Pirmin
authors.initials: P
authors.lastname: Ganter
authors.affiliation: Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569, Stuttgart, Germany.
authors.forename: Leslie M
authors.initials: LM
authors.lastname: Schoop
authors.affiliation: Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569, Stuttgart, Germany.|Department of Chemistry, Ludwig-Maximilians-Universität (LMU), Butenandtstrasse 5-13, 81377, Munich, Germany.|Nanosystems Initiative Munich (NIM) and Center for Nanoscience, Schellingstraße 4, 80799, Munich, Germany.
authors.forename: Bettina V
authors.initials: BV
authors.lastname: Lotsch
keywords: Fabry-Pérot device; colorimetric sensing; intercalants; nanosheets; photonic nose