title: Nanostructured materials for photon detection.
abstract: The detection of photons underpins imaging, spectroscopy, fibre-optic communications and time-gated distance measurements. Nanostructured materials are attractive for detection applications because they can be integrated with conventional silicon electronics and flexible, large-area substrates, and can be processed from the solution phase using established techniques such as spin casting, spray coating and layer-by-layer deposition. In addition, their performance has improved rapidly in recent years. Here we review progress in light sensing using nanostructured materials, focusing on solution-processed materials such as colloidal quantum dots and metal nanoparticles. These devices exhibit phenomena such as absorption of ultraviolet light, plasmonic enhancement of absorption, size-based spectral tuning, multiexciton generation, and charge carrier storage in surface and interface traps.
authors.affiliation: Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario M5S 3G4, Canada.
authors.forename: Gerasimos
authors.initials: G
authors.lastname: Konstantatos
authors.forename: Edward H
authors.initials: EH
authors.lastname: Sargent
mesh_terms: D049329:Nanostructures; D036103:Nanotechnology / Q000379:methods*; D055095:Optics and Photonics / Q000379:methods*; D017785:Photons; D020349:Surface Plasmon Resonance
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