Photophoretic Levitation: Photophoretic Levitation of Macroscopic Nanocardboard Plates (Adv. Mater. 16/2020). Issue 16 (21st April 2020)

• Record Type: Journal Article
• Authors: Cortes, John; Stanczak, Christopher; Azadi, Mohsen; Narula, Maanav; Nicaise, Samuel M.; Hu, Howard; Bargatin, Igor
• Is Part Of: Advanced materials. Volume 32:Issue 16(2020)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2020-04-21
• Subjects: atomic layer deposition -- carbon nanotubes -- mechanical metamaterials -- photophoretic levitation; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.202070127
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract : In article number 1906878, Igor Bargatin and co‐workers demonstrate that centimeter‐scale hollow plates with nanoscale thickness and microscopic channels can levitate when illuminated with light intensity comparable to natural sunlight. Light‐driven thermal transpiration of air through the plate's channels creates air jets, which result in small‐height hovering at atmospheric pressure and mid‐air flight at reduced pressures, even allowing small payloads.