THIN, FLEXIBLE, TUNABLE INFRARED EMISSIVITY BASED ON CARBON NANOTUBES

• Main Authors: PALMER, Katherine M, SHQAU, Krenar, CHENEY, Philip P, HEINTZ, Amy M
• Format: Patent
• Language: English; French
• Published: 19.01.2023
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PERFORMING OPERATIONS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TRANSPORTING

A thermal management or infrared display system comprises: a first electrode, a storage layer comprising a dopant, a CNT layer in contact with the storage layer; and a second electrode. Applying a voltage between the electrodes changes the infrared emissivity such that the apparent temperature of the surface changes. In this fashion, the infrared emissivity of a substrate can be tuned. L'invention concerne un système de gestion thermique ou d'affichage infrarouge, comprenant : une première électrode, une couche de stockage comprenant un dopant, une couche de nanotubes de carbone (CNT) en contact avec la couche de stockage ; et une deuxième électrode. L'application d'une tension entre les électrodes modifie l'émissivité infrarouge de sorte que la température apparente de la surface change. Ainsi, l'émissivité infrarouge d'un substrat peut être réglée.