Purdue Research Foundation

Jeong Eun Yoo

Vladimir M Shalaev

Alexander V Kildishev

Alexandra Boltasseva

Zhaxylyk A Kudyshev

Alberto Naldoni

Luca Mascaretti

Patrik Schmuki

Radek Zboril

Stephán Kment

Ŝtêphán Kment

Radek Zbo{circumflex Over (r)}il

A thermoplasmonic device includes a titanium film and a plurality of titanium nitride tube elements disposed on the titanium film. Each of the titanium nitride tube elements includes an open top and a titanium nitride bottom. Each of the titanium nitride tube elements has titanium nitride tubular middle portion that extends from the open top to the titanium nitride bottom.

Solar thermoplasmonic nanofurnaces and method for making and using same

Titanium nitride (TiN) nanofurnaces are fabricated in a method that involves anodization of a titanium (Ti) foil to form TiOnanocavities. After anodization, the TiOnanocavities are converted to TiN at 600&#xb0; C. under ammonia flow. The resulting structure is an array of refractory (high-temperature stable) subwavelength TiN cylindrical cavities that operate as plasmonic nanofurnaces capable of reaching temperatures above 600&#xb0; C. under moderate concentrated solar irradiation. The nanofurnaces show near-unity solar absorption in the visible and near infrared spectral ranges and a maximum thermoplasmonic solar-to-heat conversion efficiency of 68 percent.

Growing community of inventors

Erlangen, Germany

Jeong Eun Yoo