Other

University of Toronto

Opalux Incorporated

Opalux Incorporation

Daniel Patrick Puzzo

Geoffrey Alan Ozin

Andre Arsenault

Michael Helander

Zheng-Hong Lu

Nazir Pyarali Kherani

Paul Gregory O'Brien

Alongkarn Chutinan

A tunable photonic crystal device comprising: alternating layers of a first material and a second material, the alternating layers comprising a responsive material, the responsive material being responsive to an external stimulus, the alternating layers having a periodic difference in refractive indices giving rise to a first reflected wavelength; wherein, in response to the external stimulus, a change in the responsive material results in a reflected wavelength of the device shifting from the first reflected wavelength to a second reflected wavelength.

Tunable bragg stack

A nanocomposite material that is both transparent and electrically conductive is provided. The nanocomposite comprises a nanoporous matrix, preferably formed from nanoparticles, that is internally coated with a transparent conductive material to define an internal conductive path within the nanocomposite. The nanocomposite is substantially transparent over a defined spectral range that preferably includes at least a portion of the visible spectrum, and preferably comprises pores with a mean diameter of less than approximately 25 nm. A bilayer may be formed by depositing a layer of a transparent conductive material on top of a nanocomposite layer, or by depositing a second layer of a nanocomposite having different optical properties. The nanocomposites formed using a combination of sequential and/or concurrent deposition techniques are correspondingly discrete and/or continuously varying structures. Multilayer structures, such as photonic crystal reflectors, may be formed by depositing multiple bilayers, and integrated into devices such as tandem solar cells.

Transparent conductive porous nanocomposites and methods of fabrication thereof

Tunable Bragg stack

This application describes a tunable photonic crystal device based on the electrical actuation of photonic crystal films. This device displays non-bleachable structural color, reflecting narrow bands of wavelengths tuned throughout the entire visible spectrum by expansion and contraction of the photonic crystal lattice

Tunable photonic crystal device

Growing community of inventors

Waterloo, Canada

Daniel Patrick Puzzo