Teknologian Tutkimuskeskus Vtt Oy

Leif Grönberg

Mika Prunnila

Juha Hassel

Arttu Luukanen

Panu Helistö

Jouni Ahopelto

Andrey Timofeev

Grigoras Kestutis

A blank suitable for use as a body of a supercapacitor comprises a first porous semiconductor volume and a second porous semiconductor volume, the second porous semiconductor volume laterally surrounded by the first porous semiconductor volume and separated from it by a trench that is suitable for receiving an electrolyte, whereby the first and second porous semiconductor volume comprise channels opening to the trench. A supercapacitor comprises a body formed by using the blank according to any one of the preceding claims, so that the first porous semiconductor volume acts as one electrode and the second porous semiconductor volume acts as another electrode, with an electrolyte in the trench.

Blank suitable for use as a body of a supercapacitor, a supercapacitor, and a method of manufacturing a porous silicon volume

A superconducting thermal detector (bolometer) of THz (sub-millimeter) wave radiation based on sensing the change in the amplitude or phase of a resonator circuit, consisting of a capacitor (Csh) and a superconducting temperature dependent inductor where the said inductor is thermally isolated from the heat bath (chip substrate) by micro-suspensions. The bolometer design includes a thin film inductor located on the membrane, a single or/and multi-layered thin film capacitor, and a thin film absorber of incoming radiation. The bolometer design can also include a lithographic antenna with antenna termination and/or a back reflector beneath the membrane for optimal wavelength detection by the resonance circuit. The superconducting thermal detector (bolometer) and arrays of these detectors operate in a temperature range from 1 Kelvin to 10 Kelvin.

Superconducting thermal detector (bolometer) of terahertz (sub-millimeter wave) radiation

Growing community of inventors

Espoo, Finland

Leif Grönberg