Optoelectronic apparatus, a method for suppressing noise for an optoelectronic apparatus, and uses thereof
US10677649B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 11, 2018 |
| Grant date | Jun 9, 2020 |
| Priority date | — |
| Expiry date | Jul 11, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/616
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to an optoelectronic apparatus comprising: —an optoelectronic device comprising: —a transport structure (T) comprising a 2-dimensional layer; —a photosensitizing structure (P) configured and arranged to absorb incident light and induce changes in the electrical conductivity of the transport structure (T); and —drain (D) and source (S) electrodes electrically connected to respective separate locations of the transport structure (T); —noise suppression means comprising a modulation unit including: —a control unit to generate and apply on the drain (D) or source (S) electrodes a voltage oscillating signal having a component with a frequency of ωm/2π; and —a signal extraction unit to extract a required electric signal, from an output signal, with no components below ωm/2π. The present invention also concerns to a method for suppressing noise for an optoelectronic apparatus according to the invention, and to the use of the apparatus as a light detector or as an image sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.