An optoelectronic apparatus, a reading-out method, and a uses of the optoelectronic apparatus

A reading-out method, comprising performing the operations of a read-out unit of an optoelectronic apparatus comprising:

• at least one optoelectronic device comprising:
• a transport structure comprising at least one 2-dimensional layer;
• a photosensitizing structure configured and arranged to absorb incident light and induce changes in the electrical conductivity of the transport structure by generating pairs of electric carriers, trapping a single type of electric carriers of said pairs therein, during a predetermined trapping time τtr, to induce a change in the conductance of the transport structure;
• and
• drain and source electrodes electrically connected to respective separate locations of said transport structure;
• said read-out unit operatively connected to said drain and source electrodes to read an electrical signal generated at a transport channel created in said transport structure between the drain and source electrodes by the light impinging on said photosensitizing structure
• wherein the method comprises performing said reading of said electrical signal after an integration time interval tint has passed, and during a time interval taccess that is at least 10 times shorter than tint, wherein tint is longer than τtr and corresponds to the time interval during which integration of photo-generated electric charges occurs in the photosensitizing structure.