Sensor, system and method for acquiring a signal indicative of an intensity spectrum of electromagnetic radiation

A sensor for acquiring a signal indicative of an intensity spectrum of electromagnetic radiation, the sensor comprising:

• a substrate layer;
• and
• a layered sensor layer atop the substrate layer;
• wherein the layered sensor layer includes:
• a transparent conductive layer;
• a photocurrent generation spectrum conductive layer;
• and
• at least one middle insulating layer located between the transparent conductive layer and the photocurrent generation spectrum conductive layer;
• wherein the photocurrent generation spectrum conductive layer has a first photocurrent generation spectrum covering a first band of energy levels of the electromagnetic radiation and the at least one middle insulating layer has a second photocurrent generation spectrum covering a second band of the energy levels of the electromagnetic radiation, the second band complementing the first band.