Apparatus for spectrometrically capturing light with a photodiode which is monolithically integrated in the layer structure of a wavelength-selective filter

US10139275B2 · kind B2 · utility

Assignee

• Technische Universitaet Dresden · DE

Inventors

• Maik Langner · Dresden, DE
• Hartmut Fröb · Reinhardtsgrimma, DE
• Vadim G. Lyssenko · Dresden, DE
• Markas Sudzius · Dresden, DE
• Karl Leo · Dresden, DE

Key dates

• Filing date: Oct 7, 2015
• Grant date: Nov 27, 2018
• Expiry date: Oct 7, 2035

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/549
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Apparatus for spectrometrically capturing light includes a wavelength-adjustable filter for converting spectral information into location information and an organic photodiode for converting the location information into electrical signals which can be forwarded, wherein the filter and the organic photodiode form a one-piece monolith, the organic photodiode is connected to the filter or the organic photodiode is integrated in the filter, the filter consists of at least one spectrally resolving element in the form of at least one layer-like photonic crystal which constitutes the monolith and in which two layers of variable thickness D are formed along a direction perpendicular to the incidence of light. A resonant layer is arranged between the two layers. The organic photodiode includes: a photoactive layer, a first electrode, and a second electrode sandwiching the photoactive layer, and one of the electrodes is in contact with the photonic crystal.