Multi layer organic thin film solar cell

Abstract

The disclosed invention consists of high efficiency organic solar cells (0) with a multi layer structure, consisting of cathode layer (1), organic acceptor layer (2), organic donor layer (3), conductive anode layer (4) and a substrate layer (5), where an adjustment of electronic levels of separated layers is achieved by introduction of at least one intermediate matching layer (x). In conjunction with the selection of active layer (3) consisting of cyanine dyes with appropriate counterions (e.g. hexafluorophosphate), high performance organic solar cells with long lifetimes can be fabricated with a fast and simple manufacturing method.

Description

Technical field [0001] The present invention describes a multilayer organic thin film solar cell, which includes a cathode layer, an active electron acceptor layer, an active electron donor layer, a conductive anode layer, and a substrate layer stacked adjacent to each other, and is used to manufacture a multilayer organic thin film solar cell Methods. Background technique [0002] Organic solar cells composed of organic electronic materials are in the ascendant, which has the potential to provide cheap photovoltaic electricity. [0003] Exciton solar cells based on the multilayer structure of semiconducting organic small molecules and polymers have been well known for a long time, and it is believed that their properties are expected to obtain devices that can convert solar energy inexpensively and on a large scale. These devices usually consist of a thin film of electron donor and acceptor material sandwiched between charge collection electrodes. At least two layers with differ...

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Problems solved by technology

Another disadvantage is the possible variation of the resulting layer thickness, which in turn can lead to difficult-to-implement electrical properties of organic molecular layers, such as insulating molecular layers

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