An organic photodetector for a wide spectrum and a preparation method thereof

A photodetector and wide-spectrum technology, which is applied in photovoltaic power generation, electric solid-state devices, semiconductor/solid-state device manufacturing, etc., can solve problems such as complex processes, achieve simple processes, expand the spectral response range, and improve the effect of photogenerated current
CN109065721AInactive Publication Date: 2018-12-21XIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAN UNIV OF TECH
Publication Date
2018-12-21
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an organic photodetector for a wide spectrum, comprising a glass substrate, an ITO (indium tin oxide) electrode layer is plated on the glass substrate, and an anode buffer layer, an active layer, a cathode buffer layer and an Al electrode layer are sequentially coated on the surface of the ITO electrode layer from bottom to top. The anode buffer layer and cathode buffer layer can enhance the collection of holes or electrons so as to increase the photocurrent, block electrons or holes to reduce the dark current, improve the specific detection rate of the detector, and avoid the high leakage current caused by SWCNT in the active layer.
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Description

technical field

[0001] The invention belongs to the technical field of photoelectric detection devices, and relates to an organic photodetector for wide spectrum, and also relates to a preparation method of the organic photodetector for wide spectrum. Background technique

[0002] Photodetectors are devices that convert optical signals into electrical signals, and are widely used in various fields of military and national economy. At present, commercial optoelectronic devices mainly use inorganic materials, but their high production cost and complicated processing technology are not conducive to large-scale production. In contrast, organic semiconductor materials have the advantages of excellent processability, low cost, and large-area fabrication, but have low electron mobility and poor stability. Although pure organic or inorganic semiconductor materials have their own advantages, they all have their own shortcomings, which limit their application range. Organic / inorgani...

Claims

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