Photosensitizers and Photoelectric Conversion Elements

A technology for photoelectric conversion elements and photosensitizers, applied in the fields of photosensitizers and photoelectric conversion elements, can solve the problems that conversion efficiency and durability have not yet reached a practical level, and achieve improved photoelectric conversion efficiency, improved adsorption stability, and high molar absorption coefficient. Effect
CN106463272BActive Publication Date: 2018-06-08CHEMICREA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHEMICREA
Publication Date
2018-06-08

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Abstract

The present invention provides a photosensitizer excellent in conversion efficiency and durability. The photosensitizer of the present invention is characterized in that it is a dye represented by the following formula or a salt thereof. In addition, in the following chemical formulae, m is an integer of 0-4. n is an integer of 0 or 1. p is an integer of 0-2. R1, R2, R3 represent hydrogen atoms, alkyl or aryl groups, etc., R4, R4', R4", R5, R6, R7, R8, R9 represent hydrogen atoms, alkyl groups, etc. X is carbonyl, etc. Z1, Z2 represents Carboxyl etc.
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Description

technical field

[0001] The present invention relates to a photosensitizer and a photoelectric conversion element using the photosensitizer. Background technique

[0002] Among organic solar cells attracting attention as next-generation solar cells in recent years, there are broadly divided into organic thin-film type and dye-sensitized type. Organic thin-film solar cells combine organic materials to make p-n junctions and utilize them. The working mechanism is exactly the same as that of inorganic solar cells represented by silicon. In contrast, dye-sensitized solar cells (Dye Sensitized Solar Cells, DSCs) are characterized by the use of modified electrodes that combine organic dyes as photosensitizers with inorganic semiconductors such as titanium oxide and zinc oxide. , In addition, the working mechanism of dye-sensitized solar cells is completely different from that of inorganic solar cells, rather close to photosynthesis. This solar cell, which should be called an inor...

Claims

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