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Low-cost counter electrode for dye-sensitized solar battery

A technology of solar cells and dye sensitization, applied in the field of green renewable energy, can solve the problems of high price and limited platinum reserves, and achieve the effect of solving the problem of high price and resource shortage.

Inactive Publication Date: 2010-07-07
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although platinum electrodes have superior performance, they are expensive, and the reserves of platinum are very limited, so it is urgent to find alternative materials for platinum

Method used

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  • Low-cost counter electrode for dye-sensitized solar battery
  • Low-cost counter electrode for dye-sensitized solar battery
  • Low-cost counter electrode for dye-sensitized solar battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The preparation of embodiment 1 molybdenum carbide slurry

[0019] After mixing molybdenum carbide fine powder 300mg, titanium dioxide powder (P25, Degauss) 100mg, triton 100mg, isopropanol 5mL and zirconium baht 5g, ball milled for 4 hours, prepared into a spray slurry, heated to remove the organic solvent, Printing and knife coating pastes are then prepared.

Embodiment 2

[0020] Embodiment 2 spraying method prepares molybdenum carbide electrode

[0021] The prepared slurry was evenly sprayed on the FTO conductive glass with a spray pen, the spraying distance was controlled at 10 cm, and the spraying pressure was controlled at 1000 Pascal. Under the protection of nitrogen, the electrodes were fired in a tube furnace at 500°C for 30 minutes.

Embodiment 3

[0022] Embodiment 3 printing method prepares molybdenum carbide electrode

[0023] The prepared slurry was printed on the FTO conductive glass with a screen printing machine, and the electrodes were fired in a tube furnace at 500° C. for 30 minutes in a muffle furnace under a nitrogen atmosphere.

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Abstract

The invention discloses a low-cost counter electrode and a dye-sensitized solar battery manufacturing process by utilizing the counter electrode, belonging to the technical field of green renewable energy sources; the counter electrode is characterized in that: molybdenum carbide (Mo2C), tungsten nitride (W2N), molybdenum nitride (Mo2N), vanadium carbide (VC), vanadium nitride (VN), niobium carbide (NbC), niobium nitride (NbN), and wolfram carbide (WC,W2C) are used as material of the counter electrode, inorganic crystalline material is used as bonder and is dispersed in organic solvent or aqueous solution for manufacturing slurry, and the counter electrode is manufactured by utilizing spraying, printing, blade coating methods, and the counter electrode and light anode and electrolyte are assembled into the dye-sensitized solar battery. The preparation process is simple, high temperature and high pressure do not need in the manufacturing process, the process is no toxic and environmental-protection, the electrode with high efficiency and low cost can be manufactured easily, and the process is suitable for manufacturing various dye-sensitized solar batteries.

Description

technical field [0001] The invention belongs to the technical field of green renewable energy, and relates to the manufacture of a low-cost counter electrode and its application in dye-sensitized solar cells. Background technique [0002] In 1991, Professor Graetzel of the Swiss Federal Institute of Technology invented the dye-sensitized solar cell (DSC for short). Because of its low cost, simple manufacturing process, high efficiency, and environmental friendliness, it has caused a worldwide research boom once it came out. DSC is mainly composed of three parts, namely: a photoanode, usually a nanocrystalline titanium dioxide film adsorbed with a dye; a counter electrode, usually a platinum electrode; and an I 3 - / I - Electrolyte for redox couples. The principle is: the dye absorbs a photon, the dye transitions from the ground state to the excited state, the excited state of the dye is unstable, and a photogenerated electron and dye positive ion are generated, and the p...

Claims

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Application Information

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IPC IPC(8): H01G9/042H01G9/20H01M14/00H01L51/44H01L51/46
CPCY02E10/542H01G9/2059H01G9/2022H01G9/2031
Inventor 马廷丽武明星
Owner DALIAN UNIV OF TECH
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