CuxS (x=1-2) counter electrode preparation method for quantum dot sensitization solar batteries

A quantum dot sensitization, solar cell technology, applied in the field of CuxS counter electrode preparation, can solve the problems of high cost, low catalytic activity, difficult to encapsulate, etc., achieve good photoelectric conversion efficiency, reduce transmission resistance, and reduce manufacturing costs. Effect

Inactive Publication Date: 2013-07-24
ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

However, these kinds of counter electrodes all have certain problems. For example, noble metal counter electrodes such as platinum and gold are easily poisoned in polysulfide electrolytes, have low catalytic activity and high cost; although carbon counter electrodes are cheap, their activity still cannot reach Satisfy the level of high-efficiency work of the battery; most metal sulfide counter electrodes need to be prepared through complex ...

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  • CuxS (x=1-2) counter electrode preparation method for quantum dot sensitization solar batteries
  • CuxS (x=1-2) counter electrode preparation method for quantum dot sensitization solar batteries
  • CuxS (x=1-2) counter electrode preparation method for quantum dot sensitization solar batteries

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Embodiment

[0020] [Example]: Put the FTO conductive glass into the thermal evaporation chamber after ultrasonic cleaning and drying with ethanol and acetone, and vacuumize to 2×10 through mechanical pump and molecular pump. -2 After Pa, start to evaporate Cu 2 A mixture of S and S powder. where Cu 2 The molar ratio of S and S powder is 1:1. Acquired Cu x S(x=1–2) counter electrode thickness is 200-500nm. Will Cu x S(x=1–2) cut the electrode into small pieces and put them into the tube furnace for annealing in the air for 300 seconds, 480 seconds, 1800 seconds, and 3600 seconds, then take them out to obtain the quantum dot-sensitized solar cells. Cu x S(x=1–2) against the electrode.

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Abstract

The invention discloses a CuxS (x=1-2) counter electrode preparation method for quantum dot sensitization solar batteries. Cuprous sulfide powder and elemental sulfur powder of different ratio are mixed, a counter electrode is manufactured on a base body like conductive glass through a thermal evaporation method, and the counter electrode, a photo-positive electrode and electrolyte can form the quantum dot sensitization solar battery. The preparation method is simple, can prepare in large area, can easily manufacture counter electrodes with high efficiency and low cost and is suitable for manufacturing various quantum dot sensitization solar batteries.

Description

technical field [0001] The invention belongs to the field of manufacturing quantum dot sensitized solar cells, in particular to a Cu alloy for quantum dot sensitized solar cells x Preparation method of S(x=1–2) counter electrode. Background technique [0002] Solar photovoltaic power generation can be regarded as the most beautiful, longest-lived and most reliable power generation technology so far. After more than one hundred years of history, it has developed from the first generation of crystalline silicon solar cells to the third generation of solar cells. Dye-sensitized solar cells (DSCs) are known as one of the most promising solar cells because of their cheap cost (the production cost is only 1 / 5-1 / 10 of that of silicon solar cells) and simple manufacturing process. . At present, the photoelectric conversion efficiency of DSCs exceeds 12%, and various technical indicators are already very close to the requirements of practical applications. [0003] In recent year...

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Application Information

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IPC IPC(8): H01G9/042H01G9/20
Inventor 董伟伟周曙王时茂邓赞红邵景珍方晓东
Owner ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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