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A time-resolved charge extraction and ion migration detection device and method

An ion migration, time-resolved technique for application in solar cells

Active Publication Date: 2021-06-01
RENMIN UNIVERSITY OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods are all indirect or qualitative studies on ion migration in perovskite, and the research objects are all researches on the open circuit state of perovskite films or devices.

Method used

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  • A time-resolved charge extraction and ion migration detection device and method
  • A time-resolved charge extraction and ion migration detection device and method
  • A time-resolved charge extraction and ion migration detection device and method

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Embodiment Construction

[0029] The present invention will be described in detail below in conjunction with the accompanying drawings. However, it should be understood that the accompanying drawings are provided only for better understanding of the present invention, and they should not be construed as limiting the present invention. In the description of the present invention, it should be understood that the terms "first", "second" and so on are only used for the purpose of description, and should not be understood as indicating or implying relative importance.

[0030] like figure 1 As shown, the time-resolved charge extraction and ion migration detection device provided by the present invention includes a laser 1 , an oscilloscope, a modulatable switch 3 , a resistance box 4 , a digital pulse generator 5 and a computer 6 .

[0031] The laser 1 is fixedly arranged above the perovskite solar cell 7 to be tested, and is used for emitting excitation light to simulate sunlight. The positive pole of t...

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Abstract

The invention relates to a detection device and method for time-resolved charge extraction and ion migration, which is characterized in that it includes a laser, an oscilloscope, an adjustable switch, a resistance box, a digital pulse generator and a computer; Above the titanium ore solar cell, the positive pole of the perovskite solar cell to be tested is connected to the positive pole of the oscilloscope and the input end of the adjustable switch and the resistance box, respectively, and the negative pole of the perovskite solar cell to be tested is respectively Connect the negative pole of the oscilloscope and the output end of the adjustable switch and the resistance box; the signal output end of the digital pulse generator is respectively connected to the trigger end of the laser, the oscilloscope and the adjustable switch; the computer is respectively connected to the The signal terminal of the laser, the resistance box and the digital pulse generator can be widely used in the technical field of solar cells.

Description

technical field [0001] The invention relates to a detection device and method for time-resolved charge extraction and ion migration, and belongs to the technical field of solar cells. Background technique [0002] In recent decades, with the aggravation of energy crisis and environmental problems, the research and development of new energy sources has become an inevitable trend. Among many new energy sources, solar energy has attracted much attention because of its non-polluting, large reserves and wide sources. Solar cells are a powerful way to utilize solar energy. After decades of development of silicon cells, compound cells and thin film cells, solar cells have become a new hot spot for organic-inorganic hybrid metal halide perovskite solar cells. After ten years of development of solar cells, the photoelectric conversion efficiency has rapidly broken through the 20% mark, and because of the simple preparation process and low production cost, perovskite solar cells have ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02S50/15
CPCH02S50/15Y02E10/50
Inventor 艾希成秦玉军袁帅郭艳如
Owner RENMIN UNIVERSITY OF CHINA