A monitoring method and system for in situ real-time characterization of the internal interface of a solar cell

Abstract

The invention discloses a monitoring method and system for in-situ real-time characterization of the internal interface of a solar cell. The monitoring method includes: using a laser light source to irradiate and scan the Raman spectrum of the solar cell in the working state, and collect the Raman spectrum, and simultaneously monitor the photovoltaic performance of the battery in real time, and analyze the obtained Raman spectrum and I-V voltammetry The characteristic curve synchronous data is analyzed and processed to realize in-situ real-time characterization of the internal interface of the solar cell. The system includes: a laser light source, at least used to irradiate and scan the Raman spectrum of the solar cell in working condition; a Raman spectrum acquisition unit; a detection unit, at least used to monitor the photovoltaic performance of the solar cell , and an analysis processing unit for at least obtaining a relationship between Raman spectral shift and solar cell performance and efficiency. The invention is simple and convenient to operate, and is suitable for monitoring the information on the change of the internal interface structure and composition with the photovoltaic effect under the working state of the solar cell.

Description

technical field

[0001] The invention relates to a monitoring method for in-situ real-time characterization of the internal interface of a solar cell, in particular to a method for in-situ real-time monitoring of changes in the internal structure and components of a dye-sensitized solar cell by using surface-enhanced Raman spectroscopy, especially for working conditions In situ probing method and corresponding system of internal interfaces of dye-sensitized solar cells. Background technique

[0002] The supply of clean and sustainable energy is considered to be one of the most important scientific and technological challenges facing mankind in the 21st century. Photovoltaic devices directly convert solar energy into electricity, providing a practical and sustainable solution to meet the growing global energy demand. However, since the first photovoltaic devices appeared in the 1950s, capturing solar energy at low cost while ensuring continuous stable and efficient operation ...

Examples

Embodiment 1

[0084] 1. Preparation of titania nanotube films

[0085] Cut the titanium sheet into 4cm×5cm, place it in methanol, isopropanol, and acetone solution, ultrasonically clean it for 15 minutes, put it into the electrolyte solution containing fluoride ions for the first anodic oxidation, connect the titanium sheet to the anode, and connect the platinum sheet to the anode. The cathode is connected, the voltage is 60V, and the time is 3h.

[0086] Put the titanium dioxide nanotube film after primary oxidation in deionized water, dry it with nitrogen gas until the film falls off, and place the above-mentioned titanium substrate in a solution containing fluorine ions for the second oxidation, the oxidation voltage is 60V, and the time is 2h.

[0087] 2. Exfoliation of titania nanotubes from titanium substrates

[0088] The secondary oxidized titanium dioxide nanotubes were calcined in a muffle furnace at a calcination temperature of 450° C. and a calcination time of 2 h. After calci...

technical field

[0001] The invention relates to a monitoring method for in-situ real-time characterization of the internal interface of a solar cell, in particular to a method for in-situ real-time monitoring of changes in the internal structure and components of a dye-sensitized solar cell by using surface-enhanced Raman spectroscopy, especially for working conditions In situ probing method and corresponding system of internal interfaces of dye-sensitized solar cells. Background technique

[0002] The supply of clean and sustainable energy is considered to be one of the most important scientific and technological challenges facing mankind in the 21st century. Photovoltaic devices directly convert solar energy into electricity, providing a practical and sustainable solution to meet the growing global energy demand. However, since the first photovoltaic devices appeared in the 1950s, capturing solar energy at low cost while ensuring continuous stable and efficient operation ...

Examples

Embodiment 1

[0084] 1. Preparation of titania nanotube films

[0085] Cut the titanium sheet into 4cm×5cm, place it in methanol, isopropanol, and acetone solution, ultrasonically clean it for 15 minutes, put it into the electrolyte solution containing fluoride ions for the first anodic oxidation, connect the titanium sheet to the anode, and connect the platinum sheet to the anode. The cathode is connected, the voltage is 60V, and the time is 3h.

[0086] Put the titanium dioxide nanotube film after primary oxidation in deionized water, dry it with nitrogen gas until the film falls off, and place the above-mentioned titanium substrate in a solution containing fluorine ions for the second oxidation, the oxidation voltage is 60V, and the time is 2h.

[0087] 2. Exfoliation of titania nanotubes from titanium substrates

[0088] The secondary oxidized titanium dioxide nanotubes were calcined in a muffle furnace at a calcination temperature of 450° C. and a calcination time of 2 h. After calci...

Images