In recent years, the performance of solar cells has attracted strong attention from the photovoltaic industry. As a new type of solar cell with high theoretical limits and far-reaching market potential, heterojunction cells have been particularly outstanding in terms of performance. In order to better highlight this special advantage, it is necessary to effectively characterize and test silicon thin films. The FTIR Spectrometer developed by Millennial Solar can obtain information on the microstructure of a material by measuring the frequency, intensity and line shape of infrared absorption, helping it ensure the performance and production process of solar cells and make it better applied in practice.

Representative of optical instruments - FTIR Spectrometer

FTIR Spectrometer is a powerful tool for studying the relationship between various molecules in the infrared band or absorption radiation patterns and molecular structure. It is mainly used for the analysis of material structure. The relationship between various vibration modes and structures of local atoms or atomic groups in solid materials can also be studied. Thus, information on the local structure of the measured object can be obtained.

Highly sensitive with absolute precision

The unique, efficient optical path provided by the FTIR Spectrometer maximizes infrared light flux and delivers excellent spectral performance. It also enables users to resolve the smallest spectral features based on extremely precise optical platforms, high-quality originals, and modern SoC electronic components, and generate data based on these spectral features in real time for analysis of weak bands, complex mixtures, or low-concentration compounds.

FTIR spectra under different CVD processes

FTIR Spectrometer

As an optical instrument with a wide audience and high performance in the photovoltaic market, the FTIR Spectrometer can study the structure and distribution of Si-H bonds in amorphous silicon and microcrystalline silicon materials through the generated infrared absorption spectrum. The microstructure quality of the silicon film is judged by the defined microstructure parameter R*.

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FTIR Spectrometer can calculate the R structure factor and H content with one click, and accurately obtain the calculation results based on ultra-high wave number accuracy, and the detection time is fast and effective! Save labor and greatly improve work efficiency! Even untrained first-time users can rely on the FTIR Spectrometer to quickly evaluate production processes and put them into practice!

In order to better highlight the performance of heterojunction cells during use, it is necessary to use infrared spectroscopy to determine the passivation status of the silicon film in heterojunction cells before they are put into use. FTIR Spectrometer is deeply rooted in the photovoltaic market through clear and objective data presentation and a series of operational advantages in the detection process! In the future, Millennial Solar will continue to develop high-performance, high-quality testing equipment to help photovoltaic enterprise users thrive in the photovoltaic market!