Basic Principles and Applications of Dye-Sensitized Solar Cells

Introduction The basic principles and applications of dye-sensitized solar cells can convert light energy into electrical energy. The main principle is the same as that of dyes, but the conversion efficiency of quantum dots is theoretically higher than that of dyes, s

Basic Principles and Applications of Dye-Sensitized Solar Cells

It can convert light energy into electrical energy. The main principle is the same as that ofdyes, but the conversion efficiency ofquantum dots. is theoretically higher than that of dyes, so there is a lot of research on this currently.

In addition to being used in the exterior walls, roofs and glass of buildings to generate electricity, dye-sensitized solar cells can produce electricity through normal indoor light and provide an auxiliary power source for electronic products. .Another option;

For example, it can be directly integrated into low-power products such as mobile phones and watches, or it can be connected to a foldable external charger. Another important use is to combine textiles and coat this solai materialre sensitized by dye on clothing to produce portable electricity. It is expected that there will be great market potential in mobile power applications in the future.

Structural composition

It is mainly composed of a nanoporous semiconductor film, a dye sensitizer, a redox electrolyte, a counter electrode and a conductive substrate. Nanoporous semiconductor films are typically metal oxides (TiO2, SnO2, ZnO, etc.), which are assembled on a glass plate with a transparent conductive film serving as the cathode of the DSC. The counter electrode serves as a reduction catalyst and is usually made of glass with a transparent conductive film coated with platinum. The sensitizing dye is adsorbed on the surface of the nanoporous titanium dioxide membrane. The electrolyte containing redox couple is filled between the positive and negative electrodes, the most commoncommonly used being KCl (potassium chloride).

Reference for the above content: Baidu Encyclopedia - Dye-Sensitized Solar Cells

Is it easy to find a job as a graduate student in the field of dye-sensitized solar cells< /h3>

Dye-sensitized solar cell (DSSC) is a new type of solar cell recently developed. DSsC is also called Grätzelcell because the structure published by Grätzel et al in 1991 is different from general photovoltaic cells. Its substrate is usually glass, or it may be a transparent, flexible polymer sheet (polymerfoil). transparent conductive oxide (TCO) layer on the glass, typically using FTO (SnO2:F), then a layer of porous nano-sized TiO2 particles (about 10 to 20 nm) about 10 microns thick to form a nano-porous film. Then, a layer of dye is applied to adhere to the parts.TiO2 icles. Usually the dye is a ruthenium-polypyridyl complex. In addition to using glass and TCO, the upper electrode is also coated with a layer of platinum as a catalyst for the electrolytic reaction. Between the two electrodes, an electrolyte containing iodide/triiodide is injected and filled. Although the current maximum conversion efficiency of DSC batteries is around 12% (theoretical maximum is 29%), the manufacturing process is simple, so it is generally believed that this will significantly reduce production costs while still reducing electricity bills per kilowatt hour.

Job prospects are good. With the rapid development of the solar cell industry, the application fields of dye-sensitized solar cells are also expanding, involving construction, transportation, communications, agriculture and other fields, providing opportunitieswide employment opportunities for professionals concerned. Job prospects for graduate students in the field of dye-sensitized solar cells are better. Dye-sensitized solar cells are a new type of solar cell technology with the advantages of high efficiency, low cost and strong preparability. They constitute one of the hot spots for research in the field of solar cells.

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