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What is the Cadmium Telluride Glass

2025-11-10

  Cadmium telluride glass, also known as cadmium telluride thin - film solar cells, is a photovoltaic device that combines the functions of power generation and glass .

The following is a detailed introduction :

- Structure: A standard cadmium telluride power - generating glass is composed of five layers, including a glass substrate, a transparent conductive oxide (TCO) layer, a cadmium sulfide (CdS) layer, a cadmium telluride (CdTe) layer, a back - contact layer, and a back - electrode.
- Working principle: It is based on the photoelectric effect and semiconductor properties. When sunlight shines on the cadmium telluride layer, the energy of photons excites electrons in the semiconductor to transition, forming "electron - hole pairs". Through the built - in electric field of the PN junction, electrons and holes are separated and guided to the electrodes, forming direct current, which can be output through wire busbars.
- Advantages: It has the characteristics of high power generation capacity, high conversion efficiency, low temperature coefficient, excellent low - light power generation performance, flexible installation angle, high stability, and small hot - spot effect. It can also be customized in terms of color, pattern, size, and transmittance.
- Application scenarios: It is suitable for distributed, component - based, and integrated green buildings, and is widely used in building photovoltaic integration (BIPV), such as building exterior walls, roofs, and curtain walls. It can also be used in civil power supply and large - scale grid - connected photovoltaic power plants.