Automatic laying of photovoltaic module thin film

Thin-film solar panels represent a revolutionary advancement in solar PV technology, offering unprecedented flexibility and cost-effectiveness in photovoltaic applications.

The selection of deposition technologies significantly influences both the manufacturing process efficiency and the final solar panel performance. Amorphous silicon thin-film panels are manufactured through a process called plasma-enhanced chemical vapor deposition (PECVD).

Thin-film modules are particularly popular in BIPV – Building Integrated PV. They are often preferred due to their uniform appearance, and additionally these installations are far more frequently affected by shading. In particular, vertical surfaces are generally affected by shading to a greater extent, e.g. by neighboring buildings and canopies.

Due to the high number of individual cells, lower cell and module currents and higher module voltages are typical of thin-film modules. That means that relatively few modules can be connected in series. Some thin-film modules have higher voltages during their initial operation, further reducing the possible string length.

Material deposition technologies play a crucial role in thin-film solar panel manufacturing, determining the quality, efficiency, and cost-effectiveness of the final product. Two primary deposition methods dominate the industry: physical vapor deposition (PVD) and chemical vapor deposition (CVD).

While the impact on thin-film systems is lower than the impact on systems with crystalline modules, it cannot be ignored. Using power optimizers prevents the mismatch losses and provides designers with greater flexibility. Thin-film modules often have higher current and voltage tolerances.