Thin film solar cells, like other types of solar cells, have different spectral responses and can capture varying ranges of wavelengths depending on the materials used in their construction.
Some thin film solar cell technologies, such as amorphous silicon (a-Si) and cadmium telluride (CdTe), are primarily optimized for capturing the visible spectrum of light, which includes wavelengths roughly ranging from 400 to 700 nanometers. These solar cells are less efficient at capturing light from the infrared and ultraviolet regions of the electromagnetic spectrum.
However, there are other types of thin film solar cells, such as copper indium gallium selenide (CIGS) and perovskite solar cells, which have broader spectral responses and can capture a wider range of wavelengths. These technologies can be designed to capture not only the visible spectrum but also a portion of the infrared and ultraviolet spectrum, potentially allowing for a higher overall energy conversion efficiency.
It's important to note that the specific performance and wavelength range of solar cells can vary based on their design, materials, and engineering. Researchers and developers continue to explore new materials and technologies to improve the efficiency and spectral response of thin film solar cells.