Scientists develop a flexible photodetector the size of three atoms that can be stretched, contracted and deformed as needed.
During the Mobile World Congress, we saw the first flexible screens for all types of devices. We also saw the foldable smartphones of Samsung and Huawei, which have not reached the market. For this type of devices other technologies are developed, like the one developed by the CSIC. Researchers at the Institute of Materials Science in Madrid developed a photodetector three atoms thick.
These experimental photodetectors have been manufactured in molybdenum disulfide. Its main characteristic is that they allow it to be bent, stretched and compressed, as if it were an elastic band. It has been shown by a study that the deformation of these prototypes can modify the geometry, properties and operation.
They create a photodetector of three atoms that can be deformed without problems
“Thus, by stretching these photodetectors, the spectral width of the detector and its responsiveness could be increased. In the same way, when compressing them, a notable increase in response speed is observed ”, highlights Andrés Castellanos Gómez, from the Institute of Materials Science in Madrid.
The photodetectors developed would have the ability to operate under a number of disparate conditions. It would even have the ability to imitate the human eye, adapting to different lighting conditions. This would be achieved through different stress or compression strains.
"This technology, for example, could have future applications in the field of photography, in the adaptation of day and night modes depending on the amount of light. The camera detector would change its response to adjust to the available light through a small mechanical deformation controlled by the user ”, explains researcher Patricia Gant.
Although it is still in the research and development phase, the first data is quite promising. It could be used in the fields of photography, better adapting to the lighting conditions.