Graphene image sensor: the light sensitivity is increased by a thousand times

Abstract It is not the first time that Nokia has reported on the development of graphene sensors, but the official development process has not been announced. More powerful evidence now shows that Nokia is engaged in related research and development. From the station
Regarding Nokia's report on the development of graphene sensors, we are not the first to hear about it, but the official has not announced the relevant research and development process. More powerful evidence now shows that Nokia is engaged in related research and development.


Nokia Poweruser reported from a foreign station that a Nokia patent is about using a graphene layer to create a camera sensor for photo sensing. The patent was granted on June 11 this year. At present, many R&D personnel are also developing the application of graphene to the field of videography. Relevant people have said that the sensitivity of this material to light is 1000 times higher than that of an ordinary camera. Graphene is good for Nokia's development of a smaller 41 million sensor, and low-light imaging will be more ideal.

The following is a patent excerpt:

"The invention is demonstrated by an example: firstly, there is such a device comprising a myriad of photon sensing layers superimposed on each other, and a transition layer between each adjacent sensing layer, the sensing layer is made of graphene, each The transition layers are assembled in a specific form to prevent each part of the light from entering the photon sensing layer next to it."

The patent cites various examples of cameras with handheld mobile devices and demonstrates the use of graphene for photo detection capabilities of camera sensors.

For example, a camera sensor based on a graphene photodetector and a graphene transistor that detects photons. The detector can be integrated into the camera's sensor system and function as a CMOS sensor, which is more like a CCD sensor. The photon detection function of graphene can be applied to a suitable intermediate layer to distinguish different wavelengths, and such a structure can also be used as a sensor of a camera.

In addition, the patent is also exemplified by handheld mobile communication devices (such as mobile phones), smart cameras, embedded camera structures, cell phone cameras, and the like.

All in all, the strong advantages of graphene have played a huge role in different fields, and its popular application will only be a matter of time. I believe that Nokia can also play such a material function better, combined with its own superb imaging technology, will also bring more surprise products to consumers in the future.

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