A method for producing a photosensitive element, the photosensitive device and a light sensing unit

One kind of a photosensitive unit including a first electrode, a first insulating layer, a second electrode and a photosensitive structure. A first insulating layer covering the first electrode and having an opening exposing the first electrode. Photosensitive structure is located on the first electrode and the first insulating layer filled in the opening. Photosensitive structure comprising a first photosensitive layer in the photosensitive layer and the second stack. Photosensitive material of the first layer is SixGeyOz. Photosensitive material of the second layer is SivOw. A second electrode covering the photosensitive structure. Further, the apparatus comprising light sensing means and a method for producing the above-described photosensitive photosensitive cells has also been proposed.