Abstract: The present disclosure provides an image sensor, which may include a driving layer, a negative electrode layer formed in the driving layer, a N-region layer formed above the negative electrode layer. The N-region layer includes multiple cylindrical structures formed of semiconductor materials. The image sensor may also include a light absorption layer formed above the N-region layer. The light absorption layer is composed of a multi-layer structure including a P-region layer formed using quantum dot semiconductor materials. The image sensor may further include a positive electrode layer formed above the light absorption layer and configured to receive incoming light signals.

Abstract: The disclosure provides an educational toy. The educational toy incudes a base, a rotatable frame, at least one clamping claw, and at least one impact device. The base is configured for placing on an external placement surface. The rotatable frame is provided on the base and is capable of being rotated on the base when driven by external force. The at least one clamping claw is located on the rotatable frame and configured for clamping a gift. The at least one impact device is arranged on a peripheral side of the base and configured for impacting the gift on the clamp claw when driven by external force.