Self-driven photodetectors that can detect light without any external voltage bias are important for low-power applications, including future internet of things, wearable electronics, and flexible electronics. While two-dimensional (2D) materials exhibit good optoelectronic properties, the extraordinary properties have not been fully exploited to realize high-performance self-driven photodetectors. In this paper, a metal–semiconductor–metal (MSM) photodetector with graphene and Au as the two contacts have been proposed to realize the self-driven photodetector. Van der Waals contacts are formed by dry-transfer methods, which is important in constructing the asymmetrical MSM photodetector to avoid the Fermi-level pinning effect. By choosing graphene and Au as the two contact electrodes, a pronounced photovoltaic effect is obtained. Without any external bias, the self-driven photodetector exhibits a high responsivity of 7.55 A W−1 and an ultrahigh photocurrent-to-dark current ratio of ~108. The photodetector also shows gate-tunable characteristics due to the field-induced Fermi-level shift in the constituent 2D materials. What is more, the high linearity of the photodetector over almost 60 dB suggests the easy integration with processing circuits for practical applications.

By drawing nutrients from the traditional culture of the She ethnic group, and by using the unique cultural elements of the She ethnic group as explicit image carriers to convey the implicit folk customs and beliefs of the She ethnic group, the animation works are endowed with the cultural connotations of the She ethnic group, while at the same time providing a carrier for the inheritance and development of the traditional culture of the She ethnic group.The animation work “She Herbs” takes the application of traditional She culture and animation creation as the main theme, and studies how to reasonably apply traditional She cultural elements in the script story, character design, scene design, art style design and sound design in the creation of animation art, so as to make it an animation design work with regional cultural characteristics, so that the artistic expression and ideology can be better integrated in the work. The attempt to combine the rich and colourful traditional culture of the She people with animation has brought a rich source of inspiration and creative nourishment to the creation of the short animated art film “She Herbs”.

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