An all-solution method for preparing all-carbon flexible photodetectors and its preparation method

Abstract

The invention belongs to the field of light detectors, and relates to an all-carbon flexible light detector prepared through an all-solution method and a preparation method thereof. The detector comprises two parts of a flexible electrode and an intermediate active layer. Concretely, the electrode is formed in a way that a poly(3,4-ethylenedioxythiophene)-polystyrolsulfon acid (PEDOT / PSS) electrode is sprayed on a flexible PET substrate; and the intermediate active layer is an intermediate active layer formed in a way that a single walled carbon nanotube (SWCNT) solution and a C60 solution are sprayed on the channel part of the electrode in a layered way so that finally the all-carbon flexible light detector prepared through the all-solution method is prepared. The device has the characteristics of simple structure and excellent performance, and has simple preparation technology and low cost so that the device has wide application prospect.

Description

technical field [0001] The invention relates to the field of photodetectors, in particular to an all-carbon flexible photodetector prepared by an all-solution method and a preparation method thereof. Background technique [0002] A photodetector is an electronic device that converts light energy into an electrical signal. In recent years, optical detectors have been widely used in national economic and military fields such as optical communication, long-distance sensing, industrial automatic control, thermal imaging, night vision and missile guidance. However, some photodetectors contain toxic and harmful elements and rigid features limit their further use and development. Therefore, many western developed countries have formulated major targeted research programs to promote the development of flexible electronic devices, such as the TRADIM program in Japan, the FDCASU program in the United States, and the Poly Apply and SHIFT programs in the Seventh Framework Program of th...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, some photodetectors contain toxic and harmful elements and rigidity, and the preparation process of some photodetectors is relatively complicated. Therefore, there is an urgent need for a flexible photodetector with non-toxic, stable photoresponse and simple preparation process. All Carbon Photodetector

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