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

A photodetector and full-solution technology, which is applied in the field of preparation of all-carbon flexible photodetectors by the full-solution method, can solve problems such as the complex preparation process of photodetectors, and achieve excellent photoresponse capability, convenient operation, and excellent performance Effect

Active Publication Date: 2017-07-25
NANJING TECH UNIV
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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

Method used

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

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Embodiment 1

[0038] A preparation method for preparing an all-carbon flexible photodetector by an all-solution method is carried out according to the following steps:

[0039] 1) Flexible substrate treatment: The flexible substrates were ultrasonicated for 20 min each in deionized water, ethanol, isopropanol, and deionized water, and dried with nitrogen gas.

[0040] 2) Electrode preparation: Dilute the poly(3,4-ethylenedioxythiophene)-polystyrenesulfonic acid (PEDOT / PSS) solution with a mass fraction of 2% with ethanol to a mass fraction of 1.3%, and add a mass fraction of 5% The dimethyl sulfoxide (DMSO) solution was used to increase the conductivity of its poly(3,4-ethylenedioxythiophene)-polystyrene sulfonic acid (PEDOT / PSS). Place the mixed solution on a shaker for 30 minutes to mix the solution evenly. Take 100 uL of poly(3,4-ethylenedioxythiophene)-polystyrene sulfonic acid (PEDOT / PSS) solution and place it in the spray gun to spray the electrode. The temperature of the heating tab...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/028H01L31/09H01L31/18
CPCH01L31/028H01L31/09H01L31/18Y02P70/50
Inventor 刘举庆曹立君黄维
Owner NANJING TECH UNIV
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