Mxenes-PEDOT:PSS composite flexible electrode and solar cell device

A solar cell and flexible electrode technology, applied in the field of solar cells, can solve the problems of low crystallinity of PEDOT, hindering hole transport efficiency and collection efficiency, and low film conductivity

Pending Publication Date: 2020-07-28
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PSS is an insulator, resulting in very low conductivity (below 1.0S cm -1 ); In addition, due to the low crystallinity of PEDOT, the hole transport efficiency and collection efficiency are hindered.

Method used

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  • Mxenes-PEDOT:PSS composite flexible electrode and solar cell device
  • Mxenes-PEDOT:PSS composite flexible electrode and solar cell device
  • Mxenes-PEDOT:PSS composite flexible electrode and solar cell device

Examples

Experimental program
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Effect test

Embodiment 1

[0045] A kind of Mxenes-PEDOT:PSS composite material described in this embodiment, Mxenes is two-dimensional transition metal carbide, nitride or carbonitride, is composed of M n+1 x n T x , where M is an early transition metal, X is carbon, nitrogen or a mixture of both, T x is the surface end group, n = 1, 2 or 3; Mxenes / PEDOT:PSS hybrid colloid solution is prepared by adding PEDOT:PSS solution to Mxenes dispersion to form Mxenes-PEDOT:PSS composite material. Among them, the Mxenes material is: Sc 2 C, Ti 2 C, Zr 2 C,Hf 2 C, Nb 2 C, V 2 C, Cr 2 C, Ta 2 C.Ti 2 N. Mo 2 C.Ti 3 C 2 .

[0046] The preparation of Mxenes (with Ti 3 C 2 T x as an example, but not limited to):

[0047]First, titanium powder, aluminum powder and graphite were mixed in a molar ratio of 3:1.2:2, and then sintered at 1650°C for 2 hours in an argon atmosphere to prepare Ti 3 AlC 2 The MAX phase. Subsequently, at room temperature, by etching Ti in a solution of 12 M LiF / 9 M HC 3 AlC ...

Embodiment 2

[0051] A Mxenes-PEDOT:PSS composite flexible electrode described in this example is prepared from the Mxenes-PEDOT:PSS composite material by one of solution spin coating, scraping coating, screen printing, inkjet printing, and film transfer printing. Wherein Mxenes-PEDOT:PSS composite material is made by the technical scheme of embodiment 1. to Ti 3 C 2 T x As an example, but not limited to: Ti 3 C 2 T x The preparation of / PEDOT:PSS composite flexible electrodes can be realized by choosing one of various methods such as solution spin coating, doctor blade coating, screen printing, inkjet printing, and film transfer printing according to the device structure. Electrode films with different thicknesses were prepared under different mass mixing ratio conditions to optimize the device performance, so as to determine the Ti 3 C 2 T x / PEDOT:PSS flexible electrode optimal mass ratio and thickness.

Embodiment 3

[0053] Such as Figure 4 As shown, a solar cell device described in this embodiment includes a substrate, a bottom electrode, a hole transport layer, an active layer, an electron transport layer, and a top electrode stacked from bottom to top, wherein the bottom electrode adopts Mxenes-PEDOT:PSS Composite flexible electrodes. The substrate is glass or flexible polymer material, including but not limited to PET, PES or PEN, the top electrode can be metal, including but not limited to Ag, Cu, Al, or a non-metallic electrode with a work function of less than 5.0 eV, and the active layer is Inorganic thin film materials or organic small molecules and polymer materials or perovskite materials, the active layer has good light absorption, good charge separation and transport performance, and the main material of the electron transport layer has an electron mobility greater than 10 -5 cm 2 v -1 the s -1 , and an N-type organic or inorganic semiconductor material that matches the e...

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Abstract

The invention relates to the technical field of solar cells, and particularly relates to an Mxenes-PEDOT:PSS composite flexible electrode. The Mxenes-PEDOT:PSS composite flexible electrode is preparedfrom an Mxenes-PEDOT:PSS composite material by means of one of the following modes: spin coating, blade coating, silk-screen printing, ink-jet printing and film transfer printing. The invention further relates to a solar cell device. The solar cell device comprises a substrate, a bottom electrode, an active layer and a top electrode which are stacked from bottom to top, wherein one of the bottomelectrode and the top electrode adopts the Mxenes-PEDOT:PSS composite flexible electrode. According to the technical scheme, the effect of forming a novel flexible electrode of the solar cell is achieved through a means or scheme of compounding an Mxenes material (two-dimensional transition metal carbide, nitride or carbonitride) and a PEDOT:PSS material.

Description

technical field [0001] The invention relates to the technical field of solar cells, in particular to a Mxenes-PEDOT:PSS composite flexible electrode and a solar cell device. Background technique [0002] With the deteriorating global climate and the continuous consumption of non-renewable energy, it is imminent for people to utilize clean and renewable energy. Solar energy is a kind of green renewable energy, which has attracted much attention due to its advantages of cleanness, large reserves and wide distribution. Among its applications, solar cells that convert solar energy into electrical energy have become a research hotspot in the scientific community of various countries and a focus of industrial development. [0003] After decades of development, multi-component compound thin-film solar cells, organic solar cells and perovskite solar cells have gradually been developed. Such as figure 1 Shown is the current popular solar cell device structure, which includes a sub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0224H01L31/18H01L31/042H01L51/44H01L51/00
CPCH01L31/022425H01L31/1876H10K71/611H10K71/60H10K30/81H10K30/00Y02E10/549Y02P70/50
Inventor 宋嘉兴李在房江悦胡林徐之光
Owner JIAXING UNIV
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