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Tin-containing perovskite solar cell taking AuNCs doped PEDOT: PSS as hole transport layer and preparation method thereof

A technology of hole transport layer and solar cell, which is applied in the direction of circuits, photovoltaic power generation, electrical components, etc., to enhance the absorption of light, promote the efficiency of hole extraction and transmission, and improve the effect of interface interaction

Pending Publication Date: 2021-11-26
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For inverted perovskite solar cells, HTL plays an important role in charge extraction, transport and affecting interfacial interactions, although PEDOT:PSS as HTL is widely used in PSCs containing tin, but by further modification of PEDOT:PSS , there is still a huge room for improvement in device performance

Method used

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  • Tin-containing perovskite solar cell taking AuNCs doped PEDOT: PSS as hole transport layer and preparation method thereof
  • Tin-containing perovskite solar cell taking AuNCs doped PEDOT: PSS as hole transport layer and preparation method thereof
  • Tin-containing perovskite solar cell taking AuNCs doped PEDOT: PSS as hole transport layer and preparation method thereof

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Effect test

Embodiment 1

[0041] In this embodiment 1, the structure of the tin-containing perovskite solar cell device with AuNCs doped with PEDOT:PSS as the hole transport layer is: ITO / PEDOT:PSS-AuNCs / FA 0.7 MA 0.3 sn 0.5 Pb 0.5 I 3 / C 60 / BCP / Cu.

[0042] The preparation process of the above-mentioned tin-containing perovskite solar cells with AuNCs doped with PEDOT:PSS as the hole transport layer is as follows:

[0043] Step 1. Ultrasonic cleaning with ITO glass cleaner, deionized water, acetone, and isopropanol for 20 minutes in sequence; then dry the anode substrate with nitrogen;

[0044] Step 2, carry out 10 minutes of plasma surface treatment on the surface of the cleaned and dried anode substrate (ITO), this treatment method utilizes the plasma produced by the Plasma cleaning machine to clean the residual organic matter on the ITO surface, and can improve the work function of the ITO surface at the same time ;

[0045] Step 3, spin coating AuNCs-doped PEDOT:PSS solution on the surface...

Embodiment 2

[0056] The preparation process of a tin-containing perovskite solar cell with AuNCs doped PEDOT:PSS as the hole transport layer is as follows:

[0057] Step 1. Ultrasonic cleaning with ITO glass cleaner, deionized water, acetone, and isopropanol for 15 minutes in sequence; then dry the anode substrate with nitrogen;

[0058] Step 2, carry out 10 minutes of plasma surface treatment on the surface of the cleaned and dried anode substrate (ITO), this treatment method utilizes the plasma produced by the Plasma cleaning machine to clean the residual organic matter on the ITO surface, and can improve the work function of the ITO surface at the same time ;

[0059] Step 3, spin-coating AuNCs-doped PEDOT:PSS solution on the surface of the ITO substrate treated in step 2; the hole transport layer is formed by doping PEDOT:PSS and AuNCs, wherein the mass percentage of AuNCs is 0.5%. The preparation process of AuNCs aqueous solution is as follows: under the condition of full stirring, H...

Embodiment 3

[0066] The preparation process of a tin-containing perovskite solar cell with AuNCs doped PEDOT:PSS as the hole transport layer is as follows:

[0067] Step 1. Ultrasonic cleaning with ITO glass cleaner, deionized water, acetone, and isopropanol for 30 minutes in sequence; then dry the anode glass substrate with nitrogen;

[0068] Step 2, carry out 5 minutes of plasma surface treatment on the surface of the cleaned and dried anode substrate (ITO), this treatment method utilizes the plasma produced by the Plasma cleaning machine to clean the residual organic matter on the ITO surface, and can improve the work function of the ITO surface at the same time ;

[0069] Step 3, spin-coating AuNCs-doped PEDOT:PSS solution on the surface of the ITO substrate treated in step 2; the hole transport layer is formed by doping PEDOT:PSS and AuNCs, wherein the mass percentage of AuNCs is 2%. The preparation process of AuNCs aqueous solution is as follows: under the condition of sufficient st...

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Abstract

The invention discloses a tin-containing perovskite solar cell with AuNCs doped PEDOT: PSS as a hole transport layer and a preparation method thereof. The perovskite cell device comprises an anode substrate, a hole transport layer, a tin-containing perovskite active layer, an electron transport layer, a hole barrier layer and a cathode layer which are stacked in sequence; the hole transport layer is prepared from an AuNCs doped PEDOT: PSS material, and the doping mass percent of the AuNCs is 0.5%-2%. According to the invention, the PEDOT: PSS is doped with the chain AuNCs with a strong coupling plasma nanostructure, high light transmittance and excellent stability as the hole transport layer to prepare the cell device; firstly, due to the introduction of AuNCs, the conductivity of PEDOT: PSS can be improved, so that the hole extraction, transmission and collection efficiency of the device is effectively promoted; secondly, the AuNCs-doped PEDOT: PSS can improve the interfacial interaction with the active layer so as to reduce the interfacial charge recombination; finally, the light scattering of the plasma and some near-field coupling effects of the AuNCs can promote more light to be captured, and the light absorption of the perovskite is enhanced.

Description

technical field [0001] The invention relates to the technical field of perovskite solar cells, in particular to a tin-containing perovskite solar cell with AuNCs doped with PEDOT:PSS as a hole transport layer and a preparation method thereof. Background technique [0002] Perovskite solar cells (PSCs) have attracted extensive attention as the most promising new solar cells due to their excellent properties such as direct bandgap, high light absorption coefficient, long carrier lifetime, and low fabrication cost. Since the first report in 2009, with the rapid development of pure lead halide PSCs, the power conversion efficiencies (PCEs) of PSCs have increased significantly to the current record of 25.5%. [0003] However, among the currently commonly used perovskite materials, the heavy metal lead is environmentally unfriendly and may cause harm to human health. In view of this, high-performance PSCs that can completely or partially replace lead have become a research hotspot...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/42H01L51/46H01L51/48
CPCH10K71/12H10K85/1135H10K30/40Y02E10/549
Inventor 宋嘉兴李在房王冠男尹新星苏振胡林金英芝
Owner JIAXING UNIV
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