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A kind of preparation method and application of antimony selenium sulfide thin film

A technology of antimony selenium sulfide and antimony sulfide, which is applied in the field of preparation of antimony selenium sulfide thin films and can solve problems involving organic solvents and the like

Active Publication Date: 2021-07-06
UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two methods get Sb 2 (S, Se) 3 The efficiency of solar cells based on solar cells is high, but organic solvents are involved in the preparation process

Method used

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  • A kind of preparation method and application of antimony selenium sulfide thin film
  • A kind of preparation method and application of antimony selenium sulfide thin film
  • A kind of preparation method and application of antimony selenium sulfide thin film

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preparation example Construction

[0033] Aiming at the current situation of the preparation of antimony selenium sulfide thin films, this application provides a preparation method for antimony selenium sulfide thin films. The method uses a hydrothermal method to synthesize antimony selenium sulfide thin films. The cost of raw materials is low, the method is simple, and the quality of antimony selenium sulfide thin films is higher. Specifically, the embodiment of the present invention discloses a method for preparing an antimony selenium sulfide thin film, comprising the following steps:

[0034] Mix antimony potassium tartrate, sulfur source and selenium source, carry out hydrothermal reaction in a closed environment, and obtain a selenium sulfide antimony precursor film after drying;

[0035] The antimony selenium sulfide precursor film is annealed to obtain the antimony selenium sulfide thin film.

[0036] In the process of preparing antimony selenium sulfide thin film, the present application first selects r...

Embodiment 1

[0045] Mix 0.2671g antimony potassium tartrate, 0.7946g sodium thiosulfate, and 0-70mg selenourea into a 50ml reactor liner containing 40ml water, stir evenly until the solution turns yellow, and place the CdS-deposited FTO glass substrate on the into the above mixed solution; finally, seal the autoclave and place it in an oven and heat it to 135°C for 2 hours, then cool it down to room temperature naturally; after the autoclave is opened, the antimony selenium sulfide precursor film is rinsed with water and ethanol, and then blown with nitrogen. dry, then place the precursor film in a glove box (N 2 environment) at 350°C for 10 min to prepare antimony selenium sulfide thin films with different Se / S ratios.

[0046] The FTO / CdS / Sb that utilizes X-ray powder diffractometer to obtain in embodiment 1 2 (S, Se) 3 The film was analyzed by X-ray diffraction, and its X-ray diffraction spectrum was obtained as figure 1 as shown, figure 1 For sample Sb 2 S 3 (a) and different amo...

Embodiment 2

[0051] Mix 0.2671g antimony potassium tartrate, 0.7946g sodium thiosulfate and 20mg selenourea into a 50ml reactor liner containing 40ml water, stir until the solution turns yellow, put the CdS-deposited FTO glass substrate into the In the above mixed solution; finally, seal the autoclave and place it in an oven to heat to 100°C-170°C for 2 hours, and then naturally cool to room temperature; Blow dry, then put the precursor film in the glove box (N 2 environment) at 350° C. for 10 minutes to prepare antimony selenium sulfide thin films with different hydrothermal temperatures.

[0052] The FTO / CdS / Sb that utilizes X-ray powder diffractometer to obtain in embodiment 2 2 (S, Se) 3 The film was analyzed by X-ray diffraction, and its X-ray diffraction spectrum was obtained as Figure 4 as shown, Figure 4 In this embodiment, the hydrothermal temperature is respectively (a) 100 ℃, (b) 120 ℃, (c) 135 ℃, (d) 150 ℃ and (e) Sb of 170 ℃ 2 (S, Se) 3 The XRD pattern of the film, F r...

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Abstract

The invention provides a preparation method of an antimony selenium sulfide thin film, comprising the following steps: mixing antimony potassium tartrate, a sulfur source and a selenium source, performing a hydrothermal reaction in a closed environment, and obtaining a selenium antimony sulfide precursor film after drying; The antimony selenium sulfide precursor film is annealed to obtain the antimony selenium sulfide thin film. The application also provides a solar cell device based on the antimony selenium sulfide film. The invention synthesizes a dense and flat selenium antimony sulfide thin film in a hydrothermal system, the cost of raw materials used is low, the reaction temperature is low, no organic solvent is needed, and the preparation process is simple and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of antimony selenium sulfide nanomaterials, in particular to a preparation method and application of an antimony selenium sulfide thin film. Background technique [0002] Antimony-based chalcogenides (Sb 2 (S, Se) 3 ) has a high light absorption coefficient in the visible light range (>10 5 cm -1 ), and good stability, environmental protection and non-toxic constituent elements have received widespread attention. [0003] In order to obtain high quality Sb 2 (S, Se) 3 For thin films, a large number of synthetic methods have been developed. Zhang et al. controlled the Sb formed by the ethylenediamine solution of selenium and the CBD method 2 S 3 Diffusion reaction between membranes synthesizes Sb with Se gradient distribution 2 (S 1- x Se x ) 3 thin film (Zhang Y, Li J M. Solar RRL, 1, 1700017 (2017)); 2 S 3 Solar cells are equivalent, and the short-circuit current density is higher than tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C17/22C01G30/00H01L31/032H01L31/04
CPCC01G30/008C01P2002/72C01P2004/03C01P2004/20C01P2006/40C03C17/22C03C2217/288C03C2218/111C03C2218/32H01L31/032H01L31/04Y02E10/50
Inventor 陈涛唐荣风王小敏朱长飞
Owner UNIV OF SCI & TECH OF CHINA
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