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A broadband light-absorbing layer film for organic solar cells based on peanut-shaped gold-copper sulfide core-shell nanorods and its preparation method

A technology of solar cells and light absorbing layers, applied in circuits, electrical components, electric solid devices, etc., to achieve the effects of strong absorption efficiency and wide frequency band of light absorption

Inactive Publication Date: 2019-10-08
JIANGXI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, metal nanorod composites with broadband light absorption, especially strong light absorption, are rarely reported in the literature, and peanut-shaped gold-copper sulfide core-shells with broadband strong light absorption based on gold nanorods and copper sulfide Research on nanorods and their use as light-absorbing layers in organic solar cells, no reports

Method used

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  • A broadband light-absorbing layer film for organic solar cells based on peanut-shaped gold-copper sulfide core-shell nanorods and its preparation method
  • A broadband light-absorbing layer film for organic solar cells based on peanut-shaped gold-copper sulfide core-shell nanorods and its preparation method
  • A broadband light-absorbing layer film for organic solar cells based on peanut-shaped gold-copper sulfide core-shell nanorods and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1: Preparation of gold-containing nanorod solution

[0041] Step (1): 0.25mL concentration of 0.01M tetrachloroauric acid (HAuCl 4 4H 2 0) join 10mL concentration and be 0.1M cetyltrimethylammonium bromide (CTAB) solution and form mixed solution, add 0.6mL concentration in above-mentioned mixed solution in the stirring process and be the sodium borohydride of 0.01M ( Na 2 BH 4 ) solution and continued to stir for 2 min and then stood at room temperature for 2 h to obtain a solution containing gold seeds. The sodium borohydride solution was prepared on the spot during the experiment and placed in a refrigerator at 4° C. for 5 minutes before use.

[0042] Step (2): get 40mL concentration and be the cetyltrimethylammonium bromide solution of 0.1M, in this solution, add 2.0mL concentration successively in this solution, be the tetrachloroauric acid solution of 0.01M, 100uL concentration be 0.01M silver nitrate (AgNO 3 ) solution, 0.8mL of hydrochloric acid ...

Embodiment 2

[0044] Example 2: Preparation of peanut-shaped gold-copper sulfide core-shell nanorod solution

[0045] Step (1): Take 4mL of the solution containing gold nanorods diluted in Example 1, add 0.4mL concentration of 0.1M ascorbic acid solution (AA), 0.4mL concentration of 0.1M cyclohexamethylenetetrafluoroethylene Amine (HMN) solution and 16uL concentration of 0.1M thioacetamide (TAA) solution, and then add 8uL concentration of 0.1M copper nitrite (Cu(NO 3 ) 2 ) solution was placed at 80° C. for 7 hours to obtain a solution containing peanut-shaped gold-copper sulfide core-shell nanorods.

[0046] Step (2): Centrifuge the solution containing peanut-shaped gold-copper sulfide core-shell nanorods prepared in step (1) for 3 times, remove the supernatant after each centrifugation, and obtain purified peanut-shaped gold-containing A solution of gold-copper sulfide core-shell nanorods was then dispersed into 1 mL of deionized water. The centrifugal force used is 2500g, and the centr...

Embodiment 3

[0049] Example 3: Preparation of broadband light-absorbing layer film for organic solar cells based on peanut-like gold-copper sulfide core-shell nanorods

[0050] Step (1): Spin-coat poly(3,4-ethylenedioxythiophene: polystyrene sulfonic acid (PEDOT:PSS) (Al 4083) onto a glass sheet (A) deposited with an anodized indium tin oxide film (B) ), the spin-coating speed was 3000rpm, the spin-coating time was 50s, and then annealed at 120°C for 30min to obtain a PEDOT:PSS buffer layer (C) with a thickness of 30nm.

[0051] Step (2): The purified peanut-shaped gold-copper sulfide core-shell nanorod solution prepared in Example 2 is spin-coated onto poly3,4-ethylenedioxythiophene: polystyrenesulfonic acid buffer layer (C) and then annealed at 150° C. for 10 min. The above process was repeated three times to obtain a peanut-shaped gold-copper sulfide core-shell nanorod broadband light-absorbing layer (D) with a thickness of 10 nm. The spin coating speed is 600rpm.

[0052] Step (3): P...

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Abstract

The invention provides a broadband light-absorbing layer film of organic solar cells based on peanut-shaped gold-copper sulfide core-shell nanorods and a preparation method thereof. The organic solar cell is mainly prepared by chemical reaction, physical spin coating technology and annealing treatment. Its structure from bottom to top is glass slide (A), anodized indium tin substrate (B), poly 3, 4‑ethylenedioxythiophene: polystyrenesulfonic acid buffer layer (C), peanut-like gold‑copper sulfide core-shell nanorod broadband light absorption layer (D), poly3‑hexylthiophene: [6,6]‑ Phenyl C61-methyl butyrate active layer (E) and metal electrode (F); the broadband light-absorbing layer is composed of peanut-shaped gold-copper sulfide core-shell nanorods, and its light absorption band spans the entire visible light region and Near-infrared region (400‑1350nm), and the full width at half maximum exceeds 500nm. The preparation method of the invention is simple, easy to operate and highly repeatable.

Description

technical field [0001] The invention relates to a broadband light-absorbing layer film of an organic solar cell based on a peanut-shaped core-shell nanorod, in particular to a broadband light-absorbing layer film of an organic solar cell based on a peanut-shaped gold-copper sulfide core-shell nanorod and its The preparation method belongs to the field of new energy and new materials. Background technique [0002] Organic solar cells (OSCs) use organic substances with photosensitive properties as semiconductor materials, and generate voltage and current through photovoltaic effect, so as to realize the function of solar power generation. This unique characteristic makes it have broad application prospects in the field of photovoltaic technology, such as solar power plants, energy supply of portable electronic devices, semi-transparent solar cell windows, etc., thus becoming one of the most active research hotspots in the field of new energy and new materials. one. [0003] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/42H01L51/44H01L51/46H01L51/48
CPCH10K30/00H10K30/80Y02E10/549
Inventor 刘桂强刘正奇汤莉刘怡陈检黄振平
Owner JIANGXI NORMAL UNIV
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