Organic/inorganic hybridization solar cell based on zinc oxide (ZnO) homogeneous core-shell structure nanorod array and production method thereof

A nanorod array and solar cell technology, applied in the field of nanomaterials and energy, to achieve the effects of improved conversion efficiency, increased open circuit voltage, and low equipment requirements

Inactive Publication Date: 2012-07-04
INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Hybrid solar cells composed of homogeneous core-shell nanorod arrays or organically m

Method used

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  • Organic/inorganic hybridization solar cell based on zinc oxide (ZnO) homogeneous core-shell structure nanorod array and production method thereof
  • Organic/inorganic hybridization solar cell based on zinc oxide (ZnO) homogeneous core-shell structure nanorod array and production method thereof
  • Organic/inorganic hybridization solar cell based on zinc oxide (ZnO) homogeneous core-shell structure nanorod array and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1: Preparation of ZnO nanorod arrays.

[0044] (1-1) Preparation of ZnO dense film:

[0045] First, etch the ITO on the ITO conductive glass (ITO thickness is 100-120nm, ≤15Ω / □) with concentrated hydrochloric acid and Zn powder to 12×3mm 2 Thin strips; ultrasonically cleaned with acetone, isopropanol, and ultrapure water, and dried with dry nitrogen before use.

[0046] 0.16 g of zinc acetate [Zn(CH 3 COO) 2 2H 2 O] was dissolved in 1 g of water, and after complete dissolution, 4 ml of absolute ethanol was added, and then 100 μl of glacial acetic acid was added dropwise; the mixture was stirred at room temperature for 2 hours to obtain a colorless, clear and transparent solution. The above solution was spin-coated on ITO glass (2000 rpm, 60 seconds), repeated four times to obtain a uniform film, and then calcined in a muffle furnace at 350° C. for 20 minutes to obtain a dense ZnO film.

[0047] (1-2) Preparation of ZnO nanorod arrays:

[0048] The ITO glas...

Embodiment 2

[0051] Example 2: Preparation of ZnO-NR-QD homogeneous core-shell nanorod arrays.

[0052] (2-1) Preparation of ZnO nanorod array: Same as Example 1.

[0053] (2-2) Preparation of ZnO-NR-QD homogeneous core-shell nanorod arrays:

[0054] At room temperature, the ZnO nanorod array was placed in a 100 mL polytetrafluoroethylene-lined autoclave filled with 80 mL of zinc acetate ethanol solution with a concentration of 0.02 mol / L, sealed and reacted in an oven at 95 °C for 2.5 hours. After the kettle was cooled to room temperature, the sample was taken out and rinsed with absolute ethanol, and dried with nitrogen to obtain a ZnO-NR-QD homogeneous core-shell nanorod array (ie, ZnO-NR-QD-NA);

[0055] (2-3) Characterization of the product:

[0056] XRD result (attached Figure 4 ) showed that the composition of the product obtained after the ZnO nanorod array was reacted in an autoclave was only wurtzite structure ZnO, and showed polycrystalline diffraction characteristics; SEM res...

Embodiment 3

[0057] Example 3: Preparation of N719-modified ZnO-NR-QD homogeneous core-shell nanorod arrays.

[0058] (3-1) Preparation of ZnO nanorod array: Same as Example 1.

[0059] (3-2) Preparation of ZnO-NR-QD nanorod array with homogeneous core-shell structure: same as Example 2.

[0060] (3-3) Preparation of N719-modified ZnO-NR-QD homogeneous core-shell nanorod arrays:

[0061] At room temperature, the ZnO-NR-QD homogeneous core-shell structure nanorod array was placed in a container containing 80mL with a concentration of 5×10 -6 mol / L zinc acetate ethanol solution in a 100mL autoclave lined with polytetrafluoroethylene, sealed and reacted in an oven at 80°C for 8 hours, after the autoclave was cooled to room temperature, the sample was taken out and rinsed with absolute ethanol, nitrogen Blow dry to obtain the ZnO-NR-QD homogeneous core-shell structure nanorod array (ie, ZnO-NR-QD-N719-NA) modified by N719 molecules;

[0062] (3-4) Characterization of the product:

[0063] ...

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Abstract

The invention discloses an organic/inorganic hybridization solar cell and a production method thereof, wherein a zinc oxide (ZnO) nanorod array ZnO-sodium (Na) which is vertically grown on an indium tin oxide (ITO) lining base is utilized as a template, a nanorod array ZnO-natural rubber (NR)-quantum dot (QD)-NA which takes a ZnO nanorod as a core and a polycrystal film which consists of ZnO quantum dots as an inorganic finishing shell layer is prepared, an organic matter N719 is utilized to modify the ZnO-NR-QD-NA, so a homogeneous core-shell structure nanorod array ZnO-NR-QD-N719-NA which is modified by the N719 is obtained, a polymer and the ZnO-NR-QD-N719-NA are compounded to produce a finished product, the open-circuit voltage of the cell reaches 0.62V, the short-circuit current of the cell is 3.79mA/cm<2>, and the conversion efficiency of the cell reaches 0.84%. Compared with a phenylacetylene (MEH-PPV)/ZnO-NA cell, the open-circuit voltage of the cell is improved by 88%, the short-circuit current is increased by 192%, and the conversion efficiency is improved by 425%.

Description

Technical field: [0001] The invention relates to the fields of nanomaterials and energy, and specifically relates to an organic / inorganic hybrid solar cell and a preparation method thereof. Background technique: [0002] The polymer solar cell composed of organic conjugated polymer as electron donor (D) and inorganic nanocrystal as electron acceptor (A) is a new type of organic / inorganic hybrid solar cell. Due to its advantages of both polymers (light weight, good flexibility, easy large-area and low-cost film formation, etc.) An important research object in valence solar cells. The research results show that high-performance battery devices need to meet the following conditions: large-area D / A interface for separating excitons, continuous charge transport channels, and stable battery material condensed matter structure. Usually, inorganic semiconductor nanoparticles are mixed with organic polymers in an organic solvent to achieve simple blending, and then these simple ble...

Claims

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Application Information

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IPC IPC(8): H01L51/46H01L51/42H01L51/48
CPCY02E10/549
Inventor 吴璠王命泰
Owner INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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