Solar battery based on inorganic bulk heterojunction and preparation method thereof

A technology of solar cells and bulk heterojunctions, applied in circuits, photovoltaic power generation, electrical components, etc., can solve problems such as unfavorable energy transfer of absorbing materials, unsatisfactory interface contact, unfavorable energy transfer, etc., and achieve great application value and equipment requirements. Low effect and simple preparation method

Inactive Publication Date: 2013-10-23
INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
View PDF2 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the method of depositing quantum dots is simple and can greatly reduce the cost of battery preparation, these technologies also have some shortcomings: for example, (1) Quantum dots and TiO 2 -The interfacial contact between NA is not ideal, whic

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Solar battery based on inorganic bulk heterojunction and preparation method thereof
  • Solar battery based on inorganic bulk heterojunction and preparation method thereof
  • Solar battery based on inorganic bulk heterojunction and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0045] Example 1: TiO 2 Preparation of nanorod array.

[0046] (1-1) Preparation of nanorod array:

[0047] First use 1:1 concentrated HCl-water mixture and Zn powder to etch FTO on FTO conductive glass (FTO thickness is 400 nm, 14 Ω / □) to 16 × 4 mm 2 The thin strips; then ultrasonically cleaned with acetone, isopropanol, and ultrapure water, and dried to obtain treated FTO conductive glass.

[0048] Dissolve 30 mL of concentrated hydrochloric acid in 30 mL of deionized water, stir well, then add 1 mL of butyl titanate and stir for 15 minutes to obtain a reaction solution; place the treated FTO conductive glass face down in the air and place it in 100 mL high pressure In the autoclave, add the pre-prepared reaction solution to the autoclave, seal it and react in an oven at 180°C for 2.5 hours; after the autoclave is cooled to room temperature, take out the sample and rinse with deionized water several times to obtain TiO 2 The initial product of nanorod array; TiO 2 The initial produ...

Example Embodiment

[0051] Example 2: Sb 2 S 3 / TiO 2 -Preparation of NA composite membrane.

[0052] (2-1) TiO 2 Preparation of nanorod array: the same as in Example 1.

[0053] (2-2) Sb 2 S 3 / TiO 2 -Preparation of NA composite membrane:

[0054] Put 360 mL of 0.28 M Na 2 S 2 O 3 The solution was cooled in an ice water bath for 20 minutes, after the temperature dropped to about 5 ℃, then the TiO 2 The nanorod array is placed face down on the Na 2 S 2 O 3 In solution; add Na to Na at a rate of 2 mL / min 2 S 2 O 3 Add 40 mL of 0.29 M SbCl dropwise to the solution 3 Acetone solution, keep the Na 2 S 2 O 3 Solution; After the dripping is completed, the reaction is allowed to continue for 6 hours under the condition of ice-water bath cooling to proceed to Sb 2 S 3 Chemical bath deposition. After deposition, remove the TiO 2 The nanorod array sample was rinsed with deionized water several times, and then dried with nitrogen to obtain an orange-red initial product; 2 Annealing under normal pressure at 400 ℃ f...

Example Embodiment

[0058] Example 3: Sb 2 S 3 / TiO 2 -Preparation of NA bulk heterojunction solar cells.

[0059] (3-1) TiO 2 Preparation of nanorod array: the same as in Example 1.

[0060] (3-2) Sb 2 S 3 / TiO 2 -Preparation of NA composite membrane: the same as in Example 2.

[0061] (3-3) Sb 2 S 3 / TiO 2 -Preparation of NA bulk heterojunction solar cells.

[0062] Using freshly distilled chlorobenzene as the solvent, prepare a MEH-PPV solution with a concentration of 5 mg / mL, and stir at room temperature for 24 hours. Disperse 150 μL of MEH-PPV solution evenly in Sb 2 S 3 / TiO 2 -NA composite film, spin coating (1000 rpm, 60 seconds) to deposit MEH-PPV on Sb 2 S 3 / TiO 2 -NA composite membrane; after vacuum drying at 40 ℃ for 6 hours, heat treatment at 150 ℃ for 10 minutes under the protection of nitrogen. 2 S 3 / TiO 2 A MEH-PPV film with a thickness of about 40 nm is formed on the NA composite film as an electron blocking layer. Spin-coating a mixture of PEDOT:PSS and isopropanol (volume ratio 1:1)...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Lengthaaaaaaaaaa
Diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a solar battery based on an inorganic bulk heterojunction and a preparation method thereof. The battery comprises a glass substrate, an FTO (fluorine-doped tin oxide) layer which is used as a positive electrode, a heterojunction composite film layer consisting of an Sb2S3 (stibnite) block and a TiO2 (titanium dioxide) nano-bar array, a polymer MEH-PPV electron barrier layer, a PEDOT: PSS hole transferring layer and an Au (gold) film layer as a battery negative electrode. The preparation method of the battery is simple, and the battery has a spectrum response range of 300 nm to 750 nm; and when an optical active layer of the battery stays at an illumination state, conversion efficiency of the battery can reach 5.58 percent.

Description

technical field [0001] The invention relates to the field of solar cells and preparation methods thereof, in particular to a solar cell based on an inorganic heterojunction and a preparation method thereof. Background technique [0002] With the rapid consumption of fossil resources such as coal and petroleum and the resulting environmental pollution and greenhouse effect, the exploration and utilization of renewable energy has become one of the most urgent problems that human beings need to solve in the 21st century. Converting solar energy into electrical energy and realizing photovoltaic power generation is an important way to utilize renewable energy. The most critical part of the photovoltaic power generation system is the device that captures and converts solar energy, that is, the solar cell. Exploring new material systems, improving cell efficiency and stability, and reducing cell cost have become the main challenges facing solar cell research and the development of...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H01L31/072H01L31/0352H01L31/032H01L31/18
CPCY02E10/50Y02P70/50
Inventor 邱泽亮王命泰刘长文吴璠张慧
Owner INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products