SKU: 22687743550

CVD Graphene on sapphire substrate 1cmx1cm

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Description

CVD Graphene on sapphire substrate 1cmx1cmProduct Name Name: CVD Graphene on sapphire substrate 1cmx1cm Product Overview The process of preparing graphene by CVD mainly includes three important influencing factors: substrate, precursor, and growth conditions. Among them, the substrate is an important condition for the growth of graphene. Currently, 8 10 transition metals (such as Fe, RuCoRhIrNiPdPtCuAu And alloys (such as Co Ni, Au Ni, Ni Mo, stainless steel). The mechanism of preparing

Product Name

Name:CVD Graphene on sapphire substrate 1cmx1cm


Product Overview

 

The process of preparing graphene by CVD mainly includes three important influencing factors: substrate, precursor, and growth conditions. Among them, the substrate is an important condition for the growth of graphene. Currently, 8-10 transition metals (such as Fe, Ru,Co,Rh,Ir,Ni,Pd,Pt,Cu,Au), And alloys (such as Co Ni, Au Ni, Ni Mo, stainless steel). The mechanism of preparing graphene by CVD varies among different substrate materials, mainly divided into two preparation mechanisms: carburization and carbon deposition mechanism, which involves the infiltration of cracked carbon into the substrate at high temperatures and the formation of graphene on the surface during rapid cooling; The surface catalytic mechanism refers to the formation of graphene on the surface of carbon after cracking at high temperatures when it comes into contact with a specific metal (such as copper), and protects the sample from further deposition of thin films. Therefore, this mechanism is more likely to form single-layer graphene.

In practical applications, the synthesis method of CVD graphene film may vary depending on specific experimental requirements and conditions. Researchers typically optimize and adjust the synthesis process based on target performance and application scenarios. Meanwhile, new synthesis methods and technologies are constantly developing and exploring to improve the quality and performance of graphene films.

Usually, graphene is first grown on a metal substrate, then spin coated with PMMA and transferred onto substrates such as silicon oxide, quartz, glass, PET, or copper mesh. One step transfer of graphene film can be directly released into water. After removing the target substrate, soak it in acetone to remove PMMA for use.


Technical Parameter

 

Size: 1cm x 1 cm

Number of layers: Single layer, 2 layers, 3-5 layers,6-8 layers  

Note: Raman testing on silicon oxide substrate

 

Product Features

 

High quality: with high purity and crystallinity;

Good electrical performance: high carrier mobility and low resistivity;

High transparency: has good transparency for visible light;

High mechanical strength: has good flexibility and tolerance;

Good chemical stability: exhibits good stability at room temperature.


Application Fields

 

Electronic devices: such as field-effect transistors, capacitors, etc;

Optical components: transparent conductive films, touch screens, etc;

Sensors: chemical sensors, biosensors, etc;

Energy sector: such as solar cells, supercapacitors, etc;

Composite materials: Composite with other materials to enhance performance.


Related Information

Please e-mail for the detailed characterization data.

E-mail:[email protected]

 

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SKU: 22687743550

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Jazzie
Birmingham, US
★★★★★ 5
Nice couch for the price
Color: Black, Size: 7 Seat, Color: Black, Size: 7 Seat
Nice and firm I was able to put it up by myself in about three hours. It is really cute The material is soft. I really like it. It was super easy to put together. It came in 4 different boxes, I was worried because people said they got the boxes on different days luckily, I got the whole couch the same day and put together that night. I’m happy with this purchase. Can’t wait to sit on it and watch TV. I just wanna give it a few days to let the seat cushions recover.
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Reviewed in the United States on May 24, 2026
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kayla c
Pawtucket, US
★★★★★ 5
Love the storage and pull-out
Color: Dark Grey, Size: 7 Seat, Color: Dark Grey, Size: 7 Seat
The size is great and fits nicely in the corner without feeling too bulky, but still has plenty of seating. The dark grey color looks clean in person and matches my space really well — not too light, not too dark. The pull-out part is honestly one of my favorite features. It slides out pretty smoothly and turns into a big lounging area or bed. I’ve already used it to relax and watch TV and it’s really comfortable. The storage compartment is also bigger than I expected — I can fit blankets and a few extra things in there easily, which helps keep everything more organized. Comfort-wise, I’d say it’s medium-firm. Not super soft like a cloud couch, but still comfortable enough for everyday use. The cushions seem to hold their shape pretty well so far. Assembly took a bit of time and it’s easier with two people, but overall it wasn’t too complicated. Once it’s set up, it feels pretty sturdy. If I had to nitpick, the cushions do shift a little after sitting for a while, so you may need to adjust them occasionally. But for the price, I think that’s pretty normal.
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Reviewed in the United States on April 29, 2026
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Jennifer Weddle
Phoenix, US
★★★★★ 4
very nice for the money
Color: Dark Grey, Size: 5 Seat, Color: Dark Grey, Size: 5 Seat
Very comfy. The color is perfect. The back pillows do shift when leaning against them but a throw pillow or two helps comfort. The material is soft. And it was fairly easy to assemble with 2 people.
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Reviewed in the United States on June 1, 2026
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AQ
Massapequa, US
★★★★★ 5
Fast, Easy and Value for Money
Fast and Easy. Value for money. Highly recommended
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Reviewed in the United States on May 5, 2026
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Los Angeles, US
★★★★★ 5
quick response.
Good experience.
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Reviewed in the United States on April 6, 2026

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