Hand rubbing nuclear fusion live in the wilderness

Chapter 293 The technology most beneficial to Huaguo

The special crystalline structure can absorb most of the sunlight energy.

As soon as these two concepts came out, they immediately set off a storm in the hearts of photovoltaic power generation experts and material science experts from all over the world.

Different from other experts, these newly transferred experts are either experts in photovoltaic power generation or optical materials.

No one understands technologies such as photovoltaics, solar cells and thin films for solar power better than them.

Silicon-based solar power generation materials, whether it is solar cells or solar thin films, have not been considered in this regard before.

When the concept of solar power generation emerged, corresponding scientists proposed to make solar panels into various shapes such as M, Z, or pyramid, so as to maximize the area that can receive light in a limited area. .

But the final experimental results told them that this is a completely unfeasible path.

Not only is the technical difficulty required for manufacturing higher, but also the preparation of solar panels or films into various shapes does not improve the light concentration effect and photoelectric conversion rate.

Even some power generation panels have the problem that the photoelectric conversion efficiency is reduced because the film is prepared at various strange angles.

Since then, there have been no relevant personnel to study this issue.Because this is a road that is confirmed to be unworkable after practice.

However, now, a person far beyond human technological civilization tells them that this path is actually right.

It's just that you haven't found the most suitable direction.

How can this not make them doubt life?
There is also the saying that it can absorb most of the light waves, is it really possible?

You should know that because of the special properties of silicon materials, the light bands absorbed by modern solar panels and thin films basically belong to visible light.

Light waves such as other ultraviolet rays, rays, and special radiation waves are not only unable to absorb for solar panels, but also accelerate the aging of solar cells and reduce their conversion efficiency.

This is also one of the reasons why the current photoelectric conversion rate of solar power generation cannot be improved.

How did this host solve these problems?
The experts who watched the live broadcast were full of various questions, wishing to grab Won from the screen and torture them.

In the simulated space, Han Yuan is step by step processing the materials required for the preparation of 'lanthanum gallium silicon thin film solar thin film power generation panels'.

At this stage, as the technological level of the things he prepares is getting higher and higher, the importance of the dust-free studio will also increase.

Especially various instruments and equipment with high precision and photosensitive components.

These things can only be carried out in a highly clean and dust-free studio.

Otherwise, once the processed material contains various impurities, it will affect the effect of equipment and materials.

For example, if the "distributed Bragg reflector" he prepared before is mixed with a little dust in the periodically arranged active layer and thin film layer, then the whole mirror will be completely useless.

Although the requirements for the 'LaGaSi Thin Film Solar Thin Film Power Generation Panel' prepared this time are not so strict, they still require a dust-free studio for processing.

Therefore, in the chemical laboratory, Won is only a preliminary treatment of basic materials.

The remaining steps will still be carried out in a clean room.

Waiting for the next mission, if the labor problem is solved, it is necessary to upgrade the dust-free studio again.

After all the basic materials were processed, Han Yuan returned to the dust-free studio again.

The first thing to deal with is naturally the substrate.

As the substrate material attached to the LaGaSi composite thin film, the requirements for it are naturally not low.

Various optical and mechanical properties such as light transmission, stability, thermal expansion coefficient, mechanical properties, weather resistance and stress resistance are extremely demanding.

If it is used to build a photovoltaic farm fixed on the ground, it is the best choice to use high-transmittance thin glass as the substrate.

But if it is used on an aircraft, there are more factors to consider.

After all, taking off and landing or encountering turbulence in the air may cause the substrate to break.

Therefore, in the selection of the substrate, Won chose polyester plastic with high light transmission and high flexibility: 'polymethyl methacrylate'.

This is a plastic with excellent optical properties, also known as man-made plexiglass.

Belonging to one of the semiconductor materials, it has excellent light transmission and stability.

In addition, 'polymethyl methacrylate' also has certain conductivity and stable deformation ability.

Under the condition of external force, it can maintain a certain bending deformation ability, as long as the deformation does not exceed 35 degrees, it can completely return to normal by itself.

This is a bit like a memory metal that has been weakened a lot.

However, if the bending exceeds [-] degrees, the back electrode layer, light absorbing layer and other coatings on the substrate will break and lose their function.

Therefore, it is far from enough to have toughness and deformation ability. As a substrate, a certain strength is naturally required.

But since it is called man-made plexiglass, it is naturally not weak in terms of hardness.

'PMMA' is a material that combines the advantages of glass and polyester plastic.

Although it is not as good as the top high-transmittance glass in terms of optical properties such as light transmission, it is also not as good as top plastics in terms of mechanical properties such as flexibility.

But the combination of the two has a wider range of applications.

The most common application is all kinds of satellites.

Because compared with glass substrates, 'polymethyl methacrylate' has better toughness after being molded into various strange shapes, and it will not be damaged by vibration.

After all, when the glass is thin to a certain extent, it is easily damaged, and it may be broken with a slight vibration.

Therefore, although the substrate made of glass has a higher photoelectric conversion rate, its practicality is not so wide, and it is generally only used as a material for a large-scale photovoltaic field.

The treated 'polymethyl methacrylate' is cut and polished into the desired shape by industrial equipment, and then polished to further weaken the thickness and increase the light transmittance of the substrate.

The treated substrate is pre-set aside the place to be etched by coating a protective wax layer on it.

After etching trenches with special chemicals, indium-gallium metal ions are implanted using the 'electrothermal-ion infiltration method' to form gates and channels for the preparation of conductive structures.

After going through the step-by-step process, pieces of transparent substrates appeared in the hands of Won.

These transparent substrates prepared from Won you have different shapes, some are rectangular, and some have a certain curvature.

There are even some surfaces that don't look flat, but also twisted at a certain angle.

There are not many rectangular flat substrates, but many substrates with certain curvatures.

The audience in the live broadcast room has always been not interested in these manufacturing processes, so when Won started to prepare the 'lanthanum gallium silicon thin film solar thin film power generation panels', they left one after another.

Of interest are experts from various countries.

However, these experts are very confused about why the anchor made the substrate like this.

It should be known that the process coating of solar power generation thin film panels is very special. In this way, the final light absorbing layer film is difficult to coat, and it is also difficult to preserve for a long time.

Because as time goes by, the light-absorbing layer film will naturally fall off due to the decrease in adhesion, which greatly reduces the service life.

If the coating film on the flat plate can be used for ten years, then the film with a curvature will reduce the service life to three years due to the molecular tension of the film itself.

The service life has been weakened by more than two-thirds, and it can be said that the performance reduction is extremely exaggerated.

These are the practical results of wasting a lot of money, manpower, material resources and resources in their previous design and construction.

In addition to this, there are various issues such as the fact that angled solar substrates are more difficult to fabricate than flat panels.

These experts naturally couldn't figure out these problems.

Because the South Korean won is prepared all the required templates at one time, and then the other crystal materials are exchanged with technology points.

The reason why the aircraft is designed as a triangular shape is not only to ensure that it can provide a certain lift when taking off, but also because of the symmetry of the triangular shape.

The final skin covering the surface can be made with a minimum amount of preparation, and the rest can be exchanged for technology points.

Thus saving a lot of time.

After all, it takes one year to prepare an aircraft. In the case of insufficient labor force, the most lacking thing is time.

When designing it, Han Yuan looked through hundreds of aircraft in his mind.

Just the scraps of paper that have been designed and planned and discarded can be piled up to several meters high.

The reason why the final shape of the Leluo triangle was finalized is because this shape is the most suitable.

The three sides are equal in length and symmetrical. After being designed in a certain arc, it can provide a certain upward lift during flight and save energy.

And the symmetrical structure is the most convenient way to manufacture various surface skins. Just like a circle, only a small part of the structure needs to be designed and manufactured, and the rest can be exchanged through technology points.

Otherwise, one year may not be enough to build a car, let alone an aircraft that can go to the sky.

As for the problem of service life, it does exist.

The coating and engraving process used in solar power generation thin-film panels will indeed cause the film to fall off due to the unevenness of the substrate and the excessive tension of the film molecules.

But this issue is not within the scope of Won's consideration at all. Let alone three years, it is enough for him to use it for one year.

Three years later, he might be able to build spaceships, so why do he need this crap?
Time passed bit by bit, it took about four days, and Won finally prepared the required substrate.

These substrates have completed the addition of the second part of the back electrode layer, each with ion implantation trenches and metal gates.

Although these two will affect the effective power generation area of ​​the solar power generation film to a certain extent, it is a must.

Only through the back electrode layer can the current converted from the light absorbing layer be gathered and conducted into the lithium-sulfur battery.

After processing the substrate and the back electrode layer, the next step is the most critical step.

Fabrication and coating of light-absorbing layer films.

This step is the decisive factor.

The first two steps, whether it is the preparation of the substrate or the erosion injection of the back electrode layer, can actually be completed by countries at the five permanent levels such as Huaguo and the United States.

Even if there is no such material as 'polymethyl methacrylate', it is possible to use other materials instead.

Besides, 'polymethyl methacrylate' itself evolved from the basic 'polyester material' developed by human scientists.

Highly transparent polyester material, not all countries do not have.

Therefore, the preparation of the 'light-absorbing layer film' and the special hole-like structure in the film are the core technologies.

For this, the Korean won naturally understands.

Now that he has decided to announce it, he will definitely explain these things clearly.

After all, compared to other countries, the solution to the energy problem is the greatest help to Huaguo.

After all, Huaguo is a country with a large population, a large industry, and a large infrastructure
For energy consumption, far more than other countries.

Even Ah San, whose population is 'second only' to Huaguo, is not at the same level in terms of energy consumption.

According to the information released by the national statistics, at the age of 20, Huaguo's annual power generation reached a terrifying 7.7791 trillion kwh.

That is 7.7791 trillion kWh.

In 20 years, the total power generation in the world is 26.8232 trillion kwh.

The power generation capacity of a country in Huaguo is more than one-third.

From this data, we can see how terrible Huaguo is in terms of power consumption.

Oh, by the way, Ah San's population is not much different from that of Huaguo, and may even exceed it.

The 20-year statistically released power generation capacity is 1.5609 trillion kWh, or 1.5609 trillion kilowatt-hours, which is only one-fifth of Huaguo.

Just like this, Ah San still shouted to surpass Huaguo every day.

If you have the ability, you should first solve the problem of electricity consumption for residents.

If it can solve the energy problem for the motherland, South Korean won will naturally take it to heart.

Therefore, the preparation and coating of the light-absorbing layer film, he deliberately put it on a new day to start the preparation, and accompanied it with detailed process explanations.

Won is not worried that other countries can also learn the preparation of 'lanthanum gallium silicon thin film solar thin film power generation panels'.

Because this thing is different from other power generation technologies such as controllable nuclear fusion.

Even the photoelectric conversion rate of 'lanthanum gallium silicon thin film solar thin film power generation panels' can reach 70.00%.

However, it is actually very difficult to use this photovoltaic power generation technology to solve the electricity consumption of a country.

Because of the need for extremely powerful infrastructure and scheduling capabilities.

Still using Ah San as an example, even Ah San has a population no less than that of Huaguo, he can learn and manufacture 'LaGaSi thin-film solar thin-film power generation panels'.

But does he really have the ability to build a photovoltaic farm on the country's land that is sufficient to supply electricity to residents across the country?
Obviously, this is impossible.

Therefore, for the entire planet, Huaguo is definitely the country that benefits the most from this matter.

Because she has more than the ability to use this technology to solve energy problems.

There is even the ability to use this technology to help other countries solve their energy problems.

After the photovoltaic power plant in Northwest China is built, will you buy the electricity for a few cents per kilowatt-hour?
It is dozens of times cheaper than your own country's power generation. Do you want to buy it?

Buying it means that a large part of the country's energy is controlled by Huaguo, and Huaguo's right to speak will naturally be strengthened.

If you don't buy it, then you will see other neighboring countries take off economically after buying it, and you will still be like that, don't you feel uncomfortable?
In the entire East Asian circle, how many countries can achieve 24-hour uninterrupted electricity throughout the year like Huaguo?
Hardly any good?

Even in the United States, power outages are commonplace.

(End of this chapter)