The nanopillars do not absorb light and have a different refractive index than the surrounding material, so certain wavelengths of light are reflected from the array. These nanopillars can form a separate layer between the perovskite and silicon.
When light enters the cell, the perovskite layer absorbs most of the short-wavelength light, but some of it can pass through. The nanopillars are properly spaced to reflect unabsorbed light back to the perovskite layer, giving it a second chance to be absorbed.
.The longer wavelength light can pass directly through the nanopillar layer without being reflected, so that it can reach the underlying silicon.
Therefore, the solar power generation efficiency of this material is high.
The only problem is that Wu Siyuan can't make it.
This material is made using nanotechnology, a technology Wu Siyuan has not mastered.
It doesn't mean that it can't be manufactured. There is no problem in making it in the laboratory regardless of the cost.
However, this method cannot be promoted on a large scale because the cost is too high.
Wu Siyuan sighed slightly after understanding this.
If it can be used on a large scale, it is unlikely to completely replace fossil energy, but it can at least replace more than 50% of fossil energy.
Wu Siyuan can use this new energy to reap a wave of influence.
pity.
Wu Siyuan has not yet mastered nanotechnology and cannot produce such nanomaterials.
There will definitely be relevant technologies in the future world.
However, after he tried several times, Doraemon refused to take him to the future world.
Fortunately, among the other props Wu Siyuan brought back, there are several technologies that Wu Siyuan was able to reproduce. Although they do not meet the original standards, they may be outdated technologies that need to be eliminated in the future world, but in the real world, they are
It is an internationally leading level.
………………………………………………………………………………………………………………………………
………
Time is running away in the research of [Transformers] scientists.
Wu Siyuan, who was addicted to it, suddenly felt someone outside calling him.
He came back to his senses, and with a thought, his consciousness returned to Fat Tiger's body. When he opened his eyes, he saw that it was Doraemon, Nobita, and Xiaofu who were calling him.
"Fat Tiger, you're not going to sleep here all day, are you?" Doraemon said with a speechless expression. Nobita was already decadent enough, but he didn't expect Fat Tiger to be even more extreme.
"Is it already night?" Wu Siyuan looked at the sky outside and saw that it was indeed dark.
The moon hangs in the sky, as if it is within reach.
"Hey! I really don't know what to say to you!" Doraemon shook his head and said, "It's getting dark. We've been playing all day. It's time for us to go back."
"Ah! I haven't finished my homework yet!" Shizuka suddenly remembered this matter.
The husband looked worried after hearing this, "Me too, my mother will scold me."
"I didn't write it either! My mother won't scold me, but my father will beat me."
"what to do?"
"The teacher will punish you tomorrow."
Other students who were having a great time also said worriedly when they heard this.
Nobita was very upset after hearing this.
I didn't expect that there would be such trouble.
He looked at Doraemon for help, but Doraemon looked confident.
Nobita was immediately overjoyed, "Doraemon, do you have any idea?"
As soon as he finished speaking, Nobita's classmates all looked at Doraemon.
Besides Fat Tiger, that is Wu Siyuan.
Of course Doraemon has a way, he smiled and said, "Don't worry, I have thought of this situation a long time ago, and I have already thought of a solution."
"Are you using a [time machine]?" Xiaofu, who has the most flexible mind, asked hopefully.
Other students may not understand, but Xiaofu, Fat Tiger, Shizuka and the others often go on adventures with Nobita and Doraemon, and I don’t know how many times they have taken the [Time Machine]!
As soon as Doraemon mentioned the solution, Xiaofu remembered this prop.
After hearing the husband's words, Wu Siyuan also looked over.
Among all Doraemon's props, [Time Machine] is one of the props that Wu Siyuan wants to get the most.
If he hadn't been afraid of attracting the "Time Police", Wu Siyuan would have jumped into the drawer when he was at Nobita's house, got on the time machine, and swam in the torrent of time.
After Doraemon heard what he said, he shook his head and said, "It's not a [time machine]!"
The husband suddenly became disappointed.
He thought for a moment and asked, "Doraemon, are you going to bring out the automatic homework props for us to use?"
"How is that possible?" Doraemon glanced at Xiaofu angrily, "You have to do the homework assigned by the teacher yourself! This is the attitude of being responsible for yourself."
"But, Doraemon, we don't have time." Shizuka said.
"Don't worry! We have time." Doraemon said with a smile.
As it spoke, it took out the [Any Door] from the fourth-dimensional pocket.
Doraemon added, "I installed a [Jet Difference Adjuster] on this door."
"Just turn it..." Doraemon fiddled with the [Jet Difference Adjuster] installed on the door handle, and then opened the [Any Door].
In the Kingdom of Clouds at [Any Gate], darkness has fallen and the full moon hangs high.
But on the other side of [Any Door] - Nobita's house, the sun is shining brightly.
"ah!"
"ah!"
"ah……"
Nobita's classmates all screamed in surprise.
"What is going on?" Nobita also asked doubtfully.
"I set the [Jet Difference Adjuster] to the time when we come to the Kingdom of Clouds. After we go back through the [Any Door], it will be daytime, so everyone doesn't have to worry about not having time to do homework." Doraemon explained.
"ah!"
"ha!"
Nobita's classmates were half happy and half wailing!
Doraemon didn't care about this, he said to the others, "Okay, let's go back."
After all, children have to go home when they are tired from playing.
Nobita's classmates didn't say anything, and passed through the [any door] one by one, returning to Nobita's home at this time during the day.
Wu Siyuan was the last one to walk into this [Any Door] equipped with a [Jet Difference Adjuster].
He originally wanted to observe the [Jet Difference Adjuster] more, but there was not much time left for him.
Doraemon and Nobita kept urging on the other side.
Wu Siyuan had no choice but to walk in.
In fact, this is not the first time Wu Siyuan has used [Any Door].
But before, I didn’t feel anything when using [Any Door]. I just stepped out and arrived at another place in the world.
[Any door] is like a wormhole passage.
But this time, after [Any Door] was loaded with [Jet Difference Adjuster], Wu Siyuan stepped in, and his whole feeling was completely different.
The world is spinning.
Changing!
Flattened into various simple dimensions.
Changes that are hard to describe in words!
Wu Siyuan feels like he has one foot in the present and one foot in the past.
His body and soul were separated into two different dimensions.
No, not in two dimensions.
Rather, they are two locations in the long river of time.