I Have a Research Support System

The next day, Xu Qiu activated the auxiliary system and continued to study the literature.

The fifth step is to read the introduction of the literature.

Researchers publish an Article or Communication article, telling the work they have done, which is essentially telling a story.

The introduction part is to tell the readers why we want to tell such a story, or the necessity for us to do such a work.

A story can go something like this:

A: I found a new creature with white fur in the wild. I named it X Beast. I caught, slaughtered and stewed X Beast. I found that the meat of X Beast was delicious and delicious.

It can also be like this:

B: Based on A's discovery, I also went to the wild to catch an X beast. I also captured, slaughtered, and stewed the X beast. I found that the meat of the X beast was delicious and delicious. But if you sprinkle pepper, chili powder, salt and pepper and other condiments, it will be more delicious.

C: Based on A's discovery, I found a black-haired X beast in the wild. I caught, slaughtered, and stewed the black X beast, and found that the meat of the black X beast was bad. In addition, I did a control group with pork and black pork and found that the black pork tasted better. Finally, it was concluded that there was no significant correlation between the meat quality and the hair color.

Ding: Based on A, B, and C, I found that X Beast tastes better roasted.

E: Based on A, B, and C, I found that X animal meat and black X animal meat are mixed at a mass ratio of 95:5, and it tastes better when stewed than pure X animal meat.

What they actually do might look like this:

A: I synthesized a new material with the molecular formula C-60, which I named fullerene. Through a series of characterization methods, I found that C-60 has many excellent physical and chemical properties.

B: Based on A's discovery, I successfully synthesized C-60. Through a series of characterization methods, the data obtained are similar to A's. Then the surface of C-60 is modified to obtain better physical and chemical properties.

C: Based on A's discovery, I successfully synthesized C-70. Through a series of characterization methods, I found that the physical and chemical properties of C-70 are not as good as C-60.

...

Among them, A is usually an industry leader. In the big field of "wild", he created the small field of "X Beast", and such work is usually published in first-class journals;

B and C are following in the footsteps of the big guys. Although they are not innovative enough, as long as they move fast enough, they can produce results quickly and publish them in second-rate journals;

As for Ding and Wu, because they started too slowly, they could only pour water on third-rate journals;

Followers after that, if they don't have eye-catching views or conclusions, they can only pour water in the third and fourth areas of SCI.

So, for people after A, is the work they do meaningful?

Of course, there are. Individual energy is limited after all, and it is unrealistic to rely on one person or a team to thoroughly study the entire field.

Moreover, even if someone has researched work such as "The genetic similarity between humans and X beasts is as high as 82%", this seemingly nonsensical project is still meaningful.

Because scientific research is essentially human investment in the future, and it is the wealth left to future generations.

In fact, the vast majority, more than 99%, of scientific research results cannot find practical application value within decades after publication.

But after all, those 1% of the results may one day in the future be inspired by a researcher after seeing them, find the missing corner of his scientific research puzzle, and then push a certain field forward a big step forward.

...

For a Review, the role of the introduction is similar.

It is usually used to tell readers why we study this field, the development process of this field, and the current problems that need to be solved in this field.

Compared with the abstract and conclusion, the introduction part is longer, and it is obvious that the introduction part of the three documents cannot be read quickly.

Xu Qiu thought for a while, and chose to read the article published in "Chemical Review" first. After all, this article has the highest impact factor.

The first paragraph mainly introduces "Why study the field of organic photovoltaics".

With the help of You Pi and Gu Gou, Xu Qiu translated and summarized it, and then recorded it in his scientific research notebook:

"Solar energy is clean, environmentally friendly, and non-polluting renewable energy.

Traditional solar cells based on non-metals such as silicon and CIGS have high photoelectric conversion efficiency (above 15%) and have been commercialized, but their cost is high and environmental pollution waste will be generated during preparation.

In recent years, organic photovoltaic materials have attracted the attention of researchers because of their advantages such as low price, light weight, and the ability to prepare flexible devices.

The photoelectric conversion efficiency of organic photovoltaic devices is still low, currently up to 10%. "

Then, he added his own insights later:

"For solar cells, the core indicator is photoelectric conversion efficiency, which determines how much sunlight it can convert into electricity.

The conversion efficiency of inorganic batteries is more than 15%, which is at the commercial level, that is, under the conditions of mass industrial production, while 10% of organic batteries is still in the laboratory stage. If it is industrialized, it is still unknown whether it can reach 5%. "

The second paragraph mainly introduces "the development history of organic photovoltaics". Xu Qiu summarized and recorded:

"In 1986, Tang et al. first published an article on organic photovoltaic devices with a photoelectric conversion efficiency of only 1%.

Six years later, Heeger and Wudl's research group used conjugated polymers MEH-PPV and C-60 as the double-layer effective layer, and found that the reason for the current generation was that MEH-PPV transferred electrons to C-60 after absorbing sunlight. , so the two materials are named electron donor and electron acceptor;

Subsequently, the researchers found that after mixing the electron donor and the electron acceptor, the photoelectric conversion efficiency of the bulk heterojunction organic solar cell device was prepared;

Until now, the bulk heterojunction is still the most widely used effective layer structure in the field of organic solar cells. "

Then he used a highlighter to mark unfamiliar technical terms such as "conjugated polymers, electron donors, electron acceptors, bulk heterojunctions, and effective layers" that appeared.

The last paragraph introduces the order of writing of this review.

Xu Qiu looked at it and felt that there was nothing to do, so he didn't summarize it. He just wrote down two technical terms, "morphology" and "charge mobility".

[Literature reading proficiency +10%]

Looking at the full page in the record book, Xu Qiu felt very satisfied.

But then, he saw the 60-plus-page text again, and the joy he had just gained was instantly diluted a lot.

"My scientific research journey has a long way to go." Xu Qiu said with emotion.

Step six. View text.

...

Xu Qiu waited for a long time, but found that there were neither additional hints nor examples like the previous steps, only four words "check the text".

After thinking about it for a while, he thought it should be because of the low level of proficiency in reading the third-order literature that he deduced.

Why don't you ask your senior sister to learn from her in the afternoon?