Chapter 360: Non-staff staff + one

On Monday, the group meeting.
Feifei Wu began to write a review plan for two-dimensional perovskites, the target journal AM.
Duan Yun changed the format of the rejected manuscripts submitted to ACSAMI and transferred it to RSCAdv., and at the same time handed over work in the thermoelectric field with Feifei Wu.
Although it was a work handover, it was actually a new research direction, and Duan Yun and Wu Feifei worked together.
If Duan Yun can write the article before he graduates, then this article is his. Otherwise, it will be handed over to Feifei Wu for further research, and the article will belong to Feifei Wu.
The direction was chosen by Duan Yun. In order to save time, he chose a less innovative research project, which is to use cobalt nanowire doped PVDF to prepare thermoelectric devices.
Because silver nanowires and nickel nanowires doped with PVDF have been used before, and two articles have been published, unless the performance of the prepared device is very good, or at most, an ACSAMI-level article will be published. A three-zone RSCAdv.
Tian Qing has sorted out the work of "Charge Transport Research of Two-Dimensional Perovskite Standard Sample System" last week, and in accordance with Wei Xingsi’s wishes, submitted Adv.Sci., and then said, "This week I plan to look at the literature and find Take a look at the next research direction."
This is of course a more euphemism. To put it bluntly, it means "I am the hen for the next research direction. Would you like Teacher Wei to arrange one for me, and I will consider it?"
In fact, Tian Qing is also a little afraid that Wei Xingsi will arrange a similar "perovskite quantum dot synthesis job" for her. She really does not want to do synthesis.
However, her theoretical research is quite special and it is difficult to do it behind closed doors. She must rely on an existing system for research, and she has already studied several standard sample systems of perovskite, so there will be no for a while. The idea.
Wei Xingsi nodded and said no more, it was a acquiescence.
Sun Wo began to report: "Next, I plan to study tin-based two-dimensional perovskite photovoltaic devices..."
"Two-dimensional plus Xiji, can it be done well?" Wei Xingsi seemed to ask and replied: "Anyway, let's do it first."
Xu Qiu heard the entanglement in Teacher Wei's words.
On the one hand, Mr. Wei can understand that the current two-dimensional perovskite system is under high competitive pressure. There is nothing wrong with Sun Wo or Wu Feifei choosing a subdivided unpopular area;
On the other hand, the unpopular subdivision of perovskite here is different from that of organic photovoltaic ternary blending system or the unpopular subdivision of ternary conjugated donor materials. The former is unpopular because it is difficult to produce results, and the latter is Because of the lack of novelty.
In other words, the performance of the organic ternary system is guaranteed by the binary system, and it will not be worse. Although the perovskite tin-based and two-dimensional strategies have solved the "lead toxicity" and "environmental instability" respectively. However, both of them will cause performance degradation, and the difference is superimposed. The performance result is likely to be unacceptable, and it is very likely that the efficiency will not be broken even 1%.
Of course, if the final result is good, for example, the efficiency data of tin-based two-dimensional perovskite materials are 12% and 15%. According to the current popularity of the perovskite field, there is a chance to publish CNS, but this kind of thinking Just think about it, even if it is really possible, Sun Wo is basically out of turn.
Chen Wanqing continued to organize the work of the two systems-4F and -4Cl.
She is not in a hurry, anyway, these two systems lack data on the light source, at least they have to wait until the light source is tested in September before they can be cast.
At the same time, she will now set aside one hour every day to organize her doctoral dissertation.
Wei Xingsi is not as strict with the two graduating doctoral students Chen Wanqing and Duan Yun now.
After all, the number of articles of the two has reached the standard, as long as they do a good job handover, there is no need to get stuck.
Moreover, it is common for students to be better than their tutors in the future. Maintaining a good teacher-student relationship is a proper network. The teacher-student relationship in the scientific research circle, as long as the student and teacher are not froze, It's all very stable.
Because the circle is so small, if a student betrays the teacher, others will consider whether they will be betrayed in the future when working with them.
Even if there are various reasons behind it, other bystanders cannot be fully aware of it. They will only judge according to normal thinking, and label the student as "bad character".
Of course, having said that, this is all based on the fact that teachers and students are mixed in the scientific research circle, and the gap between the two is not big. If one person is dazzling enough, many shortcomings will be covered up.
Xu Qiu began to report: "Last week, the exciton binding energy test of ITIC and IDIC was conducted. The principle is..."
"Among them, the exciton binding energies of ITIC and IDIC are 117 and 112 millielectron volts, respectively..."
"Further fitting results show that under normal temperature and normal working conditions of solar cell devices, more than 80% or even 90% of excitons will spontaneously split into free electrons/holes..."
"This result is consistent with the previous Han Jiaying H43: IT-4F system. I personally speculate that it is the general performance of ITIC-type non-fullerene materials..."
Last week, Wei Xingsi was busy writing articles about Tian Qing, Han Jiaying, and Duan Yun. Xu Qiu did not tell him the result in advance.
Therefore, Mr. Wei was slightly surprised after seeing this result. After thinking for a while, he said: "This conclusion is very important. If we can dig deeper into the mechanism, we can find more non-fullerene systems and traditional fullerenes. The difference in the system may impact a big article...Xu Qiu, do you have any other ideas?"
"Yes." Xu Qiu operated the laser pointer, turned the page of the report PPT, and continued talking:
"In addition, Mo Wenlin and I found that different from the ITIC system, the device performance of the IDIC system is not sensitive to film thickness and device size. I guess it is because the two exciton diffusion distances are different, so I plan to further test ITIC with the HOPG method. , IDIC's exciton diffusion distance, but the ITIC system has just been tested, and the data has not been processed yet."
Now Xu Qiu has very high authority in the research group, and he does not need to report to Wei Xingsi if he purchases equipment, materials, and medicines with a unit price of less than 2000 yuan. Therefore, Mr. Wei does not know this, otherwise he has done HOPG before. In his experiment, seeing Xu Qiu buying HOPG, he can definitely think of his plan to test the exciton diffusion distance.
"Coincident," Wei Xingsi said with interest: "Exciton diffusion distance. I have done this before in Beautiful Country. I used HOPG. By the way, how did you test it?"
Xu Qiu briefly explained: "First, stick the surface of the HOPG with tape to get a fresh and smooth substrate, and then..."
"Well, the method is correct. Take the time to fit the results to see." Wei Xingsi nodded, then fell into thinking, and said after a while, "Tian Qing, didn't you say that there is no research direction for the time being? How about helping Xu Qiu, such as testing the exciton binding energy and exciton diffusion distance of other non-fullerene acceptor materials?"
Xu Qiu muttered in his heart: "That's Tian Qing, I don't think I can bear it...but rejection is definitely impossible."
Tian Qing thought for a moment, nodded and said, "I'm fine."
Last week, liquid nitrogen was used in the Handan campus for the first time. Tian Qing was also very interested in seeing liquid nitrogen for the first time. After watching Xu Qiu’s experiment for a while, she knew that these two tests did not involve organic synthesis. Not too dangerous.
For her, there is not much difference between organic and perovskite, as long as they don't engage in dangerous experimental operations.
"That's okay, I got into a misunderstanding before, and I have been planning you to the perovskite side." Wei Xingsi said with a smile:
"Actually, you can also use CEILV, TOF, or even field-effect transistor FET for organic non-fullerene systems. When you first came here, I remember I taught you the research method of P3HT system, and now it is also possible to change to other systems. akin."
Seeing that Tian Qing had no objections, Wei Xingsi turned to look at Xu Qiu.
Xu Qiu also nodded in response, indicating that there is no problem on his side.
Tian Qing can be regarded as a non-staff for the time being. Xu Qiu thinks that she cannot be commanded, and he is not willing to force others to work hard against the wishes of others.
After all, in the context of a small number of elite individuals leading the development of the entire civilization, that is, the whole people's leek, hard-working leek will only make oneself a little plumper, and it will be difficult to surpass the leek species after all.
In other words, it is almost impossible for the middle class to break through the boundaries. Before birth, there is a chance of reincarnation, and after birth, there are about and only two ways to break the barriers, to marry/to join the wealthy family, or to go all the way... …
Similar to the 500W and 1000W lottery tickets, it can be regarded as a single opening, which is not enough to achieve a level of sublimation. Generally speaking, these people are called upstarts. Unless they win a lottery every day, it can be called "open all the way". Of course It's too obvious to hang up, and it's estimated that it won't be long before you will be invited to have tea or something.
This "minority elite" guides the overall civilization and develops by cutting leeks. There is naturally no problem.
Because this is precisely the choice made by human civilization itself. From feudal society, even earlier civilizations, to the present, the state's operating mechanism has not changed much.
When the productivity has not reached the extreme and the material is not very abundant, abandoning this model is just dying and will inevitably lead to chaos.
Of course, specific to different eras, different countries, the situation of leeks will be different.
The first situation, hundreds of years ago, was a feudal imperial society.
The minimum living standard of the general public is 1, and even the most basic food, clothing, housing and transportation cannot be guaranteed. Many people will starve to death or freeze to death;
The living standard of the middle part is 1-100. Working hard can prevent you from starving or freezing to death. At this time, the middle class still wants to work hard, because if you don’t work hard, you will die;
The living standard of the upper part is 100-10000, and will not starve to death, but life is like that. The upper limit is far less than that of modern society. For example, the life of the emperor in ancient times, which seems to be no more than that for many people now. Xu Qiu said I feel that in a world where there is no internet and no fat house and happy water, it is better to be a salted fish in modern times.
The second situation is now.
Because of the rapid development of productivity brought about by the three industrial revolutions, the minimum living standard of the general public has reached 100, which means that as long as there is a breath, it is basically difficult to starve to death and freeze to death, and there are also subsistence allowances, although there may be shady. For example, similar to the news reports that open a BMW to receive a subsistence allowance, but overall it is relatively clean, but the strength of this guarantee is not large, and it is limited to guaranteeing basic survival;
The living standard of the middle part is 100-10000, but the vast majority of people are in the range of 100-1000, and the gap cannot be widened. If you work hard, you may be able to break the small barrier of 1000 and reach more than 1000 (equal Monthly salary above 2, 3W), but if you want to get 10,000 (for example, with real power, annual salary of several million, etc.), there may be one in a million people;
The upper part is 10,000-10,000,000. The productivity is constantly developing, the world is generally peaceful, and there is no reallocation of resources. According to the Matthew effect, the gap between the top and the bottom will naturally widen, that is, the gap between the rich and the poor will only increase. The bigger it is, it is expressed by a very simple fact, that is, no matter what the tax is, the middle class is the last one received.
The third situation, not to mention ideological issues, for beautiful countries and developed countries in Europe, they rely on financial and other means to harvest other countries as leeks, which also puts their entire society in a state of high welfare.
The minimum living standard of the general public is 500, the middle most is 1,000-10,000, and the upper part is also 10,000-10,000,000.
Because of the high social welfare, the middle gear starts at 1,000. If you work hard, it can only reach 2,000 and 3,000, and you can reach 10,000 if you work hard. UU reading www. uukanshu. com
But what about 10,000? You can't go up any further.
This is also the reason why Europeans generally compare Buddhism. For example, in Germany, 365 days a year, an average of 150 days of vacation, vacations at every turn, travel at every turn.
Anyway, working four days a week is enough to maintain a high-quality life. The rest of the time is traveling, playing games, "playing games," and doing anything.
There are still many people who choose extreme sports and other sports. This is also jokingly called "the reason why there are so few foreigners."
From the perspective of national development, it is natural to hope that the growth of leeks will be more gratifying, and the leeks can be harvested in one crop. This is the fact that flower growers have completed the accumulation of hundreds of years in Europe and the United States in less than a hundred years. A major reason for transcendence in the far future.
It is essentially the result of the joint efforts of these generations.
To some extent, the rise of flower growers is also inevitable.
txt download address:
phone-reading: