I Have a Research Support System

Wow, senior sister, the device efficiency of your CH2 system is 2.33%. In the laboratory, Han Jiaying suddenly said excitedly.

It seems that this system has hope. Looking at the J-V curve displayed on the computer, Chen Wanqing's eyes also brightened, but then she thought about the result that Xu Qiu and Han Jiaying's efficiency both broke 7%, sighed, and said: It’s still incomparable to your system.”

That's different, Han Jiaying comforted: Our 3D-PDI system has been iterated three or four times, and the senior sister's is still the first-generation structure. If we continue to iterate according to the design ideas behind, maybe someday we will catch up with the 3D-PDI system. up.

Who knows what will happen in the future, let's focus on the present. Chen Wanqing looked at the untested CH1 device in the glove box, and said expectantly: Try another CH1 device and see if there is a chance that it will exceed 3% Bar.

Okay. After Han Jiaying responded, she quickly switched a CH1 device in her hand and started testing.

0.21%...

Could it be that this point is broken, try another point? Seeing the result, Chen Wanqing seemed to understand something, but she still didn't give up struggling.

0.19%...

Hmm... Could it be that this device is broken, try another device. Chen Wanqing was still a little lucky.

0.05%...

Okay, don't try it, it's a matter of materials. Chen Wanqing said dejectedly.

However, she didn't get depressed for too long, and quickly regained her composure, At least CH2's performance is not bad.

After spending some more time, Han Jiaying finished testing all the devices.

Among them, her and Xu Qiu's system did not break through a new high, and the highest value of the senior's system reached 2.56%.

After copying the data and returning to the office, Han Jiaying reported the good news to Xu Qiu: Sister's CH2 system has reached a maximum of 2.5%.

Seeing that Xu Qiu didn't have any special reaction, she tilted her head and said doubtfully, Brother, you don't seem surprised at all.

Normally, Xu Qiu would have pretended that he didn't know the result, but he was all focused on writing the article just now, so he didn't react for a while.

Now that things have come to this, it would be too fake to pretend to be eating a whale. His reflex fox is not that long.

Xu Qiu pondered for a moment, then came up with a plan, and pretended to be profound: Actually, the old man watched the stars last night and calculated with his fingers, and he has already calculated today's experimental results.

Han Jiaying chuckled: Then how efficient is the CH1 system?

Less than 1%. Xu Qiu said calmly, his demeanor was quite like that of a demigod.

It's really less than 1%, the highest is only 0.25%... Han Jiaying was a little dazed, How did senior know, it can't be calculated.

Xu Qiu was about to release the big trick on the junior girl, but Chen Wanqing took the lead, she said firmly: Don't listen to Xu Qiu's fooling around, he must have deduced it from your expression and words just now, if the CH1 system works well , you will not only mention CH2, but not CH1.

Hmm...it seems to make sense. Han Jiaying nodded, but she always felt that something was wrong.

Hearing the senior sister's reasoning, Xu Qiu slammed his mouth. If he didn't know the truth, he would have believed it.

At this time, Tian Qing suddenly appeared at the door of 216, My friends, I'm back!

Facing everyone's suspicious eyes, Tian Qing took the initiative to explain: Yesterday, my best friend and I went to Hangzhou next door to play for two days. I just came back from the high-speed train. I haven't had dinner yet. I'll slip away first. If Teacher Wei asks Whatever I did today, I said 'processing TRPL data'.

By the way, this is a gift for you. After finishing speaking, Tian Qing put a few gift boxes in her hand on the desk, turned around and left in a bouncing manner.

I actually went out to play for two days, I'm envious of my real name, Wu Feifei sighed, and picked up a gift box casually, I'll open it.

I'll take it apart together. Duan Yun also moved over.

Wu Feifei kept taking things out of the gift box, chanting like announcing the name of the dish: Fennel beans, peach cakes, sweet-scented osmanthus cakes, mung bean cakes...

Han Jiaying was instantly attracted by the food, It's quite rich.

There was the sound of tearing the packaging bag in the laboratory, as well as joyous laughter.

At around nine o'clock in the evening, Teacher Wei sent Wu Feifei a how as usual.

Everyone wrote a text summary like Friday, and finally summarized it to Wu Feifei.

Wu Feifei helped Tian Qing set up a cover, and then reported the progress of everyone's work.

Not long after, I received another old man's emoticon package [OK] from Mr. Wei.

Speaking of which, Teacher Wei hasn't bothered Xu Qiu for the past few days, presumably it's not time to give a report.

After all, half of the work in Wei Xingsi's report was done by Xu Qiu, and he would definitely discuss it with him before the official report.

Most of the time for this kind of overseas exchange and visit is spent on public travel, especially in the first few days, the host must entertain the visitors and go shopping around. Generally, important meetings and reports will be arranged at the end of the schedule. halfway.

The model is almost two hours of speech, one full week of play.

Because there is no group meeting to be held next Monday, there is no need to prepare a PPT for the group meeting, but the experiment is still to be done.

In order not to disturb other people's paddling, the organic trio ran to the small conference room on the third floor to discuss the experimental arrangements for next week.

Xu Qiu spoke first: Next week, I will supplement the characterization test of the two best systems of me and Han Jiaying, then make a few batches of devices, continue to optimize the efficiency, and write an article. Well, you can fill in any new materials you have. Give it to me, and I'll help you make devices.

I don't need to continue to optimize my CH2 system for the time being, because I plan to develop the next generation material CH3 based on CH2. Chen Wan paused, and further explained: The specific idea is to use malononitrile and 1,3-indanedione (IN) reaction to replace a keto group on the original IN unit, thereby introducing two cyano groups to obtain the ICIN unit, which is used as the second-generation A unit.”

Xu Qiu looked at the reaction route. Compared with the original CH2, the new material CH3, that is, IDT-ICIN, only has one more reaction of malononitrile, so there is nothing wrong with the synthesis route.

However, thinking of the toxicity of malononitrile, Xu Qiu asked hesitantly, Malononitrile...is senior sister made up her mind?

Chen Wanqing nodded, I have already bought the medicine. Although malononitrile is a highly toxic reagent, it is solid at room temperature and has a melting point of more than 30 degrees Celsius. Compared with liquid and volatile solvents, it is safer. Amyl nitrite inhalation is also prepared, which can be used to treat acute cyanide poisoning.

That's good. Seeing that the senior was well prepared, Xu Qiu stopped talking and turned to look at the senior.

I plan to develop the third-generation 3D-PDI molecule based on B4T next week. The B3T system is not efficient, so I put it down for now. Han Jiaying pointed to the synthesis route on the PPT and said: Starting from the 6 series of simple PDI molecules, The first step is nitrosation...

After Xu Qiu saw the reaction conditions, he interrupted: I don't think this step can directly apply my experimental conditions at that time, nor can I use a microwave reactor, because there are two groups and four reaction sites on the simple PDI molecule. Yes, if the reaction conditions are too severe, it is easy to form dinitro substitutes, just like the previous bromination reaction.

After thinking for a while, Xu Qiu said: As for the reaction conditions, fuming nitric acid is not easy to replace, so here we can try to lower the reaction temperature. The previous conditions were at room temperature. Now try to make an ice water bath, and see the conditions at zero degrees Celsius.

Okay, Han Jiaying nodded, I originally planned to separate mono-substitution and di-substitution products like the bromination reaction before. It would be better if the reaction can be controlled to mono-substitution.

She created a new text box on the PPT, added Xu Qiu's suggestion, and then said: In the second step, the nitro monosubstituted PDI molecule reacts with selenium powder to obtain PDI-Se. The reaction conditions are the same as before, and NMP solvent , 190 degrees Celsius...

Seeing that Xu Qiu did not raise any objections, Han Jiaying continued: The third step is to react with liquid bromine to obtain PDI-Se-Br. This step has only one reaction site, and the yield should not be low, and then it is substituted with borate B4T undergoes a Suzuki reaction followed by a fused cyclization reaction.

There is nothing wrong with the other steps. Xu Qiu rubbed his chin, and added: The PDI I used before is the 6 series. Since we are starting from the beginning this time, we can also try the 5/8 series.

Yes, brother's system is the 8 series with the highest efficiency. Han Jiaying nodded, made a patch on the PPT again, and then looked at Xu Qiu eagerly, as if saying I want more.

Xu Qiu couldn't see what she was thinking, and waved his hand with a smile, No more, let's implement this plan first.

After a while, Xu Qiu thought about the article, and suddenly said: Speaking of which, in your current second-generation B4T system, should you also write the article first, after all, there is a 7% efficiency, and at the current stage 3D- When the PDI concept has not been widely reported, you can try to vote for AM, even if you fail to win AM, you still have the opportunity to switch to AEM and AFM.”

Hmm... Han Jiaying really didn't think about it that much before, she just focused on doing the experiment well first, but now that her brother said that she had a chance to win the AM, she couldn't help but be tempted, Then I will use my free time to do the experiment next week. Let's write an article.

Xu Qiu replied: Okay, I will send you some preliminary processed data later, and by the way, I will also give you the NC template I am writing now. Anyway, it is all 3D-PDI system, and the overall writing idea is also different. Almost, you can refer to it.

Okay. Han Jiaying said happily.

Chen Wanqing was sitting on the side. Although she had made a breakthrough in her system today, she was still a little depressed looking at the two in front of her.

Why does it feel like the students are talking about the top magazine AM of materials, just like talking about Chinese cabbage in the market.

Probably, this is someone else's child.