Chapter 276: The good news as expected

Qiu Heming’s reply came quickly. Before Teacher Wei announced the end of the group meeting, Xu Qiu received a message:
We have two integrating spheres here, one is domestically produced, the price is 26,000, and the other is. It is imported and the price is 68 thousand."
Immediately afterwards, Qiu Heming sent a few self-developed pictures of the domestic integrating sphere.
Xu Qiu clicked on the picture and browsed at will.
From the outside, the integrating sphere is a white sphere, and the inside is hollow. The sample card slot can be used to load samples for testing. There are two small holes on the equator of the sphere, and the direction is 90 degrees. Angle.
The penultimate picture shows a person dragging the integrating sphere with his palm.
Using the palm of his hand as a reference, Xu Qiu roughly judged that the integrating sphere should be about the size of a human head, about 20 cm in diameter, and it is not difficult to put it in the TRPL test chamber.
Finally is a picture that introduces the working principle of the integrating sphere:
"The inner wall of the integrating sphere is a good spherical surface, and the deviation from the ideal spherical surface should not be more than two thousandths of the inner diameter (the deviation of this product is less than one thousandth). One or more window holes are opened on the spherical wall for entering Light hole and receiving hole for placing light receiving device.
In order to obtain higher measurement accuracy, the opening ratio of the integrating sphere should be as small as possible. The opening ratio is defined as the ratio of the area of ​​the opening of the integrating sphere to the area of ​​the entire inner wall of the sphere (this product has two vertical openings, The opening ratio is 2.8%).
The spherical wall is coated with an ideal diffuse reflection material, that is, a material with a diffuse reflection coefficient close to 1. The commonly used material is magnesium oxide or barium sulfate. After mixing it with a colloidal adhesive, spray it on the inner wall (this The product is made of high diffuse reflectance PTFE material fired, and its spectral reflectance in the visible spectrum range is above 99%), so that the light entering the integrating sphere is reflected multiple times by the inner wall coating. A uniform illuminance is formed on the inner wall. "
After thinking about it for a while, Xu Qiu understood its operating mechanism:
A laser pulse is injected into the integrating sphere from the entrance hole and irradiated on the surface of the sample to generate fluorescence. The fluorescence is emitted through the exit hole and captured by the detector under the action of diffuse reflection on the inner wall of the integrating sphere.
Since the number of incident photons of the TRPL instrument is known and controllable, denoted as A, the number of fluorescent photons collected everywhere on the sphere can be considered the same, then the total number of fluorescent photons produced is calculated by the formula, Denoted as B.
According to the definition, the ratio of the number of photons emitted from the secondary radiation to the number of photons from the primary radiation that absorbs the excitation light per unit time is the fluorescence quantum yield, so only B/A needs to be calculated.
‘Strange knowledge has increased again. 'Xu Qiu finished the analysis and saw Qiu Heming added another message: "Your research team has already bought TRPL instruments. If you need to buy an integrating sphere, I can call the shots for the domestically produced one. It will be as cheap as 22,000 for you, and the imported one is cheaper. No, I can only buy it at the original price. They are all regular customers, and I will quote you the lowest price."
"Does the domestic and imported integrating spheres have any difference?" Xu Qiu asked.
"Imported craftsmanship is better, with higher accuracy and smaller errors. However, the domestically produced ones are now optimized very well, otherwise it would not be possible to sell them." Qiu Heming replied.
After understanding the basic situation, Xu Qiu reported to Teacher Wei the product quotation, the simple working principle of the integrating sphere, and the difference between domestic and imported products.
"It's so expensive," Wei Xingsi paid attention to the price first. He had only heard of the integrating sphere before, but had never used it.
After a pause, Teacher Wei asked Wu Shengnan, "Do I have to use an integrating sphere?"
"Well, yes," Wu Shengnan nodded, "If there is no integrating sphere, you can only set a reference for testing, and what you get is the relative fluorescence quantum yield relative to the reference. With an integrating sphere, you can measure absolute fluorescence. Quantum yield, I think most of the reports in the literature are absolute quantum yield."
"Then buy it, domestically produced 20,000 yuan, imported 70,000 yuan..." Wei Xingsi considered for a while and decided: "Let’s buy a domestically-made one and try it. Anyway, we can use the standard sample to see the value they tested. , If the error is acceptable, use the domestic product; if the error is too large... then let’s talk about the deviation from the numerical value in the literature. Xu Qiu, you can talk to Qiu Heming directly and let them ship as soon as possible."
"Okay." Xu Qiu nodded in response and sent a message to Qiu Heming, indicating his intention to purchase the domestic integrating sphere. The other party said that "it will be delivered in person later, because it is a precision instrument and express delivery is not safe."
When Wei Xingsi learned about it, he added: "During this period of time, Xu Qiu, Tian Qing, Wu Shengnan, you guys, see if you have any TRPL instrument problems, sort them out, and then ask Qiu Heming together."
The group meeting ended, everyone returned to 216, and each became busy.
Xu Qiu continued to write Han Jiaying’s B3T-6 series. The target journal is ACSAMI. This article is the same as his school sister. He ranks first, the school girl second, the senior sister works three, and Wei teacher four works. communication.
In fact, in the scientific research circle, it is generally believed that the people who put forward the big experiment direction and write the article, especially the main author of the article, contribute a large proportion to a work, while the people who actually work and do the experiment The contribution is relatively small.
For example, if a doctoral student instructs two undergraduates to help him do experiments, if the doctoral student writes his own article, the first work must be a doctoral student.
Therefore, like the EES written by Xu Qiu before, theoretically Xu Qiu and Han Jiaying are the same, Xu Qiu should be ranked first, but it is impossible for him to let the school girls work for nothing, and he takes up all the articles. , And the order of this ACSAMI article is normal.
Han Jiaying and Chen Wanqing each perfected the synthesis route and prepared for the synthesis in Zhangjiang tomorrow, including drawing the molecular structure and synthesis route under the ACS standard with CHEMDRAW software, calculating the relative molecular mass of each raw material, converting the feed ratio, and contacting Shenzhen Optoelectronics Companies, purchase monomer raw materials and so on.
Wu Feifei and Sun Wo entered the Lijian laboratory, began to prepare two-dimensional perovskite battery devices, and continued to optimize experimental conditions.
Wu Shengnan sat in front of the computer, put his hands on the keyboard, looked directly at the computer screen, typed codewords blindly, and began to write a review. The target journal of her review plan is AFM, a sub-issue of AM, and one of the 10+ impact factors. District Journal.
Duan Yun also entered the laboratory and prepared new thermoelectric devices based on the ideas he reported at the group meeting.
Only Tian Qing seems to have not yet entered the working state. She is holding the tablet, writing and drawing, seeming to record the bits and pieces of the May Day holiday.
...
The next day, Thursday, the holiday officially ended and the school bus opened normally.
Chen Wanqing and Han Jiaying took Wu Shengnan to Zhangjiang. They mainly brought new postdoctoral fellows to familiarize themselves with Zhang Jiang's laboratory location and how to obtain medicines and experimental consumables.
There were three people missing in Handan's laboratory, and it became a lot more empty in an instant.
In the next few days, everyone worked methodically.
Soon it came to Sunday.
Because of the May Day holiday, I went to work as usual on Saturday this week. Xu Qiu had been working on articles for three days and finally finished ACSAMI's article.
Xu Qiu now has nearly 20 articles writing and editing experience, and he is already a "proficient in SCI paper writing". At his level, even Teacher Wei can't find too many faults, so the speed of writing up the article Fast.
In the evening, the article was submitted smoothly, and Xu Qiu also got good news that both his NC and EES articles have been submitted for review.
After journals submit manuscripts, you can usually see the real-time manuscript processing in the background of the manuscript submission. Some descriptions are more specific, and some are more vague.
Although it is good news, Xu Qiu expected it. After all, these two jobs are indeed top-notch in the entire field of organic photovoltaics.
The editor's ability to engage in scientific research may not be strong, but the ability to identify a job is usually very strong, otherwise, you will not be an editor of top journals such as NC and EES.
On the other hand, it is also related to Wei’s submission style. Although he shouts slogans aggressively in his usual work, clamoring for 8% efficiency at 6%, he tends to be conservative when submitting articles. When I went out, I was about 60 to 70% certain in my heart. This also caused Feifei Wu's first CM article to vote lower, and I voted for CM for articles that could have been listed on AM or JACS.
Although the rejection rate of many journals can reach 80% or even higher, for example, JMCA journals directly write the sentence "Please note that the rejection rate of JMCA is currently about 80% of submitted manuscripts" in the review instructions.
But in fact, many of them fell on the first step of the editor’s review and were directly rejected by the editor, because some people would have the idea of ​​submitting casually, or the submission style was more radical, even if the quality of work was average, they wanted to reach the top Journal.
For example, many messy manuscripts will go to "Nature", Xu Qiu saw when visiting the forum before:
"I was bored with cooking at home some time ago. I wrote an "Analysis of Protein Denaturation in a Critical Field of Temperature" and submitted it to Nature. The comments were overhauled and the analysis experiments were supplemented. I added some comparative experiments, including sodium salt. Catalysts, unsaturated fatty acid infiltration, and experiments under anaerobic conditions were directly accepted after repair.
Personally, submission is not difficult. The key is to do more experiments, more in-depth analysis, and listen to family members' opinions.
Don’t say anything, I’m going to cook braised pork, I wish you all the best in your paper, and invite me to eat meat another day! "
Another example:
"In the morning, my instructor informed me that I was going to postpone it for another year. UU read www.uukanshu.com in a very bad mood. In the evening, I drank a bottle of Jiang Dabai and relived Lin Zhengqi's zombie film.
Suddenly, my mind was full of Chinese thoughts, and I quickly took out a pen and scribble. Thinking about it, I would break the jar, and I just put the "Study on the Forward and Inverse Kinematics and Cartesian Space Trajectory Planning of Xiangxi's Body Driving in Xiangxi" written by me on a whim before going to bed on Nature.
As a result, I received a direct acceptance notice from the editor after only 10 minutes of posting on Weibo, saying that my research content was very good and filled the international gap... I promised to publish it in the next issue.
The next day, I showed my tutor a glance at the article and was praised. He said that I had written well. I asked me to vote for "Journal of XX Medical College".
He also told me not to care about this petty profit, saying that the domestic journals will surely emerge in the future if the "only SCI first" is broken in China.
When I heard that it was the same reason, I sent a rejection letter to the editor. I haven't received his reply yet. Did he block me..."
PS: Shocked! Today is the author’s birthday, and there is no request for leave and no change. This is full of sincerity. Is it worthwhile to vote for a monthly pass and ten recommended votes?