Chapter 125: The last 1 piece of the puzzle

　　 "Is it a problem with the filter? The filter magnification for X-rays is too high?" Xu Qiu asked.
　　 "Filter, filter magnification..." Meng Ren muttered for a while, and then analyzed:
　　 "The signal strength is just about 10 times worse, and each level of the filter is reduced to 10% of the previous level. This is probably the reason."
　　He typed the query code of the current filter position into the computer, and the computer screen quickly popped up:
　　Filter6
　　 prompts that the current filter gear is 6 gears.
　　 Meng Ren keyed in the code again, adjusted the filter gear to 5, and then checked the signal strength.
　　 The signal strength value this time has become 32156.
　　 This data is within the normal range.
　　 "The problem has been solved," Meng Ren exclaimed, "Brothers hide deeply."
　　 Chen Wanqing and Han Jiaying also looked at Xu Qiu with curious eyes.
　　 Xu Qiu smiled and did not speak.
　　……
　　 After that, Meng Ren's operation no longer had other problems, and his condition gradually improved, not as nervous as at the beginning.
　　 After finishing the cut, Meng Ren explained the precautions, and left after leaving a contact information.
　　The personnel inside their light source have their own laboratories and offices. On-duty on the online station is considered voluntary work, and they are scheduled weekly.
　　 is a bit similar to the task of teaching by professors in colleges and universities, requiring one or two classes a week, and light source researchers also have the task of assisting users in testing.
　　 Almost an hour and a half passed, the teacher still did not come.
　　 Fortunately, I chose to start debugging directly. Otherwise, if someone comes here in the afternoon, the experiment will be delayed a lot.
　　 The three began to divide the work.
　　 Similar to the last light source test, Chen Wanqing was responsible for operating the computer, and Xu Qiu took Han Jiaying to change samples.
　　 In the test cabin, there were only Xu Qiu and Han Jiaying.
　　 "Brother, you can finish the cutting operation by yourself just now."
"you guess."
　　 "……"
　　 It seems that the school girl's intuition is still relatively sharp, but it is impossible for him to admit it.
　　 The first few samples are all based on the Xu Qiu system. From the signal of the samples, the data is still good.
　　 One time when changing samples, he heard Han Jiaying's stomach screaming.
　　 I looked at the time, it was almost half past 12 noon, Xu Qiu said:
　　 "Hungry? Going to eat?"
　　 "Hmm..." Han Jiaying said embarrassedly in a low voice:
　　 "I eat a little bit less for breakfast."
　　 "It's okay, I'm a little hungry too." Xu Qiu said:
　　 "It's just that there is no commercial street here. Eating is a problem. Maybe there is a cafeteria in the light source."
　　 "Should, let's ask the senior sister."
　　 "Okay, install this sample, it's untested."
　　 Back to the office next to him, Xu Qiu said:
　　 "Let’s have lunch, is there a cafeteria on the light source?"
　　 "Of course there is, such a big research institute, the employees in it also have to eat," Chen Wanqing said:
　　 "However, employees have employee cards and can order food at will. Users like us can only buy meal coupons and set meals."
　　 The three cleaned up and left the main building.
　　 Chen Wanqing leads the way.
　　 The cafeteria is still a bit far away from the main building, about one kilometer away.
　　 When I came to the cafeteria, it only had one floor, but there was another building next to it, which seemed to provide accommodation.
　　 Following the signs, the three of them came to a place similar to the reception desk of a hotel.
　　 Xu Qiu asked the clerk:
　　 "Are the meal coupons bought here?"
"Yes."
　　 "Buy three."
　　 "A total of 30 yuan."
　　 After scanning the QR code to pay, the clerk handed over three meal coupons.
　　 A thin piece of paper, with three large characters "dining coupons" in the center, and an oval red stamp. The lower characters are dedicated to Modu Light Source. The printing time was three years ago.
　　 If you don’t look closely, it feels like a certificate placed on the bottom of a food box.
　　 The cafeteria is not big and there are not many people dining, which may be due to the timing of the peak dining period.
　　 The price is relatively cheap, a large meat, a small meat, a vegetarian dish, a bowl of soup, a bowl of rice, only 10 yuan, it should be subsidized like a college canteen.
　　 dishes have been served in small bowls in advance, and there are only two or three choices of each type, so there is not much room for choice.
Aunt 　　 Dacai took Xu Qiu's meal coupons and inserted the three meal coupons into an iron tag.
　　 The three of them prepared the food and found the table to sit down.
　　 "The taste is not bad, but it's a bit cold." Xu Qiu said after taking a bite of the smoked fish.
　　 "Come on late, the cafeteria here should be open after 11 o'clock." Chen Wanqing said.
　　Han Jiaying nodded in response, then took a sip of soup:
　　 "The soup is hot, you can drink some soup first."
　　……
　　 After lunch, return to the BL14B1 line station.
　　 After a short break, the three began to discuss the next division of labor.
　　Considering that Han Jiaying has basically learned to change samples, she is responsible for this.
　　 Chen Wanqing is still responsible for operating the computer, while Xu Qiu is responsible for real-time processing of test data.
　　 Although some information can be seen from the original data, for example, the crystallization performance of the Xu Qiu system is very good, but it is not intuitive enough.
　　 And after data processing, if you find that a sample is not well tested, you can re-test on the spot.
　　 Otherwise, in case there is a key data problem that needs to be tested again, then you have to wait for the next light source machine, which may take more than a month.
　　 Xu Qiu first processed the data of 1# and 2# samples~EbookFREE.me~ These two samples are based on the system with the best photoelectric performance.
　　 are PBFBT4T-2OD single component film and its blend film with PCBM receptor.
　　Data processing is complete.
The background of 　　#1# sample is clean bright blue, and the sample signal mainly appears on the horizontal axis and the vertical axis.
There are three signals on the vertical axis of 　　, that is, the crystallization signal perpendicular to the surface of the substrate, corresponding to the crystal face index (100), (200) and (300), and the positions are about 0.27, 0.54, and 0.81 angstroms.
　　 There is only one signal on the horizontal axis, that is, the crystal signal on the surface of the substrate, which corresponds to the crystal face index (010), and the position is about 1.60 angstroms.
　　 And 2# sample also showed all the sample signals of 1# sample, but it was weaker than 1# sample.
　　 In addition, there is also a ring signal belonging to PCBM, which is located approximately at the minus power of 1.40 Angstroms.
　　 This shows that the PBFBT4T-2OD material is a standard face-on structure, and the charge carriers are easily transported in the vertical direction. This material is very suitable for solar photovoltaic devices.
On the contrary, if the (100) signal appears on the horizontal axis and the (010) signal appears on the vertical axis, it corresponds to the edge-on structure, and the charge carriers are easily transported in the horizontal direction. Such materials are suitable for Organic field effect transistor OLED.
　　 "Perfect."
　　 Seeing this result, Xu Qiu was determined.
　　Different characterization test results can confirm each other and finally explain the reason for the high performance of the device.
　　 The last piece of the puzzle in this work was just fit together, almost flawless.