Chapter 335: DIY laboratory

After leaving Wei Xingsi's office, Xu Qiu found Wu Feifei and Duan Yun to discuss the design of the new laboratory together.
Xu Qiu also called Mo Wenlin to record the meeting. Han Jiaying was reviewing the exam, and also ran to Zhang Jiang to do synthesis, so she wouldn't bother her.
Xu Qiu said, "Senior Sister Wu Feifei, first of all, you are more experienced."
Wu Feifei did not go around the corner, and said directly: "First of all, we must establish the ownership of the laboratory. Two rooms 520 and 522, one of which is an organic laboratory, and the other is a device plus characterization laboratory. How to allocate it."
Xu Qiu answered, "This is a small problem. The areas of the two rooms are about the same size anyway. I think I can give the larger 520, how about it?"
Wu Feifei nodded and expressed no opinion.
Xu Qiu looked at Duan Yun and asked for his opinion.
"Yes," Duan Yun said casually: "Anyway, I will be graduating in one year. I guess the new laboratory has little to do with me. I will leave the drawing to me. You decide to do the rest."
Mo Wenlin wrote "520 organic, 522 devices plus characterization".
Wu Feifei continued:
After confirming the laboratory’s ownership, the next step is to plan specific details, including the laying of centralized gas supply pipelines, the specific placement of equipment and equipment, and contact the production test bench, fume hood, Renovate and contact the moving company.
Among them, the centralized air supply pipeline, fume hood and moving company are arranged by the hospital system. We can directly contact the designated company. The expenses incurred will also be paid by the hospital system, which is regarded as the school's compensation for this relocation.
However, we need to solve several other items, including the experimental bench and decoration. "
"Well, write down these points first, and wait for the final plan to be established, and then contact some of their companies. We can ask Mr. Wei for the experimental platform and decoration, and see if there are any channels. By the way, let me add... Xu Qiu continued:
"When I visited Gong Yuanjiang's research group before, I found that their glove boxes were row-by-row, so I planned to design our group's glove boxes into a similar structure, with organic spin coating on the left, evaporation test in the middle, and perovskite on the right. Spin coating.
On the one hand, it prevents the substrate from encountering air during the transfer process. On the other hand, it also prevents the organic and perovskite solvent atmosphere from polluting each other, and only an additional glove box is needed, which does not increase the budget too much. "
He has already tested this strategy in a simulation laboratory before. Although the triple glove box he proposed is more effective, the effect is remarkable. The performance of the device obtained is basically equivalent to that of Gong Yuanjiang's triple glove box.
"This is a good idea, so we don't have to grab the glove box for experimentation," Wu Feifei joked: "Now you have five people in your organic direction. I can't get you a weak woman."
"Sister, you laughed," Xu Qiu shook his head and said, "Then let's continue the discussion."
"Well... by the way, there is another question," Wu Feifei said suddenly: "This time the school attaches great importance to the safety of the laboratory, so the cylinders need to be placed in the designated cylinder cabinet, and no objects can be placed around them. The centralized gas supply proposed by the Department is also out of safety considerations."
Xu Qiu asked puzzledly: "Does centralized gas supply have anything to do with safety? There is no reduction in pressure vessels..."
Wu Feifei said, "I don’t know. Maybe after the pipes are fixed, the private connection of pipes can be reduced. Some old laboratories previously had similar safety hazards. Now they are unified and redesigned. It is an attempt to solve these problems from the source. Anyway, the school has established regulations, and we will just abide by it for the time being.
Xu Qiu nodded. The starting point of the school is indeed good. As for how effective it can be, he doesn't know how effective it can be. But doing it is better than not doing it well. If you don't do it because it's difficult or it doesn't work for a while, then the problem It will never be solved.
Wu Feifei continued: "We now need to determine the location of the cylinder first, and then we can confirm how to lay the pipeline."
"Um..." Xu Qiu thought for a moment and said, "The steel cylinders are placed in the 522 device and characterization laboratory. The 522 is a big gas consumer. Like the current Handan 216, it consumes about 20 bottles per month. Nitrogen, Zhang Jiang Organic’s laboratory is filled with a nitrogen balloon. It doesn’t consume too much nitrogen, and can’t use a bottle in a month."
"Yes," Wu Feifei nodded: "It's best to put the storage point of the steel cylinder near the door, so that it is convenient to connect the two laboratories. Xu Qiu, start with the cylinder placement and draw a sketch."
Xu Qiu took the experiment notebook and pen from Mo Wenlin's hands and began to draw.
With reference to the existing Caiyi 216 and Zhangjiang Microelectronics A502 laboratory, including Xu Qiu occasionally doing DIY in the simulation laboratory, he already has a rough laboratory prototype in his mind.
First, Xu Qiu drew a square and marked the location of the door and windows as a bird's-eye view of Room 522 from the sky.
The architectural drawings seen by Teacher Wei earlier indicated that the room area is more than 70 square meters, so the side length of the square is calculated at 8 meters for the time being.
Then, at the entrance, draw two square cylinder cabinets covering an area of ​​one square meter side by side.
The cylinder cabinet is generally capable of storing two gas cylinders. The actual style is rectangular, but the opening of the cylinder cabinet and the entry and exit of the cylinders should be considered when planning, so it should be planned as a square.
Next, next to the right half of the cylinder cabinet, Xu Qiu intends to use it for characterization testing uniformly, so he planned a circle of three large laboratory benches with concave fonts for various optical and electrical testing instruments, such as UV-vis, PL, TRPL, CELIV, EQE, etc.
An experiment table is added to the open space in the middle of the indentation, which can be used for some experimental operations, such as cutting glass sheets, or unpacking them.
Afterwards, a glass partition was erected on the left side of the indentation to divide Room 522 into two.
Among them, the right half is the characterization laboratory just planned, and the left half is the device laboratory.
In the device laboratory, three row glove boxes are placed on the wall, and the room is 8 meters long. Each glove box is about 2 meters long. With the transfer cabin in the middle, the space is also sufficient.
On the left side of the glass wall partition is placed an experiment table with a sink, on which there can be some ultrasonic cleaners, ozone generators and other equipment for cleaning the substrate.
Finally, place several medicine cabinets in the empty spaces of the device laboratory.
"It's done," Xu Qiu took a long breath, looked at his masterpiece with satisfaction, and said, "Do you have any comments about room 522."
"The overall degree of completion is good, but..." Feifei Wu added: "We need to list the pipeline locations for centralized gas supply and report to the department."
"Okay, let's do the math." Xu Qiu started to mutter some words:
"Each glove box needs a circulation pipeline, a manual gas supply pipeline, and a cleaning pipeline. The evaporation chamber needs an additional gas supply pipeline. The glove box with a nitrogen gun also needs an additional pipeline, three or four. Twelve, there is a nitrogen gun outside, and two more ports are reserved, that is, there are 15 in room 522.
Room 520 on the other side, because the fume hood provided by the school this time is relatively small, we calculated based on 8 fume hoods, each of which requires 1 interface, plus two reserved interfaces, for a total of 10 interfaces. In total, there are 25 ports, including 22 nitrogen ports and 3 nitrogen and hydrogen ports for regeneration. "
After speaking in one breath, Xu Qiu glanced at Mo Wenlin's experiment notebook. She had already recorded everything she said, so she couldn't help but glanced at her a few more times. This guy has something.
Wu Feifei looked at Mo Wenlin’s notebook, digested it, and said:
Just do it, anyway, this time it’s the department’s money, we don’t have to save too much. Once this kind of centralized gas supply pipeline is installed Now, it will be more difficult to refit later. It is always good to reserve more interfaces."
"Then I will continue to design Room 520." Xu Qiu picked up the pen again and started drawing.
The organic laboratory is relatively well planned. You can directly reduce the Zhangjiang Microelectronics A502 laboratory and copy it.
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First, there are eight fume hoods, placed in groups of four against the wall, and then two experiment tables with sinks are placed side by side in the middle of the room, and finally the oven, vacuum oven and several reagent cabinets can be planned.
After reading the two sketches, Duan Yun put forward an opinion: "The dimensions of the specific laboratory bench, glove box, oven, etc. need to be measured in detail, including the thickness of the partition of the glass wall before."
"Well, it makes sense." Xu Qiu imagined that if he just slapped his head and set the size casually, then moved the house and moved the instruments together, but found that it would be embarrassing if he couldn't put it in, and he couldn't split it in half. Put them separately.
Xu Qiu turned her head and said, "Mo Wenlin, you will be responsible for measuring the dimensions of each instrument on the side of Caiyi 216. I will hand it over to Han Jiaying from Zhang Jiang."
"Okay~" Mo Wenlin nodded in response.
"If there is no problem, let's discuss this sketch with Teacher Wei first." Xu Qiu said to the other three.