Our experiment rooms and facilities are shared by many members. As far as you have the right to access our lab rooms and facilities to conduct your research, you also have obligation to make efforts to keep their conditions.
Put on clean wears and clean shoes in the experiment rooms.
Return everything to the original place after use (tweezers, pens, tapes, beakers, chemicals, and so on). Do not occupy shared space for a long time. Basically, you must clean up everything you use before leaving the experiment room every day.
Your samples must be properly stored in your storage place. Drawers for sample storage are distributed to each member. When your storage place is full, you should find a box and put your old samples in it (such as cardboard box, or you can also order a plastic box). Write your name on the box and put it on shelves. Consult with lab staffs if you need more space for sample storage. When you need to keep your samples in a shared space such as a fume hood, vacuum desiccator, refrigerator, thermostat oven (80 oC box), and so on, you must put the note that tell other people "who" is keeping "what" kind of samples/chemicals until/since "when".
If you find we run out of some consumable supplies such as Kim-wipe and gloves in the experiment rooms, bring new ones from the stock place. If you find we also run short of or run out of stocks of supplies in the stock place, tell persons in charge of the month to order new ones. As for pens, tapes, batteries, and so on, Watanabe-san keeps the stocks. Get new ones from him and bring them to the experiment room. Do not leave broken tools as it is. You need to fix it or order a new one. Report it to lab staffs.
You can buy new tools, facilities, materials, and so on when they are needed. Do not hesitate to ask lab staffs when you want to buy something for your research.
Do not limit your research to what you can do in our experiment rooms with facilities we have. You should check external facilities shared in our university or facilities in other groups. Consult with lab staffs. Official communications between faculty staffs are needed before you use facilities in other groups.
High-pressure gas is quite dangerous. You MUST NOT touch gas cylinders unless you do understand the mechanism of gas cylinders and pressure regulators.
47L gas cylinders are >50 kg. They may fly around the room and cause deadly damage to you and others if the heads of cylinders are broken.
You may be choked off if a large amount of gas is emitted from gas cylinders.
General rule about valves: When a valve is fully open, it becomes stiff, making it difficult for you (or other people) to tell whether it is fully open or fully closed. If you mistakenly turn a fully-opened valve further to the direction to open, it will be broken. Please turn back a little (such as a half-rotation) from the fully-opened state when you need to leave valves open. (Sometimes you do not need to open valves largely. It depends. When you learn how to use facilities from someone, you should ask him/her how much you need to open valves.)
We use electric furnaces, hot plates, water bathes, ribbon heaters, and so on. Heating devices can cause a fire. Do not put combustible substances such as paper, organic solvent, and powder samples close to high-temperature devices. [Autoignition temperature: ethanol_365oC, IPA_399oC, acetone_465oC, wood_250oC, paper_290oC]
Do not forget to turn off heating devices after use.
Do not touch heating devices when they are hot, or your hand will be burned. Even after it is turned off and the display does not show temperature values, it may be still hot. Some tools may be broken or melt if they are put close to the heating devices.
Use chemicals in the fume hood while running the fan. Use protective wear such as gloves and eye wares.
Mixing chemicals sometimes generates hazardous gas or explosive components. Check carefully before conducting a new process.
Some chemicals dissolve glass, metal, or plastics. Use proper beakers, tweezers, and so on.
Dispose of chemicals properly according to university rules and our rules.
As for powder samples such as commercial CNTs, you must be careful to prevent inhalation.
Waste liquid disposal (updated 20190507)
You must inform Otsuka and Watanabe-san and determine a proper waste liquid tank before you start a new chemical process.
Chemical usage start/end manual (2023.04.01 updated!)
Common chemicals: Stocks of 3L ethanol, IPA, and acetone are kept in the chemical storage room in the basement. Borrow the room key from Watanabe-san. The chemical bottles are numbered. Ask him which number you should use first.
We sometimes use liquid nitrogen and liquid helium. Vaporization of them generates a large volume of gas. Be careful of choking off.
Wear protective gloves properly, or your hand may suffer from cold injury.
Be careful of electric shock. Experimental facilities, unlike household electrical goods, are sometimes not shielded enough.
Take good care when you conduct electrical works of facilities.
Do not put power strips directly on the floor or close to water. In the case of a flood or something, that may cause electric leakage and damage many facilities.
We have reservation tables for each facility.
Do not make reservations for unnecessarily long time. Report and consult with the next user when you need to extend your usage time. Refrain from sudden cancellation of your reservation especially in busy seasons. If you cannot help canceling, you should write “cancel” on the reservation table and report it to other users who are waiting.
You can find manuals of facilities in Google Drive.
Use facilities after you understand the operation procedure well. Learn it from experienced persons about three times. Incorrect operation may cause serious damage to you and facilities.
When you find any problems or anomalies in experimental facilities, report it to concerned persons, lab staffs, and everyone, for example by sending messages on Slack channels or emails to labmaru@photon.t.u-tokyo.ac.jp .
SEM, CVD, Sputter, Vac. Evapo., Furnace*2, Spin coater, Hot plate*4?, Dip coater, Bath sonicator, Tip sonicator, Magnetic stirrer, PL/Rayleigh, Raman, Analyzer2, Solar simulator, Optical microscope, Fume hood, Chemical storage shelf, Normal desiccator, N2-filled desiccator, Thermostat oven(80oC)
This room is shared with Kinefuchi Lab and Shiomi Lab.
Muffle furnace, CVD2, CVD3, high-temperature CVD*2, MoS2-CVD, AFM, TGA, FT-IR, PL, Analyzer1, AC-3, Gaschromatograh, Raman, Fume hood
This room is shared with Shiomi Lab.
You must separately dispose of trash in the experiment rooms according to university rules. You must put label stickers to indicate the contents of trash bags and bring them to the corresponding boxes in the trash collection site on the first floor.
Combustible: wiper, paper box, and so on
Check as 可燃物 on the label sticker.
Plastics: plastic bags, plastic cases, and so on
Check as プラスチック on the label sticker.
Gloves: rubber gloves and plastic gloves
Write down as その他実験系プラスチック on the メモ column of the label sticker. This must be separated from normal plastics. Put it in the gathering box of その他実験系プラスチック．
In-combustible: aluminum foils, silicon substrates, rubber, broken tools,
Check as 不燃物 on the label sticker.
Can: empty can of air-duster (It must be empty. Use up all. No need to open holes.)
Check as 不燃物 on the label sticker. Not 飲料缶.
Glass: glass vials, pieces of glass tools, and so on
Check as 不燃物 on the label sticker. (Only for 不燃物, we must use transparent trash bags. As for others, we can use both transparent and half-transparent plastic bags.)
PET bottle: bottles of DI water (Separate caps as Plastic trash.)
Check as ペットボトル on the label sticker.
Empty glass bottles of chemicals (Remaining liquid should be thrown away in the waste liquid tanks, and the bottle should be rinsed and dried. The original label by maker showing chemical name should be peeled off or blacked out by marker pens, which is for declaring the bottle was cleaned.
Check as ガラスびん on the label sticker.
Empty battery should be put in the box labeled as 乾電池 in B11A1 or given to Watanabe-san.
Cardboard box: Bring them to the back of the trash collection site. No label is needed.
As for syringes, you are not allowed to dispose of them to the trash collection place in the first floor. Report it to Watanabe-san, when you find the trash box for syringe is full.
As for large wastes (larger than 30 cm), you are not allowed to dispose of them at the trash collection place on the first floor. When you need to dispose of large waste, report it to Watanabe-san. Large wastes are gathered twice a year by the university.
Oil and water are harmful to vacuum chambers. You must wear clean gloves to avoid contamination caused by your hands when you use vacuum facilities.
Vacuum pumps have a certain working range of pressure and flow rate. Since high pressure or flow rate may cause damage to pumps, you need to be careful when you start pumping, for example by opening valves slowly or using rough pumping before main pumping. We use rotary pumps, scroll pumps, turbo molecular pumps, diffusion pumps, diaphragm pumps and so on. Learn the mechanism and working ranges of them before using them.
Some types of pressure gauges (ionization gauge) will be broken if you expose them to high pressure.
真空継手: http://www.nucleng.kyoto-u.ac.jp/people/ikuji/edu/vac/index.html