Scanning Electron Microscope Central Facility (SEMCF) is one such facility. All students, researchers and faculty members from various science and engineering departments of the institute are free to avail the services of SEMCF as per the guidelines laid by the SEM user Committee of the institute. These guidelines are regularly reviewed from time to time. Whenever it is possible, outside users from Industries, Research & Development Organizations and other educational institutions are also allowed to avail the facility against payment.
The SEM Central Facility at IIT Delhi have ZEISS EVO Series Scanning Electron Microscope EVO 50 and EVO 18. The ZEISS EVO 50 is a versatile analytical microscope with a large specimen chamber. The EVO 50 series can handle large specimens at the analytical working distance of 8.5mm owing to a combination of the inclined detectors and the sharp conical objective lens. The class leading X-ray geometry allows for the addition of an EDS detector.
Microstructures at SEM can be analyzed for its elemental composition in more detail using EDX system. This is a non-destructive analysis and the elements and their concentration in the sample can be determined reasonably accurately. SEMCF has RONTEC’s EDX system Model QuanTax 200 which is based on the SDD technology and provides an energy resolution of 127 eV at Mn K alpha. It’s operation is free of liquid nitrogen requirement. Low Z elements like Boron, carbon and oxygen can also be routinely detected. QuanTax 200 can be used to analyze a wide variety of samples ranging from ceramic materials, powders and metals to coatings.
Sample Requirements for SEM: General Size: Any dimension (Height or Diameter): Less than 10 mm. Conductivity (Electrical): Conducting or atleast semiconducting. If sample is not electrically conducting, it will require silver or gold coating. Sample should be For EDX analysis: If the sample is a powder, make a normal button size pellet. If the sample is insulator or polymeric or electrically non-conducting it needs to be coated with carbon using flash evaporation technique.
Note : Sample should be 100% moisture free and oily sample should not be entaintained for SEM / EDX. There is no environment and low vacuum mode available in these instruments.
1. Registration process (One Time): New Registration for external users.User Verification: Upload photo of Front side and back side of valid Identity card issued by the organization (only .jpeg format, file Size less than 1 Mb, height less than 1000 pixels, width less than 800 pixels). Undertaking: Download the undertaking template ( Download Link ). Duly filled, signed and stamped form should be uploaded in .pdf format. Confirmation: An email will be sent to the user after verification of the documents.
2.Before planning to avail the Instrument facility of CRF IIT Delhi: user must visit https://crf.iitd.ac.in -> Facility -> select the desired facility from left side navigation list. Read carefully all the relevant information such as required sample type, testing charges and instrument location. Be prepared with details of the samples.
3.Log in and Click on Booking Appointment Tab: All the information relevant to testing must be filled in instrument booking form. In case user does not provide the required information the booking is liable to be rejected. User can upload the relevant existing data of their samples that might help in the measurements.
4.Sample submission & Payment Process: Once the application is submitted, the in-charge will verify the details and approve the request.External users must wait for the approval before making the payment and submitting the samples to concerned lab. After approval the payment should be made by the user. The payment transaction details need to be submitted online before appointment date time.
5.CRF Users can pay amount online using following details:
Beneficiary/Customer's Name: IRD ACCOUNT IITD
Bank Account Number: 10773572600
Bank Name: State Bank of India Branch Name: IIT Branch
Branch Code: 01077
NEFT IFSC CODE / RTGS: SBIN0001077
please write "CRF _Instrument Name" in the Remarks section while paying. Save the receipt file and upload in the crfbooking system online against your application.Payment can also made in form of demand draft in favour of " IRD ACCOUNT IITD " Payable at New Delhi.6.IIT Delhi
GST Number : 07AAATI0393L1ZI
PAN Number : AAATI0393L
1 Registration process (One Time): New Registration for internal users.
Fill in all the details in Personal Information, Supervisor Information and User Login Credentionals.
Once submitted, an email to supervisor is sent for activation of account. Once activated by supervisor, you can do the instrument bookings.
2 Before planning to avail the Instrument facility of CRF IIT Delhi: user must visit https://crf.iitd.ac.in > Facilities > select the desired facility from left side navigation list. Read ca 
refully all the relevant information such as required sample type, testing charges and instrument location. Be prepared with details of the samples.
3. Log in on CRF Booking System and Click on Booking Appointment Tab: All the information relevant to testing must be filled in instrument booking form. In case user does not provide the required information the booking is liable to be rejected. User can upload the relevant existing data of their samples that might help in the measurements.
4 Sample submission & Payment Process: Once the application is submitted, the in-charge will verify the details and approve the request.
