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X-ray Photoelectron Spectroscopy (XPS) Sonipat Campus

X-ray Photoelectron Spectroscopy (XPS) is one of the most widely used surface analysis technique. This technique is based on the photoelectric effect and the surface of the sample material is bombarded with a beam of high energy X-rays (< 1 keV) and the kinetic energy of the emitted electrons are measured. The emitted electron is a result of the complete transfer of the X-ray energy to the core level electron. The photoelectron spectrum is recorded by counting the emitted electrons over a range of kinetic energies. Two major key points of this technique are the surface sensitivity and the ability to identify chemical states of the elements present in the sample. In materials, it is the surface that interact with other materials and hence studying the surface is very important. XPS can be used to detect all elements, except hydrogen and helium; and is useful for a range of materials from metals to semiconductors and from plastic to textiles. Ultraviolet photoelectron spectroscopy (UPS) utilizes X-ray photons of small energy (10 – 50 eV) to excite the sample surface and gather information about the valence band with higher sensitivity and energy resolution.

Company : Kratos Analytical Ltd 
Model :
AXIS Supra
Specifications X-ray sources
Monochromatic X-ray source: Al Kα – 1486.6 eV
Dual Al Kα / Mg Kα achromatic X-ray source
XPS Features :
  • Large and selected area spectroscopy
  • Ultraviolet photoelectron spectroscopy
  • Ion sputter depth profiling
  • Parallel imaging for lateral distribution of surface chemistry
  • Coaxial low energy electron gun for charge neutralization of insulating sample 
  • Optional sample holders
  • ESCApe software for automated acquisition and processing
  1. Insight into the chemical composition, elemental and chemical distribution of species, defect sites and functional groups
  2. Surface chemistry of 2D materials and nanomaterials
  3. Biomaterials
  4. Catalysis
  5. Thin films and multilayer films
  6. Surface properties of wood, wood fibre and bio-polymer samples
  7. Polymers
  8. Battery materiall
Sample requirements for XPS
Testing Charges (Click here)

How to contact

Lab-Physical Location: 

Lab # 1, Central Research Facilities,
IIT Delhi Sonipat Campus Rajiv Gandhi Education City, Rai, Sonipat – 131029, 
Landmark: Near Ashoka University

Lab Coordinator

Prof. Sameer Sapra
Department of Chemistry
Head, Central Research Facility
Indian Institute of Technology Delhi
Email :

Operational In-charge

Dr. Atul Kumar Singh
Principal Project Scientist

Operational In-charge

Principal Project Scientist

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External users 

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 -> 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
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 
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