The nanotech research facility at PSGIAS consists of state-of-art equipments for nano material synthesis, characterization and fabrication. Advanced high tech infrastructure and instruments for research in the field of nanoscience and nano technology are situated at various laboratories.
Revised analysis charges for testing and consultancy
Job request form
The JEOL JEM 2100 High Resolution Transmission Electron Microscope (HRTEM) provides one of the best-in-class solutions to problems in diverse fields ranging from Materials Science to Biology. This microscope enables to view lattice resolution of 0.14 nm and point-to-point resolution of 0.19 nm with the following features
The HRTEM facility has a full range of Gatan sample preparation equipments for TEM specimen preparation in addition to the basic facilities such as carbon and/or formware coated copper grids.
Minitom low speed diamond saw
To slice the sample up to 500 micron
Ultrasonic disc cutter
To make 3mm diameter discs from brittle samples
Dimple grinder
To make a dimple in the sample having thickness around 15 micron at the centre
To get the sample thickness upto 10nm
Twin-Jet Electro-polisher
Electro-polishing is a well-known technique, mostly used to prepare (inter)metallic samples, because these materials are conducting, too soft for crushing, and easily damaged by conventional ion milling
TEM specimen cross section kit
To prepare cross section samples
Specimen lapping kit
To grind the sample
The instrument is capable of performing multimode operations especially for analyzing surface characteristics with high precision and resolution. It is possible to carry out experiments in air, vacuum as well as in liquids in controlled environment. The added new generation electronics provides operations even in high-frequency modes.
Nanosurf AFM and STM is user friendly, compact instrument used for surface characterization of nano and microscale materials in material science and life science disciplines which supports
Scanning electron microscope (SEM) is a non-destructive technique that uses an electron beam to analyze surface details down to nano-scale. PSGIAS has EVO 18 model with low vacuum facility and ALTO 1000 cryo attachment for biological, hydroscopic and sensitive samples.
Empyrean, Malvern Panalytical
The Empyrean Series III Diffractometer is the first intelligent,multipurpose diffractometer with innovative features which allows the largest variety of measurements.
The Bragg-Brentano High Definition High Intensity Incident Beam Optics is a unique optical module from Malvern Panalytical analysis of Powder, Nano Material & Thin Film without any change over
Bragg-Brentano HD is a Special Unique
incident beam optic offering from us for Bragg-Brentano Focusing Geometry & parallel Beam Geometry measurements with an energy resolution of about 450 eV with the high speed detector offered, replacing the incident beam Ni Beta-filter With improved peak-to-background ratio and better low angle
performances.
X-Ray sources: Cu Kα (λ = 1.54 Å) (default)
Confocal Raman Microscope with AFM imaging (WiTec alpha 300, Germany) installed at PSG Institute of Advanced Studies is an integrated system with high resolution nanoimaging capability. It can be mainly used for chemical analysis at sub-micrometer scale.
The confocality of the optical design facilitates excellent depth resolution and makes the generation of 3D Raman images and depth profiles easily with a Raman Spectral range of 50 cm-1 – 4000 cm-1. Confocal micro-Raman spectroscope has features such as, Single-point spectra acquisition, Single-point depth profiling and 3D imaging and depth profiling. The advantage of an integrated system with a combination of ultra-high topographic and lateral resolution of AFM with Raman spectroscopy provides a more comprehensive understanding of the samples; not only the chemical information, but also structural and topographic information acquired at the same time and from the same sample area.
The system is integrated with a motorized stage as well as high resolution piezo XYZ mapping Stage with AFM imaging capability. The instrument is equipped with 355 nm and 532 nm lasers as UV Excitation Laser source for PL analysis and VIS Excitation Laser source for Raman analysis respectively. Using optical pre-inspection by means of various illumination and detection techniques (e.g. bright field, dark field, polarization, fluorescence, etc.) the area of interest for the AFM/Raman imaging can be easily determined. The system is capable of measuring the Raman spectra of wide variety of samples including amorphous, crystalline, polymer or liquid/biological samples.
Contact : hall@psgias.ac.in,
Dr. Anuradha M Ashok – anu@psgias.ac.in
Hall Effect Measurement Systems plot concentration versus temperature, mobility versus temperature, resistivity versus temperature, conductivity versus temperature, and Hall coefficient versus temperature. The HMS3000 & temperature controller HT55T5 includes software with I-V curve capability for checking the ohmic integrity of the user made sample contacts. The systems ramp to each user defined temperature, stabilize, makes the measurement and then plots the various temperature dependent material electrical properties.
Instrument : HMS 3000 from Ecopia Corp, South Korea with high temperature sample stage HT55T5 with a magnetic field of 0.5Tesla
Nanotech research innovation and incubation centre at PSGIAS has commissioned Keysight B1500A parametric analyzer with Cascade EPS150 Triax EDU probe station for device characterization.
Contact : tgdsc@psgias.ac.in,
Dr. Anuradha M Ashok – anu@psgias.ac.in
TGA : mass changes, temperature stability, oxidation/reduction behavior, decomposition, corrosion studies, compositional analysis and thermokinetics.
DSC : melting/crystallization behavior, solid-solid transitions, polymorphism, degree of crystallinity, glass transitions, cross-linking reactions, oxidative stability, purity determination, specific heat and thermokinetics
Simultaneous Thermal Analysis generally refers to the simultaneous application of Thermogravimetry (TGA) and Differential Scanning Calorimetry (DSC) to one and the same sample in a single instrument.The advantages of the instrument are: The test conditions are perfectly identical for the TGA and DSC signals (same atmosphere, gas flow rate, vapor pressure on the sample, heating rate, thermal contact to the sample crucible and sensor, radiation effect, etc.).
Instrument : STA449 F3 Jupiter from Netzsch, Germany
Sample quantity : 5 mg
Atmosphere : Nitrogen, Air, Argon
Heat ramp :20 K/min
Temperature :Upto 773 K (Aluminium crucible), 1473 K (Alumina crucible)
ZEM3 M10 simultaneous Seebeck and electrical resistivity measurement system:
Contact : Dr. Anuradha M Ashok – anu@psgias.ac.in ,
ZEM 3 M10 is capable of carrying out simultaneous measurements of Seebeck coefficient and electrical resistivity of thermoelectric materials with high reproducibility. It can measure a wide range of samples including semiconductors, oxides and metals at a temperature range between 50 oC to 1000 oC.
The sample holder uses a unique balance contact mechanism, permitting measurement of high reproducibility. V-I plot measurement can be made to judge if the lead is in intimate contact with a set sample. The system automatically examines whether the contact of the probes with a sample ohmic or not, and finds and uses the best value of electric current to determine the resistivity of the sample without influence of heat transfer.Measurement is controlled by a computer, permitting automatic measurement with each temperature difference at a specified temperature and elimination of dark electromotive force.
Measurement technique Seebeck Coefficient: Static DC method
Electric Resistance: Four- Probe method
The Ocean HDX spectrofluorometer uses a superior optical bench design, optimized components and precision engineering to maximize optical resolution, increase throughput, reduce stray light and maintain thermal stability for integrated, industrial and research applications. HDX has a back-thinned CCD array and “High Definition Optics” design to deliver an exceptional level of spectral performance for a compact, UV-Vis-NIR spectrometer.
The MicroWriter ML® is photolithography machine designed for rapid prototyping and small volume manufacturing in R&D laboratories and clean rooms. MicroWriter ML®3 is is a compact, high-performance, direct-write optical lithography machine .
The machine is placed in yellow class 1000 clean-room.
Faculty In-charge : Dr. B. Geetha Priyadarshini
75 sq. m. of Class 10000 and 170 sq. m. of Class 1000 clean room housing facilities for hybrid renewable energy systems, Flexible electronics, smart textiles and health care devices.
Custom built for developing composite thin film or multilayer films with co-sputtering and co-evaporation of metals, organics and oxides with substrate heating facility with the following sources integrated in DANVEC glovebox commissioned in class 10000 clean room. Parylene coater provides conformal coating of fabricated devices to protect the device from environmental contamination as well as incorporates biocompatibility for implantable devices.
Key features:
Faculty In-charge : Dr.SebinDevasia
The Solar Energy at Nanotechnology Research Innovation and Incubation Centre at PSGIAS is on different kinds of solar cells ranging from Crystalline Silicon Solar Cells, CZTSSe based thin film solar cells, Dye Sensitized Solar Cells, Perovskite Solar Cells, Organic Solar Cells, Organic-Inorganic Hybrid Solar Cells. The lab is well equipped with a thermal evaporator in laminar flow hood for Metal, Oxides, Organics and Dielectrics evaporation, Glove Box, Spin Coater, UV Source for Photolithography, Solar Simulator and Keithley Source Meters.
Faculty In-charge : Dr. P. Biji
is used for the electrical characterization of the conducting/semiconducting thin films. The built-in voltage source simplifies determining the relationship between an insulator’s resistivity and the level of source voltage used. It is well suited for capacitor leakage and insulation resistance measurements, tests of the surface insulation resistance of printed circuit boards, voltage coefficient testing of resistors, gas sensing studies, solar cells studies and diode leakage characterization. Instrument is provided with 2 probe and 4 probe set up for electrical measurements.
is used to disperse the materials in a solution phase. The SS velocity horn immersed into the solution produces high frequency vibrations which are used to beak the materials by cavitation process. This process give raise to intense local pressure waves and micro streaming of liquid round the points to collapse. This machine equiped with 500 watts, 20kHz automatic tuning energy monitor, digital wattmeter, microprocessor based programmable LCD screen.
is used to create, modify and study thin films as monolayer at air-water interface for varied applications. Using this instrument, we can fabricate mono/multilayers of amphiphilic molecules, nanoparticles, nanowires or microparticles that reside at air-water interface. The thin films can be directly transferred onto suitable substrates or device structures.
is used to coat materials over a substrate of sub micron thickness. Mainly used to make thin films of polymers, colloids, nanomaterials and photoresist etc with uniform thickness. The process involves deposition of small puddle of fluid resin onto the centre of a substrate and then spinning the substrate at high speed. Centripetal acceleration will cause the resin to spread to and eventually off, the edge of the substrate leaving a thin film. The current model is dedicated tabletop device to spin small substrates upto 150 mm diameter with 100-*12000 RPM speed.
Faculty In-charge : Dr. R. Selvakumar
Consultancy and Testing Charges
Nanobiotechnology laboratory is involved in Microbial based bio remediation research, biosensor development, synthesis and application of nanomaterials for water purification, and effluent treatment.
Wavelength: 312nm & 360 nm, Epi white illumination, Ethidium Bromide Filter-CCD camera 1D image analysis and colony counting software
Vertical, Submarine gel electrophoresis units with Power packs
Max speed : 30,000 rpm. ; Max rcf: 65,400xg; Max Capacity:6×85 ml Temperature: -20 to +40°C,
Cleanair Class II Type A2 Biohazard Safety Cabinet; Model No: CBS 1200-II-A2 Working Size: W 1200 x D 600 x H 600 mm; Along with Virus Burnout unit; 70% re-circulation and 30% exhaust with incinerations; Particle Retention- 0.3 Micron & above
Primo Star” with Digital Photo-micrography attachment includes Digital Camera Adapter P95 M37/52×0.75 for “Primo Star” and Digital Camera- Canon 10.0 megapixels
Temperature range ambient to 110° C controlled to + 0.2° C by solid – state time proportional temperature controller cum digital display
6 – 60ml/h (in I.D.1/O.D.3 tube) during running with flow indicator.
ORBITEK ® – LE
With Universal Tray and 25 Clamps to hold 250 ml Flasks
Temp range: 15 °C to 60 °C)
Rockymax, Tarsons Maximum RPM (< 50), i.e. shacking speed at maximum strokes per minute (Digital). Platform size 30x30cm; timer: 99hrs 99min (Digital).
230 Ltrs, Double Door, Frost Free LG Model: GL- 241NT5 with stand
Cell frost -Model No: BFS 150; Capacity : 148 liters Dimension: 20x24x48 (WxDxH); Temperature: – 17 °C to -24°C (purchase in process)
With Philips UV lamp
Purchase in process
Thermo fisher-USA Detection of fluoride, nitrate and ammonia in water at ppb to ppt level
Merck arsenic, nitrate, fluoride detection kits Semi quantitative kits
Model No: ISA-5; W 605 mm x D 605 mm x H 605 mm; 224 Ltrs with aluminium inner chamber Temperature upto 70° C
Autoclave preset automatic digital model.
Spinix- Maximum speed should be >3000 RPM.
Fixed speed of 6000 RPM / 2000g. Microcentrifuge – 6 places rotor for 1.5ml tubes.
Faculty in-charge : Dr. Geetha Priyadarshini
Maximum Speed – 400 RPM
Vials – WC, Stainless steel, Zirconia.
Balls (Ø10 mm) – WC, Stainless steel, Zirconia
Maximum Temperature – 900°C
Atmosphere – Argon, SF6 and CO2
Casting – Bottom pouring
Maximum Temperature – 1100°C
Maximum Stirrer speed – 1500 RPM
Composites – Al/SiC, Al/Graphite, Al/MgAl2O4, Al/MgO, Al/TiB2 and Al/B4C
Maximum Temperature – 1100°C
Heating Element – Kanthal
Atmosphere – Air
Maximum Temperature – 1400°C
Heating Element – Silicon Carbide
Atmosphere – Air
Application: Thin oxide films can be coated on substrates by spray pyrolysis method
Specimen temperature: 600° C
Work area: 300 x 300 mm
Spraying rate : 1 liter/hr (max)
Application : Various materials (both nano and bulk) can be prepared under
various gas atmospheres
Maximum working Temperature: 1450°C
Sample area: 150 x 70 mm
Faculty In-charge : Dr. R. Selva Kumar
Indigenous electrospinning facility with flat plate and rotary drum collectors which can produce nanofibres from various organic and inorganic materials.
Faculty In-charge : Dr.R. Pavul Raj
Model: Mbraun Unilab (1200/780)
Application: The Glovebox provides a dry and inert atmosphere to carry out air and moisture sensitive reactions.
Model: 96000, 150W.
Application: Offers the light similar to solar radiation. Used for testing the solar cells efficiency.
Application: To settle down the Nanoparticles
RPM: 4900
Capacity: 6 x 15 ml
Application: Electrochemical work station is a sophiscated instrument consisting of five channels. It consists of a potentiostat with a booster connected for low and high current applications. Using this instrument, we can perform testing on fuel cell and water electrolyser electrodes using techniques like cyclic voltammetry, Electrochemical Impedance Spectroscopy and corrosion studies. Charge – discharge measurements of batteries can also be performed using this work station.
Application : To prepare Nanomaterials
Operating temperature: 220 deg C (max)
Frequency: 2.45 GHz
Faculty In-charge : Dr.R. Selva Kumar
Faculty In-charge : Dr. P. Biji
The Nanosensor Laboratory is equipped with the state-of-art facilities for fabrication, testing and calibration of gas sensors and electrochemical sensors. The sensor group focusses on implementing innovative ideas based on Nanotechnology to realize nanosensor devices for real time applications.
Faculty In-charge : Prof. K K Venkataraman
A cyber-physical system is a mechanism that is controlled or monitored by computer-based algorithms, integrated with the Internet and its users. These systems will be able to deliver new levels of performance and efficiency in physical processes. Cyber-physical systems engage with the real world in real time and complimented with Internet of Things (IoT) has applications in every engineering domain. Interesting applications of Cyber-Physical systems include Healthcare, Robotics, Automotive, Industry 4.0 applications and many more,
The electronics’ interface that handles the sensor signals and convert them for display are enabled
for viewing/analysisng through the IoT platform using Bluetooth. The inputs of the system are
standardized to handle resistance variation or voltage variation from sensor.
High end ICU ventilator has been developed with 15” touch screen, ARM micro controller board,
Precision pneumatics and a special weaning algorithm. This unit is now interfaced to outside
world through Wi-fi for emergency communication to nurses, analysis on the network and the health of the unit.
The project was carried out in a local industry, to reduce the risk factors in isolated areas having large gas installations by detecting the leakages and displaying the status on a continuous basis. Leakage of gas can occur at multiple points in the same installation. Hence multiple sensors are interfaced to detect the leakage and transmit the signals to the base stations located far away. Using microcontrollers, multiple sensor values are received and processed. The processed data is encoded and transmitted to the base using wireless protocol where another microcontroller system decodes it and gives the respective sensor status. The system also provides an audio and visual warning when leakages are detected and since the time taken to detect is low due to high speed processing, the leakage situations are brought under control with minimum or no damage. This project is an economical and efficient method to reduce gas leakage risk in large instlllations using latest IoT technologies and monitoring anywhere in the web.
Faculty In-charge : Dr. Anuradha Ashok
