Laboratory for Advanced Materials, Devices and Applications (LAMDA)
Dr. Suhas M. Jejurikar
About LAMDA @ NCNNUM
LAMDA @ NCNNUM is a laboratory managed by Dr. Suhas M. Jejurikar from the National Center for Nanosciences and Nanotechnology at the University of Mumbai (NCNNUM), Mumbai, India. Researchers @LAMDA are interested in addressing fundamental and applied problems especially in the areas of optoelectronic materials (nitrides and oxides) by synthesizing them in thin film and various nanostructured forms, mainly using Pulsed Laser Deposition (PLD) technique, followed by fabricating the microelectronic devices to investigate and demonstrate these materials for various applications.
Members @ LAMDA
E-mail suhas.j@nano.mu.ac.in
Dr. Suhas M. Jejurikar
Assistant Professor
Professional Experience
02/2013- Present Assistant Professor, National Center for Nanoscience and Nanotechnology (NCNNUM), University of Mumbai, Vidyanagari, Kalina, Santacruz (E), Vidhyanagari, Mumbai 400 098, India.
2012- 2013, Scientist-D, National Center for Nanoscience and Nanotechnology (NCNNUM), University of Mumbai, Vidyanagari, Kalina, Santacruz (E), Vidhyanagari, Mumbai 400 098, India.
2011-2012, Visiting Scientist, Korean Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea
2010-2011, Senior Research Scientist, Department of Electrical Engineering, Indian Institute of Technology (IIT) Powai, Mumbai 400076, India.
2008-2010, Research Associate, Department of Electronics and Engineering, University of Sheffield, Sheffield, S1 3JD, UK
2007-2008, Post doctoral fellow, Institut FEMO-ST, Besancon, France.
Awards and recognitions: SERB Technology Translation Award'2020.
SERB Early Career Research Award'2016. R. K. Bhalla Award'2007.Dr. Tushar Sant
Assistant Professor
Professional Experience
08/2019 - present: Assistant Professor, National Center for Nanoscience and Nanotechnology (NCNNUM), University of Mumbai, Vidyanagari, Kalina, Santacruz (E), Vidhyanagari, Mumbai 400 098, India.
2014 - 2017: Post-doctoral scientist at X-ray Physics Group, Department of Physics, University of Siegen, Germany
2011 - 2014: Visiting scientist at Raja Ramanna Centre for Advanced Technology, Indore, India
2009 - 2011: Post-doctoral scientist at Solid State Physics Group, Department of Physics, University of Siegen, Germany
Awards and recognitions:
E-mail tushar.sant@nano.mu.ac.in
E-mail bhavmeet@nano.mu.ac.in
Dr. Bhavesh Sinha
Assistant Professor
Professional Experience
(05/2014 –till date) Assistant Professor, DST-INSPIRE Faculty (2014-2019), National Center for Nanoscience and Nanotechnology, University of Mumbai.
(03/2011 - 03/2014) Visiting Scientist, Nano-functional Powder Research Group, Functional Materials Division, Korea Institute of Material Science.
(04/2010 - 02/2011) Post Doctoral Fellow, Department of Electrical Engineering, IIT Bombay, Powai, Mumbai. (19th April 2010 – 28th February 2011) (Experience at working in class 1000 clean room and Formation of p-ZnO thinfilms by PLD)
Awards and recognitions:
DST-INSPIRE Faculty Award 2014 from Department of Science and Technology Government of India.
Selected at DESY-Hamburg to conduct experiments on PETRA III X-ray source.
Selected as a Foreign Expert at Korea Institute of Material Science on global research laboratory program (2011-2014).
Materials Research Society of India Prize for the Best Poster Paper Award for paper entitled “TG-DT analysis for carbon assisted synthesis of C:MgB2” Presented at 19th AGM of MRSI during 14th to 16th February 2008 at Thiruvananthapuram.
Research Projects and Funding
To investigate the post effects of various ionizing radiations on the physical and chemical properties of GaN grown on flexible substrate to realize flexible ionizing radiation detector.
File No. : CRG/2020/001538
Funding Agency: UGC-DAR CRS
Amount of Grant Received : Rs. :
Status of the Project : Ongoing
Project Summary:
Even today the detection of most of the ionizing radiation is done using gas filled counters which operates at very high voltages. The technique used is expensive, fragile and bulky in nature which has bottle neck its uses at larger scale. In this connection use of high purity Ge have been demonstrated. However the detectors made using Ge operates at liquid nitrogen temperature and are bulky to handle. Considering the complexity associated with these traditional detectors, use of compound semiconductor materials mainly III-nitrides are thought to be advantageous. Apart from other III-nitride material, GaN has received special attention in the optoelectronic industries. The material offers excellent physical as well as chemical properties that mainly include its band gap, large displacement energy, high thermal stability, non-hygroscopic and dense nature as well as high Z value. Due to high Z value, the GaN (and/or allowed with indium) is proposed to be the most suitable material for the detection of ultra-fast and sensitive detection of various ionizing radiations. Researchers have also suggested its use for the detection of neutron and/or gamma radiation in the nuclear reactors where the material always get exposed with the high flux of such radiations. Along with these advantages major benefits to use GaN for fabricating these detectors include the existing fabrication technology, which is already well established for the electronics and optoelectronics that can be integrate to fabricate ionizing radiation detectors. However, commercialization of GaN as a scintillation detectors is not yet realized due to various reasons. Some of the major reasons includes lack of producing high quality materials in thin/thick films and/or nanostructured forms, growth of these materials on suitable low cost competitive substrates which also include flexible substrates, homogeneous doping in GaN to tune the band gap and may more. Understanding these challenges to commercialize GaN as a scintillation material, the proposal intends to study the post effects of various ionizing radiation on the physical and chemical environment of GaN material in various forms (nanostructures, thin, thick films) as a first step before fabricating any such detector which will sustain and work under any harsh environmental conditions.
Fabrication of GaN based single pixel detectors for the detection of ionizing radiations.
File No. : CRG/2020/001538
Funding Agency: SERB-CORE
Amount of Grant Received : Rs. : 28,87,720.00
Status of the Project : Ongoing
Project Summary:
Even today the art of detection of thermal neutrons is gas filled counters, and for gamma radiation detection it is high purity Ge detector. The gas filled detectors are expensive, fragile and bulky as well as they are operated at very high voltages; whereas Ge detectors are bulky as they operate at liquid nitrogen temperatures and cannot operate without liquid nitrogen storage. Compared with these traditional detectors, the detectors made up of compound semiconductor materials mainly III-nitrides are more advantageous. Amongst various III-nitride materials, GaN along with its alloys with aluminum and indium has received special attention towards its use in optoelectronic industries. The unique combination of its physical as well as chemical properties which include band gap, large displacement energy, high thermal stability, high Z value and the density associated with it, GaN can also be utilized as either scintillation material and/or a semiconductor detector for detection of either thermal neutrons or gamma radiations. One of the major benefits to use GaN based materials for detecting towards high energy radiations is its adaptability with the existing technology, which is already well established for the electronics and opto-electronics. Along with this for ultra-fast, non-hygroscopic, dense and highly sensitive neutron detection usually GaN is heavily doped. The most common dopant elements to create appropriate radiation detection are In, Fe, B and Li, where indium is found to be the most suitable dopant for the detection of neutron and gamma radiations due to its high Z value. Incorporation of indium in to GaN is accepted to be well proven technology. Researchers have proved that such materials may be suitable for the neutron and/or gamma radiation detection, mainly in nuclear reactors where the materials always get exposed with the high flux radiations. However commercialization of GaN detectors mainly for detection of high energy radiations is not yet realized due to many reasons, which include lack of high quality materials, growth on suitable low cost competitive substrates, homogeneous doping for band gap engineering. Understanding these challenges towards the commercialization of GaN material and related technology towards its use in neutron and/or gamma radiation detection, herewith we propose the growth of GaN material using unique deposition system designed and developed i.e. plasma assisted laser ablation technique followed by fabrication and operating demonstration of single pixel GaN (doped with In) detectors having a) sandwich structure b) mesa structure and c) Double-Schottky contact structure respectively. The proposal intends detailed study on effect of radiation damage on fabricated detectors in order to design, demonstrate and deliver the GaN detectors for ionization radiations which will sustain and work under harsh environmental conditions.
Method and apparatus of plasma enhanced laser ablation chamber for nitride growth.
File No. : ECR/2016/000049
Funding Agency: SERB-TETRA
Amount of Grant Received : Rs. : 30,00,000.00
Status of the Project : Ongoing
Innovation:
Looking at challenges such as user-friendly, low cost, efficient method to growth high quality III-Nitrides in various forms at relatively low temperature; we propose newly designed technique providing following advantages over existing methods
a. Use of vacuum furnace provides precise and uniform control on temperature of environment inside growth chamber which also has control on the flowing gas rate and required pressure.
b. Use of short wavelength-high energy laser ablates all type of materials independent of their melting point controlling stoichiometry of doped nanostructures/thin films as a requirements.
c. Uniform plasma generated inside the vacuum furnace along with the laser ablation provides better control over the stoichiometry.
d. Control over the phase composition of the materials, eventually at low temperature conditions.
Combining these parameters together the apparatus designed enables growth of quality III-materials which are very difficult to prepare.
Growth of catalyst free GaN and its ternary alloyed (Al, In) nanostructures using plasma enhanced laser ablation (PELA) technique.
File No. : ECR/2016/000049
Funding Agency: SERB-ECRA
Amount of Grant Received : Rs. : 40,29,874.00
Status of the Project : Ongoing
Project Summary:
The objectives of research proposal is to develop and implement the cost effective and user friendly “Plasma Enhanced Laser Ablation (PELA)” technique for the grow of high quality GaN and its ternary alloyed (Al, In) nanostructures. Knowing problems associated with the quality of crystal and reformed physical-chemical properties mainly observed in catalyst assisted GaN nanostructures, herewith we propose to synthesis high quality GaN nanostructures using PELA route without using any catalyst usually required for growth. To meet the huge market demands and lower down the manufacturing cost we also propose to demonstrate precisely controlled growth of GaN nanostructures (mainly nanorods, nanopyramids) on low cost substrates for e.g. Si using the same technique. Further to increase the “light emitting efficiency”, which is in a demand; herewith we have propose to grow precisely controlled non-polar plane GaN nanostructures. As it is suggested that the internal electric field and bias direction which are orthogonal along the non-polar plane (i.e. (1120)) can cause enhancement in the recombination process may lead to increase the light emitting efficiency. In connection with this homogeneous doping within the alloyed GaN nanostructures synthesized using PELA will be studied in order to understand the band gap engineering. Finally electrical properties and the stability of these structures will be studied by demonstrating the nanodevices (for e.g. field effect transistors, Deep UV detectors, etc.) fabricated on synthesized nanostructures.
Ph.D. Students
Teacher FellowM.Sc. (Physics)Pune University
JRF (SERB-CORE)M.Sc. (Physics)University of Mumbai
PA (SERB-TETRA)M.Sc. (Nanoscience's)University of Mumbai
PA (SERB-TETRA)M.Sc. (Nanoscience's)University of Mumbai
Alumni
Dr. Prashant Borade
Ph.D. (Nanosciences and Nanotechnology)
University of Mumbai
R&D Division,
Umedica Analyticals
Dr. Madiha Khan
Ph.D. (Nanosciences and Nanotechnology)
University of Mumbai
Our in-house innovations and developments
PELA for nitride growth
The innovative plasma enhanced laser ablation (PELA) chamber designed by us enable nitride thin films/nanostructured growths at relatively low temperature conditions, which otherwise are highly difficult.
Swagelok cell
To study battery materials viz. anode, cathode and the separator, the assembly is very useful. This is a low cost homemade assembly which can be use to fabricate the half battery cell for material investigations.
HFCVD for UNCD growth
Designed the Hot Filament Chemical Vapor Deposition (HFCVD) for KIST, South Korea for the synthesis of Ultra-Nanocrystalline Diamonds (UNCD) at industrial scale.
Rajbai Tower
To demonstrate the state-of-the-art facilities at the center, the expertise available with the group and to showcase our strengths towards the micro/nano fabrication capabilities. The scanning electron microscopy (SEM) image is of Rajabai Tower (one of Mumbai's landmarks) lithographed on one of the Tungsten tips fabricated inhouse for scanning tunneling microscope (TEM).
IR-Focal Plane Array
As a member of IIT-B team, developed the process flow to fabricate focal plane arrays to develop the hydrothermal camera for ISRO (one of the ambitious projects of Prof. Subhananda Chakrabarti, IIT-B) for their CHANDRAYAN-I mission.
Probe station
Home made low cost probe station to measure micro/nano structured electronic devices transport properties.
Research Area : Materials and devices for optoelectronic applications
Niride Semiconductors
III-V semiconductors especially Gallium Nitride, Indium Nitride and Aluminum Nitrides due to their unique physical and chemical properties have proven them as one of the promising candidates towards realization of futuristic technological developments. Researchers have already demonstrated its use mainly in the fields optoelectronic as well as in high power electronics. It is observed that the performance of these devices are strongly depends on a) the growth techniques used, b) the growth parameters employed and c) the contact materials used to fabricate these devices (mainly the conduction mechanism). However the traditional growth techniques are observed to suffer from major disadvantages such as very slow deposition rate, complexity associated with systems, possibility of epitaxial growth only under ultrahigh vacuum conditions, making the overall growth process and systems extremely expensive. Along with these lack of suitable cost competitive lattice matched substrates still remained one of the bottlenecks for their uses mainly in fabricating wearable and flexible devices i.e. futuristic applications. This is believed to be the gray area to continue with the nitride research.
Oxide Semiconductors
Depositing amorphous oxide semiconductors is another area of research interest mainly to fabricate wearable and flexible devices mostly by following room temperature process on low cost templates such as plastics/polymer sheets. In this connection obtaining and having control on the electrical conduction in amorphic material is challenging than the crystalline once. Synthesis of ultra wide band gap amorphic semiconductors is another important and challenging research area of interest. Today their applications extend to integrate various power devices with low cost large, flexible substrates, which makes these materials to understand at fundamentally as well.
Micro-Nano fabrication
Our team is expertise with micro/nano fabrication techniques to fabricate devices aiming uses in defense, optoelectronic as well as medical applications, to understand various fundamental mechanisms on which they perform better .
Research Papers
2022
Low temperature growth of semi-polar InN (1011) on non-crystalline substrate by plasma-assisted laser ablation technique
Sandip Hinge, Tahir Rojgoli, Tushar Sant, Vaibhav Kadam, Kashinath Bogle, Suhas M.Jejurikar,
Applied Surface Science, https://doi.org/10.1016/j.apsusc.2022.152519
2021
K Date, H Bhatkar, S Jejurikar, T Sant
Applied Surface Science Advances 5, 100107.
MoS2 Nanosheet-Modified NiO Layers on a Conducting Carbon Paper for Glucose Sensing
PA Borade, MA Ali, S Jahan, T Sant, K Bogle, R Panat, SM Jejurikar
ACS Applied Nano Materials, https://doi.org/10.1021/acsanm.1c00122
Luminescent behavior of pulsed laser deposited Pr doped ZnO thin films
A Mandal, SK Adhi, BP Joshi, SD Shinde, AG Banpurkar, AV Limaye, ...
Physica B: Condensed Matter, 413202.
2020
Paper based photo-detector using nano-crystalline lead sulfide thin film
PM Khanzode, DI Halge, VN Narwade, KD More, S Begum, S Taha, ...
AIP Conference Proceedings 2269 (1), 030104.
K Mala, M Wahid, SW Gosavi, SI Patil, SM Jejurikar
Surfaces and Interfaces 20, 100585.
K Mala, Y Jadhav, W Malik, D Late, SI Patil, SM Jejurikar
Surfaces and Interfaces 19, 100476.
S Begum, VN Narwade, DI Halge, SM Jejurikar, JW Dadge, S Muduli, ...
Materials Research Express 7 (2), 025013.
Photocatalytic performance of ZnO carbon composites for the degradation of methyl orange dye
PA Borade, JS Suroshe, K Bogale, SS Garje, SM Jejurikar
Materials Research Express 7 (1), 015512.
SM Jejurikar, JW Dadge, KA Bogle, VN Narwade, DI Halge, S MUDULI, ...
IOP Publishing
Before 2020
Nano-crystalline CdS thick films: a highly sensitive photo-detector
S Munde, N Shinde, P Khanzode, M Budrukkar, P Lahane, J Dadge, ...
Materials Research Express 5 (6), 066203.
Ultrananocrystalline diamond decoration on to the single wall carbon nano tubes
B Sinha, D Late, SM Jejurikar
Applied Surface Science 418, 401-405.
B Bhattacharyya, A Sharma, B Sinha, K Shah, S Jejurikar, ...
Scientific reports 7 (1), 1-109
P Borade, KU Joshi, A Gokarna, G Lerondel, P Walke, D Late, ...
Materials Chemistry and Physics 169, 152-157.
P Borade, KU Joshi, A Gokarna, G Lerondel, SM Jejurikar
Nanotechnology 27 (2), 025602.
Carbon nanoflake growth from carbon nanotubes by hot filament chemical vapor deposition
SC Sahoo, DR Mohapatra, HJ Lee, SM Jejurikar, I Kim, SC Lee, JK Park, ...
Carbon 67, 704-711.
SM Jejurikar, SD Shinde, VG Sathe, KP Adhi
AIP Conference Proceedings 1391 (1), 92-94.
Growth Kinetics Study of Pulsed Laser Deposited ZnO Thin Films on Si (100) Substrate
DN Bankar, SM Jejurikar, KP Adhi, AV Limaye, AG Banpukar
AIP Conference Proceedings 1391 (1), 101-103.
Pulsed laser deposited Ga doped ZnO/SiOx/Si (100) thin films and their field emission behavior
SD Shinde, SM Jejurikar, SS Patil, DS Joag, SK Date, MA More, S Kaimal, ...
Solid state sciences 13 (9), 1724-1730.
S Dey, S Jejurikar, SK Bhattacharya, A Banerji, KP Adhi, ...
Journal of Applied Physics 108 (9), 094510.
Anomalous n-type electrical behaviour of Pd-contacted CNTFET fabricated on small-diameter nanotube
S Jejurikar, D Casterman, PB Pillai, O Petrenko, MM De Souza, ...
Nanotechnology 21 (21), 215202
Understanding the role of the insulator in the performance of ZnO TFTs
SM Jejurikar, MM De Souza, KP Adhi
Thin solid films 518 (4), 1177-1179.
S Dey, SM Jejurikar, KP Adhi, CV Dharmadhikari
Applied Physics Letters 93 (9), 093510.
Surface and transport studies on La {sub 0.7} Ba {sub 0.3} MnO {sub 3}: SnO {sub 2} bilayer
J Mona, H Mamgain, S Jejurikar, RR Rawat, V Ganesan, RJ Choudhary, ...
Applied Surface Science 254.
Surface and transport studies on La0. 7Ba0. 3MnO3: SnO2 bilayer
J Mona, H Mamgain, S Jejurikar, RR Rawat, V Ganesan, RJ Choudhary, ...
Applied surface science 254 (15), 4808-4812.
Impact of aluminum nitride as an insulator on the performance of zinc oxide thin film transistors
MM De Souza, S Jejurikar, KP Adhi
Applied Physics Letters 92 (9), 093509.
SM Jejurikar, PM Koinkar, MA More, DS Joag, KP Adhi, LM Kukreja
Solid state communications 144 (7-8), 296-299
SM Jejurikar, AG Banpurkar, DN Bankar, KP Adhi, LM Kukreja, VG Sathe
Journal of crystal growth 304 (1), 257-263
Pulsed laser deposited nanostructured InN thin films as field emitters
KP Adhi, S Harchirkar, SM Jejurikar, PM Koinkar, MA More, DS Joag, ...
Solid state communications 142 (1-2), 110-113.
Performance of ZnO TFTs with AlN as Insulator
MM De Souza, RB Cross, S Jejurikar, KP Adhi
MRS Online Proceedings Library (OPL) 1035
SM Jejurikar, AG Banpurkar, AV Limaye, SK Date, SI Patil, KP Adhi, ...
Journal of applied physics 99 (1), 014907.
SM Jejurikar
Pune
Collaborators
Prof. Rahul P. Panat
https://www.meche.engineering.cmu.edu/directory/bios/panat-rahul.html
Prof. Gilles Lerondel
Dr. Anisha Gokrana
https://recherche.utt.fr/research-directory/gilles-lerondel
Dr. Manoj Kesaria
https://www.cardiff.ac.uk/people/view/1250590-kesaria-manoj
Dr. Pankaj Sagdeo
https://iiti.ac.in/people/~prs/