Prof. Sandeep Chhoker

Education

M.Sc (IIT Roorkee), PhD (IIT Delhi), 

Biography

Dr. Sandeep Chhoker has done MSc and PhD from IIT Roorkee and Thin Films Laboratory, Physics Department, Indian Institute of Technology, Delhi respectively. Dr. Sandeep Chhoker joined JIIT in July 2010 as lecturer. He worked as Assistant professor until 2018 and further as Associate Professor during 2018-2024. He is an experimental condensed matter physics whose research domain involves study of some complex oxides and chalcogenides thin films for optical, sensing, catalysis and energy applications. he has guided several PhD, MPhil, MSc and UG thesis/dissertations. He has also carried out research projects funded SERB and institutional grant. He has active collaborations at India and abroad.

Professional Achievements

• Young Scientist scheme (Fast Track) project grant by SERB, DST in 2016
• DST and CSIR Travel Grant  to Nagano, Japan 2008
• Best Poster Award, Advanced Nanomaterials  (ANM), IIT Bombay, 2008
• Best General Secretary award, Student Affair Council , IIT Delhi, 2007
• CSIR JRF and SRF in 2003 and 2005; Qualified for SPM CSIR (Top 20% of CSIR-JRF 2002)
• Merit scholarship during MSc 1^st year at IIT Roorkee (2001)

Detail of Research project:

• (1) Project Title: Development of Carbon nanodot composite for waste water remediation.
• Project cost: Rupees 1.00 (Lakhs)
• Granting Agency: DRID (JIIT)
• (2) Project Title: Structurally manipulated stannate nanostructures for optoelectronic and magnetic applications
• Project cost: Rupees 10.98 (Lakhs)
• Granting Agency: DST (SERB)
• Scholar profile: https://scholar.google.com/citations?hl=en&user=0AsrELsAAAAJ&view_op=lis...
• Scopus Profile: https://www.scopus.com/authid/detail.uri?authorId=24586939600

Publications

International Journals:

• Chandresh Kumari, Sandeep Chhoker, Pankaj Sharma, Thermal stability and crystallization kinetics of Er-doped Ge–Sb–Se chalcogenide: a DSC study, 130 (3),164 , Applied Physics A, 2024 (Indexed in Scopus, Impact factor: 2.5)
• Chandresh Kumari, Pankaj Sharma, Sandeep Chhoker, Photocatalytic activity of quaternary chalcogenide for methylene blue degradation, 2995 (1) AIP Conference Proceedings, 2024
• Saurabh Rawat, Priyanka Bamola, Shreya Negi, Karishma, Chanchal Rani, Shivani Dangwal, Archana Mishra, Manika Khanuja, Arvind Yogi, Sandeep Chhoker, Mohit Sharma, Charu Dwivedi, Rajesh Kumar, Himani Sharma Light assisted Ag and Pd MoS2 hybrid gas sensors for room temperature detection of Ammonia, 7(1), 746, ACS Applied Nano Materials 2023 (Indexed in Scopus, Impact factor: 5.9)
•  Tanushree Ghosh , Love Bansal , Suchita Kandpal , Chanchal Rani , Deb Kumar Rath , Bhumika Sahu , Sandeep Chhoker and Rajesh Kumar, Multifunctional Electrochromic Hybrid PANI@WO3 Core-Shell for Energy Generation and Storage, 72, 108640, Jour. Energy Storage, 2023 (Indexed in Scopus, Impact factor: 8.9)
• Ambika Pathak, Sandeep Chhoker, Pinky Singh, Himani Sharma and Rajesh Kumar,
• Electrochemical studies of halide perovskite and its correlation for photocatalytic applications, 139, 107159, Solid State Sciences, 2023 (Indexed in Scopus, Impact factor: 3.4)
• Chandresh Kumari, Pankaj Sharma, and Sandeep Chhoker On the ac conductivity and dielectric study of Er-doped GeSbSe chalcogenides glasses, Journal of Non-Crystalline Solids (Indexed in Scopus, Impact factor: 3.4)
• Deepali Aswal, Priyanka Bamola, Chanchal Rani, Saurabh Rawat, Abhinav Bhatt, Sandeep Chhoker, Mohit Sharma, Charu Dwivedi, Rajesh Kumar, Himani Sharma Enhanced Photocatalytic Activity in 2D‐1D WS2/TiO2 and 2D‐2D MoS2/WS2 Heterosystems, chemistry Select, 8 (34), 2023 (Indexed in Scopus, Impact factor: 2.1)
• Love Bansal, Tanushree Ghosh, Suchita Kandpal, Chanchal Rani, Bhumika Sahu, Deb Kumar Rath, Christoph Wesemann, Sandeep Chhoker, Nadja C Bigall, Rajesh Kumar, Fluorane Sensitive Supercapacitive Microcrystalline MoO3: Dual Application in Energy Storage and HF Detection, 4 (20), 4775, Material Advances, 2023 (Indexed in Scopus, Impact factor: 5.2)
• Devesh K Pathak, Tanushree Ghosh, Suchita Kandpal, Chanchal Rani, Sandeep Chhoker Rajesh Kumar Mescoporous Nickel Titanate - Titanium Oxide Complex Material for Enhanced Energy Storage Application, 127(19), 8925,  Journal of Physical Chemistry C, 2023 (Indexed in Scopus, Impact factor: 3.3)
• Chandresh Kumari, Pankaj Sharma, Manushree Tanwar, Himani Sharma_, Rajesh Kumar and Sandeep Chhoker, Unveiling quaternary GeSbSeEr chalcogenides as photocatalyst: Degradation of cationic and anionic pollutant in visible light, Optical Materials, 134(2022), 113122 [Indexed in Scopus, Impact factor: 3.8]
•  Chandresh Kumari, Pankaj Sharma, S. C. Katyal, Manushree Tanwar, Priyanka Bamola, Himani Sharma_, Rajesh Kumar and Sandeep Chhoker, Photocatalytic activity of GeSbSeEr quarternary chalcogenide for efficient methylene blue degradation in visible light, Results in Surfaces and Interfaces, 100088, 2022 [Indexed in DOAJ, Impact factor: yet to released]
• Chandresh Kumari, Pankaj Sharma, S. C. Katyal, and Sandeep Chhoker, Correlation of optical parameters of pure and doped Ge₁₇Sb₈Se_75-xErx chalcogenides films using transmission spectra, Optical Materials, 132(2022), 122748 [Indexed in Scopus, Impact factor: 3.8]
• Chandresh Kumari, Sandeep Chhoker S. C. Katyal, and Pankaj Sharma, Complex Er-doped selenium-based chalcogenides in the far-infrared region: a structural bonding arrangement study, Physica Scripta, 97(8), 2022, 085707 [Indexed in Scopus, Impact factor: 3.08]
• Chandresh Kumari, Pankaj Sharma and Sandeep Chhoker, Photocatalytic Performance of Quaternary Chalcogenides for Degradation of Cationic Dye: A UV-cut study, IEEE Xplore 2.0,2022, [Indexed in Scopus, Impact factor: NA]
• Shalu Sharma and Sandeep Chhoker, Manoeuvring Morphological, Optical and Electrical Properties of CVD-Grown Ba-Doped SnO 2 Nanostructures via Mn Co-Doping, Journal of Electronic Materials, 1-11, 2020 
• Shalu Sharma and Sandeep Chhoker, Efficient light harvesting using simple porphyrin-oxide perovskite system,Scientific Reports 10 (1), 1-11, 2020
• S Sharma and S Chhoker, CVD grown doped and Co-doped SnO₂ nanowires and its optical and electrical studies Materials Today Proceedings, 2020
• S Chauhan, M Kumar, H Pandey, S Chhoker, SC Katyal, Ca–Li substitution driven structural, dynamics of electron density, magnetic and optical properties of BiFeO₃ nanoparticles, Journal of Alloys and Compounds 811, 151965, 2019
• S Joshi, M Kumar, H Pandey, S Chhoker, Optical properties of Gd³⁺ substituted CoFe₂O₄ Nanoparticles, AIP Conference Proceedings 2136 (1), 040007, 2019
• H Pandey, S Chhoker, BC Joshi, D Tripathi, First principle investigation on Co₂ TiSiHeulseralloy,AIP Conference Proceedings 2136 (1), 040004, 2019
• S Sharma, M Kumar, S Chhoker, Parameters dependent synthesis of zinc stannate nanowires using CVD and its porphyrin dye loaded optical studies, Vacuum 161, 201-208, 2019
• Shalu Sharma, Himanshu Pandey, Manoj Kumar and Sandeep Chhoker “Room temperature ferromagnetism and electrical properties of Mn doped Zn₂ SnO₄ nanorods”. Superlattice and Microstructure 120 (2018), 160-169 [Indexed in Scopus, Impact factor: 2.2]
• Shalu Sharma and Sandeep Chhoker “Optical and electrical studies of barium stannate micro rods synthesised via chemical process” 2009 (1), (2018) 020014 [Indexed in Scopus]
• Shalu Sharma andSandeep Chhoker “Surface activation of self assembled carbon nanoflakes” 2009 (1), (2018)  020024, [Indexed in Scopus]
• Sunil Chauhan, Manoj Kumar, Himanshu pandey and Sandeep Chhoker “Effect of ca and Ni Co-substitution on structural and magnetic properties of BiFeO₃ nanoaprticles” 2009 (1), (2018), 020032, [Indexed in Scopus]
• Manoj Kumar, Sandeep Chhoker, Seema Joshi, Arun Kumar, Mahavir Singh (2017) “Effect of Gd3+ substitution on structural, magnetic, dielectric and optical properties of nanocrystalline CoFe₂O₄” , Journal of Mag.. & Mag. Mat ,426, 252
• Sunil Chauhan, Manoj Kumar, Sandeep Chhoker, S. C. Katyal and M. Singh (2016) “Substitution driven structural and magnetic transformation in Ca-doped BiFeO₃ nanoaprticles” RSC advances, 4, 43080
• Sunil Chauhan, Manoj Kumar, Sandeep Chhoker And S. C. Katyal,(2016)  “A comparative study on structural, vibrational, dielectric and magnetic properties of microcrysatalline BiFeO₃, nanocrystalline BiFeO₃ and core-shell structured BiFeO₃@SiO₂ nanoparticles” J. Alloys and  compounds, 666,  454
• Sunil Chauhan, Manoj Kumar, Sandeep Chhoker, SC Katyal, Mukesh Jewariya, BN Suma, Girish Kunte(2015 ) “Structural modification and enhanced magnetic properties with two phonon modes in Ca-Co codoped BiFeO₃ nanoparticles” Ceramics International  41, 14306
• Prakash Chandra Sati,  Manoj Kumar,  Sandeep Chhoker (2015) “Phase evolution, magnetic, optical, and dielectric properties of Zr substituted Bi_0.9Gd_0.1FeO₃ multiferroics”, Journal of The American Ceramic Society, 98, 1884
• Prakash Chandra Sati, Manoj Kumar and Sandeep Chhoker, (2015) “Raman spectroscopy and enhanced magnetic and dielectric properties of Pr and Ti codoped BiFeO₃ ceramics”, Journal of Materials Science: Materials in Electronics, 26, 530
• P.C. Sati,  Manoj Kumar and Sandeep Chhoker (2015) “Low temperature ferromagnetic ordering and dielectric properties of Bi1-xDyxFeO3 ceramics” Ceramics International, 41, 3227
• PC Sati, M Kumar, S Chhoker and M Jewariya (2015)“Influence of Eu substitution on structural, magnetic, optical and dielectric properties of BiFeO 3 multiferroic ceramics” Ceramics International 41, 2389,
• Manoj Kumar, P.C. Sati Sandeep Chhoker and Vivek Sajal, (2015) “Electron spin resonance studies and improved magnetic and dielectric properties of Gd substituted BiFeO₃ ceramics” Ceramics International 41, 777
• Manoj Kumar, P.C. Sati and Sandeep Chhoker, (2014) “Electron spin resonance studies and improved magnetic properties of Gd-Ti co-substituted BiFeO₃ Ceramics” Ceramics International, 25, 5366
• Seema Joshi, Manoj Kumar, Sandeep Chhoker, Mukesh Jewariya and V. N. Singh, (2014) “Structural, magnetic, dielectric and optical properties of nickel ferrite nanoparticles synthesized by co-precipitation method” Journal of Molecular Structure, 1076, 55
• Manisha Arora, Sunil Chauhan, P. C. Sati, Manoj Kumar, Sandeep Chhoker and R. K. Kotnala, (2014) “Spin-phonon coupling and improved multiferroic properties of Zr substituted BiFeO₃ nanoparticles” Journal of Materials Science: Materials in Electronics, 25 (10), 4286
• Manisha Arora, P. C. Sati, Sunil Chauhan, Manoj Kumar and Sandeep Chhoker, (2014) “Structural, magnetic and optical properties of Ho-Co codoped BiFeO₃ nanoparticles” Materials Letters, 132,  327
• Manisha Arora, Sunil Chauhan, P. C. Sati, Manoj Kumar and Sandeep Chhoker, (2014) “Evidence of spin-two phonon coupling and improved multiferroic behaviour of Bi_1-xDy_xFeO₃ nanoparticles” Ceramics International, 40, 13347
• Prakash Chandra Sati, Sunil Chauhan, Manisha Arora, Manoj Kumar and Sandeep Chhoker, (2014) “Structural, magnetic, vibrational and impedance properties of Pr and Ti codoped BiFeO₃ multiferroic ceramics” Ceramics International,  40,  7805
• Sandeep Chhoker, Manoj Kumar, A.K. Shukla, and V.D. Vankar, (2014) "Linking catalyst phase with CNT morphology and its subsequent field emission characteristics: An optimization study" Fullerene, nanotubes and carbon nanostructures, 22, 375
• Prakash Chandra Sati, Manisha Arora, Sunil Chauhan, Manoj Kumar and Sandeep Chhoker, (2014) “Effect of Dy substitution on structural, magnetic and optical properties of BiFeO₃ ceramics” Journal of Physics and Chemistry and Solids,  75, 105
• S Chauhan, M Kumar, S Chhoker, SC Katyal, (2013) Size dependent structural, vibrational and    magnetic properties of BiFeO3 and core-shell strcutured BiFeO3 @SiO2 nanoparticles SOLID STATE PHYSICS: Proceedings of the 58th DAE Solid State Physics,
• Prakash Chandra Sati, Manisha Arora, Sunil Chauhan, Manoj Kumar and Sandeep Chhoker,v “Rietveld analysis, magnetic, vibrational and impedance properties of (Bi_1-xPr_x)(Fe_1-xZr_x)O₃ceramics” Journal of Materials Science: Materials in Electronics, 24,  5023.
• Sunil Chauhan, Manoj Kumar, Sandeep Chhoker and S.C. Katyal, (2013)  “Structural, vibrational, optical and magnetic properties of sol-gel derived Nd doped ZnO Nanoparticles” Journal of Materials Science: Materials in Electronics,  24,  5102
• Sunil Chauhan, Manisha Arora, Prakash Chandra Sati, Sandeep Chhoker, S.C. Katyal and Manoj Kumar, (2013)  “Structural, vibrational, optical, magnetic and dielectric properties of Bi_1-xBa_xFeO₃ nanoparticles”, Ceramics International, 39, 6399
• Manisha Arora, Prakash Chandra Sati, Sunil Chauhan, Hemant Singh, K.L. Yadav, Sandeep Chhoker and Manoj Kumar, (2013) “Structural, magnetic and optical properties of Bi_1-xDy_xFeO₃ nanoparticles synthesized by sol-gel method”, Materials Letters, 96,  71
• Manisha Arora, Prakash Chandra Sati, Sunil Chauhan, Sandeep Chhoker, A.K. Panwar and Manoj Kumar, (2013)  “Structural, optical and multiferroic properties of BiFeO₃ nanoparticles synthesized by soft chemical route”, Journal of Superconductivity and Novel Magnetism, 26,  443
• Prakash Chandra Sati,  Manisha Arora,  Sunil Chauhan, Manoj Kumar, Sandeep Chhoker (2013) “Rietveld analysis, magnetic, vibrational and impedance properties of (Bi_1-xPr_x)(Fe_1-xZr_x)O₃ ceramics” Journal of Materials Science: Materials in Electronics, 24, 5023
• Prakash Chandra Sati, Manisha Arora, Sunil Chauhan,Sandeep Chhoker and Manoj Kumar, (2012) “Structural, magnetic, and optical properties of Pr and Zr codoped BiFe_O3 multiferroic ceramics”Journal of Applied Physics, 102, 094102
• Chauhan S., Kumar M.,Chhoker S., Katyal S. C., Singh H., Jewariya M., and Yadav K. L., (2012) “Multiferroic, magnetoelectric and optical properties of Mn doped BiFe_O3 nanoparticles”Solid State Communications, 152, 525
• S. Chhoker, S. Vinayak, A.K. Shukla and V.D. Vankar, (2011 )Field emission studies of carbon nanostructures synthesized over Ni-Cr catalyst layer,Journal of Experimental Nanosciences,  6 (4), 374
• S. Chhoker,S.K. Arora, A. K. Shukla, P.K.Srivastava and V. D. Vankar, (2008) “Electron field emission from carbon nanoflakes grown over vertically aligned carbon nanotubes grown by MPECVD”,, Jour. of Nanoscience and Nanotechnolgy, . 8(8), 4309
• S. Arora, S. Chhoker,N. K. Sharma, V. N.  Singh and V.D. Vankar, (2008)  Synthesis of microcrystalline diamond thin film by hot filament CVD process, Journal of Applied Physics,  104, 103524
• S. Chhoker, S.K. Srivastava and V. D. Vankar, (2008)  Field emission properties of carbon nanostructures : A Review, IEEE Explore 2.0, 820

International / National Conference

• Chandresh Kumari, Pankaj Sharma and Sandeep Chhoker, Photocatalytic Activity of Quaternary Chalcogenide for Methylene Blue Degradation, Proceedings of 66^th DAE Solid State Physics Symposium
• Ambika Pathak and Sandeep Chhoker, Optical Studies Of Carbon Nano Dots Based Composites For Waste Water Remedy, International Conference of advanced Materials and Nanotechnology-2022, JIIT Noida
• Chandresh Kumari, Pankaj Sharma and Sandeep Chhoker, Electrical and photoluminescence studies of GeSbSeEr Chalcogenide Films, International Conference of advanced Materials and Nanotechnology-2022, JIIT Noida
• Chandresh Kumari, Pankaj Sharma and Sandeep Chhoker, Photocatalytic Performance of Quaternary Chalcogenides for Degradation of Cationic Dye: A UV-cut study, International Conference on Signals and Communications, 2022, JIIT Noida
• Chauhan S., Kumar M., Chhoker S. and Katyal S. C (2012)., “Room-temperature ferromagnetism, structural and optical properties of Nd Cheminar–2012 (CCC-2012) (An International Conference), NIT Jalandhar, September 10-12,
• Sati P. C., Arora M., Chauhan S., Chhoker S. and Kumar M., (2012) “Phase transformation, raman, magnetic and optical properties of Pr, Ti codoped BiFeO3 multiferroic” Chemical Constellation Cheminar–2012 (CCC-2012) (An International Conference), NIT Jalandhar, September 10-12
• Arora M., Sati P. C., Chauhan S., Chhoker S. and Kumar M., (2012) “Compositional driven phase transition and optical and multiferroic properties of Gd substituted BiFeO3 nanoparticles” Chemical Constellation Cheminar–2012 (CCC-2012) (An International Conference), NIT Jalandhar, September 10-12, 2012.
• Sati P. C., Chauhan S., Arora M., Chhoker S., and Kumar M., (2012) “Structural, magnetic and dielectric properties of (Bi1-xPrx)(Fe1-x-Zrx)O3 (x = 0.03, 0.06 and 0.10) multiferroic ceramics” Indo-Japan Conference on Frontier nanomaterials for Energy (FNE-2012), Sharda University, Greater Noida, U.P., VT-17, pp. 96, Jan. 9-11
• Kumar M., Chhoker S., and Sahni M., (2011) “Structural, Magnetic, Electric and Multiferroic Properties of Polycrystalline Bi1-xSrx(Fe0.8Ti0.2)O3 Ceramics” International Conference on Materials for Advanced Technologies (ICMAT-2011), National University of Singapore, Singapore, L2.4-7, pp. 43, June 26-July 1
• Kumar M., Chauhan S., Sahni M., Chhoker S., and Dwivedi, R. K., (2011) “Structural, Magnetic, Optical and Multiferroic Properties of Mn Doped BiFeO3 Nanocrystals” International Conference on Materials for Advanced Technologies (ICMAT-2011), National University of Singapore, Singapore, A2.2-4, pp. 29, June 26-July 1.
• Chauhan, S., Kumar, M., and Chhoker, S., (Jan-2011)  Multiferroic properties of sol-gel derived Ba doped BiFeO3 nanoparticles, National Conference and Workshop on Recent Advances in Modern Communication Systems and Nanotechnology (NCMCN – 2011), University of Rajasthan, Jaipur,
• Chhoker, S., Kumar, M., Shukla, A. K., and Vankar, V. D., (2010) Density variation in CNT films synthesized by MPECVD  and its field emission properties, National Conference On Recent Trends in Exotic Materials (NCRTEM-2010), Sharda University, Greater Noida, U.P.
• Chhoker S. and Vankar V.D., (2008) Effect of rubidium fluoride on the field emission properties of carbon nanotubes, Carbon, Nagano Japan,
• S. Chhoker, H. Sharma, A.K. Shukla, V. D. Vankar, (Nov-2008) Field emission from sparsely grown carbon nanotubes APAM, National Physical Laboratory, New Delhi,
• S. Chhoker, S. K. Arora, P.Srivastava, V.D. Vankar,  (Jan-2007) Electron field emission from carbon nanoflakes grown over vertically aligned carbon nanotubes, Advanced nano-materials, IIT Bombay,
• S. Chhoker, S.K. Srivastava and V. D. Vankar, (Dec-2007) Field emission properties of carbon nanostructures, IWPSD, IIT Bombay.
• S. Chhoker, S. K. Arora, S. Vinayak, P.Srivastava, A.K. Shukla, V.D. Vankar, (Nov-2006.) Enhanced field emission from carbon nanostructures grown on Ni-Cr film, International conf. on nanomaterials CMET-Pune,
• S.K. Arora, S. Chhoker, N.K.Sharma, V.D.Vankar, (Dec-2005) Synthesis of macro crystalline diamond on macro porous silicon using hot filament CVD, IWPSD, National Physical Laboratory, New Delhi,