Assistant Professor

Dr Siddhartha Ghosh

Department of Physics

Interests

  1. Novel Physics at exotic interfaces grown by pulsed laser deposition (PLD)
  2. Wettability studies of metal-oxide thin-film surfaces
  3. Nano-magnetism in transition metal oxides (TMO) and metal-organic frameworks (MOF)

Education

2003

University of Calcutta
India
Bachelors

2005

IIT Kanpur
India
Masters

2012

University of Florida
USA
Ph.D.

Experience

  • March 2013 to May 2019, Research Fellow | NUSNNI under National University of Singapore (NUS), Singapore.
  • Jan 2010 to Jan 2013, Graduate Research Assistant | Department of Florida at University of Florida, USA.
  • Aug 2006 to Dec 2009, Graduate Teaching Assistant | Department of Florida at University of Florida, USA.

Research Interest

Growth of thin-film and hetero-structure:
  • Growth of ferro-magnetic/ferro-electric/multiferroic metal oxide thin-films and hetero-structures.
  • Growth & study of opto-electronic properties of Graphene/Graphene Oxide (GO) & reduced Graphene Oxide (rGO) thin-films using CVD & PLD.
  • Growth of 2D-TMDC & 2D-TMDC/Metal Oxide hetero-structures using CVD & PLD.
Wettability studies of metal-oxide thin-films:
  • Systematic study of water contact angle (WCA) of of PLD grown epitaxial R2O3 (R = Lu, Sm, Tm, Tb etc.) thin-films and the temporal evolution of the WCA.
  • Study of correlation of nano-scale WCA to micro WCA using novel f-d curve
  • Study Of biological interaction of PLD grown epitaxial R2O3 thin-films with human osteoblast and fibroblast cells.
  • Study on the effect of Oxygen vacancy on the WCA of transition metal based [i.e. – SrTiO3, LaAlO3) and rare-earth based [i.e. - R2O3 (R = Lu, Sm, Tm, Tb etc.)] oxides.
Study of magnetism in novel nano-structures:
  • Novel soft-ferromagnetism in transition metal based metal-organic systems like Me(X)n. [(Me = Ru, Co, Fe, Pt, Pd etc.); (X=PAP; PCP etc.); (n=2,3,4 etc.)].
  • Study of Quantum Correction in Disordered antiferromagnet (Cr & Mn).
  • Ferromagnetic behavior in magnetic Quantum Dot (MQD) like FeCeTeS.
  • Role of interface in ferromagnetic, magneto-trasport and ferroelectric properties of perovskite and double perovskite (DP) super lattice structure.
Optical studies of Rare-earth based perovskites:
  • Growth & Study of Ce doped NdGaO3 thin-films to realize the concept of super-hydrogenic dopant.
  • Study of sharp Photoluminescence lines of various common oxide substrates including (but not limited to) LaAlO3, SrTiO3, DyScO3, NdGaO3, NdAlO3

Awards & Fellowships

  • 2019 – Long Service Award (LSA) – National University of Singapore (NUS).
  • 2017 - Invited speaker - Collaborative Conference on Materials Research (CCMR).
  • 2016 - Nomination for best poster award - Materials Research Society (MRS).
  • 2006 – Graduate Research Fellowship – College of Liberal Arts & Sciences (CLAS), University of Florida, USA.
  • 2003 - Certificate of Merit & Gold Medal - Indian Association of Physics Teachers (I.A.P.T.).

Memberships

  • Member of American Physical Society (APS): 2008-Present
  • Member of Material Res. Society of Singapore (MRS-S) : 2013-Present

Publications

  • Goutam Kumar Dalapati, Himani Sharma, Asim Guchhait, Nilanjan Chakrabarty, Priyanka Bamola, Qian Liu, Gopalan Saianand, Ambati Mounika Sai Krishna, Sabyasachi Mukhopadhyay, Avishek Dey, Terence Kin Shun Wong, Siarhei Zhuk, Siddhartha Ghosh et. al., Tin oxide for optoelectronic, photovoltaic and energy storage devices: a review, J. Mater. Chem. A, 9, 16621 (2021). IF: 14.51
  • Hariom Jani, Linghu Jiajun, , Sonu Hooda, Rajesh V. Chopdekar, Changjian Li, Ganesh Ji Omar, Saurav Prakash, Du Yonghua, , Ping Yang, Agnieszka Banas, Krzysztof Banas, Siddhartha Ghosh, Sunil Ojha, Dinakar Kanjilal, A Ariando, Stephen J. Pennycook, Elke Arenholz, P. G. Radaelli, J. M. D. Coey, Yuan Ping Feng, T. Venkatesan. “Reversible hydrogen-ion control of room temperature antiferromagnetic state in α-Fe2O3” Nature Communication, 12, 1668 (2021). IF: 17.69
  • Shamili Bandaru, Chandreswar Mahata, Sabyasachi Chakrabortty, Siddhartha Ghosh, Hassan Algadi, Seeram Ramakrishna, Goutam Kumar Dalapati "Nanostructured CuO on Silicon using Chemical Bath Deposition process and Sputter Seed Layer" Journal of Electronic Material, 50, 1779–1785 (2021). IF: 1.938
  • Chandreswar Mahata; Siddhartha Ghosh; Sandipan Chakraborty; Laxmi Narayana Patro; Anjana Tripathi; Ranjit Thapa; Seeram Ramakrishna; Sungjun Kim; Goutam Kumar Dalapati. "Charge Trapping Characteristics of Sputter-AlOx/ALD-Al2O3/Epitaxial-GaAs Based Nonvolatile Memory" Journal of Materials Science: Materials in Electronics, 32, 4157–4165 (2021) IF: 2.478
  • M.M. Juvaid, S. Sarkar, Pranjal Kumar Gogoi, Siddhartha Ghosh, Meenakshi Annamalai et.al “Direct Growth of Wafer-scale, Transparent, p-type Reduced Graphene Oxide like Thin Films by Pulsed Laser Deposition” ACS Nano, 14, 3290−3298 (2020). IF: 18.03
  • Goutam Kumar Dalapati,* Saeid Masudy-Panah, Roozbeh Siavash Moakhar, Sabyasachi Chakrabortty, Siddhartha Ghosh, Ajay Kushwaha, Reza Katal, Chin Sheng Chua, Gong Xiao, Sudhiranjan Tripathy, and Seeram Ramakrishnav “Nanoengineered Advanced Materials for Enabling Hydrogen Economy: Functionalized Graphene–Incorporated Cupric Oxide Catalyst for Efficient Solar Hydrogen Production” Global Challenges, 1900087 (2020). IF: 5.135
  • S. Prakash, S. Ghosh*, A. Patra, M. Annamalai, M. R. Motapothula, S. Sarkar, Sherman J.R. Tan, Jia Zhunan, Kiang Ping Loh, T. Venkatesan*, “Intrinsic Hydrophilic Nature of Epitaxial Thin-film of Rare-earth Oxide Grown by Pulsed Laser Deposition” Nanoscale, 10, 3356 – 3361 (2018). IF: 8.307
  • S. Goswami, A. J. Matula, S. P. Rath, S. Hedstrom, S. Saha, M. Annamalai, D. Sengupta, A. Patra, S. Ghosh, H. Jani, S. Sarkar, M. R. Motapothula, C. A. Nijhuis, J. Martin, S. Goswami, V. S. Batista, T. Venkatesan, “Robust Resistive Memory Devices Using Solution-Processable Metal-Coordinated Azo-aromatics” Nature Materials 16, 1216–1224 (2017). IF: 47.66
  • J. Cianfrone, S.Ghosh*, S. Kim, K.W.Kim, A.F.Hebard, D. Norton, “Enhancement of ferromagnetism in BaFeO3-KTa0.47Nb0.53O3 multilayers compared to pseudo-cubic BaFeO3 thin film grown by pulsed laser deposition” Phys. Status Solidi A, 1600707 (2017). IF: 2.17
  • T. Sarkar#, S. Ghosh#, M. Annamalai, A. Patra, K. Stoerzinger, Y. L. Lee, S. Prakash, M. R. Motapothula, Y. S. Horn*, L. Giordano*, T. Venkatesan*, “The effect of oxygen vacancies on water wettability of transition metal based SrTiO3 and rare-earth based Lu2O3” RSC Advances, 6, 109234 (2016). IF: 4.036
  • S. Saha, B. C. Cao, S Sarkar, M. R. Motapothula, C. X. Cong, T. Sarkar, A. Srivastava, S. Sarkar, A. Patra, S. Ghosh, Ariando, J. M. D. Coey, T. Yu, T. Venkatesan, “Magnetic Modes in Rare Earth Perovskites: A Magnetic-Field-Dependent Inelastic Light Scattering study” Scientific Reports, 6, 36859 (2016). IF: 4.996
  • S. Ghosh#*, S. Saha#, Z. Q. Liu*, M. Motapothula, A. Patra, N. Yakovlev, Y. Cai, et. al. “Origin and Quenching of Novel ultraviolet and blue emission in NdGaO3: Concept of Super-Hydrogenic Dopants” Scientific Reports, 6, 36352 (2016). IF: 4.996
  • S. Sarkar, S. Saha*, M. R. Motapothula, A. Patra, B. C. Cao, S. Prakash, C. X. Cong, S. Mathew, S. Ghosh*, T. Yu, T. Venkatesan*, “Magneto-Optical Study of Defect Induced Sharp Photoluminescence in LaAlO3 and SrTiO3” Scientific Reports, 6, 33145 (2016). IF: 4.996
  • A. Rana#, A. Patra#, M. Annamalai#, A. Srivastava, S. Ghosh, K. Stoerzinger et. al. “Correlation of nanoscale behaviour of forces and macroscale surface wettability” Nanoscale, 8, 15597-15603 (2016). IF: 8.307
  • K.W.Kim, S.Ghosh*, S.V.Buvaev, A.F.Hebard, D. Norton, “Superlattice periodicity and magnetic properties of Ba2FeMoO6/Ba0.5Sr0.5TiO3 system” Journal of Applied Physics, 119, 215303 (2016). IF: 2.877
  • K.W.Kim, S.Ghosh*, S.V.Buvaev, A.F.Hebard, D. Norton, “Strain induced enhancement of magnetization In Ba2FeMoO6 based heterostructure with (BaxSr1-x)TiO3” Journal of Applied Physics, 119, 185304 (2016). IF: 2.877
  • K. W. Kim, S. Ghosh*, S. Buvaev, S. Mhin, J. L. Jones, A. F. Hebard, D. P. Norton, “The effects of oxygen pressure on disordering and magneto-transport properties of Ba2FeMoO6 thin films grown via pulsed laser deposition” Journal of Applied Physics, 118, 033903 (2015). IF: 2.877
  • S. Buvaev, S. Ghosh, K. Muttalib, P. Wölfle, A. Hebard, “Transport measurements of the spin-wave parameters of thin Mn films” Physical Review B, 90, 214429 (2014). IF: 3.908
  • S. Ghosh, S. Tongay, A. F. Hebard, H. Sahin, F. M. Peeters, “Ferromagnetism in Stacked Bilayers of Pd/C60” Journal of Magnetism and Magnetic Materials, 349, 128-134 (2014). IF: 3.097
  • A. K. Saha, P. Sharma, H. B. Sohn, S. Ghosh, R. K. Das, A. F. Hebard, H. Zeng, C. Baligand, G. A. Walter, B. M. Moudgil, “Fe doped CdTeS magnetic quantum dots for bioimaging” Journal of Materials Chemistry B, 1, 6312 (2013). IF: 6.331
  • K.W.Kim, S.Ghosh, S.V.Buvaev, S.Mhin, J. Jones, A.F.Hebard, D. Norton, “Magnetic and magnetotransport properties of Ba2FeMoO6 pulsed laser deposited thin films” Journal of Applied Physics, 112, 083923 (2012). IF: 2.877
  • S. Biswas, K. D. Belfield, R. K. Das, S. Ghosh, A. F. Hebard, “Superparamagnetic Nanocomposites Templated with Pyrazole-Containing Diblock Copolymers” Polymers, 4, 1211-1225 (2012). IF: 4.329
  • S. Biswas, K. D. Belfield, R. Das, S. Ghosh, A. F. Hebard, “Block Copolymer-Mediated Formation of Superparamagnetic Nanocomposites” Chemistry of Materials, 21, 5644-5653 (2009). IF: 10.51

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