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Tummala's research activity is mainly focused on the Ambient Pressure Chemical Vapor Deposition (AP-CVD) synthesis of 2-dimensional nanosheets of Transition Metal Dichalcogenides (TMDs), in particular, MoS2, MoTe2, PtTe2(WS2, WTe2) on a large scale and their characterization mainly by Scanning Electron Microscopy (SEM), Raman spectroscopy, Photoluminescence(PL). Further research activities are addressed to the integration of such TMDs on different substrates (SiO2, Sapphire, Patterned...) and on the development of heterostructures for potential applications and devices in nanoelectronics, optoelectronics, energy storage, etc. This research activity is done under the 2D-Materials Research Group (P.I. Dr. Alessandro Molle) at the CNR-IMM Unit of Agrate Brianza.
Skills:
(i) Developing processes for the novel 2-dimensional transition metal dichalcogenides including MoS2, WS2, MoTe2, PtTe2, NiTe2, and mono elemental materials like tellurene, bismuthene using Chemical vapor deposition (CVD).
(ii) Characterization techniques: Raman Spectroscopy, SEM, PL,
(iii) Optical and electrical characterization: Internal Photoemission Spectroscopy of electrons(IPE), Photoconductivity measurements
Grants received:
- Recipient of Venice International University_Summer school Grant (Italy) 2021
- Recipient of CHESS2022 Conference Grant (Italy) 2022
- Recipient of Julian Schwinger Grant (Germany) 2022
- Recipient of Venice International University Grant (Italy) 2023
- Recipient of SPP 2244 TU Dresden Summer School Grant (Germany) 2023
- Recipient and Winner of Huawei R&D Semiconductors Competition (Belgium) 2023
- Recipient of INL - International Iberian Nanotechnology Laboratory R&D Grant (Portugal) 2024
Biography: Tummala Pinakapani obtained a Masters in Material Science and Nanotechnology from Politecnico di Milano, Italy in 2019 where he carried out his master thesis on "Large Area Growth of monolayer MoS2 nanosheets using Chemical Vapor Deposition" under the supervision of Dr. Alessio Lamperti(CNR-IMM) and Prof. Luca Giampaolo Nobili, in CNR-IMM Unit of Agrate Brianza. After he joined the Italian National Research Council laboratories in September 2019 as a Post-Graduate Fellow involved in the development of novel two-dimensional materials under European project grant. In 2020, Tummala started his Doctoral Research fellow position in 2D-Materials Group at CNR-IMM unit with collaboration in a joint International Ph.D. program in Science at Università Cattolica del Sacro Cuore (Italy) and KU Leuven(Belgium). He then moved to KU Leuven in July 2022 - Febraury 2023 for his doctoral studies in the Department of Physics and Astronomy to work in the field of Internal Photoemission spectroscopy (IPE) under Prof. Valeri Afanasiev, head of Semiconductor Physics Department, KU Leuven. His research activity focuses on the synthesis and electrical characterization of different transition metal dichalcogenides (TMDs).
https://scholar.google.com/citations?user=X_IAp_sAAAAJ&hl=it
From Nov. 2020 - International Joint Ph.D. Program in Science,
(CNR-IMM_KU Leuven_Università Cattolica del Sacro Cuore)
Supervisors: Dr. Alessio Lamperti(CNR-IMM), Prof. Valeri Afanasiev(KUL), Prof. Gabriele Ferrini(UCSC)
Department of physics and astronomy
KU.Leuven, Belgium
Department of Mathematics and Physics,
Università Cattolica del Sacro Cuore, Brescia I-25121, Italy.
2017 - 2019 - M.Sc. in Materials Engineering and Nanotechnology, Politecnico di Milano, Milano, ITALY
Thesis: Large area growth of Molybdenum disulfide(MoS2) by Chemical Vapor Deposition(CVD).
Supervisors: Dr. Alessio Lamperti (CNR-IMM), Prof. Luca G Nobili (POLIMI)
2012-2016 - B.Tech in Mechanical Engineering, Lovely Professional University, Punjab, INDIA
Scientific Production
Effects of inorganic seed promoters on MoS2 few-layers grown via chemical vapor deposition
Journal of Crystal Growth [North-Holland], Volume: 627 Pages: 127530
Tailoring the dimensionality of tellurium nanostructures via vapor transport growth
Materials Science in Semiconductor Processing [Pergamon], Volume: 168 Pages: 107838
Impact of CVD chemistry on band alignment at the MoS 2/SiO 2 interface
Solid-State Electronics [Elsevier], Volume: 209
Impact of CVD chemistry on band alignment at the MoS2/SiO2 interface
Solid-State Electronics [Elsevier], Volume: 209 Pages: 108782
Impact of Cvd Chemistry on Band Alignment at the Mos2/Sio2 Interface
Available at SSRN 4429237 [https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4429237],
Large area growth of single phase TMT nanosheets through simulation guided AP-CVD tellurization
MRS [], Volume: 9
Nanomaterials [MDPI], Volume: 12 Issue: 22 Pages: 4050
Advanced Materials Interfaces [], Pages: 2200971
Ambient Pressure Chemical Vapor Deposition of Flat and Vertically Aligned MoS2 Nanosheets
Nanomaterials [MDPI], Volume: 12 Issue: 6 Pages: 973
Tailoring the Phase in Nanoscale MoTe2 Grown by Barrier-Assisted Chemical Vapor Deposition
Crystal Growth & Design [American Chemical Society], Volume: 21 Issue: 5 Pages: 2970-2976
Broadband and Tunable Light Harvesting in Nanorippled MoS2 Ultrathin Films
ACS applied materials & interfaces [American Chemical Society], Volume: 13 Issue: 11 Pages: 13508-13516
Changing the Electronic Polarizability of Monolayer MoS2 by Perylene‐Based Seeding Promoters
Advanced Materials Interfaces [], Volume: 7 Issue: 20 Pages: 2000791
Materials [Multidisciplinary Digital Publishing Institute], Volume: 13 Issue: 12 Pages: 2786
Ultra-broadband photon harvesting in large-area few-layer MoS 2 nanostripe gratings
Nanoscale [Royal Society of Chemistry], Volume: 12 Issue: 48 Pages: 24385-24393
RECENT PROGRESS IN GRAPHENE AND 2D MATERIALS RESEARCH, Date: 2023/11/20-2023/11/23, Location: BENGALURU (INDIA) [],
MEMRISYS 2023 [],
2023 IEEE Nanotechnology Materials and Devices Conference (NMDC) [IEEE], Pages: 411-415
FISMAT 2023, Date: 2023/09/04-2023/09/08, Location: Milano Italy [],
1/f noise from condensed matter physics to quantum technologies [], Volume: 2022 Issue: 1
Ettore Majorana Foundation and Centre for Scientific Culture_Phenomenon of 1/f noise in condensed matter physics, Date: 2022/04/24-2022/04/29, Location: Erice (Italy) [],
Materials Research Society (MRS) [], Volume: 9 Issue: 20 Pages: EQ20
Synthesis and Phase Tuning of MoTe2 Nanosheets by Chemical Vapor Deposition
Materials Research Society (MRS) [], Volume: 4 Issue: EQ20
Anisotropic MoS2 Nanoscale Patterns for Light Interaction by Design
Materials Research Soceity (MRS) [], Volume: 9 Issue: 11 Pages: F.EL 04
Different Strategies to obtain MoS2 nanosheets by implementing CVD on different substrates
International Conference on Newtimes and New trends in Material Science and thin Films, Date: 2021/06/14-2021/06/18, Location: Online [],