-A A +A
PhD Student

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. 



(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). 




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 - 2019M.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 Productions

Alessandro Cataldo, Pinaka Pani Tummala, Christian Martella, Carlo Spartaco Casari, Alessandro Molle, Alessio Lamperti

Effects of inorganic seed promoters on MoS2 few-layers grown via chemical vapor deposition

Journal of Crystal Growth [North-Holland], Volume: 627 Pages: 127530

Sara Ghomi, Pinaka Pani Tummala, Raimondo Cecchini, Carlo S Casari, Alessio Lamperti, Carlo Grazianetti, Christian Martella, Alessandro Molle

Tailoring the dimensionality of tellurium nanostructures via vapor transport growth

Materials Science in Semiconductor Processing [Pergamon], Volume: 168 Pages: 107838

V.V. Afanas'ev P.P. Tummala, G. Delie, A. Cataldo, S. Ghomi, C. Martella, G. Ferrini, A. Molle, A. Lamperti

Impact of CVD chemistry on band alignment at the MoS2/SiO2 interface

Solid-State Electronics [Elsevier], Volume: 209 Pages: 108782

PP Tummala, G Delie, A Cataldo, S Ghomi, C Martella, G Ferrini, A Molle, A Lamperti, VV Afanas' ev

Impact of CVD chemistry on band alignment at the MoS 2/SiO 2 interface

Solid-State Electronics [Elsevier], Volume: 209

Pinakapani Tummala Gilles Delie, Alessandro Cataldo, Sara Ghomi, Christian Martella, Gabriele Ferrini, Alessandro Molle, Alessio Lamperti, Valeri Afanas’ev

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],

Alessio Lamperti, Pinaka Pani Tummala, Alessandro Molle, Christian Martella

Large area growth of single phase TMT nanosheets through simulation guided AP-CVD tellurization

MRS [], Volume: 9

Christian Martella, Davide Campi, Pinaka Pani Tummala, Erika Kozma, Paolo Targa, Davide Codegoni, Marco Bernasconi, Alessio Lamperti, Alessandro Molle

Extreme Bendability of Atomically Thin MoS2 Grown by Chemical Vapor Deposition Assisted by Perylene-Based Promoter

Nanomaterials [MDPI], Volume: 12 Issue: 22 Pages: 4050

Pinaka Pani Tummala, Sara Ghomi, Carlo Spartaco Casari, Christian Martella, Alessio Lamperti, Alessandro Molle

Large Area Growth and Phase Selectivity of MoTe2 Nanosheets through Simulation‐Guided CVD Tellurization

Advanced Materials Interfaces [], Pages: 2200971

Pinaka Pani Tummala, Christian Martella, Alessandro Molle, Alessio Lamperti

Ambient Pressure Chemical Vapor Deposition of Flat and Vertically Aligned MoS2 Nanosheets

Nanomaterials [MDPI], Volume: 12 Issue: 6 Pages: 973

Pinaka Pani Tummala, Christian Martella, Alessio Lamperti, Alessandro Molle

Synthesis and phase tuning of MoTe2 nanosheets by chemical vapor deposition

MRS [],

Christian Martella, Alessio Quadrelli, Pinaka Pani Tummala, Cristina Lenardi, Roberto Mantovan, Alessio Lamperti, Alessandro Molle

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

Mukul Bhatnagar, Matteo Gardella, Maria Caterina Giordano, Debasree Chowdhury, Carlo Mennucci, Andrea Mazzanti, Giuseppe Della Valle, Christian Martella, Pinakapani Tummala, Alessio Lamperti, Alessandro Molle, Francesco Buatier de Mongeot

Broadband and Tunable Light Harvesting in Nanorippled MoS2 Ultrathin Films

ACS applied materials & interfaces [American Chemical Society], Volume: 13 Issue: 11 Pages: 13508-13516

Christian Martella, Erika Kozma, Pinaka Pani Tummala, Saverio Ricci, Kishan Ashokbhai Patel, Anita Andicsovà‐Eckstein, Fabio Bertini, Guido Scavia, Roman Sordan, Luca G Nobili, Monica Bollani, Umberto Giovanella, Alessio Lamperti, Alessandro Molle

Changing the Electronic Polarizability of Monolayer MoS2 by Perylene‐Based Seeding Promoters

Advanced Materials Interfaces [], Volume: 7 Issue: 20 Pages: 2000791

Pinakapani Tummala, Alessio Lamperti, Mario Alia, Erika Kozma, Luca Giampaolo Nobili, Alessandro Molle

Application-Oriented Growth of a Molybdenum Disulfide (MoS2) Single Layer by Means of Parametrically Optimized Chemical Vapor Deposition

Materials [Multidisciplinary Digital Publishing Institute], Volume: 13 Issue: 12 Pages: 2786

Mukul Bhatnagar, Maria Caterina Giordano, Carlo Mennucci, Debasree Chowdhury, Andrea Mazzanti, Giuseppe Della Valle, Christian Martella, Pinakapani Tummala, Alessio Lamperti, Alessandro Molle, Francesco Buatier de Mongeot

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

Pinaka Pani Tummala

Vapor transport deposition of Transition Metal Tellurides (TMTs) and Ultra-Thin Tellurium nanosheets through Simulation-Guided Tellurization


M. Farronato, P. P. Tummala, C. Martella, A. Lamperti, A. Molle, C. M. Compagnoni, and D. Ielmini

Memtransistors based on few-layer MoS2 with ionic and electronic switching for neuromorphic computing

MEMRISYS 2023 [],

Pinaka Pani Tummala, Alessandro Cataldo, Christian Martella, Gabriele Ferrini, Carlo Spartaco Casari, Alessandro Molle, Valeri Afanas’Ev, Alessio Lamperti

Role of Precursors Chemistry on the Growth and Band Alignment of Few-Layers MoS2 From Liquid Chemical Vapor Deposition

2023 IEEE Nanotechnology Materials and Devices Conference (NMDC) [IEEE], Pages: 411-415

Pinaka Pani Tummala, Alessandro Cataldo, Christian Martella, Sara Ghomi, Alessandro Molle, Alessio Lamperti

Impact of precursor chemistry on energy band alignment of few layer MoS2 grown by AP-CVD at interface with SiO2

FISMAT 2023, Date: 2023/09/04-2023/09/08, Location: Milano Italy [],

Tummala PinakaPani C Martella, A Lamperti, A Molle

Two dimensional Molybdenum disulfide (MoS2) : CVD Synthesis, characterization and opto-electronic properties

1/f noise from condensed matter physics to quantum technologies [], Volume: 2022 Issue: 1

Pinaka Pani Tummala, Alessio Lamperti, Alessandro Molle

Two-dimensional Molybdenum disulfide (MoS2): CVD Synthesis, characterization and opto-electronic properties

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) [],

Christian Martella1 Erika Kozma2,Pinaka Pani Tummala1,Paolo Targa3,Davide Codegoni3,Alessio Lamperti1, Alessandro Molle1

Harnessing the Bendability of Atomically Thin MoS2 Layers Grown by Perylene Assisted Chemical Vapour Deposition

Materials Research Society (MRS) [], Volume: 9 Issue: 20 Pages: EQ20

Pinaka Pani Tummala Christian Martella,Sara Ghomi,Samarsadat Mirenayat,Alessio Quadrelli,Mario Alia,Matteo Cocuzza,Cristina Lenardi,Luca Nobili,Roberto Mantovan, Alessio Lamperti, Alessandro Molle

Synthesis and Phase Tuning of MoTe2 Nanosheets by Chemical Vapor Deposition

Materials Research Society (MRS) [], Volume: 4 Issue: EQ20

Alessandro Molle1 and Christian Martella1 Andrea Camellini2 , Mukul Bhatnagar3 , Marina Caterina Giordano3 , Carlo Mennucci3 , Pinaka Pani Tummala1 , Debasree Chowdhury3 , Andrea Mazzanti2 , Margherita Zavelani Rossi2,1, Giuseppe Della Valle2,1, Francesco Buatier de Mongeot3, Alessio Lamperti1

Anisotropic MoS2 Nanoscale Patterns for Light Interaction by Design

Materials Research Soceity (MRS) [], Volume: 9 Issue: 11 Pages: F.EL 04

Pinaka Pani Tummala, Christian Martella, Alessandro Molle, Alessio Lamperti

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 [],