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IMG-20251215-WA0009_edited Micromanipulation with Glass Tips The Team IMG-20251215-WA0009_edited 1/9 Welcome to Our Lab

Collaborations - Prof. F. Ishikawa, Hokkaido University (Japan) - Prof. S. Zhao and Prof. Z. Mi, Mc Gill University (Canada) - Prof. H. Tan and Prof. C. Jagadish, Australian National University (Australia) - Prof. A. Fontcuberta i Morral, EPFL (Switzerland) - Prof. L. Sorba, Dr. V. Zannier, CNR nano and Scuola Normale Superiore (Italy) - Dr. S. Rubini, CNR Tasc (Italy) - Prof. A. Sanchez, Warwick University (UK) - Dr. R. Rurali, ICMAB (Spain) - Prof. I. Zardo, University of Basel (Switzerland) - Prof. A. Polimeni and Prof. M. Felici, Sapienza University (Italy) Fundings GROUNDS : Growth and optical studies of tunable quantum dots and superlattices in semiconductor nanowires HELIOS : Bright telecom-band single photon sources in bottom-up nanowire waveguides Development of single photon quantum states based on quantum dots operating at different wavelengths NANOWHYR : Dots-in-NANOWires by near-field illumination: novel single-photon sources for HYbRid quantum photonic circuits

Publication List Articles Published or under revision in Peer-Reviewed Journals < Back 1. Nadine Denis, Akant Sagar Sharma, Elena Blundo, Francesca Santangeli, Paolo De Vincenzi, Riccardo Pallucchi, Mitsuki Yukimune, Alexander Vogel, Ilaria Zardo, Antonio Polimeni, Fumitaro Ishikawa, Marta De Luca, "Bandgap Engineering On Demand in GaAsN Nanowires by Post-Growth Hydrogen Implantation", Small (2025) https://doi.org/10.1002/smll.202506091 2. Nadine Denis; Akant Sagar Sharma; Didem Dede; Timur Nurmamytov; Salvatore Cianci; Francesca Santangeli; Marco Felici; Victor Boureau; Antonio Polimeni; Silvia Rubini; Anna Fontcuberta i Morral; Marta De Luca. "Single Photon Emitters in Thin GaAsN Nanowire Tubes Grown on Si", ACS Nano, 19, 46, 39757–39767(2025). https://doi.org/10.1021/acsnano.5c12139 3. Sorodoc, Robert$; De Vincenzi, Paolo$; Sharma, Akant; Bucci, Giada; Roggi, Mario; Mugnaioli, Enrico; Sorba, Lucia; De Luca, Marta; Zannier, Valentina, “Tunable GaAsxP1-x quantum dot emission in wurtzite GaP Nanowires ” , ACS Appl. Mater. Interfaces 16, 47, 65222–65232 (2024). https://doi.org/10.1021/acsami.4c15343 $ equal contribution 4. Akant Sagar Sharma*, S. J. Sreerag, Rajeev N Kini, “Temperature-dependent ultrafast hot carrier dynamics in the dilute bismide alloy ”, GaSb1-xBix (x ≾ 0.4%), J. Appl. Phys. 135, 035701 (2024) *corresponding author 5. S. J. Sreerag $, Akant Sagar Sharma*$, T. B. O Rockett, J. P. R. David, R.D. Richards, R. N. Kini, “Negative thermal quenching in optically pumped GaAsBi-GaAs heterojunction p-i-n diode ”, Applied Physics A 129, 603 (2023) *corresponding author $ equal contribution 6. Akant Sagar Sharma*, N Malathi, Subhasis Das, R.N. Kini, “Temperature-dependent electron Hall mobility in LPE-grown InPBi/InP epilayers ”, Journal of Materials Science: Materials in Electronics 34, 450 (2023) 7. "Control of the composition and the structural properties of GaAsSb layers, grown by liquid phase epitaxy, by Bi addition to the growth melt. ” Akant Sagar Sharma, Subhasis Das, and S. Dhar. Journal of Crystal Growth (2020): 125739. 8. “Growth of dilute quaternary alloy InPNBi and its characterization ” S Das, Akant Sagar Sharma, S. A. Gazi, & S. Dhar. Journal of Crystal Growth, (2020) 535, 125532. 9. “Photoluminescence investigation of the properties of GaAsSb in the dilute Sb regime ”. S. Das, Akant Sagar Sharma, S. Bakshi, & S. Dhar. Journal of Materials Science: Materials in Electronics (2020), 1-8. 10. "Influence of Pb vs Ga solvents during liquid phase epitaxy on the optical and electrical properties of GaSbBi layers. " Akant Sagar Sharma, Subhasis Das, Sanowar Alam Gazi, and S. Dhar. Journal of Applied Physics 126, no. 15 (2019): 155702. 11. "Bi-Related below band Gap optical absorption band produced in GaSbBi after rapid thermal anneal at high temperatures. " M. K Bhowal, Subhasis Das, Akant Sagar Sharma, and S. Dhar. Journal of Electronic Materials 48, no. 8 (2019): 5131-5134. 12. “Anomalous increase of sub-bandgap photoluminescence from InPBi layers grown by liquid phase epitaxy ” Mithun Kumar Bhowal1, Subhasis Das2, Akant Sagar Sharma3, Santosh Chandra Das4 and Sunanda Dhar5 Accepted Manuscript online 15 April 2019 • © 2019 IOP Publishing Ltd, Materials Research Express. 13. “Hydrostatic Pressure Dependent Optoelectronic Properties of InGaAsN/GaAs Spherical Quantum Dots for Laser Diode Applications ” I.Mal, J.Jayarubi, S.Das, Akant Sagar Sharma, A.Jhon Peter, D.P.Samajder. physica status solidi (b) 2019 180039. 14. “Influence of Bi on the temperature-dependent fundamental band gap parameters of GaSb1−xBix ” Akant Sagar Sharma and S Dhar Published 30 January 2019 • © 2019 IOP Publishing Ltd Materials Research Express, Volume 6, Number 4. 15. “Dependence of Strain Distribution in InGaN/GaN Quantum Wire and Spherical Quantum Dot on the In Content in the Material ” Akant Sagar Sharma, S.Dhar. Journal of Electronic Materials, February, Volume 47, Issue 2, pp 1239–1243, 2018. 16. “Influence of Bi and N related impurity states on the band structure and band offset of GaSbBiN alloys ” D.P. Samajdar, U.Das, Akant Sagar Sharma, S.Das, S.Dhar. Current Applied Physics 16 (12), 1687-1694, 2016. 17. “Dependence of heavy hole exciton binding energy and the strain distribution in GaAsBi/GaAs finite spherical quantum dot on Bi content in the material ” Subhasis Das, Akant Sagar Sharma, T.D.Das, S.Dhar, Superlattices and Microstructures, 86(2015), 221-227. Oral Contribution: Creation of single-photon emitters in III-V dilute nitride nanowires via post-growth H-ion irradiation Conference: Nanowire Week 2025 Date, where: 25 – 29/08/2025, St John’s College, University of Cambridge, Cambridge, UK Authors: A. Sagar Sharma, P. De Vincenzi, N. Denis, F. Santangeli, S. Cianci, M. Yukimune, A. Polimeni, F. Ishikawa, M. De Luca. Oral Contribution: Tuning single-photon emission via checking the H-induced flaw complex in dilute III-V Nitride nanowires Conference: EMRS Fall meeting Date, where: September 16th -21st , 2024, University of Warsaw, Poland Authors: A. Sagar Sharma, P. De Vincenzi, N. Denis, F. Santangeli, R. Pallucchi, S.Cianci, A. Polimeni, M. Yukimune, F. Ishikawa, M. De Luca. Poster: “InPBiN epitaxial layers grown by liquid phase epitaxy” Conference: XIX IWPSD 2017 Date, where: 11-15th December, IIT Delhi, India Authors: Akant Sagar Sharma, Subhasis Das, S.Dhar Poster: “Evidence of Bismuth-related defect states in InPBi layers, grown by liquid phase epitaxy” Conference: ICMS (2017) Date, where: 16-18 February 2017. Department of Physics, Tripura University, Agartala, India Authors: M.K.Bhowal, Akant Sagar Sharma, S.Das, S. Dhar. Poster: “Strain in InGaN/GaN Quantum Dot and Nanowires, a theoretical study” Conference: ICMS (2017) Date, where: 16-18 February 2017. Department of Physics, Tripura University, Agartala, India Authors: Akant Sagar Sharma, S.Dhar. Oral Contribution: Calculation of strain distribution in InGaN/GaN quantum dots Conference: 6th International Conference on Computers and Devices for Communication (CODEC- 2015) Date, where: 16-18 Dec. 2015, Institute of Radio Physics and Electronics, University of Calcutta, Kolkata, India Authors: Akant Sagar Sharma, S. Dhar.

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< Back Paolo De Vincenzi PhD Student Curriculum Vitae Publications since 2023 PhD student in the Nanospectroscopy group at the Physics department of the Sapienza University of Rome, Italy. Currently working on creating QDs in GaAsN, GaAsP and InAsP NWs and tune their emission. 2021-2023 Master of Science (MSc) in Condensed Matter Physics at Sapienza University, Rome 2017-2021 Bachelor of Science (BSc) in Physics at Sapienza University, Rome Back to Top Sapienza University of Rome, Physics Department paolo.devincenzi@uniroma1.it Office: n° 312, third floor, Marconi building, Physics Department

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