Nikhil Tiwale

Brookhaven National Laboratory

Center for Functional Nanomaterials
Bldg. 735, Room 1021
P.O. Box 5000
Upton, NY 11973-5000

(631) 344-3782
(631) 992-2814
ntiwale@bnl.gov

Expertise | Research | Education | Appointments | Publications | Highlights | Awards

Expertise

• Micro/Nano-fabrication - Electron Beam Lithography, Photolithography
• Atomic layer deposition (ALD) & infiltration synthesis
• Oxide/hybrid semiconductors & dielectrics
• (Opto)electronic devices & sensors

Research Activities

Lithography-based nanostructuring & hybridization for enhancing materials & devices

• Infiltration synthesis of hybrid resists for high-fidelity nanolithography
• Scalable direct-write fabrication processes for nano(opto)electronic devices & sensors

Education

Ph.D., University of Cambridge, UK (2017)

• Engineering - Solid State Electronics and Nanoscale Science
• Dissertation: Zinc oxide nanowire field-effect transistors for sensor applications [DOI: 10.17863/CAM.14429]

B.Tech. + M.Tech., Indian Institute of Technology Bombay, India (2012)

• Metallurgical Engineering and Materials Science | Specialization – Ceramics and Composites
• Dissertation: Multi-point optical curvature measurement setup

Professional Appointments

Center for Functional Nanomaterials | Brookhaven National Laboratory

• Research Staff (Sept. 2022 - Present)
• Scientific Associate (Sept. 2021 - Aug. 2022)
• Research Associate (Mar. 2018 - Sept. 2021)

Adaptix Ltd

• Silicon Process Engineer (Oct. 2017 – Mar. 2018)

Nanoscience Centre | University of Cambridge

• Cleanroom Equipment Instructor (Apr. 2014 – May 2017)

Selected Publications

• Nowak SR, Tiwale N, Doerk GS, et al (2023) Responsive Blends of Block Copolymers Stabilize the Hexagonally Perforated Lamellae Morphology. Soft Matter. https://doi.org/10.1039/d3sm00142c
• Li Z, He J, Subramanian A, et al (2023) Unraveling the ultrahigh modulus of resilience of Core-Shell SU-8 nanocomposite nanopillars fabricated by vapor-phase infiltration. Materials & Design 227:111770. https://doi.org/10.1016/j.matdes.2023.111770
• Senanayak SP, Dey K, Shivanna R, et al (2023) Charge transport in mixed metal halide perovskite semiconductors. Nature Materials 22:216–224. https://doi.org/10.1038/s41563-022-01448-2
• Russell ST, Bae S, Subramanian A, et al (2022) Priming self-assembly pathways by stacking block copolymers. Nature Communications 13:. https://doi.org/10.1038/s41467-022-34729-0
• Saifullah MSM, Tiwale N, Ganesan R (2022) Review of metal-containing resists in electron beam lithography: perspectives for extreme ultraviolet patterning. Journal of Micro/Nanopatterning, Materials, and Metrology 21:. https://doi.org/10.1117/1.jmm.21.4.041402
• Subramanian A, Tiwale N, Kisslinger K, Nam C (2022) Reduced Stochastic Resistive Switching in Organic-Inorganic Hybrid Memristors by Vapor-Phase Infiltration. Advanced Electronic Materials 2200172. https://doi.org/10.1002/aelm.202200172
• Subramanian A, Tiwale N, Lee W-I, Nam C-Y (2021) Templating Functional Materials Using Self-Assembled Block Copolymer Thin-Film for Nanodevices. Frontiers in Nanotechnology 3:. https://doi.org/10.3389/fnano.2021.766690
• Dai Z, Gao Z, Pershoguba SS, et al (2021) Quantum-Well Bound States in Graphene Heterostructure Interfaces. Physical Review Letters 127:. https://doi.org/10.1103/physrevlett.127.086805
• Zhou Y, Tiwale N, Yin Y, et al (2021) Effects of polymer grain boundary passivation on organic–inorganic hybrid perovskite field-effect transistors. Applied Physics Letters 119:183303. https://doi.org/10.1063/5.0065164
• Tiwale N, Senanayak SP, Rubio-Lara J, et al (2021) Solution-Processed High-Performance ZnO Nano-FETs Fabricated with Direct-Write Electron-Beam-Lithography-Based Top-Down Route. Advanced Electronic Materials 7:2000978. https://doi.org/10.1002/aelm.202000978
• Tiwale N, Subramanian A, Freychet G, et al (2021) Hybrid resist synthesis by ex-situ vapor-phase infiltration of metal oxides into conventional organic resists. Advances in Patterning Materials and Processes XXXVIII. https://doi.org/10.1117/12.2583908
• Tiwale N, Subramanian A, Dai Z, et al (2020) Large mobility modulation in ultrathin amorphous titanium oxide transistors. Communications Materials 1:. https://doi.org/10.1038/s43246-020-00096-w
• Tiwale N, Subramanian A, Kisslinger K, et al (2020) Infiltration synthesis of hybrid nanocomposite resists for advanced nanolithography. Advances in Patterning Materials and Processes XXXVII. https://doi.org/10.1117/12.2552164
• Subramanian A, Tiwale N, Doerk G, et al (2019) Enhanced Hybridization and Nanopatterning via Heated Liquid-Phase Infiltration into Self-Assembled Block Copolymer Thin Films. ACS Applied Materials & Interfaces 12:1444–1453. https://doi.org/10.1021/acsami.9b16148
• Tiwale N, Subramanian A, Kisslinger K, et al (2019) Advancing next generation nanolithography with infiltration synthesis of hybrid nanocomposite resists. Journal of Materials Chemistry C 7:8803–8812. https://doi.org/10.1039/c9tc02974e
• Tiwale N, Senanayak SP, Rubio-Lara J, et al (2019) Optimization of Transistor Characteristics and Charge Transport in Solution Processed ZnO Thin Films Grown from Zinc Neodecanoate. Electronic Materials Letters 15:702–711. https://doi.org/10.1007/s13391-019-00173-4
• Subramanian A, Tiwale N, Nam C-Y (2018) Review of Recent Advances in Applications of Vapor-Phase Material Infiltration Based on Atomic Layer Deposition. JOM 71:185–196. https://doi.org/10.1007/s11837-018-3141-4
• Aziz A, Tiwale N, Hodge SA, et al (2018) Core–Shell Electrospun Polycrystalline ZnO Nanofibers for Ultra-Sensitive NO2 Gas Sensing. ACS Applied Materials & Interfaces 10:43817–43823. https://doi.org/10.1021/acsami.8b17149
• Tan EKW, Rughoobur G, Rubio-Lara J, et al (2018) Nanofabrication of Conductive Metallic Structures on Elastomeric Materials. Scientific Reports 8:. https://doi.org/10.1038/s41598-018-24901-2
• Tiwale N (2015) Zinc oxide nanowire gas sensors: fabrication, functionalisation and devices. Materials Science and Technology 31:1681–1697. https://doi.org/10.1179/1743284714y.0000000747

Research Highlights

Patents and records of inventions

• “Quantum-Well Bound States in Graphene Heterostructure Interfaces”, U.S. Provisional Patent Application, 63/331799, April 2022
• “Metal-oxide infiltrated organic-inorganic hybrid resistive random-access memory (ReRAM) devices”, BNL Record of Invention, June 2021 | U.S. Provisional Patent Application 63/217367, July 2021
• “Substrates for optical and electron spectro-microscopy characterization of 2D materials”, BNL Record of Invention, June 2021
• “Inorganic Infiltrated Polymer Hybrid Thin Film Resists for Advanced Lithography”, BNL Record of Invention, March 2019 | U.S. Provisional Patent Application 62/814,633, March 2019 | U.S. Provisional Patent Application 62/853,783, May 2019 | U.S. Patent Application 16/808661 filed March 4^th, 2020

Media Coverage

• Scientists Build Nanoscale Parapets, Aqueducts, and Other Shapes
• Storing Electronic Data in Nanostructured Hybrids
• Top-10 Areas of Amazing Science at Brookhaven Lab in 2021
• Resisting Moore's Law Limits with Hybrid Materials
• Next-Gen Semiconductor Manufacturing Tech Wins DOE National Pitch Competition
• Tracking Electrons on the Move in Twisted Graphene
• Layered Graphene with a Twist Displays Unique Quantum Confinement in 2-D
• Using Nanoparticles to Reveal Polymer Nanoarchitectures
• Nikhil Tiwale: Practicing the Art of Nanofabrication: selected for U.S. DOE Press Release
• Catching Light with 3D Hybrid Nanostructures
• Enhancing Materials for Hi-Res Patterning to Advance Microelectronics : selected for U.S. DOE Press Release

Awards & Recognition

• Best poster award -2^nd place at 2022 EUVL Workshop & Supplier Showcase (virtual)
• SPIE Advanced Lithography + Patterning 2021 C. Grant Willson Best Paper Award
• Work included in the Top-10 Areas of Amazing Science at Brookhaven Lab, 2021
• Top 100 entry in Create the Future 2020 Design Contest, Tech Brief Media Group, Dec. 2020
• Winner of the Poster Presentation Session (NSLS-II and CFN Users' Meeting 2019)
• Outstanding Oral Presentation Award (Early Career Research Symposium 2018)
• Cambridge-India Partnership Scholarship by Cambridge Trusts, United Kingdom, 2012-15
• National Talent Search Exam (NTSE) Scholarship, India, 2004