Semih Cetindag Email & Phone Number

New York, United States

• Designed, programmed (Python), and tested in-situ thin-film deposition/coating tool combined with small angle X-ray scattering (GISAXS, GIWAXS) and ellipsometry.• Extensive hands-on experience working in a wet lab and cleanroom related to thin film semiconductor and compound semiconductor materials, thin film deposition, testing, characterization, performance metrics.• Investigated fundamental relationships between low-k dielectric thin films, process parameters (dry plasma etching, metal oxide infiltration with ALD) and morphology. • Analyzed and brainstorm with other group members about how the material properties and processing impact material and device functional performance.• Optimized and developed process parameters and recipes (plasma etch, gas composition) for low-k dielectric films.• Performed process characterization, integration and equipment troubleshooting.

Livermore, California, United States

• Assisted e-beam evaporation of Al2O3/Mo/Fe as catalyst for fabrication and plasma etched (RIE) carbon/boron nitride nanotube arrays in cleanroom setting for sensor applications, improved the gas sensing with optimized etching conditions by 20%.• Executed analytical characterizations of van der Waals nanotubes with Raman spectroscopy, IR, FTIR-ATR, and electron microscopy (SEM/TEM), gathered and organized scientific data analysis, and communicated the results to multiple teams.• Developed user proposals for characterization tools, created white papers and published results in ACS Nano. • Led projects focused on developing dry etch techniques (ULVAC systems) for high aspect ratio structures for carbon surfaces, Si, and SiO2.

Piscataway, New Jersey, United States

• Developed a novel, solution-based fabrication method for nanotube powder-embedded photocurable polymer thin-films (amorphous and crystalline).(Highlighted news in Science magazine, December 4th, 2019, Sponsored by NSF GOALI-1762913, MRS Fall 2019, Best presentation-in-session award) • Utilized a variety of material/surface chemistry characterization and electrochemical sensing techniques, developed photo-curable polymer formulations, hand-on characterization experience with scanning and transmission electron microscopy (SEM, TEM), electrochemical impedance spectroscopy (EIS), optical microscopy, ion-exchange chromatography, UV-vis to evaluate performance.• Pioneered rheology characterization of powders (nanotube powder flow, agglomeration, segregation, stickiness) .• Executed particle size analysis (DLS) and rheology characterization of inorganic/polymer suspensions (miscibility, molecular diffusion and physical instability), analyzed routes to prevent agglomeration in polymer suspensions, and efficient mechanical analysis methods (DMA) are developed and scaled-up.• Led theoretical and experimental analysis of fundamental ion transport phenomena and structural relationships, and material surface charge effects for Li-ion cell separators.• Developed novel fiber/nanotube/polyurethane-based thin film composites and micro/nanochannel arrays for energy generation and storage applications, resulting in five journal publications, a patent, and an NSF grant ($400k).• Observation of magnetic and electric field directed manipulation of powders in-operando with UV-curing of polymer solutions and colloidal assembly of nanoparticles and microfibers in liquid environment.

Doctor Of Philosophy - Phd, Mechanical Engineering

Master Of Science - Ms, Mechanical Engineering

Bachelor'S Degree, Nuclear Engineering