TECHNICAL SKILLS
My experience and area of expertise include the design, fabrication, and characterization of functional materials (2D materials and semiconductors) for electronic and optoelectronic devices.
Cleanroom Fabrication
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Photolithography (Suss MJB3)
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Electron-beam lithography (Vistec VB6, Crestec CABL, Zeiss EVO SEM + Raith)
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E-beam/thermal evaporation
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RF magnetron sputtering
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Reactive ion etch (AMAT centura MXP)
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Plasma etch
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Wet chemical etch
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Rapid thermal anneal (Ulvac Tech. MILA 3000)
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Wire bonding (Westbond)
Design, Data Analysis, & Instrument Control
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Python
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Matlab
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C++
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IGOR Pro
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Origin
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AutoCAD
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Solidworks
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LabVIEW
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Microsoft office
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CorelDRAW
Materials Characterization
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SEM (Philips XL30) with EDX
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AFM (Park systems, Bruker, NT-MDT)
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X-ray diffraction (Siemens D5000, Philip X'pert MRD)
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Thin film analyzer (Filmetrics F40)
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Cryogenic system and probe station (attoDRY2100, Quantum Design PPMS, Scientific Magnetics, Lakeshore CPX-VF, Janis)
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Electrical and thermoelectrical inspection
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Quasi-DC technique by SR830/860 lock-in amplifier
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Probe station (Signatone) with HP4156B semiconductor parameter analyzer
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2-omega method for thermopower measurement
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Keithley 2400, 2612B sourcemeters & 2000 multimeter
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Keithley 6485 picoammeter, 6517A electrometer
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SR570 and DL1211 current pre-amp
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Optical characterization
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Micro-Raman spectroscopy (Horiba LabRAM, Renishaw inVia)
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UV-VIS spectrophotometer (Varian Cary 300 Bio)
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VUV spectrophotometer
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Fluorescence microscopy
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Photoluminescence
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Cathodoluminescence (Oxford MonoCL) equipped with SEM
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Ellipsometry
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Magnetic measurement
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Magnetic circular dichroism (MCD), magneto-optic Kerr effect (MOKE)
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Ecopia Hall effect measurement system
Materials Growth
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Transparent conducting oxide AZO by RF magnetron sputtering
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Graphene and twisted bilayer graphene by thermal CVD
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II-VI semiconducting nanomaterials such as zinc oxide and zinc sulfide by thermal CVD
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