Electric characterization of micro/nano devices
Electrical characterization of materials (semiconductors, insulators and metals) as well as Low-dimensional (micro and nano) devices such as diodes, field effect transistors (MOSFETs and FETs), high-mobility transistors (HEMTs), Organic transistors, heterostructure and superlattice transistors, Quantum Dots and Quantum Wells, capacitors, metal-insulator-semiconductor (MIS) devices, metal-insulator-metal (MIM) devices etc. Static and dynamic current-voltage characteristics (DC and AC I-V) Capacitance measurements as a function of voltage and frequency (C-V, C-f) Low frequency noise measurements (LFN) Static and dynamic electrical reliability of devices using electrical stress (DC and AC electrical stress) Electric resistance measurement of metals, organic and inorganic semiconductors with Van der Pauw method (10-6 Ωcm-103 Ωcm) Mobility measurement of organic and inorganic materials and micro/nano electronic devices (diodes, transistors, heterojunctions) Spatial carriers’ density determination in materials and devices (thin and ultrathin films, multilayers) Multiple semiconductor carriers’ determination and contribution in mobility Magnetoresistivity measurement in materials and devices (thin and ultrathin films, multilayers) Measurements of anisotropy phenomena during electric transport of carriers (electronic transition metal-semiconductor and semiconductor-insulator) Instrumentation Keithley 4200-SCS Parameter Analyzer for I-V and C-V measurements for devices with up to four connectors (accuracy 0.1 fA) Fully automated device for electric characterization, static and dynamic electric stress tests which includes: o Voltage and current supplies Keithley o Electrometers Keithley (measurement up to 1 fA) o HP-Agilent 33120A function and arbitrary waveform generator with output voltage amplifier of up to 30 V. Semi-automatic characterization device for low-frequency noise measurements in the range 1 Hz-100 kHz which includes: o 2 SR760 FFT spectrum analyzers o 2 SR570 low-noise current pre-amplifiers o Battery lines NiMH, for device supply 2 Probe stations SussMicrotec EP4 for measurements on wafers using spikes Oxford LN cryostat Optistat DN-V for wafers (77-450 K) Cryogenic device LakeShore for the temperature control of measured samples (10–350 Κ) Hall conductance and magnetoresistance measuring setup operating at various temperatures and magnetic fields (0-1.4 T). 2 devices for 4-contacts measurements of specific resistivity using Van der Pauw method at various temperatures (10–350 Κ) 6 high accuracy Keithley ammeters (1 nA) 2 Keithley ammeters with accuracy 1 μA 8 continuous voltage supplies Keithley (-200-+200 V) 2 optic microscopes Alternating voltage supply TTi (1Hz-10 MHz) Publications 1 . Contoyiannis, Y, et. al., Intermittency-induced criticality in the random telegraph noise of nanoscale UTBB FD-SOI MOSFETs , Microelectronic Engineering, 216,111027 (2019). 2 . Antoniades, I.P., et. al., Tsallis non-extensive statistics and multifractal analysis of the dynamics of a fully-depleted MOSFET nano-device , Physica A (533), 121820 (2019). 3 . D.H. Tassis, et. al., Chaotic Behavior of Random Telegraph Noise in nanoscale UTBB FD-SOI MOSFETs , IEEE Transactions on Electron Devices 38, 517 (2017) 4 . N.G. Semaltianos, S. Logothetidis, N. Hastas, W. Perrie, S. Romani, R.J. Potter, G. Dearden, K.G. Watkins, P. French, M. Sharp, Modification of the electrical properties of PEDOT:PSS by the incorporation of ZnO nanoparticles synthesized by laser ablation , Chemical Physics Letters 484 (4-6), 283 (2010). 5 . L.E. Koutsokeras, N. Hastas, S. Kassavetis, O. Valassiades, C. Charitidis, S. Logothetidis, P. Patsalas, Electronic properties of binary and ternary, hard and refractory transition metal nitrides , Surface and Coatings Technology 204 (12-13), 2038 (2010). 6 . C. Koidis, S. Logothetidis, S. Kassavetis, A. Laskarakis, N.A. Hastas, O. Valassiades, Growth mechanisms and thickness effect on the properties of Al-doped ZnO thin films grown on polymeric substrates , Physica Status Solidi A Applications and Materials Science, 207 (7), 1581 (2010). 7 . P.G. Karagiannidis, N. Kalfagiannis, D. Georgiou, A. Laskarakis, N.A. Hastas, C. Pitsalidis and S. Logothetidis, Effects of buffer layer properties and annealing process on bulk heterojunction morphology and organic solar cell performance , Journal of Materials Chemistry 22 (29), 14624 (2012). 8 . Y-H. Lin, H. Faber, J.G. Labram, E. Stratakis, L. Sygellou, E. Kymakis, N.A. Hastas, R. Li, K. Zhao, A. Amassian, N.D. Treat, M. McLachlan, T.D. Anthopoulos, High electron mobility transistors based on solution-processed semiconducting metal oxide quasi-superlattices , Advanced Science 2(7), 1599958 (2015)
PHYSICOCHEMICAL CHARACTERIZATION, STUDY OF MATERIALS AND DEVICES
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