Microplasma Current Switch and Its Characteristics

• Published in: IEEE transactions on plasma science 2010-05, Vol.38 (5), p.1106-1110
• Main Authors: SEUNGJUN YI, JIE YU CAI, MOON, Cheol-Hee
• Format: Article
• Language: English
• Subjects: Active matrix organic light emitting diodes; Conductivity; Current measurement; Current switch; Devices; Electric currents; Electron temperature; Electrons; Estimates; Exact sciences and technology; floating double probe; Light emitting diodes; Matrix; matrix addressing; microplasma switch; Microplasmas; Organic light emitting diodes; Physics; Physics of gases, plasmas and electric discharges; Physics of plasmas and electric discharges; Plasma density; Plasma devices; Plasma measurements; Plasma physics; Plasma properties; Plasma switches (e.g., spark gaps); Plasma temperature; Switches; Switching; Temperature; Unit cell
• ISSN: 0093-3813; 1939-9375
• DOI: 10.1109/TPS.2010.2045135

A microplasma current switch (MPCS) for a device operated in a current-mode-like organic light-emitting diodes, which features matrix addressability and current switching, is presented, as well as its architecture and operational principle. The MPCS utilizes the intrinsic memory and conductivity of plasmas to achieve matrix addressability and current switching. We have fabricated a 100 mm × 100 mm MPCS panel with a cell pitch of 1080 ¿m × 1080 ¿m. Matrix addressability and current switching are verified. Moreover, the current-voltage curve of the unit cell is measured and analyzed. It exhibits the characteristic of a floating-double-probe diagnosing plasma parameters, so that we estimate the plasma density and electron temperature from it.