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Organic Thin Film Transistor (OTFT). Highly photo-sensitive OTFT . h ν. D (Au). S (Au). I ph / I dark = 4×10 3. Active layer. TIPS- pentacene. 4(HP3T)-benzene. 4(HPBT)-benzene. Insulator (SiO 2 ). Gate (doped Si wafer). Photo-sensitivity (A/W)
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Organic Thin Film Transistor (OTFT) Highly photo-sensitive OTFT hν D (Au) S (Au) Iph/Idark = 4×103 Active layer TIPS-pentacene 4(HP3T)-benzene 4(HPBT)-benzene Insulator (SiO2) Gate (doped Si wafer) Photo-sensitivity (A/W) ΔId(≡ Id,ph−Id,dark ) /Pinc
Organic Thin Film Transistor (OTFT) Memory operation with gate-field and light Erase Write ① ② ③ ④ Read (off) Read (on) On state Off state • High reproducibility and retention ability (>1h) Memory operation processes: [writing-reading(on-state)-erasing-reading(off-state)]
UV Organic Thin Film Transistor (OTFT) Flexible OTFT Gate Active layer Channel width Drain Source Channel length Active layer: Pentacene Electrodes: PEDOT Insulating layer: PVCN Poly(3,4-ethylenedioxythiophene) (PEDOT) Poly(vinyl cinnamate) (PVCN) Pentacene